/usr/bin/java -Xmx16000000000 -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-DelaySleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 20:44:45,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 20:44:45,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 20:44:45,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 20:44:45,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf [2021-06-06 20:44:45,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 20:44:45,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 20:44:45,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 20:44:45,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 20:44:45,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 20:44:45,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 20:44:45,348 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 20:44:45,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 20:44:45,348 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 20:44:45,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 20:44:45,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 20:44:45,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 20:44:45,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 20:44:45,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 20:44:45,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 20:44:45,351 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 20:44:45,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 20:44:45,351 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 20:44:45,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 20:44:45,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 20:44:45,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 20:44:45,595 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 20:44:45,597 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 20:44:45,597 INFO L432 ainManager$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 [2021-06-06 20:44:45,611 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl' [2021-06-06 20:44:45,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 20:44:45,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 20:44:45,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 20:44:45,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 20:44:45,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 20:44:45,650 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,656 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 20:44:45,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 20:44:45,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 20:44:45,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 20:44:45,667 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,668 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,669 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,669 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,672 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,675 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,676 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 06.06 08:44:45" (1/1) ... [2021-06-06 20:44:45,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 20:44:45,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 20:44:45,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 20:44:45,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 20:44:45,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 08:44:45" (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 [2021-06-06 20:44:45,729 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 20:44:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 20:44:45,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 20:44:45,729 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 20:44:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 20:44:45,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 20:44:45,730 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 20:44:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 20:44:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 20:44:45,731 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 20:44:45,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 20:44:45,944 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-06 20:44:45,944 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-06 20:44:45,945 INFO L202 PluginConnector]: Adding new model unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 08:44:45 BoogieIcfgContainer [2021-06-06 20:44:45,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 20:44:45,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 20:44:45,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 20:44:45,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 20:44:45,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 08:44:45" (1/2) ... [2021-06-06 20:44:45,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201ace01 and model type unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 08:44:45, skipping insertion in model container [2021-06-06 20:44:45,965 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 06.06 08:44:45" (2/2) ... [2021-06-06 20:44:45,966 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.bpl [2021-06-06 20:44:45,970 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 20:44:45,970 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 20:44:45,970 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 20:44:45,970 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 20:44:45,986 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 20:44:45,999 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 [2021-06-06 20:44:46,031 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 20:44:46,031 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 20:44:46,031 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 20:44:46,032 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 20:44:46,032 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 20:44:46,032 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 20:44:46,032 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 20:44:46,032 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 20:44:46,048 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:46,051 INFO L82 PathProgramCache]: Analyzing trace with hash -2049507901, now seen corresponding path program 1 times [2021-06-06 20:44:46,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:46,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436198431] [2021-06-06 20:44:46,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:46,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:46,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436198431] [2021-06-06 20:44:46,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436198431] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 20:44:46,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 20:44:46,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 20:44:46,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598192735] [2021-06-06 20:44:46,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-06 20:44:46,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:46,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-06 20:44:46,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-06 20:44:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:46,242 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:46,243 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) [2021-06-06 20:44:46,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:46,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:46,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 20:44:46,273 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:46,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:46,274 INFO L82 PathProgramCache]: Analyzing trace with hash -78407129, now seen corresponding path program 1 times [2021-06-06 20:44:46,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:46,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504800642] [2021-06-06 20:44:46,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:46,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:46,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504800642] [2021-06-06 20:44:46,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504800642] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:46,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686598436] [2021-06-06 20:44:46,339 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) [2021-06-06 20:44:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:46,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 20:44:46,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:46,531 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 [2021-06-06 20:44:46,534 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:46,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:46,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:46,538 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-06 20:44:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:46,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686598436] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:46,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:46,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-06-06 20:44:46,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576629777] [2021-06-06 20:44:46,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-06 20:44:46,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:46,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-06 20:44:46,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-06 20:44:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:46,555 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:46,555 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) [2021-06-06 20:44:46,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:46,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:46,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:46,842 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:46,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:46,842 INFO L82 PathProgramCache]: Analyzing trace with hash 896174659, now seen corresponding path program 2 times [2021-06-06 20:44:46,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:46,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433000412] [2021-06-06 20:44:46,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:46,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:46,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:46,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433000412] [2021-06-06 20:44:46,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433000412] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:46,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011892879] [2021-06-06 20:44:46,900 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 [2021-06-06 20:44:46,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 20:44:46,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:46,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 20:44:46,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:47,097 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:47,097 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 [2021-06-06 20:44:47,101 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:47,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:47,102 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:47,103 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-06-06 20:44:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:47,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011892879] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:47,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:47,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-06-06 20:44:47,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479566767] [2021-06-06 20:44:47,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-06 20:44:47,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:47,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-06 20:44:47,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-06 20:44:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:47,121 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:47,121 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) [2021-06-06 20:44:47,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:47,393 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:47,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:47,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1591796100, now seen corresponding path program 1 times [2021-06-06 20:44:47,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:47,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377966570] [2021-06-06 20:44:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:47,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:47,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377966570] [2021-06-06 20:44:47,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377966570] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:47,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288811669] [2021-06-06 20:44:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-06 20:44:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:47,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 20:44:47,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:47,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288811669] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:47,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:47,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-06 20:44:47,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728173286] [2021-06-06 20:44:47,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 20:44:47,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:47,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 20:44:47,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-06 20:44:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:47,493 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:47,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 20:44:47,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:47,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:47,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:47,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:47,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:47,756 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:47,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:47,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1043439015, now seen corresponding path program 3 times [2021-06-06 20:44:47,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:47,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949712308] [2021-06-06 20:44:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:47,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:47,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949712308] [2021-06-06 20:44:47,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949712308] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:47,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861959754] [2021-06-06 20:44:47,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:47,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 20:44:47,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:47,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 20:44:47,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:47,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861959754] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:47,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:47,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-06 20:44:47,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752983343] [2021-06-06 20:44:47,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 20:44:47,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:47,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 20:44:47,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-06 20:44:47,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:47,865 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:47,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 20:44:47,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:47,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:47,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:48,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:48,117 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:48,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:48,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1321568360, now seen corresponding path program 2 times [2021-06-06 20:44:48,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:48,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835767015] [2021-06-06 20:44:48,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:48,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:48,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835767015] [2021-06-06 20:44:48,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835767015] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:48,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326629162] [2021-06-06 20:44:48,176 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) [2021-06-06 20:44:48,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 20:44:48,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:48,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-06 20:44:48,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:48,334 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:48,335 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 [2021-06-06 20:44:48,344 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:48,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:48,345 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:48,345 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-06-06 20:44:48,351 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:48,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326629162] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:48,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:48,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-06-06 20:44:48,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31986942] [2021-06-06 20:44:48,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-06 20:44:48,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:48,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-06 20:44:48,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-06 20:44:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:48,353 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:48,353 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) [2021-06-06 20:44:48,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:48,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:48,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:48,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:48,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:48,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:48,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:48,708 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:48,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:48,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1534443012, now seen corresponding path program 3 times [2021-06-06 20:44:48,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:48,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090613833] [2021-06-06 20:44:48,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:48,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:48,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090613833] [2021-06-06 20:44:48,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090613833] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:48,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837944631] [2021-06-06 20:44:48,812 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 [2021-06-06 20:44:48,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 20:44:48,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:48,846 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-06 20:44:48,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:49,005 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:49,005 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 [2021-06-06 20:44:49,040 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:49,042 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:49,042 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:49,042 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-06-06 20:44:49,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:49,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837944631] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:49,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:49,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-06-06 20:44:49,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508488711] [2021-06-06 20:44:49,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 20:44:49,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:49,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 20:44:49,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-06-06 20:44:49,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:49,048 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:49,048 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) [2021-06-06 20:44:49,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:49,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:49,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:49,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:49,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:49,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:49,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:49,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:49,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-06 20:44:49,439 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:49,439 INFO L82 PathProgramCache]: Analyzing trace with hash 456377368, now seen corresponding path program 4 times [2021-06-06 20:44:49,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:49,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470990255] [2021-06-06 20:44:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:49,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:49,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470990255] [2021-06-06 20:44:49,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470990255] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:49,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205667804] [2021-06-06 20:44:49,516 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 [2021-06-06 20:44:49,542 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 20:44:49,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:49,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-06 20:44:49,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:49,717 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:49,717 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 [2021-06-06 20:44:49,813 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:49,815 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:49,815 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:49,815 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-06-06 20:44:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:49,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205667804] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:49,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:49,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-06-06 20:44:49,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749569824] [2021-06-06 20:44:49,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 20:44:49,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:49,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 20:44:49,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-06-06 20:44:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:49,822 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:49,822 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) [2021-06-06 20:44:49,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:49,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:49,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:49,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:49,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:49,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:49,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:49,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-06 20:44:50,217 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:50,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1954357063, now seen corresponding path program 5 times [2021-06-06 20:44:50,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:50,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319671991] [2021-06-06 20:44:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:50,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:50,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319671991] [2021-06-06 20:44:50,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319671991] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:50,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279439787] [2021-06-06 20:44:50,282 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 [2021-06-06 20:44:50,312 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-06 20:44:50,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:50,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-06 20:44:50,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:50,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279439787] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:50,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:50,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-06-06 20:44:50,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515503082] [2021-06-06 20:44:50,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 20:44:50,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:50,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 20:44:50,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-06-06 20:44:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:50,351 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:50,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 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) [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:50,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-06-06 20:44:50,697 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:50,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:50,697 INFO L82 PathProgramCache]: Analyzing trace with hash 2042267004, now seen corresponding path program 6 times [2021-06-06 20:44:50,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:50,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273329156] [2021-06-06 20:44:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:50,746 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:50,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:50,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273329156] [2021-06-06 20:44:50,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273329156] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:50,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622078766] [2021-06-06 20:44:50,747 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 [2021-06-06 20:44:50,772 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-06 20:44:50,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:50,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-06 20:44:50,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:50,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622078766] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:50,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:50,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-06-06 20:44:50,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64173100] [2021-06-06 20:44:50,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 20:44:50,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:50,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 20:44:50,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-06-06 20:44:50,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:50,817 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:50,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 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) [2021-06-06 20:44:50,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:50,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:50,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:50,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:50,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:50,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:51,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:51,109 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:51,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:51,109 INFO L82 PathProgramCache]: Analyzing trace with hash -422671773, now seen corresponding path program 7 times [2021-06-06 20:44:51,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:51,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001677374] [2021-06-06 20:44:51,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:51,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:51,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001677374] [2021-06-06 20:44:51,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001677374] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:51,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971424925] [2021-06-06 20:44:51,221 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 [2021-06-06 20:44:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:51,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-06 20:44:51,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:51,530 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:51,531 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 [2021-06-06 20:44:51,784 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:51,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:51,786 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:51,786 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-06-06 20:44:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:51,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971424925] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:51,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:51,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-06-06 20:44:51,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016831457] [2021-06-06 20:44:51,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-06 20:44:51,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:51,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-06 20:44:51,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-06 20:44:51,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:51,792 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:51,792 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) [2021-06-06 20:44:51,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:51,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:52,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:52,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-06-06 20:44:52,273 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:52,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:52,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1096121657, now seen corresponding path program 8 times [2021-06-06 20:44:52,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:52,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476297656] [2021-06-06 20:44:52,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:52,417 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:52,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:52,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476297656] [2021-06-06 20:44:52,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476297656] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:52,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554628456] [2021-06-06 20:44:52,417 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 [2021-06-06 20:44:52,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 20:44:52,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:52,450 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 20:44:52,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:52,789 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:52,789 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 [2021-06-06 20:44:53,284 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:53,286 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:53,286 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:53,286 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-06-06 20:44:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:53,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554628456] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:53,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:53,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-06 20:44:53,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342583582] [2021-06-06 20:44:53,293 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 20:44:53,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:53,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 20:44:53,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-06-06 20:44:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:53,294 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:53,294 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) [2021-06-06 20:44:53,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:53,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:53,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:53,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:53,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:53,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:53,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:53,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:53,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:53,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:53,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:53,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:53,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:53,773 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:53,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:53,773 INFO L82 PathProgramCache]: Analyzing trace with hash -498231581, now seen corresponding path program 9 times [2021-06-06 20:44:53,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:53,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443020091] [2021-06-06 20:44:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:53,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:53,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443020091] [2021-06-06 20:44:53,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443020091] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:53,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461514168] [2021-06-06 20:44:53,891 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 [2021-06-06 20:44:53,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 20:44:53,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:53,919 WARN L261 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-06 20:44:53,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:54,292 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:54,293 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 [2021-06-06 20:44:55,995 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:44:55,996 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:55,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:44:55,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-06-06 20:44:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:56,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461514168] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:56,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:56,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-06 20:44:56,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348805449] [2021-06-06 20:44:56,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 20:44:56,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:56,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 20:44:56,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-06-06 20:44:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:56,003 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:56,003 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) [2021-06-06 20:44:56,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:56,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:56,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:56,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:56,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:56,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:56,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:56,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:56,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-06-06 20:44:56,581 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:56,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:56,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1868716580, now seen corresponding path program 10 times [2021-06-06 20:44:56,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:56,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308075365] [2021-06-06 20:44:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:56,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:56,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308075365] [2021-06-06 20:44:56,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308075365] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:56,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851913200] [2021-06-06 20:44:56,653 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 [2021-06-06 20:44:56,679 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 20:44:56,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:56,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-06 20:44:56,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:56,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851913200] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:56,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:56,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-06-06 20:44:56,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71071045] [2021-06-06 20:44:56,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-06 20:44:56,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:56,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-06 20:44:56,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-06-06 20:44:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:56,716 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:56,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 20:44:56,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:56,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:56,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:56,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:56,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:56,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 20:44:57,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:57,116 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:57,117 INFO L82 PathProgramCache]: Analyzing trace with hash 856491591, now seen corresponding path program 11 times [2021-06-06 20:44:57,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:57,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931732127] [2021-06-06 20:44:57,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:57,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:57,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931732127] [2021-06-06 20:44:57,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931732127] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:57,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644221362] [2021-06-06 20:44:57,196 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 [2021-06-06 20:44:57,223 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 20:44:57,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:57,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-06 20:44:57,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:57,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644221362] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:57,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:44:57,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-06-06 20:44:57,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623075856] [2021-06-06 20:44:57,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-06 20:44:57,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:44:57,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-06 20:44:57,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-06 20:44:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:57,277 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:44:57,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 20:44:57,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:57,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:57,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:57,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 20:44:57,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:44:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:44:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 20:44:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 20:44:57,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-06-06 20:44:57,621 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:44:57,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:44:57,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1472996088, now seen corresponding path program 12 times [2021-06-06 20:44:57,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:44:57,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741500859] [2021-06-06 20:44:57,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:44:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:44:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:44:57,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:44:57,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741500859] [2021-06-06 20:44:57,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741500859] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:44:57,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660100294] [2021-06-06 20:44:57,794 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:44:57,821 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-06 20:44:57,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:44:57,822 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-06 20:44:57,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:44:58,355 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-06 20:44:58,355 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:44:58,355 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 [2021-06-06 20:44:59,427 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 269 [2021-06-06 20:45:00,197 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 214 [2021-06-06 20:45:00,339 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 247 [2021-06-06 20:45:00,620 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-06-06 20:45:00,901 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-06-06 20:45:01,220 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 387 [2021-06-06 20:45:01,647 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 257 [2021-06-06 20:45:02,398 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-06-06 20:45:02,522 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-06-06 20:45:02,708 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 282 [2021-06-06 20:45:03,720 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:45:03,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:45:03,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:45:03,721 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-06-06 20:45:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:45:03,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660100294] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:45:03,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:45:03,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-06-06 20:45:03,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052506020] [2021-06-06 20:45:03,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-06 20:45:03,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:45:03,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-06 20:45:03,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-06-06 20:45:03,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:45:03,728 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:45:03,728 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) [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 20:45:03,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 20:45:03,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 20:45:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 20:45:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 20:45:04,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:45:04,508 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:45:04,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:45:04,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1986873692, now seen corresponding path program 13 times [2021-06-06 20:45:04,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:45:04,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739157734] [2021-06-06 20:45:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:45:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:45:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:45:04,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:45:04,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739157734] [2021-06-06 20:45:04,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739157734] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:45:04,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253895368] [2021-06-06 20:45:04,741 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:45:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:45:04,767 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 64 conjunts are in the unsatisfiable core [2021-06-06 20:45:04,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:45:05,339 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-06-06 20:45:05,339 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:45:05,339 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 [2021-06-06 20:45:06,251 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 265 [2021-06-06 20:45:06,421 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-06-06 20:45:06,593 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-06-06 20:45:06,786 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 298 [2021-06-06 20:45:07,163 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 419 [2021-06-06 20:45:07,363 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 367 [2021-06-06 20:45:07,604 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 330 [2021-06-06 20:45:07,793 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 298 [2021-06-06 20:45:08,234 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 261 [2021-06-06 20:45:08,372 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 218 [2021-06-06 20:45:09,038 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 358 [2021-06-06 20:45:09,275 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 329 [2021-06-06 20:45:09,386 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 245 [2021-06-06 20:45:10,491 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 356 [2021-06-06 20:45:10,938 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 494 [2021-06-06 20:45:11,135 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 304 [2021-06-06 20:45:11,972 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 239 [2021-06-06 20:45:12,477 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 245 [2021-06-06 20:45:12,938 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 219 [2021-06-06 20:45:13,196 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 531 DAG size of output: 342 [2021-06-06 20:45:13,952 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-06-06 20:45:14,709 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-06-06 20:45:15,546 WARN L205 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 663 [2021-06-06 20:45:16,551 WARN L205 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 665 DAG size of output: 835 [2021-06-06 20:45:16,723 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 361 [2021-06-06 20:45:17,569 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 271 [2021-06-06 20:45:17,902 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 538 [2021-06-06 20:45:18,325 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 342 [2021-06-06 20:45:18,806 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-06-06 20:45:19,283 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-06-06 20:45:19,818 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 465 [2021-06-06 20:45:20,378 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 616 [2021-06-06 20:45:20,625 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 373 [2021-06-06 20:45:20,826 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 375 [2021-06-06 20:45:21,029 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 343 [2021-06-06 20:45:21,737 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 277 [2021-06-06 20:45:22,313 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 380 [2021-06-06 20:45:22,594 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 437 [2021-06-06 20:45:23,331 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 197 [2021-06-06 20:45:23,799 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 899 DAG size of output: 562 [2021-06-06 20:45:24,313 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 436 [2021-06-06 20:45:25,283 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 254 [2021-06-06 20:45:26,100 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 422 [2021-06-06 20:45:27,141 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 819 DAG size of output: 545 [2021-06-06 20:45:28,170 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-06-06 20:45:29,198 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-06-06 20:45:30,290 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1554 DAG size of output: 954 [2021-06-06 20:45:30,452 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 611 [2021-06-06 20:45:30,777 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 447 [2021-06-06 20:45:31,465 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 294 [2021-06-06 20:45:31,627 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-06-06 20:45:31,793 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-06-06 20:45:31,960 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 634 DAG size of output: 338 [2021-06-06 20:45:32,132 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 321 [2021-06-06 20:45:32,448 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 20:45:32,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:45:32,450 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 20:45:32,450 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-06-06 20:45:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:45:32,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253895368] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:45:32,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 20:45:32,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-06 20:45:32,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387123796] [2021-06-06 20:45:32,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-06 20:45:32,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 20:45:32,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-06 20:45:32,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=976, Unknown=0, NotChecked=0, Total=1056 [2021-06-06 20:45:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:45:32,461 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 20:45:32,462 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) [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 20:45:32,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 20:45:32,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 20:45:32,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 20:45:32,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 20:45:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 20:45:33,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable906,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:45:33,199 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 20:45:33,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 20:45:33,199 INFO L82 PathProgramCache]: Analyzing trace with hash 737210232, now seen corresponding path program 14 times [2021-06-06 20:45:33,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 20:45:33,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788423594] [2021-06-06 20:45:33,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 20:45:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 20:45:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 20:45:33,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 20:45:33,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788423594] [2021-06-06 20:45:33,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788423594] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 20:45:33,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141906592] [2021-06-06 20:45:33,381 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 20:45:33,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 20:45:33,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 20:45:33,409 WARN L261 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 52 conjunts are in the unsatisfiable core [2021-06-06 20:45:33,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 20:45:34,025 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-06-06 20:45:34,026 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 20:45:34,026 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 [2021-06-06 20:45:35,222 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 351 [2021-06-06 20:45:35,379 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 372 [2021-06-06 20:45:35,577 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 408 [2021-06-06 20:45:36,836 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 389 [2021-06-06 20:45:37,022 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 591 DAG size of output: 409 [2021-06-06 20:45:37,258 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 445 [2021-06-06 20:45:37,781 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 727 [2021-06-06 20:45:38,312 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 728 [2021-06-06 20:45:38,945 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 753 [2021-06-06 20:45:39,695 WARN L205 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 775 [2021-06-06 20:45:40,545 WARN L205 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-06-06 20:45:41,391 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-06-06 20:45:42,405 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1192 DAG size of output: 813 [2021-06-06 20:45:44,618 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 815 DAG size of output: 982 [2021-06-06 20:45:46,248 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 786 DAG size of output: 884 [2021-06-06 20:45:47,257 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 765 DAG size of output: 798 [2021-06-06 20:45:48,785 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 754 DAG size of output: 1042 [2021-06-06 20:45:49,589 WARN L205 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 844 [2021-06-06 20:45:49,910 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 317 [2021-06-06 20:45:50,781 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 179 [2021-06-06 20:45:50,888 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 256 [2021-06-06 20:45:51,026 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-06-06 20:45:52,025 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 230 [2021-06-06 20:45:52,206 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 252 [2021-06-06 20:45:52,392 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 259 [2021-06-06 20:45:53,213 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 199 [2021-06-06 20:45:53,529 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 331 [2021-06-06 20:45:53,917 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 350 [2021-06-06 20:45:55,000 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 213 [2021-06-06 20:45:55,160 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 217 [2021-06-06 20:45:55,664 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 246 [2021-06-06 20:45:56,139 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 763 DAG size of output: 331 [2021-06-06 20:45:56,299 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 262 [2021-06-06 20:45:56,503 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 324 [2021-06-06 20:45:56,663 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 244 [2021-06-06 20:45:57,267 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 257 [2021-06-06 20:45:57,546 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 218 [2021-06-06 20:45:57,666 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 210 [2021-06-06 20:45:57,819 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 228 [2021-06-06 20:45:57,981 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 241 [2021-06-06 20:45:59,169 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 238 [2021-06-06 20:45:59,331 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 282 [2021-06-06 20:45:59,560 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 300 [2021-06-06 20:45:59,886 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 296 [2021-06-06 20:46:01,176 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 216 [2021-06-06 20:46:01,334 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 235 [2021-06-06 20:46:01,785 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 834 DAG size of output: 313 [2021-06-06 20:46:02,804 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1222 DAG size of output: 455 [2021-06-06 20:46:04,210 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1424 DAG size of output: 577 [2021-06-06 20:46:04,377 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 277 [2021-06-06 20:46:04,573 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 283 [2021-06-06 20:46:04,715 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 273 [2021-06-06 20:46:05,509 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 239 [2021-06-06 20:46:05,670 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 285 [2021-06-06 20:46:06,906 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 247 [2021-06-06 20:46:07,137 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 311 [2021-06-06 20:46:08,167 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 186 [2021-06-06 20:46:08,358 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 201 [2021-06-06 20:46:08,832 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 400 [2021-06-06 20:46:09,447 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 483 [2021-06-06 20:46:10,162 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 720 DAG size of output: 507 [2021-06-06 20:46:11,478 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 251 [2021-06-06 20:46:11,630 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 272 [2021-06-06 20:46:11,861 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 285 [2021-06-06 20:46:12,128 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 288 [2021-06-06 20:46:12,817 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 226 [2021-06-06 20:46:13,256 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 208 [2021-06-06 20:46:13,489 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 282 [2021-06-06 20:46:14,350 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 311 [2021-06-06 20:46:14,709 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 354 [2021-06-06 20:46:15,626 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 217 [2021-06-06 20:46:15,783 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 217 [2021-06-06 20:46:16,407 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 451 [2021-06-06 20:46:17,127 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 723 DAG size of output: 463 [2021-06-06 20:46:18,379 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1029 DAG size of output: 672 [2021-06-06 20:46:20,454 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1517 DAG size of output: 968 [2021-06-06 20:46:21,381 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 286 [2021-06-06 20:46:21,543 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 287 [2021-06-06 20:46:22,157 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 312 [2021-06-06 20:46:22,835 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 325 [2021-06-06 20:46:23,191 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 328 [2021-06-06 20:46:23,325 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-06-06 20:46:24,086 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 212 [2021-06-06 20:46:24,254 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 288 [2021-06-06 20:46:25,068 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 171 [2021-06-06 20:46:25,258 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2021-06-06 20:46:25,660 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 373 [2021-06-06 20:46:26,641 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 516 DAG size of output: 452 [2021-06-06 20:46:27,213 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 211 [2021-06-06 20:46:27,651 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 235 [2021-06-06 20:46:27,895 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 297 [2021-06-06 20:46:28,415 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 227 [2021-06-06 20:46:28,836 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 393 [2021-06-06 20:46:29,265 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 397 [2021-06-06 20:46:30,048 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2021-06-06 20:46:30,377 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 264 [2021-06-06 20:46:31,187 WARN L205 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 541 [2021-06-06 20:46:32,176 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 680 DAG size of output: 566 [2021-06-06 20:46:33,651 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1012 DAG size of output: 839 [2021-06-06 20:46:35,941 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 1410 DAG size of output: 1099 [2021-06-06 20:46:40,717 WARN L205 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 2226 DAG size of output: 1704 [2021-06-06 20:46:47,121 WARN L205 SmtUtils]: Spent 6.39 s on a formula simplification. DAG size of input: 3213 DAG size of output: 1793 [2021-06-06 20:46:55,210 WARN L205 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 3741 DAG size of output: 2301 [2021-06-06 20:47:04,679 WARN L205 SmtUtils]: Spent 9.45 s on a formula simplification. DAG size of input: 4093 DAG size of output: 2511 [2021-06-06 20:47:05,965 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 739 DAG size of output: 1024 [2021-06-06 20:47:06,800 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 826 [2021-06-06 20:47:06,966 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 281 [2021-06-06 20:47:07,201 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 294 [2021-06-06 20:47:08,407 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 243 [2021-06-06 20:47:08,891 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 284 [2021-06-06 20:47:09,523 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-06-06 20:47:09,643 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-06-06 20:47:10,556 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 243 [2021-06-06 20:47:10,797 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-06-06 20:47:11,041 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-06-06 20:47:11,474 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 428 [2021-06-06 20:47:12,226 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 566 [2021-06-06 20:47:12,930 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 156 [2021-06-06 20:47:13,112 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2021-06-06 20:47:13,965 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 239 [2021-06-06 20:47:14,202 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 291 [2021-06-06 20:47:14,641 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 392 [2021-06-06 20:47:15,915 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 859 DAG size of output: 794 [2021-06-06 20:47:17,428 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1020 DAG size of output: 881 [2021-06-06 20:47:17,706 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 235 [2021-06-06 20:47:17,851 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 297 [2021-06-06 20:47:17,975 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 236 [2021-06-06 20:47:18,200 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 244 [2021-06-06 20:47:18,851 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 207 [2021-06-06 20:47:19,133 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 334 [2021-06-06 20:47:19,605 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 209 [2021-06-06 20:47:19,711 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 226 [2021-06-06 20:47:20,232 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 310 [2021-06-06 20:47:20,799 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 478 DAG size of output: 446 [2021-06-06 20:47:20,979 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 195 [2021-06-06 20:47:21,687 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 256 [2021-06-06 20:47:22,059 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 308 [2021-06-06 20:47:22,848 WARN L205 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 508 [2021-06-06 20:47:23,485 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 156 [2021-06-06 20:47:23,631 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 173 [2021-06-06 20:47:23,873 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 215 [2021-06-06 20:47:25,084 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 262 [2021-06-06 20:47:25,619 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 284 [2021-06-06 20:47:25,972 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 348 [2021-06-06 20:47:27,188 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 994 DAG size of output: 708 [2021-06-06 20:47:28,626 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1148 DAG size of output: 774 [2021-06-06 20:47:31,808 WARN L205 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 1747 DAG size of output: 1412 [2021-06-06 20:47:32,058 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 259 [2021-06-06 20:47:32,171 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 256 [2021-06-06 20:47:32,996 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 190 [2021-06-06 20:47:33,861 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 203 [2021-06-06 20:47:34,058 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 249 [2021-06-06 20:47:34,252 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 321 [2021-06-06 20:47:34,430 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 260 [2021-06-06 20:47:34,738 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 192 [2021-06-06 20:47:35,094 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 249 [2021-06-06 20:47:35,266 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 271 [2021-06-06 20:47:35,540 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 251 [2021-06-06 20:47:35,986 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 251 [2021-06-06 20:47:36,163 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 274 [2021-06-06 20:47:36,408 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 321 [2021-06-06 20:47:36,542 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 238 [2021-06-06 20:47:37,158 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 253 [2021-06-06 20:47:37,532 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 213 [2021-06-06 20:47:37,719 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 242 [2021-06-06 20:47:37,989 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 265 [2021-06-06 20:47:38,389 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 330 [2021-06-06 20:47:38,985 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 911 DAG size of output: 360 [2021-06-06 20:47:39,123 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 245 [2021-06-06 20:47:40,057 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 225 [2021-06-06 20:47:41,001 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 261 [2021-06-06 20:47:41,213 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-06-06 20:47:41,428 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-06-06 20:47:41,765 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 504 DAG size of output: 357 [2021-06-06 20:47:42,256 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 385 [2021-06-06 20:47:43,206 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 218 [2021-06-06 20:47:43,448 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 242 [2021-06-06 20:47:43,926 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 743 DAG size of output: 350 [2021-06-06 20:47:45,115 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1315 DAG size of output: 518 [2021-06-06 20:47:50,227 WARN L205 SmtUtils]: Spent 5.11 s on a formula simplification. DAG size of input: 2765 DAG size of output: 1722 [2021-06-06 20:47:55,965 WARN L205 SmtUtils]: Spent 5.73 s on a formula simplification. DAG size of input: 2888 DAG size of output: 1777 [2021-06-06 20:48:03,098 WARN L205 SmtUtils]: Spent 7.12 s on a formula simplification. DAG size of input: 3423 DAG size of output: 2286 [2021-06-06 20:48:11,603 WARN L205 SmtUtils]: Spent 8.49 s on a formula simplification. DAG size of input: 3768 DAG size of output: 2589 [2021-06-06 20:48:12,540 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 242 [2021-06-06 20:48:13,356 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 227 [2021-06-06 20:48:13,512 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 257 [2021-06-06 20:48:14,518 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 255 [2021-06-06 20:48:14,671 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 268 [2021-06-06 20:48:14,843 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 266 [2021-06-06 20:48:15,122 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 348 [2021-06-06 20:48:15,963 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 411 [2021-06-06 20:48:16,467 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 475 [2021-06-06 20:48:17,171 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 486 [2021-06-06 20:48:17,990 WARN L205 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 626 DAG size of output: 495 [2021-06-06 20:48:19,594 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 237 [2021-06-06 20:48:19,735 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 235 [2021-06-06 20:48:19,951 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 303 [2021-06-06 20:48:20,650 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 446 DAG size of output: 350 [2021-06-06 20:48:21,382 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 194 [2021-06-06 20:48:21,760 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 386 [2021-06-06 20:48:22,299 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 399 [2021-06-06 20:48:23,815 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1065 DAG size of output: 745 [2021-06-06 20:48:25,444 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1077 DAG size of output: 744 [2021-06-06 20:48:27,309 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1098 DAG size of output: 750 [2021-06-06 20:48:39,038 WARN L205 SmtUtils]: Spent 11.72 s on a formula simplification. DAG size of input: 4707 DAG size of output: 3202 [2021-06-06 20:49:01,610 WARN L205 SmtUtils]: Spent 22.55 s on a formula simplification. DAG size of input: 6894 DAG size of output: 4324 [2021-06-06 20:49:27,053 WARN L205 SmtUtils]: Spent 25.41 s on a formula simplification. DAG size of input: 7322 DAG size of output: 4477 [2021-06-06 20:49:28,140 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 552 DAG size of output: 317 [2021-06-06 20:49:28,297 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 343 [2021-06-06 20:49:29,623 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 378 [2021-06-06 20:49:29,829 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 404 [2021-06-06 20:49:30,240 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 627 [2021-06-06 20:49:30,732 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 654 [2021-06-06 20:49:59,599 WARN L205 SmtUtils]: Spent 28.85 s on a formula simplification. DAG size of input: 8002 DAG size of output: 4954 [2021-06-06 20:50:32,577 WARN L205 SmtUtils]: Spent 32.94 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-06-06 20:51:05,350 WARN L205 SmtUtils]: Spent 32.74 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-06-06 20:51:41,808 WARN L205 SmtUtils]: Spent 36.43 s on a formula simplification. DAG size of input: 8440 DAG size of output: 5295 [2021-06-06 20:52:36,548 WARN L205 SmtUtils]: Spent 54.71 s on a formula simplification. DAG size of input: 5297 DAG size of output: 7538 [2021-06-06 20:53:31,134 WARN L205 SmtUtils]: Spent 54.55 s on a formula simplification. DAG size of input: 4323 DAG size of output: 6374 [2021-06-06 20:54:28,609 WARN L205 SmtUtils]: Spent 57.44 s on a formula simplification. DAG size of input: 3823 DAG size of output: 4222 [2021-06-06 20:54:35,940 WARN L205 SmtUtils]: Spent 7.30 s on a formula simplification. DAG size of input: 1942 DAG size of output: 1778 [2021-06-06 20:54:48,731 WARN L205 SmtUtils]: Spent 12.78 s on a formula simplification. DAG size of input: 1680 DAG size of output: 1578 [2021-06-06 20:54:48,995 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 1450 [2021-06-06 20:54:57,237 WARN L205 SmtUtils]: Spent 8.24 s on a formula simplification. DAG size of input: 1347 DAG size of output: 1954 [2021-06-06 20:54:57,731 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 1150 DAG size of output: 1150 [2021-06-06 20:54:58,098 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 1034 [2021-06-06 20:55:02,723 WARN L205 SmtUtils]: Spent 4.12 s on a formula simplification. DAG size of input: 981 DAG size of output: 1395 [2021-06-06 20:55:02,834 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 872 [2021-06-06 20:55:02,940 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 595 [2021-06-06 20:55:03,958 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 272 [2021-06-06 20:55:04,396 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 331 [2021-06-06 20:55:04,693 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 377 [2021-06-06 20:55:05,743 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 472 [2021-06-06 20:55:05,947 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 208 [2021-06-06 20:55:06,314 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 187 [2021-06-06 20:55:06,663 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 266 [2021-06-06 20:55:07,712 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 289 [2021-06-06 20:55:07,975 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 337 [2021-06-06 20:55:08,340 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 399 [2021-06-06 20:55:08,811 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 752 DAG size of output: 473 [2021-06-06 20:55:09,884 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1245 DAG size of output: 754 [2021-06-06 20:55:10,097 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 778 [2021-06-06 20:55:11,309 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 244 [2021-06-06 20:55:11,466 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 279 [2021-06-06 20:55:11,974 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 355 [2021-06-06 20:55:12,315 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 427 [2021-06-06 20:55:12,438 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 556 [2021-06-06 20:55:14,083 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 216 [2021-06-06 20:55:14,516 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 294 [2021-06-06 20:55:14,787 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 361 [2021-06-06 20:55:15,155 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 710 DAG size of output: 434 [2021-06-06 20:55:16,001 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 614 [2021-06-06 20:55:18,122 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 1979 DAG size of output: 1146 [2021-06-06 20:55:20,685 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 2136 DAG size of output: 1241 [2021-06-06 20:55:23,714 WARN L205 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 2252 DAG size of output: 1326 [2021-06-06 20:55:28,869 WARN L205 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 3080 DAG size of output: 1978 [2021-06-06 20:55:29,246 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 294 [2021-06-06 20:55:29,444 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 228 [2021-06-06 20:55:30,755 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 227 [2021-06-06 20:55:31,013 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 301 [2021-06-06 20:55:31,358 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 370 [2021-06-06 20:55:37,079 WARN L205 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 3478 DAG size of output: 2225 [2021-06-06 20:55:37,669 WARN L205 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 431 [2021-06-06 20:55:38,367 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 243 [2021-06-06 20:55:38,513 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 237 [2021-06-06 20:55:38,728 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 247 [2021-06-06 20:55:38,835 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 217 [2021-06-06 20:55:39,530 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2021-06-06 20:55:39,674 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 266 [2021-06-06 20:55:40,431 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 310 [2021-06-06 20:55:40,633 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 316 [2021-06-06 20:55:40,976 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 411 [2021-06-06 20:55:41,604 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 543 [2021-06-06 20:55:42,406 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 909 DAG size of output: 604 [2021-06-06 20:55:49,728 WARN L205 SmtUtils]: Spent 7.31 s on a formula simplification. DAG size of input: 4146 DAG size of output: 2641 [2021-06-06 20:55:58,163 WARN L205 SmtUtils]: Spent 8.42 s on a formula simplification. DAG size of input: 4264 DAG size of output: 2757 [2021-06-06 20:56:15,223 WARN L205 SmtUtils]: Spent 17.03 s on a formula simplification. DAG size of input: 6395 DAG size of output: 4339 [2021-06-06 20:56:40,655 WARN L205 SmtUtils]: Spent 25.39 s on a formula simplification. DAG size of input: 4239 DAG size of output: 3919 [2021-06-06 20:57:50,952 WARN L205 SmtUtils]: Spent 1.17 m on a formula simplification. DAG size of input: 3721 DAG size of output: 4036 [2021-06-06 20:58:08,869 WARN L205 SmtUtils]: Spent 17.90 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1732 [2021-06-06 20:58:09,294 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 306 [2021-06-06 20:58:09,516 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 236 [2021-06-06 20:58:10,610 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 278 [2021-06-06 20:58:10,858 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 322 [2021-06-06 20:58:10,999 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 201 [2021-06-06 20:58:11,801 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 254 [2021-06-06 20:58:12,027 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 271 [2021-06-06 20:58:12,314 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 290 [2021-06-06 20:58:13,121 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 477 [2021-06-06 20:58:13,816 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 1605 DAG size of output: 1605 [2021-06-06 20:58:30,706 WARN L205 SmtUtils]: Spent 16.88 s on a formula simplification. DAG size of input: 1500 DAG size of output: 2098 [2021-06-06 20:58:37,896 WARN L205 SmtUtils]: Spent 7.18 s on a formula simplification. DAG size of input: 1251 DAG size of output: 1697 [2021-06-06 20:58:42,578 WARN L205 SmtUtils]: Spent 4.67 s on a formula simplification. DAG size of input: 1076 DAG size of output: 1519 [2021-06-06 20:58:42,865 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 1018 DAG size of output: 1018 [2021-06-06 20:58:43,126 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 907 DAG size of output: 907 [2021-06-06 20:58:43,364 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 867 [2021-06-06 20:58:43,480 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 590 [2021-06-06 20:58:44,514 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 223 [2021-06-06 20:58:44,760 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 437 DAG size of output: 267 [2021-06-06 20:58:45,006 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 332 [2021-06-06 20:58:45,120 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 562 [2021-06-06 20:58:45,857 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 219 [2021-06-06 20:58:46,120 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 266 [2021-06-06 20:58:46,345 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 321 [2021-06-06 20:58:46,868 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 855 DAG size of output: 444 [2021-06-06 20:58:47,545 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 484 [2021-06-06 20:58:48,370 WARN L205 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 563 [2021-06-06 20:58:48,629 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 1043 DAG size of output: 1043 [2021-06-06 20:58:48,854 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 927 DAG size of output: 927 [2021-06-06 20:58:49,209 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 880 [2021-06-06 20:58:50,166 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 448 DAG size of output: 262 [2021-06-06 20:58:50,350 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 298 [2021-06-06 20:58:50,593 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 342 [2021-06-06 20:58:50,700 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 605 [2021-06-06 20:58:51,918 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 247 [2021-06-06 20:58:52,106 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 281 [2021-06-06 20:58:52,389 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 610 DAG size of output: 352 [2021-06-06 20:58:52,968 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 909 DAG size of output: 494 [2021-06-06 20:58:53,699 WARN L205 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 1019 DAG size of output: 574 [2021-06-06 20:58:54,652 WARN L205 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 1133 DAG size of output: 659 [2021-06-06 20:58:56,611 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 1647 DAG size of output: 921 [2021-06-06 20:58:56,925 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 913 [2021-06-06 20:58:57,298 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 851 [2021-06-06 20:58:57,437 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 611 DAG size of output: 611 [2021-06-06 20:58:58,000 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 441 [2021-06-06 20:58:58,630 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 265 [2021-06-06 20:58:59,310 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 212 [2021-06-06 20:58:59,514 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 228 [2021-06-06 20:58:59,758 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 285 [2021-06-06 20:59:00,086 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 336 [2021-06-06 20:59:00,531 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 677 DAG size of output: 408 [2021-06-06 20:59:00,672 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 564 [2021-06-06 20:59:01,053 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 489 DAG size of output: 489 [2021-06-06 20:59:01,271 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 420 [2021-06-06 20:59:01,467 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 208 [2021-06-06 20:59:02,232 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 234 [2021-06-06 20:59:02,438 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 269 [2021-06-06 20:59:02,667 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 301 [2021-06-06 20:59:02,977 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 600 DAG size of output: 360 [2021-06-06 20:59:03,402 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 438 [2021-06-06 20:59:04,389 WARN L205 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 1022 DAG size of output: 593 [2021-06-06 20:59:05,581 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1129 DAG size of output: 652 [2021-06-06 20:59:09,193 WARN L205 SmtUtils]: Spent 3.61 s on a formula simplification. DAG size of input: 2503 DAG size of output: 1315 [2021-06-06 20:59:15,109 WARN L205 SmtUtils]: Spent 5.91 s on a formula simplification. DAG size of input: 3337 DAG size of output: 1964 [2021-06-06 20:59:15,365 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 292 [2021-06-06 20:59:15,530 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 226 [2021-06-06 20:59:16,286 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 239 [2021-06-06 20:59:16,461 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 288 [2021-06-06 20:59:16,680 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 297 Received shutdown request... [2021-06-06 20:59:22,971 WARN L205 SmtUtils]: Spent 6.29 s on a formula simplification. DAG size of input: 3593 DAG size of output: 2151 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown