/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 08:35:06,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 08:35:06,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 08:35:06,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 08:35:06,681 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-Persistent-NoLbe.epf [2021-07-14 08:35:06,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 08:35:06,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 08:35:06,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 08:35:06,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 08:35:06,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 08:35:06,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 08:35:06,719 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 08:35:06,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 08:35:06,720 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 08:35:06,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 08:35:06,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 08:35:06,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 08:35:06,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 08:35:06,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 08:35:06,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 08:35:06,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 08:35:06,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 08:35:06,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 08:35:06,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 08:35:06,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 08:35:06,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 08:35:06,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 08:35:06,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 08:35:06,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 08:35:06,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 08:35:06,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 08:35:06,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 08:35:06,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 08:35:06,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 08:35:06,724 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 08:35:06,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 08:35:06,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 08:35:06,725 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-07-14 08:35:06,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 08:35:07,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 08:35:07,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 08:35:07,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 08:35:07,057 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 08:35:07,058 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 08:35:07,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl [2021-07-14 08:35:07,059 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl' [2021-07-14 08:35:07,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 08:35:07,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 08:35:07,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 08:35:07,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 08:35:07,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 08:35:07,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 08:35:07,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 08:35:07,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 08:35:07,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 08:35:07,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... [2021-07-14 08:35:07,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 08:35:07,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 08:35:07,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 08:35:07,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 08:35:07,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 08:35:07,196 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 08:35:07,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 08:35:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 08:35:07,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 08:35:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 08:35:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 08:35:07,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 08:35:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 08:35:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 08:35:07,198 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 08:35:07,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 08:35:07,591 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-14 08:35:07,591 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 08:35:07,593 INFO L202 PluginConnector]: Adding new model unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:35:07 BoogieIcfgContainer [2021-07-14 08:35:07,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 08:35:07,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 08:35:07,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 08:35:07,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 08:35:07,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:35:07" (1/2) ... [2021-07-14 08:35:07,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6116d1fb and model type unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 08:35:07, skipping insertion in model container [2021-07-14 08:35:07,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:35:07" (2/2) ... [2021-07-14 08:35:07,599 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.bpl [2021-07-14 08:35:07,607 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 08:35:07,607 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 08:35:07,608 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 08:35:07,608 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 08:35:07,657 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 08:35:07,683 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 08:35:07,750 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 08:35:07,751 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 08:35:07,751 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 08:35:07,751 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 08:35:07,751 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 08:35:07,752 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 08:35:07,752 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 08:35:07,752 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 08:35:07,811 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:07,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:07,817 INFO L82 PathProgramCache]: Analyzing trace with hash -357328619, now seen corresponding path program 1 times [2021-07-14 08:35:07,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:07,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156498164] [2021-07-14 08:35:07,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:08,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:08,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156498164] [2021-07-14 08:35:08,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156498164] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 08:35:08,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 08:35:08,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 08:35:08,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145608745] [2021-07-14 08:35:08,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 08:35:08,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:08,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 08:35:08,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-14 08:35:08,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:08,034 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:08,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:08,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:08,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:08,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 08:35:08,069 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:08,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:08,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1018542455, now seen corresponding path program 1 times [2021-07-14 08:35:08,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:08,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845037766] [2021-07-14 08:35:08,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:08,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:08,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:08,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845037766] [2021-07-14 08:35:08,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845037766] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:08,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744186486] [2021-07-14 08:35:08,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:08,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 08:35:08,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:08,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-14 08:35:08,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:08,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:08,445 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:08,446 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-07-14 08:35:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:08,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744186486] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:08,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:08,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 08:35:08,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422551553] [2021-07-14 08:35:08,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 08:35:08,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:08,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 08:35:08,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-07-14 08:35:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:08,472 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:08,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:08,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:08,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:08,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:08,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:08,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:08,769 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:08,770 INFO L82 PathProgramCache]: Analyzing trace with hash -41334891, now seen corresponding path program 2 times [2021-07-14 08:35:08,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:08,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881854454] [2021-07-14 08:35:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:08,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:08,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881854454] [2021-07-14 08:35:08,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881854454] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:08,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541535877] [2021-07-14 08:35:08,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:08,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 08:35:08,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:08,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 08:35:08,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:09,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:09,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-07-14 08:35:09,078 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:09,080 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:09,081 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:09,081 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-07-14 08:35:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:09,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541535877] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:09,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:09,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 08:35:09,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273538087] [2021-07-14 08:35:09,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 08:35:09,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:09,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 08:35:09,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-07-14 08:35:09,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:09,092 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:09,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:09,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:09,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:09,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:09,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:09,465 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:09,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:09,466 INFO L82 PathProgramCache]: Analyzing trace with hash 187328521, now seen corresponding path program 3 times [2021-07-14 08:35:09,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:09,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735469004] [2021-07-14 08:35:09,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:09,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:09,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735469004] [2021-07-14 08:35:09,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735469004] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:09,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308379245] [2021-07-14 08:35:09,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:09,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 08:35:09,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:09,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 08:35:09,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:09,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308379245] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:09,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:09,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 08:35:09,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600355627] [2021-07-14 08:35:09,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 08:35:09,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:09,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 08:35:09,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-14 08:35:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:09,638 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:09,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:09,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:09,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:09,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:09,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:09,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:09,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:09,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:09,915 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:09,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:09,915 INFO L82 PathProgramCache]: Analyzing trace with hash -2091189898, now seen corresponding path program 1 times [2021-07-14 08:35:09,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:09,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138915212] [2021-07-14 08:35:09,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:10,031 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:10,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:10,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138915212] [2021-07-14 08:35:10,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138915212] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:10,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756798994] [2021-07-14 08:35:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:10,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-14 08:35:10,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:10,359 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:10,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-07-14 08:35:10,389 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:10,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:10,391 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:10,391 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-07-14 08:35:10,404 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:10,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756798994] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:10,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:10,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-07-14 08:35:10,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950080595] [2021-07-14 08:35:10,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 08:35:10,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:10,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 08:35:10,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-07-14 08:35:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:10,408 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:10,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:10,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:10,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:10,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:10,811 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1388983062, now seen corresponding path program 2 times [2021-07-14 08:35:10,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:10,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988353419] [2021-07-14 08:35:10,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:10,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:10,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988353419] [2021-07-14 08:35:10,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988353419] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:10,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988342771] [2021-07-14 08:35:10,928 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:10,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 08:35:10,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:10,960 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 08:35:10,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:11,153 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:11,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-07-14 08:35:11,210 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:11,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:11,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:11,212 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-07-14 08:35:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:11,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988342771] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:11,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:11,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-07-14 08:35:11,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767436105] [2021-07-14 08:35:11,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 08:35:11,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:11,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 08:35:11,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-14 08:35:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:11,221 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:11,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:11,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:11,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:11,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:11,617 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:11,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:11,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1095407626, now seen corresponding path program 3 times [2021-07-14 08:35:11,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:11,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374002117] [2021-07-14 08:35:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:11,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:11,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374002117] [2021-07-14 08:35:11,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374002117] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:11,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450565884] [2021-07-14 08:35:11,730 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:11,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 08:35:11,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:11,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-14 08:35:11,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:11,997 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:11,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 27 treesize of output 99 [2021-07-14 08:35:12,134 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:12,136 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:12,136 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:12,137 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-07-14 08:35:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:12,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450565884] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:12,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:12,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-07-14 08:35:12,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237870218] [2021-07-14 08:35:12,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 08:35:12,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:12,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 08:35:12,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-14 08:35:12,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:12,153 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:12,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:12,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:12,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:12,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:12,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:12,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:12,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-07-14 08:35:12,562 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:12,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:12,562 INFO L82 PathProgramCache]: Analyzing trace with hash -584503702, now seen corresponding path program 4 times [2021-07-14 08:35:12,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:12,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502857269] [2021-07-14 08:35:12,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:12,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:12,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502857269] [2021-07-14 08:35:12,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502857269] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:12,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52640267] [2021-07-14 08:35:12,640 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:12,689 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 08:35:12,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:12,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 08:35:12,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:12,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52640267] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:12,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:12,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-07-14 08:35:12,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636751355] [2021-07-14 08:35:12,739 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 08:35:12,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:12,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 08:35:12,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-07-14 08:35:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:12,740 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:12,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:12,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:12,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:12,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:12,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:12,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:12,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:13,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-07-14 08:35:13,045 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:13,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash -248185035, now seen corresponding path program 5 times [2021-07-14 08:35:13,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:13,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024692144] [2021-07-14 08:35:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:13,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:13,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024692144] [2021-07-14 08:35:13,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024692144] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:13,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057377838] [2021-07-14 08:35:13,206 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:13,239 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 08:35:13,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:13,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-14 08:35:13,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:13,607 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:13,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-07-14 08:35:14,052 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:14,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:14,054 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:14,054 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-07-14 08:35:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:14,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057377838] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:14,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:14,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-07-14 08:35:14,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099465207] [2021-07-14 08:35:14,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-14 08:35:14,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:14,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-14 08:35:14,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-14 08:35:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:14,065 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:14,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:14,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:14,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:14,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:14,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:14,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:14,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:14,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:14,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:14,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:14,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-07-14 08:35:14,555 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:14,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:14,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1104214185, now seen corresponding path program 6 times [2021-07-14 08:35:14,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:14,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420526791] [2021-07-14 08:35:14,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:14,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:14,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420526791] [2021-07-14 08:35:14,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420526791] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:14,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803962751] [2021-07-14 08:35:14,744 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:14,779 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 08:35:14,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:14,780 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-14 08:35:14,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:15,150 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:15,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 35 treesize of output 193 [2021-07-14 08:35:15,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:15,975 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:15,975 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:15,975 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-07-14 08:35:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:15,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803962751] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:15,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:15,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 08:35:15,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180173446] [2021-07-14 08:35:15,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 08:35:15,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:15,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 08:35:15,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-07-14 08:35:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:15,987 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:15,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:15,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:15,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:15,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:16,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:16,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:16,520 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:16,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:16,520 INFO L82 PathProgramCache]: Analyzing trace with hash 78917045, now seen corresponding path program 7 times [2021-07-14 08:35:16,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:16,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924570413] [2021-07-14 08:35:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:16,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:16,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924570413] [2021-07-14 08:35:16,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924570413] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:16,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931360265] [2021-07-14 08:35:16,674 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:16,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 08:35:16,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:17,139 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 08:35:17,140 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:17,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-07-14 08:35:17,792 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 191 [2021-07-14 08:35:17,894 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 200 [2021-07-14 08:35:18,977 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 206 [2021-07-14 08:35:19,583 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:19,584 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:19,585 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:19,585 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-14 08:35:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:19,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931360265] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:19,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:19,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 08:35:19,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594911107] [2021-07-14 08:35:19,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 08:35:19,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:19,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 08:35:19,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-07-14 08:35:19,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:19,596 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:19,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.4) internal successors, (35), 24 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:19,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:19,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:19,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:19,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:19,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:19,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:19,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:19,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:19,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:19,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:19,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 08:35:20,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable198 [2021-07-14 08:35:20,196 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:20,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1640523223, now seen corresponding path program 8 times [2021-07-14 08:35:20,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:20,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108283881] [2021-07-14 08:35:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:20,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:20,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108283881] [2021-07-14 08:35:20,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108283881] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:20,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450925492] [2021-07-14 08:35:20,334 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:20,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 08:35:20,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:20,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 08:35:20,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:20,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450925492] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:20,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:20,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-14 08:35:20,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417471227] [2021-07-14 08:35:20,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 08:35:20,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:20,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 08:35:20,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-14 08:35:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:20,439 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:20,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:20,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:20,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:20,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 08:35:20,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 08:35:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:20,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable441 [2021-07-14 08:35:20,845 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:20,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:20,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1374948182, now seen corresponding path program 9 times [2021-07-14 08:35:20,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:20,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786656573] [2021-07-14 08:35:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:21,093 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:21,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:21,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786656573] [2021-07-14 08:35:21,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786656573] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:21,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115526481] [2021-07-14 08:35:21,094 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:21,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 08:35:21,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:21,135 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-14 08:35:21,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:21,719 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-14 08:35:21,720 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:21,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-07-14 08:35:22,803 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 213 [2021-07-14 08:35:23,012 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 269 [2021-07-14 08:35:23,934 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 192 [2021-07-14 08:35:24,061 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 214 [2021-07-14 08:35:24,224 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 247 [2021-07-14 08:35:24,539 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-07-14 08:35:24,836 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-07-14 08:35:25,172 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 387 [2021-07-14 08:35:25,663 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 257 [2021-07-14 08:35:26,345 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 203 [2021-07-14 08:35:26,517 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-07-14 08:35:26,649 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-07-14 08:35:26,852 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 282 [2021-07-14 08:35:27,624 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 210 [2021-07-14 08:35:28,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:28,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:28,085 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:28,085 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-07-14 08:35:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:28,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115526481] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:28,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:28,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-07-14 08:35:28,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166651471] [2021-07-14 08:35:28,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-14 08:35:28,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:28,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-14 08:35:28,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-07-14 08:35:28,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:28,093 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:28,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:28,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:28,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:28,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 08:35:28,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:28,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 08:35:28,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable442 [2021-07-14 08:35:28,824 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:35:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:35:28,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1739707702, now seen corresponding path program 10 times [2021-07-14 08:35:28,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:35:28,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039547244] [2021-07-14 08:35:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:35:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:35:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:29,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:35:29,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039547244] [2021-07-14 08:35:29,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039547244] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:29,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295650682] [2021-07-14 08:35:29,090 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:35:29,121 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 08:35:29,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:35:29,122 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-14 08:35:29,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:35:29,775 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 08:35:29,776 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:29,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-07-14 08:35:30,903 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 265 [2021-07-14 08:35:31,082 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-07-14 08:35:31,269 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-07-14 08:35:31,487 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 298 [2021-07-14 08:35:31,889 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 419 [2021-07-14 08:35:32,103 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 367 [2021-07-14 08:35:32,378 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 330 [2021-07-14 08:35:32,576 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 298 [2021-07-14 08:35:32,687 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 235 [2021-07-14 08:35:33,064 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 261 [2021-07-14 08:35:33,173 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 218 [2021-07-14 08:35:33,890 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 358 [2021-07-14 08:35:34,137 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 329 [2021-07-14 08:35:34,255 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 245 [2021-07-14 08:35:35,256 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 231 [2021-07-14 08:35:35,480 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 356 [2021-07-14 08:35:35,957 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 494 [2021-07-14 08:35:36,161 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 304 [2021-07-14 08:35:37,119 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 239 [2021-07-14 08:35:37,776 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 245 [2021-07-14 08:35:38,351 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 219 [2021-07-14 08:35:38,628 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 531 DAG size of output: 342 [2021-07-14 08:35:39,431 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-07-14 08:35:40,235 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-07-14 08:35:41,120 WARN L205 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 663 [2021-07-14 08:35:42,172 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 665 DAG size of output: 835 [2021-07-14 08:35:42,355 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 361 [2021-07-14 08:35:43,208 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 271 [2021-07-14 08:35:43,571 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 538 [2021-07-14 08:35:44,028 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 342 [2021-07-14 08:35:44,529 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-07-14 08:35:45,036 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-07-14 08:35:45,600 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 465 [2021-07-14 08:35:46,191 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 616 [2021-07-14 08:35:46,563 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 373 [2021-07-14 08:35:46,777 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 375 [2021-07-14 08:35:46,990 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 343 [2021-07-14 08:35:47,886 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 277 [2021-07-14 08:35:48,355 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 239 [2021-07-14 08:35:48,569 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 380 [2021-07-14 08:35:48,862 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 437 [2021-07-14 08:35:49,723 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 197 [2021-07-14 08:35:50,237 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 899 DAG size of output: 562 [2021-07-14 08:35:50,773 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 436 [2021-07-14 08:35:51,876 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 254 [2021-07-14 08:35:52,822 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 422 [2021-07-14 08:35:53,967 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 819 DAG size of output: 545 [2021-07-14 08:35:55,052 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-07-14 08:35:56,140 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-07-14 08:35:57,319 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1554 DAG size of output: 954 [2021-07-14 08:35:57,487 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 611 [2021-07-14 08:35:57,841 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 447 [2021-07-14 08:35:58,543 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 294 [2021-07-14 08:35:58,727 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-07-14 08:35:58,895 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-07-14 08:35:59,068 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 634 DAG size of output: 338 [2021-07-14 08:35:59,251 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 321 [2021-07-14 08:35:59,628 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 08:35:59,630 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:35:59,630 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 08:35:59,630 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-07-14 08:35:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:35:59,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295650682] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:35:59,636 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 08:35:59,636 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-07-14 08:35:59,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858943242] [2021-07-14 08:35:59,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 08:35:59,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 08:35:59,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 08:35:59,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=976, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 08:35:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:35:59,638 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 08:35:59,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 08:35:59,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:35:59,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 08:35:59,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 08:36:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 08:36:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 08:36:00,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable903,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:36:00,352 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 08:36:00,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 08:36:00,353 INFO L82 PathProgramCache]: Analyzing trace with hash 490207702, now seen corresponding path program 11 times [2021-07-14 08:36:00,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 08:36:00,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608126811] [2021-07-14 08:36:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 08:36:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 08:36:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 08:36:00,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 08:36:00,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608126811] [2021-07-14 08:36:00,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608126811] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 08:36:00,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367446028] [2021-07-14 08:36:00,563 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 08:36:00,597 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-14 08:36:00,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 08:36:00,598 WARN L261 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 52 conjunts are in the unsatisfiable core [2021-07-14 08:36:00,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 08:36:01,346 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-07-14 08:36:01,346 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 08:36:01,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 51 treesize of output 477 [2021-07-14 08:36:02,746 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 351 [2021-07-14 08:36:02,912 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 372 [2021-07-14 08:36:03,136 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 408 [2021-07-14 08:36:04,531 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 389 [2021-07-14 08:36:04,738 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 591 DAG size of output: 409 [2021-07-14 08:36:04,980 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 445 [2021-07-14 08:36:05,560 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 727 [2021-07-14 08:36:06,133 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 728 [2021-07-14 08:36:06,797 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 753 [2021-07-14 08:36:07,582 WARN L205 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 775 [2021-07-14 08:36:08,485 WARN L205 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-07-14 08:36:09,392 WARN L205 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-07-14 08:36:10,489 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1192 DAG size of output: 813 [2021-07-14 08:36:12,849 WARN L205 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 815 DAG size of output: 982 [2021-07-14 08:36:14,592 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 786 DAG size of output: 884 [2021-07-14 08:36:15,645 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 765 DAG size of output: 798 [2021-07-14 08:36:17,251 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 754 DAG size of output: 1042 [2021-07-14 08:36:18,092 WARN L205 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 844 [2021-07-14 08:36:18,437 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 317 [2021-07-14 08:36:19,386 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 179 [2021-07-14 08:36:19,502 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 256 [2021-07-14 08:36:19,653 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-07-14 08:36:20,709 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 230 [2021-07-14 08:36:20,900 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 252 [2021-07-14 08:36:21,108 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 259 [2021-07-14 08:36:21,965 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 199 [2021-07-14 08:36:22,303 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 331 [2021-07-14 08:36:22,716 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 350 [2021-07-14 08:36:23,879 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 213 [2021-07-14 08:36:24,063 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 217 [2021-07-14 08:36:24,606 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 246 [2021-07-14 08:36:25,107 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 763 DAG size of output: 331 [2021-07-14 08:36:25,288 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 262 [2021-07-14 08:36:25,510 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 324 [2021-07-14 08:36:25,674 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 244 [2021-07-14 08:36:26,306 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 257 [2021-07-14 08:36:26,599 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 218 [2021-07-14 08:36:26,725 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 210 [2021-07-14 08:36:26,894 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 228 [2021-07-14 08:36:27,060 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 241 [2021-07-14 08:36:27,660 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 210 [2021-07-14 08:36:28,354 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 238 [2021-07-14 08:36:28,525 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 282 [2021-07-14 08:36:28,756 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 300 [2021-07-14 08:36:29,095 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 296 [2021-07-14 08:36:30,470 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 216 [2021-07-14 08:36:30,631 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 235 [2021-07-14 08:36:31,117 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 834 DAG size of output: 313 [2021-07-14 08:36:32,202 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1222 DAG size of output: 455 [2021-07-14 08:36:33,736 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1424 DAG size of output: 577 [2021-07-14 08:36:33,905 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 277 [2021-07-14 08:36:34,121 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 283 [2021-07-14 08:36:34,271 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 273 [2021-07-14 08:36:35,114 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 239 [2021-07-14 08:36:35,284 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 285 [2021-07-14 08:36:35,646 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 219 [2021-07-14 08:36:36,616 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 247 [2021-07-14 08:36:36,858 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 311 [2021-07-14 08:36:37,930 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 186 [2021-07-14 08:36:38,138 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 201 [2021-07-14 08:36:38,637 WARN L205 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 400 [2021-07-14 08:36:39,277 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 483 [2021-07-14 08:36:40,042 WARN L205 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 720 DAG size of output: 507 [2021-07-14 08:36:41,520 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 251 [2021-07-14 08:36:41,679 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 272 [2021-07-14 08:36:41,923 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 285 [2021-07-14 08:36:42,205 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 288 [2021-07-14 08:36:42,942 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 226 [2021-07-14 08:36:43,407 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 208 [2021-07-14 08:36:43,652 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 282 [2021-07-14 08:36:44,195 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 216 [2021-07-14 08:36:44,557 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 311 [2021-07-14 08:36:44,934 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 354 [2021-07-14 08:36:45,978 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 217 [2021-07-14 08:36:46,146 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 217 [2021-07-14 08:36:46,805 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 451 [2021-07-14 08:36:47,562 WARN L205 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 723 DAG size of output: 463 [2021-07-14 08:36:48,955 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1029 DAG size of output: 672 [2021-07-14 08:36:51,125 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 1517 DAG size of output: 968 [2021-07-14 08:36:52,120 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 286 [2021-07-14 08:36:52,289 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 287 [2021-07-14 08:36:52,951 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 312 [2021-07-14 08:36:53,679 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 325 [2021-07-14 08:36:54,073 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 328 [2021-07-14 08:36:54,216 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-07-14 08:36:55,040 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 212 [2021-07-14 08:36:55,230 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 288 [2021-07-14 08:36:56,084 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 171 [2021-07-14 08:36:56,291 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2021-07-14 08:36:56,717 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 373 [2021-07-14 08:36:57,758 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 516 DAG size of output: 452 [2021-07-14 08:36:58,354 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 211 [2021-07-14 08:36:58,829 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 235 [2021-07-14 08:36:59,084 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 297 [2021-07-14 08:36:59,633 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 227 [2021-07-14 08:37:00,076 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 393 [2021-07-14 08:37:00,532 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 397 [2021-07-14 08:37:01,447 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2021-07-14 08:37:01,815 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 264 [2021-07-14 08:37:02,672 WARN L205 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 541 [2021-07-14 08:37:03,787 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 680 DAG size of output: 566 [2021-07-14 08:37:05,358 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1012 DAG size of output: 839 [2021-07-14 08:37:07,802 WARN L205 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 1410 DAG size of output: 1099 [2021-07-14 08:37:12,889 WARN L205 SmtUtils]: Spent 5.08 s on a formula simplification. DAG size of input: 2226 DAG size of output: 1704 [2021-07-14 08:37:19,762 WARN L205 SmtUtils]: Spent 6.86 s on a formula simplification. DAG size of input: 3213 DAG size of output: 1793 [2021-07-14 08:37:28,325 WARN L205 SmtUtils]: Spent 8.55 s on a formula simplification. DAG size of input: 3741 DAG size of output: 2301 [2021-07-14 08:37:38,300 WARN L205 SmtUtils]: Spent 9.96 s on a formula simplification. DAG size of input: 4093 DAG size of output: 2511 [2021-07-14 08:37:39,626 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 739 DAG size of output: 1024 [2021-07-14 08:37:40,489 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 826 [2021-07-14 08:37:40,659 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 281 [2021-07-14 08:37:40,901 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 294 [2021-07-14 08:37:41,004 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 253 [2021-07-14 08:37:42,163 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 243 [2021-07-14 08:37:42,664 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 284 [2021-07-14 08:37:43,321 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-07-14 08:37:43,451 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-07-14 08:37:43,939 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 212 [2021-07-14 08:37:44,395 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 243 [2021-07-14 08:37:44,654 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-07-14 08:37:44,903 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-07-14 08:37:45,357 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 428 [2021-07-14 08:37:46,133 WARN L205 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 566 [2021-07-14 08:37:46,865 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 156 [2021-07-14 08:37:47,056 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2021-07-14 08:37:47,959 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 239 [2021-07-14 08:37:48,203 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 291 [2021-07-14 08:37:48,668 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 392 [2021-07-14 08:37:50,000 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 859 DAG size of output: 794 [2021-07-14 08:37:51,576 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1020 DAG size of output: 881 [2021-07-14 08:37:51,863 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 235 [2021-07-14 08:37:52,022 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 297 [2021-07-14 08:37:52,153 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 236 [2021-07-14 08:37:52,384 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 244 [2021-07-14 08:37:53,058 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 207 [2021-07-14 08:37:53,345 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 334 [2021-07-14 08:37:53,842 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 209 [2021-07-14 08:37:53,960 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 226 [2021-07-14 08:37:54,517 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 310 [2021-07-14 08:37:55,129 WARN L205 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 478 DAG size of output: 446 [2021-07-14 08:37:55,312 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 195 [2021-07-14 08:37:56,074 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 256 [2021-07-14 08:37:56,462 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 308 [2021-07-14 08:37:57,293 WARN L205 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 508 [2021-07-14 08:37:57,965 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 156 [2021-07-14 08:37:58,118 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 173 [2021-07-14 08:37:58,376 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 215 [2021-07-14 08:37:58,940 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 205 [2021-07-14 08:37:59,650 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 262 [2021-07-14 08:38:00,213 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 284 [2021-07-14 08:38:00,581 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 348 [2021-07-14 08:38:01,871 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 994 DAG size of output: 708 [2021-07-14 08:38:03,430 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1148 DAG size of output: 774 [2021-07-14 08:38:06,849 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 1747 DAG size of output: 1412 [2021-07-14 08:38:06,965 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 253 [2021-07-14 08:38:07,127 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 259 [2021-07-14 08:38:07,240 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 256 [2021-07-14 08:38:08,130 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 190 [2021-07-14 08:38:09,020 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 203 [2021-07-14 08:38:09,226 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 249 [2021-07-14 08:38:09,428 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 321 [2021-07-14 08:38:09,629 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 260 [2021-07-14 08:38:09,946 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 192 [2021-07-14 08:38:10,315 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 249 [2021-07-14 08:38:10,498 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 271 [2021-07-14 08:38:10,774 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 251 [2021-07-14 08:38:11,239 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 251 [2021-07-14 08:38:11,435 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 274 [2021-07-14 08:38:11,685 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 321 [2021-07-14 08:38:11,823 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 238 [2021-07-14 08:38:12,474 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 253 [2021-07-14 08:38:12,858 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 213 [2021-07-14 08:38:13,044 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 242 [2021-07-14 08:38:13,321 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 265 [2021-07-14 08:38:13,740 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 330 [2021-07-14 08:38:14,362 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 911 DAG size of output: 360 [2021-07-14 08:38:14,500 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 245 [2021-07-14 08:38:15,456 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 225 [2021-07-14 08:38:16,437 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 261 [2021-07-14 08:38:16,660 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-07-14 08:38:16,875 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-07-14 08:38:17,233 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 504 DAG size of output: 357 [2021-07-14 08:38:17,744 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 385 [2021-07-14 08:38:18,743 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 218 [2021-07-14 08:38:18,991 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 242 [2021-07-14 08:38:19,490 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 743 DAG size of output: 350 [2021-07-14 08:38:20,776 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1315 DAG size of output: 518 [2021-07-14 08:38:26,185 WARN L205 SmtUtils]: Spent 5.40 s on a formula simplification. DAG size of input: 2765 DAG size of output: 1722 [2021-07-14 08:38:32,208 WARN L205 SmtUtils]: Spent 6.01 s on a formula simplification. DAG size of input: 2888 DAG size of output: 1777 [2021-07-14 08:38:39,751 WARN L205 SmtUtils]: Spent 7.53 s on a formula simplification. DAG size of input: 3423 DAG size of output: 2286 [2021-07-14 08:38:48,800 WARN L205 SmtUtils]: Spent 9.03 s on a formula simplification. DAG size of input: 3768 DAG size of output: 2589 [2021-07-14 08:38:49,808 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 242 [2021-07-14 08:38:50,709 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 227 [2021-07-14 08:38:50,875 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 257 [2021-07-14 08:38:51,948 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 255 [2021-07-14 08:38:52,105 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 268 [2021-07-14 08:38:52,296 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 266 [2021-07-14 08:38:52,592 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 348 [2021-07-14 08:38:53,088 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 228 [2021-07-14 08:38:53,497 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 411 [2021-07-14 08:38:54,037 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 475 [2021-07-14 08:38:54,796 WARN L205 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 486 [2021-07-14 08:38:55,673 WARN L205 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 626 DAG size of output: 495 [2021-07-14 08:38:57,283 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 223 [2021-07-14 08:38:57,418 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 237 [2021-07-14 08:38:57,568 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 235 [2021-07-14 08:38:57,804 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 303 [2021-07-14 08:38:58,548 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 446 DAG size of output: 350 [2021-07-14 08:38:59,346 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 194 [2021-07-14 08:38:59,746 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 386 [2021-07-14 08:39:00,315 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 399 [2021-07-14 08:39:01,941 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1065 DAG size of output: 745 [2021-07-14 08:39:03,680 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1077 DAG size of output: 744 [2021-07-14 08:39:05,660 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1098 DAG size of output: 750 [2021-07-14 08:39:18,172 WARN L205 SmtUtils]: Spent 12.50 s on a formula simplification. DAG size of input: 4707 DAG size of output: 3202 [2021-07-14 08:39:42,389 WARN L205 SmtUtils]: Spent 24.19 s on a formula simplification. DAG size of input: 6894 DAG size of output: 4324 [2021-07-14 08:40:09,798 WARN L205 SmtUtils]: Spent 27.37 s on a formula simplification. DAG size of input: 7322 DAG size of output: 4477 [2021-07-14 08:40:10,974 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 552 DAG size of output: 317 [2021-07-14 08:40:11,140 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 343 [2021-07-14 08:40:12,583 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 378 [2021-07-14 08:40:12,807 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 404 [2021-07-14 08:40:13,244 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 627 [2021-07-14 08:40:13,773 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 654 [2021-07-14 08:40:44,445 WARN L205 SmtUtils]: Spent 30.66 s on a formula simplification. DAG size of input: 8002 DAG size of output: 4954 [2021-07-14 08:41:19,537 WARN L205 SmtUtils]: Spent 35.05 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-07-14 08:41:54,707 WARN L205 SmtUtils]: Spent 35.13 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-07-14 08:42:33,811 WARN L205 SmtUtils]: Spent 39.08 s on a formula simplification. DAG size of input: 8440 DAG size of output: 5295 [2021-07-14 08:43:32,679 WARN L205 SmtUtils]: Spent 58.83 s on a formula simplification. DAG size of input: 5297 DAG size of output: 7538 [2021-07-14 08:44:31,492 WARN L205 SmtUtils]: Spent 58.77 s on a formula simplification. DAG size of input: 4323 DAG size of output: 6374 [2021-07-14 08:45:33,038 WARN L205 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 3823 DAG size of output: 4222 [2021-07-14 08:45:40,972 WARN L205 SmtUtils]: Spent 7.91 s on a formula simplification. DAG size of input: 1942 DAG size of output: 1778 [2021-07-14 08:45:54,704 WARN L205 SmtUtils]: Spent 13.72 s on a formula simplification. DAG size of input: 1680 DAG size of output: 1578 [2021-07-14 08:45:54,986 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 1450 [2021-07-14 08:46:04,070 WARN L205 SmtUtils]: Spent 9.08 s on a formula simplification. DAG size of input: 1347 DAG size of output: 1954 [2021-07-14 08:46:04,618 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 1150 DAG size of output: 1150 [2021-07-14 08:46:05,012 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 1034 [2021-07-14 08:46:10,008 WARN L205 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 981 DAG size of output: 1395 [2021-07-14 08:46:10,127 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 872 [2021-07-14 08:46:10,240 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 595 [2021-07-14 08:46:11,193 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 230 [2021-07-14 08:46:11,344 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 272 [2021-07-14 08:46:11,808 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 331 [2021-07-14 08:46:12,120 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 377 [2021-07-14 08:46:13,257 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 472 [2021-07-14 08:46:13,373 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 535 [2021-07-14 08:46:13,478 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 208 [2021-07-14 08:46:13,883 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 187 [2021-07-14 08:46:14,254 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 266 [2021-07-14 08:46:15,403 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 289 [2021-07-14 08:46:15,688 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 337 [2021-07-14 08:46:16,071 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 399 [2021-07-14 08:46:16,573 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 752 DAG size of output: 473 [2021-07-14 08:46:17,714 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 1245 DAG size of output: 754 [2021-07-14 08:46:17,941 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 778 [2021-07-14 08:46:18,046 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 509 DAG size of output: 509 [2021-07-14 08:46:19,244 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 244 [2021-07-14 08:46:19,420 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 279 [2021-07-14 08:46:19,951 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 355 [2021-07-14 08:46:20,322 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 427 [2021-07-14 08:46:20,430 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 556 [2021-07-14 08:46:22,120 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 216 [2021-07-14 08:46:22,596 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 294 [2021-07-14 08:46:22,885 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 361 [2021-07-14 08:46:23,292 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 710 DAG size of output: 434 [2021-07-14 08:46:24,202 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 614 [2021-07-14 08:46:26,509 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 1979 DAG size of output: 1146 [2021-07-14 08:46:29,291 WARN L205 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 2136 DAG size of output: 1241 [2021-07-14 08:46:32,558 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 2252 DAG size of output: 1326 [2021-07-14 08:46:38,211 WARN L205 SmtUtils]: Spent 5.64 s on a formula simplification. DAG size of input: 3080 DAG size of output: 1978 [2021-07-14 08:46:38,617 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 294 [2021-07-14 08:46:38,841 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 228 [2021-07-14 08:46:39,450 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 216 [2021-07-14 08:46:40,326 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 227 [2021-07-14 08:46:40,583 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 301 [2021-07-14 08:46:40,955 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 370 [2021-07-14 08:46:47,048 WARN L205 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 3478 DAG size of output: 2225 [2021-07-14 08:46:47,685 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 431 [2021-07-14 08:46:48,456 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 243 [2021-07-14 08:46:48,649 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 237 [2021-07-14 08:46:48,885 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 247 [2021-07-14 08:46:48,995 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 217 [2021-07-14 08:46:49,755 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2021-07-14 08:46:49,909 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 266 [2021-07-14 08:46:50,580 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 241 [2021-07-14 08:46:50,748 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 310 [2021-07-14 08:46:50,959 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 316 [2021-07-14 08:46:51,337 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 411 [2021-07-14 08:46:52,007 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 543 [2021-07-14 08:46:52,868 WARN L205 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 909 DAG size of output: 604 [2021-07-14 08:47:00,585 WARN L205 SmtUtils]: Spent 7.71 s on a formula simplification. DAG size of input: 4146 DAG size of output: 2641 [2021-07-14 08:47:09,508 WARN L205 SmtUtils]: Spent 8.90 s on a formula simplification. DAG size of input: 4264 DAG size of output: 2757 [2021-07-14 08:47:27,815 WARN L205 SmtUtils]: Spent 18.28 s on a formula simplification. DAG size of input: 6395 DAG size of output: 4339 [2021-07-14 08:47:54,467 WARN L205 SmtUtils]: Spent 26.61 s on a formula simplification. DAG size of input: 4239 DAG size of output: 3919 [2021-07-14 08:49:08,193 WARN L205 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 3721 DAG size of output: 4036 [2021-07-14 08:49:26,872 WARN L205 SmtUtils]: Spent 18.65 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1732 [2021-07-14 08:49:27,325 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 306 [2021-07-14 08:49:27,557 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 236 [2021-07-14 08:49:27,662 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 212 [2021-07-14 08:49:28,701 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 278 [2021-07-14 08:49:28,961 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 322 [2021-07-14 08:49:29,108 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 201 [2021-07-14 08:49:29,953 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 254 [2021-07-14 08:49:30,180 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 271 [2021-07-14 08:49:30,480 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 290 [2021-07-14 08:49:31,341 WARN L205 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 477 [2021-07-14 08:49:32,056 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 1605 DAG size of output: 1605 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown