java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_ptr_monotonic_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:21:51,227 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:21:51,229 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:21:51,241 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:21:51,241 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:21:51,242 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:21:51,244 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:21:51,246 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:21:51,248 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:21:51,248 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:21:51,249 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:21:51,250 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:21:51,251 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:21:51,252 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:21:51,253 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:21:51,254 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:21:51,255 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:21:51,256 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:21:51,259 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:21:51,260 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:21:51,261 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:21:51,262 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:21:51,265 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:21:51,265 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:21:51,266 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:21:51,267 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:21:51,267 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:21:51,268 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:21:51,269 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:21:51,269 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:21:51,273 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:21:51,274 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:21:51,275 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:21:51,275 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:21:51,277 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:21:51,278 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:21:51,278 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:21:51,281 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:21:51,281 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:21:51,282 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:21:51,310 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:21:51,310 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:21:51,312 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:21:51,313 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:21:51,313 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:21:51,313 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:21:51,313 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:21:51,313 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:21:51,314 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:21:51,314 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:21:51,314 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:21:51,315 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:21:51,315 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:21:51,315 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:21:51,315 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:21:51,315 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:21:51,316 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:21:51,316 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:21:51,316 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:21:51,316 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:21:51,317 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:21:51,318 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:21:51,318 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:21:51,318 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:21:51,318 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:21:51,319 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:21:51,319 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:21:51,319 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:21:51,320 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:21:51,374 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:21:51,389 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:21:51,393 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:21:51,395 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:21:51,396 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:21:51,397 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_ptr_monotonic_true-unreach-call.i [2019-05-23 11:21:51,460 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765934739/42c538fa37884262b1952fb0679e86c7/FLAG1458537b9 [2019-05-23 11:21:51,873 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:21:51,874 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_ptr_monotonic_true-unreach-call.i [2019-05-23 11:21:51,878 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765934739/42c538fa37884262b1952fb0679e86c7/FLAG1458537b9 [2019-05-23 11:21:52,255 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765934739/42c538fa37884262b1952fb0679e86c7 [2019-05-23 11:21:52,265 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:21:52,266 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:21:52,268 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:52,268 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:21:52,273 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:21:52,274 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,277 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169254bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52, skipping insertion in model container [2019-05-23 11:21:52,277 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,285 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:21:52,306 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:21:52,495 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:52,517 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:21:52,545 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:52,573 INFO L146 ILogger]: Completed translation [2019-05-23 11:21:52,574 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52 WrapperNode [2019-05-23 11:21:52,574 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:52,576 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:52,576 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:21:52,576 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:21:52,587 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,610 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,635 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:52,636 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:21:52,636 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:21:52,636 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:21:52,777 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,778 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,782 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,782 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,790 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,804 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,810 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (1/1) ... [2019-05-23 11:21:52,816 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:21:52,816 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:21:52,816 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:21:52,817 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:21:52,817 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (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:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:21:52,876 INFO L146 ILogger]: Found specification of procedure read~$Pointer$ [2019-05-23 11:21:52,876 INFO L146 ILogger]: Found specification of procedure write~$Pointer$ [2019-05-23 11:21:52,876 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:21:52,876 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:21:52,877 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnHeap [2019-05-23 11:21:52,877 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:21:52,877 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:21:52,877 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:21:53,328 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:21:53,328 INFO L146 ILogger]: Removed 8 assume(true) statements. [2019-05-23 11:21:53,330 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:53 BoogieIcfgContainer [2019-05-23 11:21:53,330 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:21:53,331 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:21:53,331 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:21:53,334 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:21:53,334 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:21:52" (1/3) ... [2019-05-23 11:21:53,335 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2501c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:53, skipping insertion in model container [2019-05-23 11:21:53,335 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:52" (2/3) ... [2019-05-23 11:21:53,336 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2501c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:53, skipping insertion in model container [2019-05-23 11:21:53,336 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:53" (3/3) ... [2019-05-23 11:21:53,338 INFO L146 ILogger]: Analyzing ICFG array_of_struct_ptr_monotonic_true-unreach-call.i [2019-05-23 11:21:53,347 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:21:53,355 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:21:53,372 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:21:53,402 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:21:53,403 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:21:53,403 INFO L146 ILogger]: Hoare is true [2019-05-23 11:21:53,403 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:21:53,404 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:21:53,404 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:21:53,404 INFO L146 ILogger]: Difference is false [2019-05-23 11:21:53,404 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:21:53,405 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:21:53,420 INFO L146 ILogger]: Start isEmpty. Operand 43 states. [2019-05-23 11:21:53,427 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:21:53,427 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:53,428 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:53,431 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:53,436 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:53,437 INFO L146 ILogger]: Analyzing trace with hash 1039381423, now seen corresponding path program 1 times [2019-05-23 11:21:53,438 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:53,439 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:53,493 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:53,493 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:53,493 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:53,537 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:53,572 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:53,575 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:53,577 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:21:53,580 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:21:53,590 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:21:53,591 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:21:53,592 INFO L146 ILogger]: Start difference. First operand 43 states. Second operand 2 states. [2019-05-23 11:21:53,608 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:53,608 INFO L146 ILogger]: Finished difference Result 64 states and 73 transitions. [2019-05-23 11:21:53,608 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:21:53,609 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 23 [2019-05-23 11:21:53,610 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:53,618 INFO L146 ILogger]: With dead ends: 64 [2019-05-23 11:21:53,618 INFO L146 ILogger]: Without dead ends: 40 [2019-05-23 11:21:53,621 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:21:53,636 INFO L146 ILogger]: Start minimizeSevpa. Operand 40 states. [2019-05-23 11:21:53,648 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-05-23 11:21:53,649 INFO L146 ILogger]: Start removeUnreachable. Operand 40 states. [2019-05-23 11:21:53,650 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2019-05-23 11:21:53,652 INFO L146 ILogger]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 23 [2019-05-23 11:21:53,652 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:53,652 INFO L146 ILogger]: Abstraction has 40 states and 43 transitions. [2019-05-23 11:21:53,652 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:21:53,652 INFO L146 ILogger]: Start isEmpty. Operand 40 states and 43 transitions. [2019-05-23 11:21:53,653 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:21:53,654 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:53,654 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:53,654 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:53,654 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:53,655 INFO L146 ILogger]: Analyzing trace with hash 725428184, now seen corresponding path program 1 times [2019-05-23 11:21:53,655 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:53,655 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:53,656 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:53,656 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:53,657 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:53,670 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:53,714 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:53,715 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:53,715 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:21:53,717 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:21:53,717 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:21:53,718 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:53,718 INFO L146 ILogger]: Start difference. First operand 40 states and 43 transitions. Second operand 3 states. [2019-05-23 11:21:53,828 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:53,829 INFO L146 ILogger]: Finished difference Result 89 states and 96 transitions. [2019-05-23 11:21:53,830 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:21:53,830 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 23 [2019-05-23 11:21:53,830 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:53,831 INFO L146 ILogger]: With dead ends: 89 [2019-05-23 11:21:53,832 INFO L146 ILogger]: Without dead ends: 71 [2019-05-23 11:21:53,833 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:53,834 INFO L146 ILogger]: Start minimizeSevpa. Operand 71 states. [2019-05-23 11:21:53,839 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 71 to 41. [2019-05-23 11:21:53,840 INFO L146 ILogger]: Start removeUnreachable. Operand 41 states. [2019-05-23 11:21:53,841 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-05-23 11:21:53,841 INFO L146 ILogger]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 23 [2019-05-23 11:21:53,841 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:53,842 INFO L146 ILogger]: Abstraction has 41 states and 44 transitions. [2019-05-23 11:21:53,842 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:21:53,842 INFO L146 ILogger]: Start isEmpty. Operand 41 states and 44 transitions. [2019-05-23 11:21:53,843 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 35 [2019-05-23 11:21:53,843 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:53,844 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:53,844 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:53,844 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:53,844 INFO L146 ILogger]: Analyzing trace with hash 1021945196, now seen corresponding path program 1 times [2019-05-23 11:21:53,844 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:53,844 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:53,846 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:53,846 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:53,846 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:53,888 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:53,952 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:53,952 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:53,953 INFO L146 ILogger]: Switched to mode Z3_FP 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:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:53,969 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:54,028 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:54,030 INFO L146 ILogger]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:21:54,037 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:54,152 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:54,183 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:54,184 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-05-23 11:21:54,184 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:21:54,184 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:21:54,185 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:21:54,185 INFO L146 ILogger]: Start difference. First operand 41 states and 44 transitions. Second operand 5 states. [2019-05-23 11:21:54,396 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:54,396 INFO L146 ILogger]: Finished difference Result 120 states and 129 transitions. [2019-05-23 11:21:54,397 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:21:54,397 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 34 [2019-05-23 11:21:54,398 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:54,399 INFO L146 ILogger]: With dead ends: 120 [2019-05-23 11:21:54,399 INFO L146 ILogger]: Without dead ends: 102 [2019-05-23 11:21:54,400 INFO L146 ILogger]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:21:54,400 INFO L146 ILogger]: Start minimizeSevpa. Operand 102 states. [2019-05-23 11:21:54,407 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 102 to 55. [2019-05-23 11:21:54,407 INFO L146 ILogger]: Start removeUnreachable. Operand 55 states. [2019-05-23 11:21:54,409 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2019-05-23 11:21:54,409 INFO L146 ILogger]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 34 [2019-05-23 11:21:54,409 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:54,409 INFO L146 ILogger]: Abstraction has 55 states and 59 transitions. [2019-05-23 11:21:54,409 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:21:54,410 INFO L146 ILogger]: Start isEmpty. Operand 55 states and 59 transitions. [2019-05-23 11:21:54,411 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 46 [2019-05-23 11:21:54,411 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:54,411 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:54,411 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:54,412 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:54,412 INFO L146 ILogger]: Analyzing trace with hash -667901096, now seen corresponding path program 2 times [2019-05-23 11:21:54,412 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:54,412 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:54,413 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:54,413 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:54,414 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:54,439 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:54,600 INFO L146 ILogger]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:54,601 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:54,601 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:54,614 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:54,660 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:21:54,660 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:54,661 INFO L146 ILogger]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:21:54,664 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:54,707 INFO L146 ILogger]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:54,730 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:54,730 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-05-23 11:21:54,731 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:21:54,731 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:21:54,731 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:21:54,732 INFO L146 ILogger]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2019-05-23 11:21:54,999 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:54,999 INFO L146 ILogger]: Finished difference Result 151 states and 162 transitions. [2019-05-23 11:21:54,999 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:21:54,999 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 45 [2019-05-23 11:21:55,000 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:55,003 INFO L146 ILogger]: With dead ends: 151 [2019-05-23 11:21:55,003 INFO L146 ILogger]: Without dead ends: 133 [2019-05-23 11:21:55,004 INFO L146 ILogger]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:21:55,005 INFO L146 ILogger]: Start minimizeSevpa. Operand 133 states. [2019-05-23 11:21:55,012 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 133 to 69. [2019-05-23 11:21:55,012 INFO L146 ILogger]: Start removeUnreachable. Operand 69 states. [2019-05-23 11:21:55,024 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2019-05-23 11:21:55,025 INFO L146 ILogger]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 45 [2019-05-23 11:21:55,026 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:55,026 INFO L146 ILogger]: Abstraction has 69 states and 74 transitions. [2019-05-23 11:21:55,026 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:21:55,026 INFO L146 ILogger]: Start isEmpty. Operand 69 states and 74 transitions. [2019-05-23 11:21:55,027 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 57 [2019-05-23 11:21:55,028 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:55,028 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:55,028 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:55,029 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:55,032 INFO L146 ILogger]: Analyzing trace with hash 1029569004, now seen corresponding path program 3 times [2019-05-23 11:21:55,032 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:55,032 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:55,033 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:55,034 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:55,034 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:55,097 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:55,179 INFO L146 ILogger]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:55,179 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:55,179 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:55,197 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:21:55,278 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:21:55,279 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:55,280 INFO L146 ILogger]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:21:55,283 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:55,327 INFO L146 ILogger]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:55,349 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:55,349 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-05-23 11:21:55,350 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:21:55,350 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:21:55,351 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:21:55,351 INFO L146 ILogger]: Start difference. First operand 69 states and 74 transitions. Second operand 7 states. [2019-05-23 11:21:55,567 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:55,567 INFO L146 ILogger]: Finished difference Result 182 states and 195 transitions. [2019-05-23 11:21:55,568 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:21:55,568 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 56 [2019-05-23 11:21:55,568 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:55,570 INFO L146 ILogger]: With dead ends: 182 [2019-05-23 11:21:55,570 INFO L146 ILogger]: Without dead ends: 164 [2019-05-23 11:21:55,571 INFO L146 ILogger]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:21:55,571 INFO L146 ILogger]: Start minimizeSevpa. Operand 164 states. [2019-05-23 11:21:55,577 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 164 to 83. [2019-05-23 11:21:55,578 INFO L146 ILogger]: Start removeUnreachable. Operand 83 states. [2019-05-23 11:21:55,579 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2019-05-23 11:21:55,579 INFO L146 ILogger]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 56 [2019-05-23 11:21:55,579 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:55,579 INFO L146 ILogger]: Abstraction has 83 states and 89 transitions. [2019-05-23 11:21:55,580 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:21:55,580 INFO L146 ILogger]: Start isEmpty. Operand 83 states and 89 transitions. [2019-05-23 11:21:55,582 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 68 [2019-05-23 11:21:55,582 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:55,582 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:55,582 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:55,583 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:55,583 INFO L146 ILogger]: Analyzing trace with hash -363692328, now seen corresponding path program 4 times [2019-05-23 11:21:55,583 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:55,583 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:55,584 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:55,584 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:55,584 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:55,610 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:56,159 INFO L146 ILogger]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:56,160 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:56,160 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:56,172 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:21:56,323 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:21:56,324 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:56,326 INFO L146 ILogger]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:21:56,328 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:56,358 INFO L146 ILogger]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:56,381 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:56,381 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-05-23 11:21:56,382 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:21:56,382 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:21:56,382 INFO L146 ILogger]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:21:56,383 INFO L146 ILogger]: Start difference. First operand 83 states and 89 transitions. Second operand 8 states. [2019-05-23 11:21:56,640 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:56,641 INFO L146 ILogger]: Finished difference Result 213 states and 228 transitions. [2019-05-23 11:21:56,644 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:21:56,644 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 67 [2019-05-23 11:21:56,645 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:56,646 INFO L146 ILogger]: With dead ends: 213 [2019-05-23 11:21:56,646 INFO L146 ILogger]: Without dead ends: 195 [2019-05-23 11:21:56,650 INFO L146 ILogger]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:21:56,650 INFO L146 ILogger]: Start minimizeSevpa. Operand 195 states. [2019-05-23 11:21:56,661 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 195 to 97. [2019-05-23 11:21:56,662 INFO L146 ILogger]: Start removeUnreachable. Operand 97 states. [2019-05-23 11:21:56,665 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-05-23 11:21:56,665 INFO L146 ILogger]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 67 [2019-05-23 11:21:56,665 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:56,666 INFO L146 ILogger]: Abstraction has 97 states and 104 transitions. [2019-05-23 11:21:56,666 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:21:56,666 INFO L146 ILogger]: Start isEmpty. Operand 97 states and 104 transitions. [2019-05-23 11:21:56,668 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 79 [2019-05-23 11:21:56,671 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:56,671 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:56,671 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:56,672 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:56,672 INFO L146 ILogger]: Analyzing trace with hash 233303660, now seen corresponding path program 5 times [2019-05-23 11:21:56,672 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:56,672 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:56,673 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:56,673 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:56,673 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:56,696 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:56,852 INFO L146 ILogger]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:56,853 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:56,853 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:56,862 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:21:57,297 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:21:57,298 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:57,299 INFO L146 ILogger]: Trace formula consists of 192 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:21:57,305 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:57,361 INFO L146 ILogger]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:57,381 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:57,381 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-05-23 11:21:57,381 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:21:57,382 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:21:57,382 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:57,382 INFO L146 ILogger]: Start difference. First operand 97 states and 104 transitions. Second operand 9 states. [2019-05-23 11:21:57,527 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:57,527 INFO L146 ILogger]: Finished difference Result 244 states and 261 transitions. [2019-05-23 11:21:57,528 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:21:57,528 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 78 [2019-05-23 11:21:57,529 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:57,530 INFO L146 ILogger]: With dead ends: 244 [2019-05-23 11:21:57,530 INFO L146 ILogger]: Without dead ends: 226 [2019-05-23 11:21:57,531 INFO L146 ILogger]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:57,531 INFO L146 ILogger]: Start minimizeSevpa. Operand 226 states. [2019-05-23 11:21:57,538 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 226 to 111. [2019-05-23 11:21:57,538 INFO L146 ILogger]: Start removeUnreachable. Operand 111 states. [2019-05-23 11:21:57,541 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2019-05-23 11:21:57,541 INFO L146 ILogger]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 78 [2019-05-23 11:21:57,542 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:57,542 INFO L146 ILogger]: Abstraction has 111 states and 119 transitions. [2019-05-23 11:21:57,542 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:21:57,542 INFO L146 ILogger]: Start isEmpty. Operand 111 states and 119 transitions. [2019-05-23 11:21:57,544 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 90 [2019-05-23 11:21:57,544 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:57,544 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:57,545 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:57,545 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:57,545 INFO L146 ILogger]: Analyzing trace with hash -996492712, now seen corresponding path program 6 times [2019-05-23 11:21:57,545 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:57,545 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:57,546 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:57,546 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:57,546 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:57,568 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:57,827 INFO L146 ILogger]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:57,828 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:57,828 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:57,839 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:21:58,496 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:21:58,496 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:58,498 INFO L146 ILogger]: Trace formula consists of 220 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:21:58,503 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:58,529 INFO L146 ILogger]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:58,550 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:58,551 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2019-05-23 11:21:58,551 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:21:58,551 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:21:58,552 INFO L146 ILogger]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:21:58,552 INFO L146 ILogger]: Start difference. First operand 111 states and 119 transitions. Second operand 10 states. [2019-05-23 11:21:58,762 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:58,762 INFO L146 ILogger]: Finished difference Result 275 states and 294 transitions. [2019-05-23 11:21:58,763 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:21:58,763 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 89 [2019-05-23 11:21:58,764 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:58,766 INFO L146 ILogger]: With dead ends: 275 [2019-05-23 11:21:58,766 INFO L146 ILogger]: Without dead ends: 257 [2019-05-23 11:21:58,767 INFO L146 ILogger]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:21:58,767 INFO L146 ILogger]: Start minimizeSevpa. Operand 257 states. [2019-05-23 11:21:58,775 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 257 to 125. [2019-05-23 11:21:58,775 INFO L146 ILogger]: Start removeUnreachable. Operand 125 states. [2019-05-23 11:21:58,778 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 125 states to 125 states and 134 transitions. [2019-05-23 11:21:58,778 INFO L146 ILogger]: Start accepts. Automaton has 125 states and 134 transitions. Word has length 89 [2019-05-23 11:21:58,780 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:58,780 INFO L146 ILogger]: Abstraction has 125 states and 134 transitions. [2019-05-23 11:21:58,780 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:21:58,780 INFO L146 ILogger]: Start isEmpty. Operand 125 states and 134 transitions. [2019-05-23 11:21:58,782 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 101 [2019-05-23 11:21:58,782 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:58,782 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:58,783 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:58,783 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:58,783 INFO L146 ILogger]: Analyzing trace with hash 1083146988, now seen corresponding path program 7 times [2019-05-23 11:21:58,783 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:58,783 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:58,784 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,784 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:58,784 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,807 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:59,044 INFO L146 ILogger]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:59,044 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:59,044 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:59,054 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:59,095 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:59,096 INFO L146 ILogger]: Trace formula consists of 248 conjuncts, 9 conjunts are in the unsatisfiable core [2019-05-23 11:21:59,100 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:59,152 INFO L146 ILogger]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:59,174 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:59,175 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2019-05-23 11:21:59,175 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:21:59,175 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:21:59,176 INFO L146 ILogger]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:21:59,176 INFO L146 ILogger]: Start difference. First operand 125 states and 134 transitions. Second operand 11 states. [2019-05-23 11:21:59,313 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:59,313 INFO L146 ILogger]: Finished difference Result 306 states and 327 transitions. [2019-05-23 11:21:59,316 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-05-23 11:21:59,316 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 100 [2019-05-23 11:21:59,317 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:59,319 INFO L146 ILogger]: With dead ends: 306 [2019-05-23 11:21:59,319 INFO L146 ILogger]: Without dead ends: 288 [2019-05-23 11:21:59,320 INFO L146 ILogger]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:21:59,320 INFO L146 ILogger]: Start minimizeSevpa. Operand 288 states. [2019-05-23 11:21:59,325 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 288 to 139. [2019-05-23 11:21:59,325 INFO L146 ILogger]: Start removeUnreachable. Operand 139 states. [2019-05-23 11:21:59,327 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2019-05-23 11:21:59,327 INFO L146 ILogger]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 100 [2019-05-23 11:21:59,328 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:59,328 INFO L146 ILogger]: Abstraction has 139 states and 149 transitions. [2019-05-23 11:21:59,328 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:21:59,328 INFO L146 ILogger]: Start isEmpty. Operand 139 states and 149 transitions. [2019-05-23 11:21:59,330 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 112 [2019-05-23 11:21:59,330 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:59,330 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:59,330 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:59,330 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:59,331 INFO L146 ILogger]: Analyzing trace with hash -1073654312, now seen corresponding path program 8 times [2019-05-23 11:21:59,331 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:59,331 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:59,332 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:59,333 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:59,333 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:59,357 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:59,764 INFO L146 ILogger]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:59,764 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:59,765 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:59,776 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:59,837 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:21:59,837 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:59,838 INFO L146 ILogger]: Trace formula consists of 276 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:21:59,842 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:59,910 INFO L146 ILogger]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:59,930 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:59,930 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-05-23 11:21:59,930 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:21:59,930 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:21:59,931 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:21:59,931 INFO L146 ILogger]: Start difference. First operand 139 states and 149 transitions. Second operand 12 states. [2019-05-23 11:22:00,099 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:00,100 INFO L146 ILogger]: Finished difference Result 337 states and 360 transitions. [2019-05-23 11:22:00,100 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:22:00,100 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 111 [2019-05-23 11:22:00,101 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:00,103 INFO L146 ILogger]: With dead ends: 337 [2019-05-23 11:22:00,103 INFO L146 ILogger]: Without dead ends: 319 [2019-05-23 11:22:00,104 INFO L146 ILogger]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:22:00,105 INFO L146 ILogger]: Start minimizeSevpa. Operand 319 states. [2019-05-23 11:22:00,109 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 319 to 153. [2019-05-23 11:22:00,109 INFO L146 ILogger]: Start removeUnreachable. Operand 153 states. [2019-05-23 11:22:00,110 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 153 states to 153 states and 164 transitions. [2019-05-23 11:22:00,110 INFO L146 ILogger]: Start accepts. Automaton has 153 states and 164 transitions. Word has length 111 [2019-05-23 11:22:00,110 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:00,110 INFO L146 ILogger]: Abstraction has 153 states and 164 transitions. [2019-05-23 11:22:00,110 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:22:00,111 INFO L146 ILogger]: Start isEmpty. Operand 153 states and 164 transitions. [2019-05-23 11:22:00,112 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 123 [2019-05-23 11:22:00,112 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:00,112 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:00,112 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:00,113 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:00,113 INFO L146 ILogger]: Analyzing trace with hash -1319323796, now seen corresponding path program 9 times [2019-05-23 11:22:00,113 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:00,113 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:00,114 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,114 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:00,114 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,136 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:00,407 INFO L146 ILogger]: Checked inductivity of 405 backedges. 0 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:00,407 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:00,407 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:00,417 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:02,736 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-05-23 11:22:02,736 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:02,739 INFO L146 ILogger]: Trace formula consists of 304 conjuncts, 11 conjunts are in the unsatisfiable core [2019-05-23 11:22:02,741 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:02,786 INFO L146 ILogger]: Checked inductivity of 405 backedges. 0 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:02,808 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:02,808 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-05-23 11:22:02,808 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:02,809 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:02,809 INFO L146 ILogger]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:02,809 INFO L146 ILogger]: Start difference. First operand 153 states and 164 transitions. Second operand 13 states. [2019-05-23 11:22:03,012 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:03,012 INFO L146 ILogger]: Finished difference Result 368 states and 393 transitions. [2019-05-23 11:22:03,014 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:03,014 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 122 [2019-05-23 11:22:03,014 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:03,015 INFO L146 ILogger]: With dead ends: 368 [2019-05-23 11:22:03,016 INFO L146 ILogger]: Without dead ends: 350 [2019-05-23 11:22:03,016 INFO L146 ILogger]: 0 DeclaredPredicates, 133 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:03,017 INFO L146 ILogger]: Start minimizeSevpa. Operand 350 states. [2019-05-23 11:22:03,021 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 350 to 167. [2019-05-23 11:22:03,021 INFO L146 ILogger]: Start removeUnreachable. Operand 167 states. [2019-05-23 11:22:03,022 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 167 states to 167 states and 179 transitions. [2019-05-23 11:22:03,022 INFO L146 ILogger]: Start accepts. Automaton has 167 states and 179 transitions. Word has length 122 [2019-05-23 11:22:03,026 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:03,026 INFO L146 ILogger]: Abstraction has 167 states and 179 transitions. [2019-05-23 11:22:03,026 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:03,026 INFO L146 ILogger]: Start isEmpty. Operand 167 states and 179 transitions. [2019-05-23 11:22:03,027 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 134 [2019-05-23 11:22:03,027 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:03,028 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:03,028 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:03,028 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:03,028 INFO L146 ILogger]: Analyzing trace with hash -1417785000, now seen corresponding path program 10 times [2019-05-23 11:22:03,028 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:03,029 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:03,029 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,030 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:03,030 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,055 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:03,428 INFO L146 ILogger]: Checked inductivity of 505 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:03,428 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:03,429 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:03,439 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:05,326 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:05,327 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:05,331 INFO L146 ILogger]: Trace formula consists of 332 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:05,333 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:05,373 INFO L146 ILogger]: Checked inductivity of 505 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:05,396 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:05,396 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-05-23 11:22:05,396 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:22:05,397 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:22:05,397 INFO L146 ILogger]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:22:05,397 INFO L146 ILogger]: Start difference. First operand 167 states and 179 transitions. Second operand 14 states. [2019-05-23 11:22:05,622 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:05,623 INFO L146 ILogger]: Finished difference Result 399 states and 426 transitions. [2019-05-23 11:22:05,623 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:22:05,623 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 133 [2019-05-23 11:22:05,624 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:05,626 INFO L146 ILogger]: With dead ends: 399 [2019-05-23 11:22:05,626 INFO L146 ILogger]: Without dead ends: 381 [2019-05-23 11:22:05,627 INFO L146 ILogger]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:22:05,627 INFO L146 ILogger]: Start minimizeSevpa. Operand 381 states. [2019-05-23 11:22:05,631 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 381 to 181. [2019-05-23 11:22:05,631 INFO L146 ILogger]: Start removeUnreachable. Operand 181 states. [2019-05-23 11:22:05,632 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 181 states to 181 states and 194 transitions. [2019-05-23 11:22:05,632 INFO L146 ILogger]: Start accepts. Automaton has 181 states and 194 transitions. Word has length 133 [2019-05-23 11:22:05,633 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:05,633 INFO L146 ILogger]: Abstraction has 181 states and 194 transitions. [2019-05-23 11:22:05,633 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:22:05,633 INFO L146 ILogger]: Start isEmpty. Operand 181 states and 194 transitions. [2019-05-23 11:22:05,634 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 145 [2019-05-23 11:22:05,634 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:05,635 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:05,635 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:05,635 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:05,635 INFO L146 ILogger]: Analyzing trace with hash 106400748, now seen corresponding path program 11 times [2019-05-23 11:22:05,635 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:05,636 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:05,637 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,637 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:05,637 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,660 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:06,460 INFO L146 ILogger]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:06,461 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:06,461 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:06,471 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:10,341 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2019-05-23 11:22:10,342 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:10,345 INFO L146 ILogger]: Trace formula consists of 360 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:22:10,347 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:10,384 INFO L146 ILogger]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:10,407 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:10,407 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-05-23 11:22:10,408 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:22:10,408 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:22:10,408 INFO L146 ILogger]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:10,409 INFO L146 ILogger]: Start difference. First operand 181 states and 194 transitions. Second operand 15 states. [2019-05-23 11:22:10,644 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:10,644 INFO L146 ILogger]: Finished difference Result 430 states and 459 transitions. [2019-05-23 11:22:10,645 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:22:10,645 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 144 [2019-05-23 11:22:10,645 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:10,647 INFO L146 ILogger]: With dead ends: 430 [2019-05-23 11:22:10,647 INFO L146 ILogger]: Without dead ends: 412 [2019-05-23 11:22:10,647 INFO L146 ILogger]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:10,648 INFO L146 ILogger]: Start minimizeSevpa. Operand 412 states. [2019-05-23 11:22:10,653 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 412 to 195. [2019-05-23 11:22:10,653 INFO L146 ILogger]: Start removeUnreachable. Operand 195 states. [2019-05-23 11:22:10,654 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 195 states to 195 states and 209 transitions. [2019-05-23 11:22:10,654 INFO L146 ILogger]: Start accepts. Automaton has 195 states and 209 transitions. Word has length 144 [2019-05-23 11:22:10,654 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:10,654 INFO L146 ILogger]: Abstraction has 195 states and 209 transitions. [2019-05-23 11:22:10,654 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:22:10,655 INFO L146 ILogger]: Start isEmpty. Operand 195 states and 209 transitions. [2019-05-23 11:22:10,656 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 156 [2019-05-23 11:22:10,656 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:10,656 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:10,656 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:10,657 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:10,657 INFO L146 ILogger]: Analyzing trace with hash 1275702488, now seen corresponding path program 12 times [2019-05-23 11:22:10,657 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:10,657 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:10,661 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:10,661 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:10,661 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:10,683 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:11,658 INFO L146 ILogger]: Checked inductivity of 738 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:11,658 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:11,659 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:11,675 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:32,138 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2019-05-23 11:22:32,138 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:32,144 INFO L146 ILogger]: Trace formula consists of 388 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:22:32,146 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:32,191 INFO L146 ILogger]: Checked inductivity of 738 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:32,224 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:32,225 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2019-05-23 11:22:32,225 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:22:32,225 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:22:32,226 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:22:32,226 INFO L146 ILogger]: Start difference. First operand 195 states and 209 transitions. Second operand 16 states. [2019-05-23 11:22:33,114 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:33,115 INFO L146 ILogger]: Finished difference Result 461 states and 492 transitions. [2019-05-23 11:22:33,115 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:33,115 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 155 [2019-05-23 11:22:33,116 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:33,118 INFO L146 ILogger]: With dead ends: 461 [2019-05-23 11:22:33,118 INFO L146 ILogger]: Without dead ends: 443 [2019-05-23 11:22:33,118 INFO L146 ILogger]: 0 DeclaredPredicates, 169 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:22:33,119 INFO L146 ILogger]: Start minimizeSevpa. Operand 443 states. [2019-05-23 11:22:33,124 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 443 to 209. [2019-05-23 11:22:33,124 INFO L146 ILogger]: Start removeUnreachable. Operand 209 states. [2019-05-23 11:22:33,125 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 209 states to 209 states and 224 transitions. [2019-05-23 11:22:33,125 INFO L146 ILogger]: Start accepts. Automaton has 209 states and 224 transitions. Word has length 155 [2019-05-23 11:22:33,125 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:33,126 INFO L146 ILogger]: Abstraction has 209 states and 224 transitions. [2019-05-23 11:22:33,127 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:22:33,127 INFO L146 ILogger]: Start isEmpty. Operand 209 states and 224 transitions. [2019-05-23 11:22:33,129 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 167 [2019-05-23 11:22:33,129 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:33,129 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:33,129 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:33,129 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:33,130 INFO L146 ILogger]: Analyzing trace with hash 797442156, now seen corresponding path program 13 times [2019-05-23 11:22:33,130 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:33,130 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:33,131 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:33,131 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:33,131 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:33,159 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:33,632 INFO L146 ILogger]: Checked inductivity of 871 backedges. 0 proven. 871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:33,632 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:33,632 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:33,642 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:33,708 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:33,710 INFO L146 ILogger]: Trace formula consists of 416 conjuncts, 15 conjunts are in the unsatisfiable core [2019-05-23 11:22:33,713 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:33,810 INFO L146 ILogger]: Checked inductivity of 871 backedges. 0 proven. 871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:33,836 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:33,837 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2019-05-23 11:22:33,837 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:22:33,837 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:22:33,838 INFO L146 ILogger]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:33,838 INFO L146 ILogger]: Start difference. First operand 209 states and 224 transitions. Second operand 17 states. [2019-05-23 11:22:34,223 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:34,223 INFO L146 ILogger]: Finished difference Result 492 states and 525 transitions. [2019-05-23 11:22:34,223 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-05-23 11:22:34,223 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 166 [2019-05-23 11:22:34,224 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:34,225 INFO L146 ILogger]: With dead ends: 492 [2019-05-23 11:22:34,226 INFO L146 ILogger]: Without dead ends: 474 [2019-05-23 11:22:34,226 INFO L146 ILogger]: 0 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:34,227 INFO L146 ILogger]: Start minimizeSevpa. Operand 474 states. [2019-05-23 11:22:34,231 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 474 to 223. [2019-05-23 11:22:34,231 INFO L146 ILogger]: Start removeUnreachable. Operand 223 states. [2019-05-23 11:22:34,232 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 223 states to 223 states and 239 transitions. [2019-05-23 11:22:34,232 INFO L146 ILogger]: Start accepts. Automaton has 223 states and 239 transitions. Word has length 166 [2019-05-23 11:22:34,233 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:34,233 INFO L146 ILogger]: Abstraction has 223 states and 239 transitions. [2019-05-23 11:22:34,233 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:22:34,233 INFO L146 ILogger]: Start isEmpty. Operand 223 states and 239 transitions. [2019-05-23 11:22:34,235 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 178 [2019-05-23 11:22:34,235 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:34,235 INFO L146 ILogger]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:34,235 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:34,235 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:34,236 INFO L146 ILogger]: Analyzing trace with hash -593794984, now seen corresponding path program 14 times [2019-05-23 11:22:34,236 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:34,236 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:34,237 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:34,237 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:34,237 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:34,260 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:34,537 INFO L146 ILogger]: Checked inductivity of 1015 backedges. 0 proven. 1015 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:34,537 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:34,537 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:34,546 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:34,613 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:34,613 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:34,615 INFO L146 ILogger]: Trace formula consists of 444 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:22:34,618 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:34,669 INFO L146 ILogger]: Checked inductivity of 1015 backedges. 0 proven. 1015 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:34,696 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:34,696 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2019-05-23 11:22:34,696 INFO L146 ILogger]: Interpolant automaton has 18 states [2019-05-23 11:22:34,697 INFO L146 ILogger]: Constructing interpolant automaton starting with 18 interpolants. [2019-05-23 11:22:34,697 INFO L146 ILogger]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-05-23 11:22:34,697 INFO L146 ILogger]: Start difference. First operand 223 states and 239 transitions. Second operand 18 states. [2019-05-23 11:22:35,015 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:35,016 INFO L146 ILogger]: Finished difference Result 523 states and 558 transitions. [2019-05-23 11:22:35,016 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-05-23 11:22:35,016 INFO L146 ILogger]: Start accepts. Automaton has 18 states. Word has length 177 [2019-05-23 11:22:35,017 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:35,019 INFO L146 ILogger]: With dead ends: 523 [2019-05-23 11:22:35,019 INFO L146 ILogger]: Without dead ends: 505 [2019-05-23 11:22:35,020 INFO L146 ILogger]: 0 DeclaredPredicates, 193 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-05-23 11:22:35,020 INFO L146 ILogger]: Start minimizeSevpa. Operand 505 states. [2019-05-23 11:22:35,026 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 505 to 237. [2019-05-23 11:22:35,026 INFO L146 ILogger]: Start removeUnreachable. Operand 237 states. [2019-05-23 11:22:35,027 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 237 states to 237 states and 254 transitions. [2019-05-23 11:22:35,027 INFO L146 ILogger]: Start accepts. Automaton has 237 states and 254 transitions. Word has length 177 [2019-05-23 11:22:35,027 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:35,027 INFO L146 ILogger]: Abstraction has 237 states and 254 transitions. [2019-05-23 11:22:35,027 INFO L146 ILogger]: Interpolant automaton has 18 states. [2019-05-23 11:22:35,027 INFO L146 ILogger]: Start isEmpty. Operand 237 states and 254 transitions. [2019-05-23 11:22:35,029 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 189 [2019-05-23 11:22:35,030 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:35,030 INFO L146 ILogger]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:35,030 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:35,030 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:35,030 INFO L146 ILogger]: Analyzing trace with hash -420080404, now seen corresponding path program 15 times [2019-05-23 11:22:35,030 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:35,031 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:35,031 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:35,031 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:35,032 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:35,055 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:35,333 INFO L146 ILogger]: Checked inductivity of 1170 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:35,333 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:35,333 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:35,343 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2