/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-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 19:52:43,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 19:52:43,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 19:52:43,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 19:52:43,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 19:52:43,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 19:52:43,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 19:52:43,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf [2021-07-09 19:52:43,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 19:52:43,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 19:52:43,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 19:52:43,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 19:52:43,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 19:52:43,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 19:52:43,857 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 19:52:43,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 19:52:43,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 19:52:43,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 19:52:43,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 19:52:43,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 19:52:43,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 19:52:43,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 19:52:43,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 19:52:43,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 19:52:43,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 19:52:43,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 19:52:43,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 19:52:43,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 19:52:43,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 19:52:43,861 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 19:52:43,861 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-09 19:52:43,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 19:52:43,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 19:52:44,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 19:52:44,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 19:52:44,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 19:52:44,124 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 19:52:44,125 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 19:52:44,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl [2021-07-09 19:52:44,125 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl' [2021-07-09 19:52:44,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 19:52:44,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 19:52:44,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 19:52:44,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 19:52:44,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 19:52:44,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 19:52:44,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 19:52:44,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 19:52:44,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 19:52:44,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/1) ... [2021-07-09 19:52:44,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 19:52:44,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 19:52:44,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 19:52:44,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 19:52:44,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (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 [2021-07-09 19:52:44,228 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 19:52:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 19:52:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 19:52:44,229 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 19:52:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 19:52:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 19:52:44,229 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 19:52:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 19:52:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 19:52:44,230 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 19:52:44,494 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 19:52:44,494 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-09 19:52:44,495 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-09 19:52:44,495 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-09 19:52:44,496 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 07:52:44 BoogieIcfgContainer [2021-07-09 19:52:44,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 19:52:44,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 19:52:44,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 19:52:44,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 19:52:44,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:52:44" (1/2) ... [2021-07-09 19:52:44,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fef12f8 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 07:52:44, skipping insertion in model container [2021-07-09 19:52:44,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 07:52:44" (2/2) ... [2021-07-09 19:52:44,501 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2021-07-09 19:52:44,504 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 19:52:44,505 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 19:52:44,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 19:52:44,505 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 19:52:44,545 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-09 19:52:44,560 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 [2021-07-09 19:52:44,590 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 19:52:44,590 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 19:52:44,590 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 19:52:44,591 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 19:52:44,591 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 19:52:44,591 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 19:52:44,591 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 19:52:44,591 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 19:52:44,596 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 15 transitions, 46 flow [2021-07-09 19:52:44,605 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:44,626 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:44,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:44,633 INFO L82 PathProgramCache]: Analyzing trace with hash 327878231, now seen corresponding path program 1 times [2021-07-09 19:52:44,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:44,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004976063] [2021-07-09 19:52:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:44,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:44,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004976063] [2021-07-09 19:52:44,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004976063] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 19:52:44,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 19:52:44,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-09 19:52:44,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821661989] [2021-07-09 19:52:44,734 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 19:52:44,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:44,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 19:52:44,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 19:52:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:44,743 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:44,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:44,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:44,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 19:52:44,753 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:44,754 INFO L82 PathProgramCache]: Analyzing trace with hash 652599305, now seen corresponding path program 1 times [2021-07-09 19:52:44,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:44,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132390179] [2021-07-09 19:52:44,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:44,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:44,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132390179] [2021-07-09 19:52:44,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132390179] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:44,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676905146] [2021-07-09 19:52:44,784 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 [2021-07-09 19:52:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:44,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-09 19:52:44,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:44,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676905146] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:44,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:44,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-07-09 19:52:44,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131967651] [2021-07-09 19:52:44,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 19:52:44,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:44,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 19:52:44,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-09 19:52:44,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:44,882 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:44,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:44,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:44,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:45,130 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:45,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:45,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1221187306, now seen corresponding path program 1 times [2021-07-09 19:52:45,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:45,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121230537] [2021-07-09 19:52:45,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 19:52:45,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:45,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121230537] [2021-07-09 19:52:45,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121230537] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:45,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152143569] [2021-07-09 19:52:45,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:45,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-09 19:52:45,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 19:52:45,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152143569] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:45,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:45,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-09 19:52:45,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108305696] [2021-07-09 19:52:45,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 19:52:45,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:45,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 19:52:45,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 19:52:45,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:45,244 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:45,245 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) [2021-07-09 19:52:45,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:45,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:45,478 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:45,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:45,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1598119496, now seen corresponding path program 2 times [2021-07-09 19:52:45,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:45,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958731424] [2021-07-09 19:52:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 19:52:45,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:45,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958731424] [2021-07-09 19:52:45,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958731424] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:45,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376838793] [2021-07-09 19:52:45,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:45,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 19:52:45,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:45,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-09 19:52:45,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 19:52:45,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376838793] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:45,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:45,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-09 19:52:45,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504595229] [2021-07-09 19:52:45,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 19:52:45,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:45,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 19:52:45,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-09 19:52:45,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:45,609 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:45,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:45,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:45,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:45,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:45,845 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:45,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:45,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1197682858, now seen corresponding path program 3 times [2021-07-09 19:52:45,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:45,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472403899] [2021-07-09 19:52:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 19:52:45,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:45,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472403899] [2021-07-09 19:52:45,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472403899] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:45,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889424494] [2021-07-09 19:52:45,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:45,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-09 19:52:45,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:45,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-09 19:52:45,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 19:52:46,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889424494] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:46,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:46,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-09 19:52:46,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462488849] [2021-07-09 19:52:46,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 19:52:46,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:46,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 19:52:46,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 19:52:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:46,042 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:46,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:46,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:46,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:46,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:46,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:46,304 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:46,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:46,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1968209912, now seen corresponding path program 4 times [2021-07-09 19:52:46,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:46,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905225253] [2021-07-09 19:52:46,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:46,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:46,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905225253] [2021-07-09 19:52:46,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905225253] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:46,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658890110] [2021-07-09 19:52:46,355 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:46,394 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 19:52:46,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:46,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-09 19:52:46,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:46,528 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 19:52:46,528 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 [2021-07-09 19:52:46,602 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 19:52:46,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 19:52:46,604 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 19:52:46,605 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-07-09 19:52:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:46,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658890110] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:46,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:46,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-07-09 19:52:46,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147193867] [2021-07-09 19:52:46,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 19:52:46,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:46,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 19:52:46,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-09 19:52:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:46,616 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:46,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 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) [2021-07-09 19:52:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:46,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:46,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:46,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:46,877 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:46,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:46,878 INFO L82 PathProgramCache]: Analyzing trace with hash -84744810, now seen corresponding path program 5 times [2021-07-09 19:52:46,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:46,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431153004] [2021-07-09 19:52:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:46,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:46,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431153004] [2021-07-09 19:52:46,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431153004] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:46,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033488135] [2021-07-09 19:52:46,939 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:46,972 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-09 19:52:46,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:46,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-09 19:52:46,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:47,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033488135] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:47,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:47,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-09 19:52:47,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110731785] [2021-07-09 19:52:47,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 19:52:47,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:47,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 19:52:47,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-07-09 19:52:47,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:47,053 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:47,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:47,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:47,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:47,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:47,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:47,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:47,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:47,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-09 19:52:47,366 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:47,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:47,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1690948905, now seen corresponding path program 6 times [2021-07-09 19:52:47,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:47,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93684945] [2021-07-09 19:52:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 19:52:47,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:47,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93684945] [2021-07-09 19:52:47,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93684945] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:47,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939915603] [2021-07-09 19:52:47,459 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:47,493 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-09 19:52:47,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:47,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-09 19:52:47,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 19:52:47,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939915603] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:47,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:47,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-09 19:52:47,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774350649] [2021-07-09 19:52:47,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 19:52:47,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:47,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 19:52:47,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-09 19:52:47,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:47,560 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:47,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:47,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:47,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-09 19:52:47,909 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:47,909 INFO L82 PathProgramCache]: Analyzing trace with hash -775286985, now seen corresponding path program 7 times [2021-07-09 19:52:47,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:47,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300179548] [2021-07-09 19:52:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:48,011 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 19:52:48,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:48,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300179548] [2021-07-09 19:52:48,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300179548] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:48,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169999808] [2021-07-09 19:52:48,012 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:48,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-09 19:52:48,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 19:52:48,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169999808] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:48,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:48,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-09 19:52:48,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389035032] [2021-07-09 19:52:48,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 19:52:48,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:48,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 19:52:48,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-07-09 19:52:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:48,130 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:48,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:48,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:48,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:48,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:48,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:48,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:48,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:48,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:48,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:48,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-09 19:52:48,485 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:48,485 INFO L82 PathProgramCache]: Analyzing trace with hash 80811753, now seen corresponding path program 8 times [2021-07-09 19:52:48,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:48,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961776542] [2021-07-09 19:52:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 19:52:48,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:48,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961776542] [2021-07-09 19:52:48,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961776542] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:48,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176403743] [2021-07-09 19:52:48,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:48,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 19:52:48,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:48,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-09 19:52:48,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 19:52:48,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176403743] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:48,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:48,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-07-09 19:52:48,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013555537] [2021-07-09 19:52:48,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-09 19:52:48,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:48,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-09 19:52:48,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-07-09 19:52:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:48,719 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:48,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:48,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:49,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-09 19:52:49,074 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:49,075 INFO L82 PathProgramCache]: Analyzing trace with hash 850068855, now seen corresponding path program 9 times [2021-07-09 19:52:49,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:49,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804835691] [2021-07-09 19:52:49,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:49,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:49,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804835691] [2021-07-09 19:52:49,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804835691] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:49,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31904527] [2021-07-09 19:52:49,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-09 19:52:49,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-09 19:52:49,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:49,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:49,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:49,502 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-09 19:52:49,503 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 19:52:49,503 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 [2021-07-09 19:52:50,394 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-07-09 19:52:50,500 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 274 [2021-07-09 19:52:51,912 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 19:52:51,914 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 19:52:51,914 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 19:52:51,914 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-09 19:52:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:51,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31904527] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:51,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:51,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-07-09 19:52:51,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318792431] [2021-07-09 19:52:51,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 19:52:51,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:51,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 19:52:51,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-09 19:52:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:51,921 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:51,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:51,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:52,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:52,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-09 19:52:52,235 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:52,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:52,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1072764759, now seen corresponding path program 10 times [2021-07-09 19:52:52,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:52,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096240297] [2021-07-09 19:52:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:52,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:52,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096240297] [2021-07-09 19:52:52,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096240297] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:52,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256624083] [2021-07-09 19:52:52,321 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:52,356 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 19:52:52,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:52,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-09 19:52:52,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:52,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256624083] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:52,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:52,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-09 19:52:52,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334426759] [2021-07-09 19:52:52,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 19:52:52,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:52,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 19:52:52,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-09 19:52:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:52,410 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:52,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:52:52,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:52,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:52,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:52,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:52,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:52,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:52,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:52,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:52,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:52,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:52,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:52,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 19:52:52,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:52,792 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:52,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:52,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1127101558, now seen corresponding path program 11 times [2021-07-09 19:52:52,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:52,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456240404] [2021-07-09 19:52:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:52,906 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 19:52:52,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:52,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456240404] [2021-07-09 19:52:52,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456240404] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:52,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743893015] [2021-07-09 19:52:52,906 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:52,938 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-09 19:52:52,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:52,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-09 19:52:52,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 19:52:53,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743893015] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:53,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:53,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-07-09 19:52:53,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351895805] [2021-07-09 19:52:53,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 19:52:53,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:53,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 19:52:53,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-07-09 19:52:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:53,071 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:53,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 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) [2021-07-09 19:52:53,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:53,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:53,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:53,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:53,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-09 19:52:53,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 19:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 19:52:53,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable314 [2021-07-09 19:52:53,601 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:53,601 INFO L82 PathProgramCache]: Analyzing trace with hash 119935784, now seen corresponding path program 12 times [2021-07-09 19:52:53,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:53,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445085983] [2021-07-09 19:52:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:53,738 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 19:52:53,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:53,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445085983] [2021-07-09 19:52:53,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445085983] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:53,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695114125] [2021-07-09 19:52:53,738 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:53,796 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-09 19:52:53,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:53,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-09 19:52:53,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:54,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695114125] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:54,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:54,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 26 [2021-07-09 19:52:54,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621898702] [2021-07-09 19:52:54,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-09 19:52:54,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:54,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-09 19:52:54,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-07-09 19:52:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:54,040 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:54,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 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) [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-09 19:52:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 19:52:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 19:52:54,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 19:52:54,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:54,731 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:54,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1037432138, now seen corresponding path program 13 times [2021-07-09 19:52:54,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:54,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726182939] [2021-07-09 19:52:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 19:52:54,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:54,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726182939] [2021-07-09 19:52:54,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726182939] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:54,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156674088] [2021-07-09 19:52:54,896 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:54,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-09 19:52:54,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:55,124 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 19:52:55,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156674088] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:55,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:52:55,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-07-09 19:52:55,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32048704] [2021-07-09 19:52:55,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-09 19:52:55,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:52:55,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-09 19:52:55,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-07-09 19:52:55,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:55,125 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:52:55,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 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) [2021-07-09 19:52:55,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-09 19:52:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:52:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 19:52:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 19:52:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 19:52:55,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 19:52:55,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable316 [2021-07-09 19:52:55,745 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:52:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:52:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1738867944, now seen corresponding path program 14 times [2021-07-09 19:52:55,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:52:55,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393096322] [2021-07-09 19:52:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:52:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:52:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 19:52:55,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:52:55,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393096322] [2021-07-09 19:52:55,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393096322] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:52:55,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299461793] [2021-07-09 19:52:55,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:52:55,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 19:52:55,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:52:55,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-09 19:52:55,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:52:56,515 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-09 19:52:56,516 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 19:52:56,516 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 [2021-07-09 19:52:57,275 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 380 [2021-07-09 19:52:57,428 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 383 [2021-07-09 19:52:58,571 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 513 [2021-07-09 19:52:58,836 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 516 [2021-07-09 19:52:59,270 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 757 [2021-07-09 19:52:59,832 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 782 [2021-07-09 19:53:00,634 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 397 [2021-07-09 19:53:00,803 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 432 [2021-07-09 19:53:01,014 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 439 [2021-07-09 19:53:01,671 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 387 [2021-07-09 19:53:02,314 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 392 [2021-07-09 19:53:02,584 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 718 DAG size of output: 687 [2021-07-09 19:53:02,926 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 720 [2021-07-09 19:53:03,345 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 760 DAG size of output: 727 [2021-07-09 19:53:04,091 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 985 [2021-07-09 19:53:04,927 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1008 [2021-07-09 19:53:06,380 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1924 DAG size of output: 1536 [2021-07-09 19:53:07,414 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 483 [2021-07-09 19:53:07,616 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 486 [2021-07-09 19:53:08,375 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 347 [2021-07-09 19:53:08,748 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 711 [2021-07-09 19:53:09,196 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 737 [2021-07-09 19:53:09,926 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 367 [2021-07-09 19:53:10,074 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 402 [2021-07-09 19:53:10,282 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 408 [2021-07-09 19:53:11,611 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 657 [2021-07-09 19:53:11,902 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 690 [2021-07-09 19:53:12,263 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 696 [2021-07-09 19:53:12,879 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 1082 DAG size of output: 940 [2021-07-09 19:53:13,595 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 964 [2021-07-09 19:53:14,873 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1466 [2021-07-09 19:53:18,073 WARN L205 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 3619 DAG size of output: 2834 [2021-07-09 19:53:21,755 WARN L205 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 3664 DAG size of output: 2879 [2021-07-09 19:53:25,949 WARN L205 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-09 19:53:30,149 WARN L205 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-09 19:53:35,214 WARN L205 SmtUtils]: Spent 5.05 s on a formula simplification. DAG size of input: 3707 DAG size of output: 2922 [2021-07-09 19:53:39,873 WARN L205 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 2924 DAG size of output: 2915 [2021-07-09 19:53:44,856 WARN L205 SmtUtils]: Spent 4.96 s on a formula simplification. DAG size of input: 2912 DAG size of output: 3217 [2021-07-09 19:53:52,713 WARN L205 SmtUtils]: Spent 7.84 s on a formula simplification. DAG size of input: 2696 DAG size of output: 3553 [2021-07-09 19:53:52,885 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 2516 [2021-07-09 19:53:53,948 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 278 [2021-07-09 19:53:55,825 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 2495 DAG size of output: 2494 [2021-07-09 19:54:02,206 WARN L205 SmtUtils]: Spent 6.37 s on a formula simplification. DAG size of input: 2493 DAG size of output: 3700 [2021-07-09 19:54:02,507 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 2169 DAG size of output: 2169 [2021-07-09 19:54:02,782 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 2126 DAG size of output: 2126 [2021-07-09 19:54:03,764 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 977 [2021-07-09 19:54:05,489 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 257 [2021-07-09 19:54:05,714 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 340 [2021-07-09 19:54:06,017 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 396 [2021-07-09 19:54:06,468 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 592 [2021-07-09 19:54:07,268 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 185 [2021-07-09 19:54:07,396 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 243 [2021-07-09 19:54:07,736 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 265 [2021-07-09 19:54:08,033 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 425 [2021-07-09 19:54:08,480 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 623 [2021-07-09 19:54:09,499 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1090 DAG size of output: 844 [2021-07-09 19:54:10,793 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 322 [2021-07-09 19:54:11,066 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 350 [2021-07-09 19:54:12,008 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 285 [2021-07-09 19:54:12,246 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 391 [2021-07-09 19:54:12,555 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 449 [2021-07-09 19:54:13,470 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 238 [2021-07-09 19:54:13,664 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 360 [2021-07-09 19:54:13,923 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 396 [2021-07-09 19:54:14,252 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 455 [2021-07-09 19:54:14,960 WARN L205 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 659 [2021-07-09 19:54:15,901 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 827 DAG size of output: 710 [2021-07-09 19:54:16,765 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 245 [2021-07-09 19:54:16,927 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 305 [2021-07-09 19:54:17,153 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 409 [2021-07-09 19:54:17,461 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 472 [2021-07-09 19:54:18,435 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 221 [2021-07-09 19:54:18,579 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 275 [2021-07-09 19:54:18,786 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 374 [2021-07-09 19:54:19,047 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 490 DAG size of output: 411 [2021-07-09 19:54:19,388 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 475 [2021-07-09 19:54:20,092 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 714 [2021-07-09 19:54:21,887 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1682 DAG size of output: 1237 [2021-07-09 19:54:24,816 WARN L205 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 2518 DAG size of output: 1697 [2021-07-09 19:54:28,140 WARN L205 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 2537 DAG size of output: 1736 [2021-07-09 19:54:32,448 WARN L205 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 2890 DAG size of output: 1831 [2021-07-09 19:54:33,509 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 700 DAG size of output: 1050 [2021-07-09 19:54:33,866 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 660 [2021-07-09 19:54:34,430 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 823 [2021-07-09 19:54:35,426 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 257 [2021-07-09 19:54:35,619 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 285 [2021-07-09 19:54:35,880 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 348 [2021-07-09 19:54:36,252 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 513 [2021-07-09 19:54:36,436 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 429 [2021-07-09 19:54:37,358 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 283 [2021-07-09 19:54:37,566 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 309 [2021-07-09 19:54:38,438 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 270 [2021-07-09 19:54:38,595 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 296 [2021-07-09 19:54:38,966 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 492 [2021-07-09 19:54:39,488 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 712 DAG size of output: 624 [2021-07-09 19:54:40,226 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 814 [2021-07-09 19:54:41,400 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1058 [2021-07-09 19:54:43,019 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 1723 DAG size of output: 1396 [2021-07-09 19:54:43,668 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 828 [2021-07-09 19:54:44,240 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 766 [2021-07-09 19:54:44,604 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 639 [2021-07-09 19:54:44,710 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 332 [2021-07-09 19:54:46,328 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 248 [2021-07-09 19:54:46,478 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 212 [2021-07-09 19:54:46,770 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 388 [2021-07-09 19:54:47,377 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 707 [2021-07-09 19:54:48,293 WARN L205 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 1357 DAG size of output: 863 [2021-07-09 19:54:49,601 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1729 DAG size of output: 1197 [2021-07-09 19:54:52,876 WARN L205 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 2363 DAG size of output: 1672 [2021-07-09 19:54:56,655 WARN L205 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 2424 DAG size of output: 1716 [2021-07-09 19:55:02,065 WARN L205 SmtUtils]: Spent 5.40 s on a formula simplification. DAG size of input: 2831 DAG size of output: 1844 [2021-07-09 19:55:12,827 WARN L205 SmtUtils]: Spent 10.75 s on a formula simplification. DAG size of input: 5382 DAG size of output: 3237 [2021-07-09 19:55:14,048 WARN L205 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 707 DAG size of output: 1000 [2021-07-09 19:55:14,601 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 712 [2021-07-09 19:55:15,352 WARN L205 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 683 DAG size of output: 877 [2021-07-09 19:55:15,831 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 729 [2021-07-09 19:55:16,652 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 262 [2021-07-09 19:55:16,849 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 300 [2021-07-09 19:55:17,066 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 374 [2021-07-09 19:55:17,933 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 229 [2021-07-09 19:55:18,778 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 344 [2021-07-09 19:55:19,694 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 334 [2021-07-09 19:55:20,748 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 369 [2021-07-09 19:55:21,170 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 560 [2021-07-09 19:55:21,945 WARN L205 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 726 [2021-07-09 19:55:22,909 WARN L205 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 962 DAG size of output: 768 [2021-07-09 19:55:24,097 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1071 DAG size of output: 879 [2021-07-09 19:55:25,362 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1304 DAG size of output: 904 [2021-07-09 19:55:27,198 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1744 DAG size of output: 1304 [2021-07-09 19:55:29,701 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 2015 DAG size of output: 1655 [2021-07-09 19:55:30,500 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 879 [2021-07-09 19:55:30,852 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 490 [2021-07-09 19:55:31,137 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 491 [2021-07-09 19:55:32,325 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2021-07-09 19:55:33,176 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 289 [2021-07-09 19:55:33,442 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 317 [2021-07-09 19:55:33,825 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 433 [2021-07-09 19:55:34,526 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 666 [2021-07-09 19:55:35,546 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 945 DAG size of output: 803 [2021-07-09 19:55:35,722 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 354 [2021-07-09 19:55:36,400 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 338 [2021-07-09 19:55:36,581 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 377 [2021-07-09 19:55:36,856 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 443 [2021-07-09 19:55:38,095 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1314 DAG size of output: 1007 [2021-07-09 19:55:39,911 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1586 DAG size of output: 1355 [2021-07-09 19:55:44,677 WARN L205 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2064 [2021-07-09 19:55:51,227 WARN L205 SmtUtils]: Spent 6.54 s on a formula simplification. DAG size of input: 2989 DAG size of output: 2220 [2021-07-09 19:55:58,602 WARN L205 SmtUtils]: Spent 7.36 s on a formula simplification. DAG size of input: 3049 DAG size of output: 2305 [2021-07-09 19:55:59,259 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 573 [2021-07-09 19:55:59,944 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 296 [2021-07-09 19:56:00,115 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 358 [2021-07-09 19:56:00,819 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 451 [2021-07-09 19:56:01,735 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 215 [2021-07-09 19:56:01,885 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 254 [2021-07-09 19:56:02,105 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 348 [2021-07-09 19:56:02,411 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 399 [2021-07-09 19:56:02,780 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 482 DAG size of output: 425 [2021-07-09 19:56:03,241 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 485 [2021-07-09 19:56:03,789 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 521 [2021-07-09 19:56:05,060 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 328 [2021-07-09 19:56:05,304 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 369 [2021-07-09 19:56:05,622 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 394 [2021-07-09 19:56:06,083 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 469 DAG size of output: 433 [2021-07-09 19:56:06,600 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 517 [2021-07-09 19:56:07,223 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 580 [2021-07-09 19:56:08,529 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 978 DAG size of output: 863 [2021-07-09 19:56:09,401 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 202 [2021-07-09 19:56:09,569 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 256 [2021-07-09 19:56:09,816 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 384 [2021-07-09 19:56:10,132 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 442 [2021-07-09 19:56:10,334 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 292 [2021-07-09 19:56:10,958 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 328 [2021-07-09 19:56:11,181 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 391 [2021-07-09 19:56:11,458 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 450 [2021-07-09 19:56:12,127 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 639 [2021-07-09 19:56:13,183 WARN L205 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 715 [2021-07-09 19:56:15,568 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 1872 DAG size of output: 1482 [2021-07-09 19:56:18,745 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 2070 DAG size of output: 1568 [2021-07-09 19:56:18,882 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 361 [2021-07-09 19:56:19,465 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 344 [2021-07-09 19:56:19,652 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 367 [2021-07-09 19:56:20,227 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 246 [2021-07-09 19:56:20,580 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 486 [2021-07-09 19:56:21,576 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 243 [2021-07-09 19:56:21,722 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 266 [2021-07-09 19:56:21,909 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 324 [2021-07-09 19:56:22,191 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 457 [2021-07-09 19:56:22,585 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 599 [2021-07-09 19:56:23,419 WARN L205 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 817 [2021-07-09 19:56:24,604 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1006 DAG size of output: 867 [2021-07-09 19:56:25,683 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 318 [2021-07-09 19:56:25,854 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 388 [2021-07-09 19:56:26,085 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 406 [2021-07-09 19:56:26,359 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 422 [2021-07-09 19:56:26,721 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 470 [2021-07-09 19:56:28,457 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1433 DAG size of output: 1082 [2021-07-09 19:56:33,644 WARN L205 SmtUtils]: Spent 5.18 s on a formula simplification. DAG size of input: 2994 DAG size of output: 2129 [2021-07-09 19:56:39,528 WARN L205 SmtUtils]: Spent 5.87 s on a formula simplification. DAG size of input: 3038 DAG size of output: 2179 [2021-07-09 19:56:54,021 WARN L205 SmtUtils]: Spent 14.48 s on a formula simplification. DAG size of input: 5719 DAG size of output: 3928 [2021-07-09 19:57:21,948 WARN L205 SmtUtils]: Spent 27.90 s on a formula simplification. DAG size of input: 8989 DAG size of output: 5710 [2021-07-09 19:57:22,983 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 329 [2021-07-09 19:57:23,171 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 340 [2021-07-09 19:57:54,400 WARN L205 SmtUtils]: Spent 31.21 s on a formula simplification. DAG size of input: 9287 DAG size of output: 5929 [2021-07-09 19:58:31,273 WARN L205 SmtUtils]: Spent 36.83 s on a formula simplification. DAG size of input: 10982 DAG size of output: 7649 [2021-07-09 19:58:32,234 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 285 [2021-07-09 19:58:32,356 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 295 [2021-07-09 19:58:32,555 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 410 [2021-07-09 19:58:32,796 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 416 [2021-07-09 19:59:10,473 WARN L205 SmtUtils]: Spent 37.66 s on a formula simplification. DAG size of input: 11394 DAG size of output: 7943 [2021-07-09 19:59:48,845 WARN L205 SmtUtils]: Spent 38.32 s on a formula simplification. DAG size of input: 11649 DAG size of output: 8097 [2021-07-09 20:00:35,167 WARN L205 SmtUtils]: Spent 46.27 s on a formula simplification. DAG size of input: 12976 DAG size of output: 9218 [2021-07-09 20:00:38,702 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 1243 DAG size of output: 1636 [2021-07-09 20:00:38,862 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1238 [2021-07-09 20:00:40,353 WARN L205 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 1217 DAG size of output: 1216 [2021-07-09 20:00:43,921 WARN L205 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 1215 DAG size of output: 1779 [2021-07-09 20:00:44,068 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1093 DAG size of output: 1093 [2021-07-09 20:00:44,206 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 1052 [2021-07-09 20:00:45,282 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 686 DAG size of output: 991 [2021-07-09 20:00:45,972 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 739 [2021-07-09 20:00:46,902 WARN L205 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 766 [2021-07-09 20:00:47,664 WARN L205 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 791 [2021-07-09 20:00:47,999 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 441 [2021-07-09 20:00:48,746 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 258 [2021-07-09 20:00:48,915 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 291 [2021-07-09 20:00:49,302 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 348 [2021-07-09 20:00:49,653 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 453 [2021-07-09 20:00:50,081 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 477 [2021-07-09 20:00:51,681 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 417 [2021-07-09 20:00:52,010 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 435 [2021-07-09 20:00:52,837 WARN L205 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 758 [2021-07-09 20:00:53,878 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1152 DAG size of output: 843 [2021-07-09 20:00:55,306 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1015 [2021-07-09 20:00:56,205 WARN L205 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 765 [2021-07-09 20:00:57,284 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 675 DAG size of output: 790 [2021-07-09 20:00:57,577 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 428 [2021-07-09 20:00:58,252 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 281 [2021-07-09 20:00:58,467 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 391 [2021-07-09 20:00:58,813 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 464 [2021-07-09 20:00:59,059 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 267 [2021-07-09 20:00:59,694 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2021-07-09 20:00:59,863 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 259 [2021-07-09 20:01:00,669 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 265 [2021-07-09 20:01:00,848 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 290 [2021-07-09 20:01:01,254 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 384 [2021-07-09 20:01:02,203 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 261 [2021-07-09 20:01:02,721 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 319 [2021-07-09 20:01:03,014 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 344 [2021-07-09 20:01:03,837 WARN L205 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 516 [2021-07-09 20:01:04,863 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 592 DAG size of output: 578 [2021-07-09 20:01:06,171 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 819 DAG size of output: 697 [2021-07-09 20:01:07,900 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1184 DAG size of output: 905 [2021-07-09 20:01:10,108 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 1312 DAG size of output: 996 [2021-07-09 20:01:12,844 WARN L205 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 1416 DAG size of output: 1170 [2021-07-09 20:01:17,408 WARN L205 SmtUtils]: Spent 4.56 s on a formula simplification. DAG size of input: 1833 DAG size of output: 1517 [2021-07-09 20:01:23,647 WARN L205 SmtUtils]: Spent 6.23 s on a formula simplification. DAG size of input: 2174 DAG size of output: 1614 [2021-07-09 20:01:24,049 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 546 [2021-07-09 20:01:24,248 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 391 [2021-07-09 20:01:24,461 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 417 [2021-07-09 20:01:24,808 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 455 [2021-07-09 20:01:26,367 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 216 [2021-07-09 20:01:26,539 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 246 [2021-07-09 20:01:26,778 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 330 [2021-07-09 20:01:27,162 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 454 [2021-07-09 20:01:27,702 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 836 DAG size of output: 572 [2021-07-09 20:01:27,977 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 323 [2021-07-09 20:01:29,184 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 162 [2021-07-09 20:01:29,347 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 220 [2021-07-09 20:01:29,552 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 247 [2021-07-09 20:01:29,840 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 336 [2021-07-09 20:01:30,217 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 404 [2021-07-09 20:01:30,783 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 290 [2021-07-09 20:01:31,361 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 847 DAG size of output: 578 [2021-07-09 20:01:32,592 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 933 DAG size of output: 641 [2021-07-09 20:01:34,043 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 960 DAG size of output: 668 [2021-07-09 20:01:35,967 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1138 DAG size of output: 701 [2021-07-09 20:01:36,199 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 487 [2021-07-09 20:01:36,453 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-09 20:01:36,639 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-09 20:01:36,818 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 362 [2021-07-09 20:01:37,960 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 219 [2021-07-09 20:01:38,170 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 243 [2021-07-09 20:01:38,431 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 341 [2021-07-09 20:01:38,787 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 403 [2021-07-09 20:01:39,288 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 476 [2021-07-09 20:01:39,469 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-09 20:01:39,651 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-09 20:01:40,787 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 313 [2021-07-09 20:01:40,959 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 333 [2021-07-09 20:01:41,219 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 401 [2021-07-09 20:01:41,602 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 471 [2021-07-09 20:01:42,577 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 837 DAG size of output: 632 [2021-07-09 20:01:43,888 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1009 DAG size of output: 667 [2021-07-09 20:01:47,193 WARN L205 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 1961 DAG size of output: 1076 [2021-07-09 20:01:56,811 WARN L205 SmtUtils]: Spent 9.61 s on a formula simplification. DAG size of input: 3390 DAG size of output: 2173 [2021-07-09 20:02:08,015 WARN L205 SmtUtils]: Spent 10.83 s on a formula simplification. DAG size of input: 3507 DAG size of output: 2263 [2021-07-09 20:02:20,935 WARN L205 SmtUtils]: Spent 12.90 s on a formula simplification. DAG size of input: 4235 DAG size of output: 2787 [2021-07-09 20:02:34,055 WARN L205 SmtUtils]: Spent 13.10 s on a formula simplification. DAG size of input: 4456 DAG size of output: 2926 [2021-07-09 20:02:47,294 WARN L205 SmtUtils]: Spent 13.22 s on a formula simplification. DAG size of input: 4635 DAG size of output: 3051 [2021-07-09 20:03:02,244 WARN L205 SmtUtils]: Spent 14.93 s on a formula simplification. DAG size of input: 5120 DAG size of output: 3306 [2021-07-09 20:04:05,294 WARN L205 SmtUtils]: Spent 1.05 m on a formula simplification. DAG size of input: 16679 DAG size of output: 11341 [2021-07-09 20:05:14,479 WARN L205 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 [2021-07-09 20:06:24,006 WARN L205 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown