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-crafted/zero_sum_const_m4_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:29:50,226 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:29:50,228 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:29:50,241 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:29:50,241 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:29:50,243 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:29:50,244 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:29:50,246 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:29:50,247 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:29:50,248 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:29:50,249 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:29:50,249 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:29:50,250 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:29:50,252 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:29:50,253 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:29:50,254 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:29:50,255 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:29:50,257 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:29:50,259 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:29:50,260 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:29:50,261 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:29:50,263 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:29:50,265 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:29:50,266 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:29:50,266 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:29:50,267 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:29:50,268 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:29:50,269 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:29:50,269 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:29:50,270 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:29:50,271 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:29:50,272 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:29:50,273 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:29:50,273 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:29:50,274 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:29:50,274 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:29:50,275 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:29:50,276 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:29:50,276 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:29:50,277 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:29:50,292 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:29:50,293 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:29:50,294 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:29:50,294 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:29:50,294 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:29:50,295 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:29:50,295 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:29:50,295 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:29:50,295 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:29:50,295 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:29:50,295 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:29:50,296 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:29:50,296 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:29:50,296 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:29:50,296 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:29:50,296 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:29:50,297 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:29:50,297 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:29:50,297 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:29:50,297 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:29:50,298 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:29:50,298 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:29:50,298 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:29:50,298 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:29:50,298 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:29:50,299 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:29:50,299 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:29:50,299 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:29:50,299 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 11:29:50,330 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:29:50,348 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:29:50,353 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:29:50,355 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:29:50,355 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:29:50,356 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-crafted/zero_sum_const_m4_true-unreach-call.c [2019-05-23 11:29:50,411 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd8d99f3/eb1e256a8d08437ba4bac4b0c85f6752/FLAG9696b4d1e [2019-05-23 11:29:50,844 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:29:50,845 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-crafted/zero_sum_const_m4_true-unreach-call.c [2019-05-23 11:29:50,851 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd8d99f3/eb1e256a8d08437ba4bac4b0c85f6752/FLAG9696b4d1e [2019-05-23 11:29:51,236 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd8d99f3/eb1e256a8d08437ba4bac4b0c85f6752 [2019-05-23 11:29:51,246 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:29:51,248 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:29:51,249 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:29:51,250 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:29:51,255 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:29:51,257 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,260 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29863e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51, skipping insertion in model container [2019-05-23 11:29:51,261 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,269 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:29:51,299 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:29:51,492 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:29:51,496 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:29:51,528 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:29:51,551 INFO L146 ILogger]: Completed translation [2019-05-23 11:29:51,552 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51 WrapperNode [2019-05-23 11:29:51,552 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:29:51,553 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:29:51,553 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:29:51,554 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:29:51,563 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,572 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,603 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:29:51,604 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:29:51,604 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:29:51,604 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:29:51,614 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,614 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,616 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,619 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,725 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,735 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,736 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (1/1) ... [2019-05-23 11:29:51,739 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:29:51,739 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:29:51,739 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:29:51,740 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:29:51,740 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (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 11:29:51,801 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:29:51,801 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:29:51,801 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:29:51,801 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:29:51,801 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:29:51,802 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:29:52,422 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:29:52,423 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:29:52,424 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:29:52 BoogieIcfgContainer [2019-05-23 11:29:52,424 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:29:52,425 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:29:52,425 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:29:52,429 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:29:52,429 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:29:51" (1/3) ... [2019-05-23 11:29:52,430 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5e2158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:29:52, skipping insertion in model container [2019-05-23 11:29:52,430 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:29:51" (2/3) ... [2019-05-23 11:29:52,430 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5e2158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:29:52, skipping insertion in model container [2019-05-23 11:29:52,431 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:29:52" (3/3) ... [2019-05-23 11:29:52,432 INFO L146 ILogger]: Analyzing ICFG zero_sum_const_m4_true-unreach-call.c [2019-05-23 11:29:52,442 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:29:52,450 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:29:52,465 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:29:52,496 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:29:52,497 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:29:52,497 INFO L146 ILogger]: Hoare is true [2019-05-23 11:29:52,497 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:29:52,497 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:29:52,497 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:29:52,497 INFO L146 ILogger]: Difference is false [2019-05-23 11:29:52,498 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:29:52,498 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:29:52,514 INFO L146 ILogger]: Start isEmpty. Operand 94 states. [2019-05-23 11:29:52,523 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 36 [2019-05-23 11:29:52,523 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:52,524 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, 1] [2019-05-23 11:29:52,526 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:52,531 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:52,532 INFO L146 ILogger]: Analyzing trace with hash 1109187440, now seen corresponding path program 1 times [2019-05-23 11:29:52,533 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:52,534 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:52,572 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:52,572 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:29:52,572 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:52,610 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:52,655 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 11:29:52,657 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:29:52,658 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:29:52,662 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:29:52,674 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:29:52,675 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:29:52,677 INFO L146 ILogger]: Start difference. First operand 94 states. Second operand 2 states. [2019-05-23 11:29:52,700 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:52,701 INFO L146 ILogger]: Finished difference Result 170 states and 205 transitions. [2019-05-23 11:29:52,701 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:29:52,702 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 35 [2019-05-23 11:29:52,702 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:52,711 INFO L146 ILogger]: With dead ends: 170 [2019-05-23 11:29:52,712 INFO L146 ILogger]: Without dead ends: 88 [2019-05-23 11:29:52,715 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 11:29:52,732 INFO L146 ILogger]: Start minimizeSevpa. Operand 88 states. [2019-05-23 11:29:52,752 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-05-23 11:29:52,754 INFO L146 ILogger]: Start removeUnreachable. Operand 88 states. [2019-05-23 11:29:52,756 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2019-05-23 11:29:52,757 INFO L146 ILogger]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 35 [2019-05-23 11:29:52,758 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:52,758 INFO L146 ILogger]: Abstraction has 88 states and 96 transitions. [2019-05-23 11:29:52,758 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:29:52,758 INFO L146 ILogger]: Start isEmpty. Operand 88 states and 96 transitions. [2019-05-23 11:29:52,760 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 36 [2019-05-23 11:29:52,760 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:52,760 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, 1] [2019-05-23 11:29:52,760 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:52,761 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:52,761 INFO L146 ILogger]: Analyzing trace with hash 1836950237, now seen corresponding path program 1 times [2019-05-23 11:29:52,761 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:52,761 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:52,762 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:52,763 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:29:52,763 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:52,787 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:53,082 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 11:29:53,083 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:29:53,083 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:29:53,085 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:29:53,086 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:29:53,086 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:29:53,086 INFO L146 ILogger]: Start difference. First operand 88 states and 96 transitions. Second operand 5 states. [2019-05-23 11:29:53,435 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:53,435 INFO L146 ILogger]: Finished difference Result 125 states and 140 transitions. [2019-05-23 11:29:53,436 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:29:53,436 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 35 [2019-05-23 11:29:53,436 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:53,438 INFO L146 ILogger]: With dead ends: 125 [2019-05-23 11:29:53,438 INFO L146 ILogger]: Without dead ends: 119 [2019-05-23 11:29:53,439 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:29:53,440 INFO L146 ILogger]: Start minimizeSevpa. Operand 119 states. [2019-05-23 11:29:53,451 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 119 to 103. [2019-05-23 11:29:53,451 INFO L146 ILogger]: Start removeUnreachable. Operand 103 states. [2019-05-23 11:29:53,456 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2019-05-23 11:29:53,457 INFO L146 ILogger]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 35 [2019-05-23 11:29:53,457 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:53,457 INFO L146 ILogger]: Abstraction has 103 states and 118 transitions. [2019-05-23 11:29:53,458 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:29:53,458 INFO L146 ILogger]: Start isEmpty. Operand 103 states and 118 transitions. [2019-05-23 11:29:53,459 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:29:53,460 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:53,460 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:29:53,460 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:53,461 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:53,461 INFO L146 ILogger]: Analyzing trace with hash 2018973776, now seen corresponding path program 1 times [2019-05-23 11:29:53,461 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:53,461 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:53,462 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:53,462 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:29:53,463 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:53,479 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:53,591 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 11:29:53,591 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:29:53,592 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 11:29:53,609 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:29:53,641 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:53,643 INFO L146 ILogger]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:29:53,650 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:29:53,734 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:29:53,757 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:29:53,758 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2019-05-23 11:29:53,758 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:29:53,759 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:29:53,759 INFO L146 ILogger]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:29:53,760 INFO L146 ILogger]: Start difference. First operand 103 states and 118 transitions. Second operand 7 states. [2019-05-23 11:29:54,333 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-05-23 11:29:54,674 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:54,674 INFO L146 ILogger]: Finished difference Result 227 states and 259 transitions. [2019-05-23 11:29:54,675 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:29:54,675 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 42 [2019-05-23 11:29:54,675 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:54,676 INFO L146 ILogger]: With dead ends: 227 [2019-05-23 11:29:54,677 INFO L146 ILogger]: Without dead ends: 142 [2019-05-23 11:29:54,678 INFO L146 ILogger]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:29:54,679 INFO L146 ILogger]: Start minimizeSevpa. Operand 142 states. [2019-05-23 11:29:54,687 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 142 to 104. [2019-05-23 11:29:54,687 INFO L146 ILogger]: Start removeUnreachable. Operand 104 states. [2019-05-23 11:29:54,688 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-05-23 11:29:54,689 INFO L146 ILogger]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 42 [2019-05-23 11:29:54,689 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:54,689 INFO L146 ILogger]: Abstraction has 104 states and 112 transitions. [2019-05-23 11:29:54,689 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:29:54,689 INFO L146 ILogger]: Start isEmpty. Operand 104 states and 112 transitions. [2019-05-23 11:29:54,692 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 104 [2019-05-23 11:29:54,692 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:54,692 INFO L146 ILogger]: trace histogram [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, 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, 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 11:29:54,692 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:54,693 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:54,693 INFO L146 ILogger]: Analyzing trace with hash 313886532, now seen corresponding path program 1 times [2019-05-23 11:29:54,693 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:54,693 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:54,694 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:54,694 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:29:54,694 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:54,722 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:54,848 INFO L146 ILogger]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-05-23 11:29:54,849 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:29:54,849 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 11:29:54,867 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:29:54,908 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:54,910 INFO L146 ILogger]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:29:54,914 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:29:55,012 INFO L146 ILogger]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-05-23 11:29:55,031 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:29:55,031 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:29:55,033 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:29:55,033 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:29:55,033 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:29:55,034 INFO L146 ILogger]: Start difference. First operand 104 states and 112 transitions. Second operand 9 states. [2019-05-23 11:29:56,134 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:56,134 INFO L146 ILogger]: Finished difference Result 232 states and 248 transitions. [2019-05-23 11:29:56,135 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:29:56,135 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 103 [2019-05-23 11:29:56,136 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:56,138 INFO L146 ILogger]: With dead ends: 232 [2019-05-23 11:29:56,138 INFO L146 ILogger]: Without dead ends: 147 [2019-05-23 11:29:56,140 INFO L146 ILogger]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:29:56,140 INFO L146 ILogger]: Start minimizeSevpa. Operand 147 states. [2019-05-23 11:29:56,149 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 147 to 109. [2019-05-23 11:29:56,149 INFO L146 ILogger]: Start removeUnreachable. Operand 109 states. [2019-05-23 11:29:56,150 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2019-05-23 11:29:56,150 INFO L146 ILogger]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 103 [2019-05-23 11:29:56,150 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:56,151 INFO L146 ILogger]: Abstraction has 109 states and 117 transitions. [2019-05-23 11:29:56,151 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:29:56,151 INFO L146 ILogger]: Start isEmpty. Operand 109 states and 117 transitions. [2019-05-23 11:29:56,154 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 109 [2019-05-23 11:29:56,154 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:56,154 INFO L146 ILogger]: trace histogram [2, 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, 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, 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 11:29:56,155 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:56,155 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:56,155 INFO L146 ILogger]: Analyzing trace with hash 894167568, now seen corresponding path program 2 times [2019-05-23 11:29:56,155 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:56,156 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:56,157 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:56,157 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:29:56,157 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:56,184 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:56,299 INFO L146 ILogger]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-05-23 11:29:56,299 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:29:56,299 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 11:29:56,316 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:29:56,371 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:29:56,371 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:56,372 INFO L146 ILogger]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:29:56,375 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:29:56,581 INFO L146 ILogger]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-05-23 11:29:56,601 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:29:56,602 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:29:56,602 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:29:56,602 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:29:56,603 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:29:56,603 INFO L146 ILogger]: Start difference. First operand 109 states and 117 transitions. Second operand 9 states. [2019-05-23 11:29:56,902 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:56,903 INFO L146 ILogger]: Finished difference Result 227 states and 242 transitions. [2019-05-23 11:29:56,903 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:29:56,903 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 108 [2019-05-23 11:29:56,904 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:56,906 INFO L146 ILogger]: With dead ends: 227 [2019-05-23 11:29:56,906 INFO L146 ILogger]: Without dead ends: 151 [2019-05-23 11:29:56,907 INFO L146 ILogger]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:29:56,908 INFO L146 ILogger]: Start minimizeSevpa. Operand 151 states. [2019-05-23 11:29:56,915 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 151 to 116. [2019-05-23 11:29:56,916 INFO L146 ILogger]: Start removeUnreachable. Operand 116 states. [2019-05-23 11:29:56,917 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 116 states to 116 states and 124 transitions. [2019-05-23 11:29:56,917 INFO L146 ILogger]: Start accepts. Automaton has 116 states and 124 transitions. Word has length 108 [2019-05-23 11:29:56,917 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:56,917 INFO L146 ILogger]: Abstraction has 116 states and 124 transitions. [2019-05-23 11:29:56,917 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:29:56,918 INFO L146 ILogger]: Start isEmpty. Operand 116 states and 124 transitions. [2019-05-23 11:29:56,919 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 116 [2019-05-23 11:29:56,919 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:56,920 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:29:56,920 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:56,920 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:56,920 INFO L146 ILogger]: Analyzing trace with hash -1921493560, now seen corresponding path program 3 times [2019-05-23 11:29:56,921 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:56,921 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:56,922 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:56,922 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:29:56,922 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:56,952 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:57,101 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-05-23 11:29:57,101 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:29:57,101 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 11:29:57,117 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:29:57,173 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:29:57,173 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:57,174 INFO L146 ILogger]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:29:57,183 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:29:57,537 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-05-23 11:29:57,557 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:29:57,557 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:29:57,557 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:29:57,558 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:29:57,558 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:29:57,558 INFO L146 ILogger]: Start difference. First operand 116 states and 124 transitions. Second operand 9 states. [2019-05-23 11:29:57,835 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:57,835 INFO L146 ILogger]: Finished difference Result 220 states and 234 transitions. [2019-05-23 11:29:57,836 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:29:57,836 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 115 [2019-05-23 11:29:57,837 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:57,838 INFO L146 ILogger]: With dead ends: 220 [2019-05-23 11:29:57,838 INFO L146 ILogger]: Without dead ends: 153 [2019-05-23 11:29:57,840 INFO L146 ILogger]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:29:57,840 INFO L146 ILogger]: Start minimizeSevpa. Operand 153 states. [2019-05-23 11:29:57,848 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 153 to 123. [2019-05-23 11:29:57,848 INFO L146 ILogger]: Start removeUnreachable. Operand 123 states. [2019-05-23 11:29:57,849 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 123 states to 123 states and 131 transitions. [2019-05-23 11:29:57,849 INFO L146 ILogger]: Start accepts. Automaton has 123 states and 131 transitions. Word has length 115 [2019-05-23 11:29:57,849 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:57,850 INFO L146 ILogger]: Abstraction has 123 states and 131 transitions. [2019-05-23 11:29:57,850 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:29:57,850 INFO L146 ILogger]: Start isEmpty. Operand 123 states and 131 transitions. [2019-05-23 11:29:57,851 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 123 [2019-05-23 11:29:57,852 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:57,852 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:29:57,852 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:57,852 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:57,853 INFO L146 ILogger]: Analyzing trace with hash -325802615, now seen corresponding path program 4 times [2019-05-23 11:29:57,853 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:57,853 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:57,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:57,854 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:29:57,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:57,871 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:58,016 INFO L146 ILogger]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-05-23 11:29:58,016 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:29:58,017 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 11:29:58,027 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:29:58,055 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:29:58,056 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:58,056 INFO L146 ILogger]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:29:58,060 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:29:58,131 INFO L146 ILogger]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-05-23 11:29:58,152 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:29:58,153 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:29:58,153 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:29:58,153 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:29:58,155 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:29:58,155 INFO L146 ILogger]: Start difference. First operand 123 states and 131 transitions. Second operand 9 states. [2019-05-23 11:29:58,508 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:58,508 INFO L146 ILogger]: Finished difference Result 213 states and 226 transitions. [2019-05-23 11:29:58,508 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:29:58,509 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 122 [2019-05-23 11:29:58,509 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:58,511 INFO L146 ILogger]: With dead ends: 213 [2019-05-23 11:29:58,511 INFO L146 ILogger]: Without dead ends: 155 [2019-05-23 11:29:58,512 INFO L146 ILogger]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:29:58,513 INFO L146 ILogger]: Start minimizeSevpa. Operand 155 states. [2019-05-23 11:29:58,518 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 155 to 130. [2019-05-23 11:29:58,519 INFO L146 ILogger]: Start removeUnreachable. Operand 130 states. [2019-05-23 11:29:58,519 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 130 states to 130 states and 138 transitions. [2019-05-23 11:29:58,520 INFO L146 ILogger]: Start accepts. Automaton has 130 states and 138 transitions. Word has length 122 [2019-05-23 11:29:58,520 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:58,520 INFO L146 ILogger]: Abstraction has 130 states and 138 transitions. [2019-05-23 11:29:58,520 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:29:58,520 INFO L146 ILogger]: Start isEmpty. Operand 130 states and 138 transitions. [2019-05-23 11:29:58,522 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 130 [2019-05-23 11:29:58,522 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:58,522 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1] [2019-05-23 11:29:58,523 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:58,523 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:58,523 INFO L146 ILogger]: Analyzing trace with hash 514069519, now seen corresponding path program 5 times [2019-05-23 11:29:58,523 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:58,523 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:58,524 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:58,524 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:29:58,525 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:58,559 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:58,754 INFO L146 ILogger]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-05-23 11:29:58,754 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:29:58,754 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 11:29:58,763 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:29:58,812 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2019-05-23 11:29:58,812 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:58,813 INFO L146 ILogger]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:29:58,824 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:29:58,892 INFO L146 ILogger]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-05-23 11:29:58,911 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:29:58,911 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:29:58,912 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:29:58,912 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:29:58,912 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:29:58,913 INFO L146 ILogger]: Start difference. First operand 130 states and 138 transitions. Second operand 9 states. [2019-05-23 11:29:59,355 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:59,356 INFO L146 ILogger]: Finished difference Result 190 states and 201 transitions. [2019-05-23 11:29:59,356 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:29:59,356 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 129 [2019-05-23 11:29:59,357 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:59,359 INFO L146 ILogger]: With dead ends: 190 [2019-05-23 11:29:59,359 INFO L146 ILogger]: Without dead ends: 157 [2019-05-23 11:29:59,359 INFO L146 ILogger]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:29:59,360 INFO L146 ILogger]: Start minimizeSevpa. Operand 157 states. [2019-05-23 11:29:59,365 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 157 to 137. [2019-05-23 11:29:59,365 INFO L146 ILogger]: Start removeUnreachable. Operand 137 states. [2019-05-23 11:29:59,366 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 137 states to 137 states and 145 transitions. [2019-05-23 11:29:59,366 INFO L146 ILogger]: Start accepts. Automaton has 137 states and 145 transitions. Word has length 129 [2019-05-23 11:29:59,366 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:59,367 INFO L146 ILogger]: Abstraction has 137 states and 145 transitions. [2019-05-23 11:29:59,367 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:29:59,367 INFO L146 ILogger]: Start isEmpty. Operand 137 states and 145 transitions. [2019-05-23 11:29:59,369 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 137 [2019-05-23 11:29:59,369 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:59,369 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 11:29:59,369 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:59,370 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:59,370 INFO L146 ILogger]: Analyzing trace with hash 1950900795, now seen corresponding path program 6 times [2019-05-23 11:29:59,370 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:59,370 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:59,371 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:59,371 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:29:59,371 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:59,386 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:59,486 INFO L146 ILogger]: Checked inductivity of 55 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-05-23 11:29:59,486 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:29:59,486 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 11:29:59,496 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:29:59,545 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2019-05-23 11:29:59,545 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:29:59,546 INFO L146 ILogger]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:29:59,548 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:29:59,615 INFO L146 ILogger]: Checked inductivity of 55 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-05-23 11:29:59,643 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:29:59,643 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:29:59,643 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:29:59,644 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:29:59,644 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:29:59,644 INFO L146 ILogger]: Start difference. First operand 137 states and 145 transitions. Second operand 9 states. [2019-05-23 11:29:59,923 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:29:59,923 INFO L146 ILogger]: Finished difference Result 183 states and 193 transitions. [2019-05-23 11:29:59,928 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:29:59,929 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 136 [2019-05-23 11:29:59,929 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:29:59,930 INFO L146 ILogger]: With dead ends: 183 [2019-05-23 11:29:59,930 INFO L146 ILogger]: Without dead ends: 159 [2019-05-23 11:29:59,931 INFO L146 ILogger]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:29:59,931 INFO L146 ILogger]: Start minimizeSevpa. Operand 159 states. [2019-05-23 11:29:59,935 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 159 to 144. [2019-05-23 11:29:59,935 INFO L146 ILogger]: Start removeUnreachable. Operand 144 states. [2019-05-23 11:29:59,936 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2019-05-23 11:29:59,936 INFO L146 ILogger]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 136 [2019-05-23 11:29:59,937 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:29:59,937 INFO L146 ILogger]: Abstraction has 144 states and 152 transitions. [2019-05-23 11:29:59,937 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:29:59,937 INFO L146 ILogger]: Start isEmpty. Operand 144 states and 152 transitions. [2019-05-23 11:29:59,939 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 144 [2019-05-23 11:29:59,939 INFO L146 ILogger]: Found error trace [2019-05-23 11:29:59,939 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 11:29:59,940 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:29:59,940 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:29:59,940 INFO L146 ILogger]: Analyzing trace with hash -1507631690, now seen corresponding path program 7 times [2019-05-23 11:29:59,940 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:29:59,940 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:29:59,941 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:59,941 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:29:59,941 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:29:59,955 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:00,415 INFO L146 ILogger]: Checked inductivity of 63 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-05-23 11:30:00,416 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:00,416 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 11:30:00,440 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:00,487 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:00,488 INFO L146 ILogger]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:30:00,492 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:00,801 INFO L146 ILogger]: Checked inductivity of 63 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-05-23 11:30:00,820 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:00,820 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:30:00,821 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:30:00,821 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:30:00,821 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:30:00,821 INFO L146 ILogger]: Start difference. First operand 144 states and 152 transitions. Second operand 9 states. [2019-05-23 11:30:01,083 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:01,083 INFO L146 ILogger]: Finished difference Result 176 states and 185 transitions. [2019-05-23 11:30:01,084 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:30:01,084 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 143 [2019-05-23 11:30:01,085 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:01,086 INFO L146 ILogger]: With dead ends: 176 [2019-05-23 11:30:01,086 INFO L146 ILogger]: Without dead ends: 161 [2019-05-23 11:30:01,087 INFO L146 ILogger]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:30:01,088 INFO L146 ILogger]: Start minimizeSevpa. Operand 161 states. [2019-05-23 11:30:01,091 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 161 to 151. [2019-05-23 11:30:01,091 INFO L146 ILogger]: Start removeUnreachable. Operand 151 states. [2019-05-23 11:30:01,092 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 151 states to 151 states and 159 transitions. [2019-05-23 11:30:01,092 INFO L146 ILogger]: Start accepts. Automaton has 151 states and 159 transitions. Word has length 143 [2019-05-23 11:30:01,093 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:01,093 INFO L146 ILogger]: Abstraction has 151 states and 159 transitions. [2019-05-23 11:30:01,093 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:30:01,093 INFO L146 ILogger]: Start isEmpty. Operand 151 states and 159 transitions. [2019-05-23 11:30:01,094 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 151 [2019-05-23 11:30:01,095 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:01,095 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:01,095 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:01,095 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:01,096 INFO L146 ILogger]: Analyzing trace with hash 994232020, now seen corresponding path program 8 times [2019-05-23 11:30:01,096 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:01,096 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:01,097 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:01,097 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:01,097 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:01,111 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:01,250 INFO L146 ILogger]: Checked inductivity of 71 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-05-23 11:30:01,250 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:01,250 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 11:30:01,261 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:30:01,309 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:30:01,309 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:01,310 INFO L146 ILogger]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:30:01,312 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:01,718 INFO L146 ILogger]: Checked inductivity of 71 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-05-23 11:30:01,737 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:01,737 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-05-23 11:30:01,738 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:30:01,738 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:30:01,738 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:30:01,738 INFO L146 ILogger]: Start difference. First operand 151 states and 159 transitions. Second operand 9 states. [2019-05-23 11:30:02,037 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:02,038 INFO L146 ILogger]: Finished difference Result 169 states and 177 transitions. [2019-05-23 11:30:02,038 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:30:02,038 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 150 [2019-05-23 11:30:02,039 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:02,040 INFO L146 ILogger]: With dead ends: 169 [2019-05-23 11:30:02,040 INFO L146 ILogger]: Without dead ends: 163 [2019-05-23 11:30:02,041 INFO L146 ILogger]: 0 DeclaredPredicates, 158 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:30:02,042 INFO L146 ILogger]: Start minimizeSevpa. Operand 163 states. [2019-05-23 11:30:02,045 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 163 to 158. [2019-05-23 11:30:02,046 INFO L146 ILogger]: Start removeUnreachable. Operand 158 states. [2019-05-23 11:30:02,046 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 158 states to 158 states and 166 transitions. [2019-05-23 11:30:02,047 INFO L146 ILogger]: Start accepts. Automaton has 158 states and 166 transitions. Word has length 150 [2019-05-23 11:30:02,047 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:02,047 INFO L146 ILogger]: Abstraction has 158 states and 166 transitions. [2019-05-23 11:30:02,047 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:30:02,047 INFO L146 ILogger]: Start isEmpty. Operand 158 states and 166 transitions. [2019-05-23 11:30:02,048 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 158 [2019-05-23 11:30:02,048 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:02,049 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:02,049 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:02,049 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:02,049 INFO L146 ILogger]: Analyzing trace with hash 2090540765, now seen corresponding path program 9 times [2019-05-23 11:30:02,049 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:02,050 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:02,050 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:02,050 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:02,051 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:02,104 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:04,057 WARN L146 ILogger]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2019-05-23 11:30:07,695 WARN L146 ILogger]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-05-23 11:30:10,840 INFO L146 ILogger]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:30:10,840 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:10,841 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 11:30:10,850 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:30:10,888 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:30:10,889 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:10,893 WARN L146 ILogger]: Trace formula consists of 253 conjuncts, 130 conjunts are in the unsatisfiable core [2019-05-23 11:30:10,896 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:21,594 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:30:21,597 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:30:21,610 INFO L146 ILogger]: treesize reduction 3, result has 70.0 percent of original size [2019-05-23 11:30:21,611 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 17 [2019-05-23 11:30:21,611 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:30:21,630 INFO L146 ILogger]: treesize reduction 3, result has 81.3 percent of original size [2019-05-23 11:30:21,631 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:30:21,632 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:43, output treesize:3 [2019-05-23 11:30:22,098 INFO L146 ILogger]: Checked inductivity of 79 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:30:22,116 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:22,117 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 69] total 133 [2019-05-23 11:30:22,117 INFO L146 ILogger]: Interpolant automaton has 133 states [2019-05-23 11:30:22,118 INFO L146 ILogger]: Constructing interpolant automaton starting with 133 interpolants. [2019-05-23 11:30:22,126 INFO L146 ILogger]: CoverageRelationStatistics Valid=675, Invalid=16881, Unknown=0, NotChecked=0, Total=17556 [2019-05-23 11:30:22,126 INFO L146 ILogger]: Start difference. First operand 158 states and 166 transitions. Second operand 133 states. [2019-05-23 11:30:25,368 WARN L146 ILogger]: Spent 127.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2019-05-23 11:30:27,588 WARN L146 ILogger]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2019-05-23 11:30:28,737 WARN L146 ILogger]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2019-05-23 11:30:45,504 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:45,505 INFO L146 ILogger]: Finished difference Result 320 states and 335 transitions. [2019-05-23 11:30:45,505 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2019-05-23 11:30:45,505 INFO L146 ILogger]: Start accepts. Automaton has 133 states. Word has length 157 [2019-05-23 11:30:45,506 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:45,507 INFO L146 ILogger]: With dead ends: 320 [2019-05-23 11:30:45,508 INFO L146 ILogger]: Without dead ends: 314 [2019-05-23 11:30:45,517 INFO L146 ILogger]: 0 DeclaredPredicates, 307 GetRequests, 91 SyntacticMatches, 11 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12418 ImplicationChecksByTransitivity, 31.2s TimeCoverageRelationStatistics Valid=1807, Invalid=40835, Unknown=0, NotChecked=0, Total=42642 [2019-05-23 11:30:45,518 INFO L146 ILogger]: Start minimizeSevpa. Operand 314 states. [2019-05-23 11:30:45,525 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 314 to 269. [2019-05-23 11:30:45,525 INFO L146 ILogger]: Start removeUnreachable. Operand 269 states. [2019-05-23 11:30:45,526 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 269 states to 269 states and 284 transitions. [2019-05-23 11:30:45,526 INFO L146 ILogger]: Start accepts. Automaton has 269 states and 284 transitions. Word has length 157 [2019-05-23 11:30:45,527 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:45,527 INFO L146 ILogger]: Abstraction has 269 states and 284 transitions. [2019-05-23 11:30:45,527 INFO L146 ILogger]: Interpolant automaton has 133 states. [2019-05-23 11:30:45,527 INFO L146 ILogger]: Start isEmpty. Operand 269 states and 284 transitions. [2019-05-23 11:30:45,528 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 165 [2019-05-23 11:30:45,528 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:45,529 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:45,529 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:45,529 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:45,529 INFO L146 ILogger]: Analyzing trace with hash -1820636720, now seen corresponding path program 10 times [2019-05-23 11:30:45,529 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:45,529 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:45,530 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:45,531 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:45,531 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:45,545 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:46,656 INFO L146 ILogger]: Checked inductivity of 94 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:46,656 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:46,656 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 11:30:46,665 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:30:46,713 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:30:46,713 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:46,714 INFO L146 ILogger]: Trace formula consists of 262 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:30:46,717 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:46,869 INFO L146 ILogger]: Checked inductivity of 94 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:46,892 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:46,892 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2019-05-23 11:30:46,892 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:30:46,893 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:30:46,893 INFO L146 ILogger]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:30:46,893 INFO L146 ILogger]: Start difference. First operand 269 states and 284 transitions. Second operand 20 states. [2019-05-23 11:30:47,782 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:47,783 INFO L146 ILogger]: Finished difference Result 611 states and 645 transitions. [2019-05-23 11:30:47,783 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:30:47,783 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 164 [2019-05-23 11:30:47,784 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:47,788 INFO L146 ILogger]: With dead ends: 611 [2019-05-23 11:30:47,788 INFO L146 ILogger]: Without dead ends: 534 [2019-05-23 11:30:47,789 INFO L146 ILogger]: 0 DeclaredPredicates, 188 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2019-05-23 11:30:47,790 INFO L146 ILogger]: Start minimizeSevpa. Operand 534 states. [2019-05-23 11:30:47,803 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 534 to 393. [2019-05-23 11:30:47,803 INFO L146 ILogger]: Start removeUnreachable. Operand 393 states. [2019-05-23 11:30:47,804 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 393 states to 393 states and 415 transitions. [2019-05-23 11:30:47,805 INFO L146 ILogger]: Start accepts. Automaton has 393 states and 415 transitions. Word has length 164 [2019-05-23 11:30:47,805 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:47,805 INFO L146 ILogger]: Abstraction has 393 states and 415 transitions. [2019-05-23 11:30:47,805 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 11:30:47,805 INFO L146 ILogger]: Start isEmpty. Operand 393 states and 415 transitions. [2019-05-23 11:30:47,806 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 165 [2019-05-23 11:30:47,806 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:47,807 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:47,807 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:47,807 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:47,807 INFO L146 ILogger]: Analyzing trace with hash -1768269132, now seen corresponding path program 11 times [2019-05-23 11:30:47,807 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:47,807 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:47,808 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:47,808 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:47,808 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:47,822 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:47,992 INFO L146 ILogger]: Checked inductivity of 94 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-05-23 11:30:47,992 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:47,992 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 11:30:48,001 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:30:48,053 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-05-23 11:30:48,053 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:48,054 INFO L146 ILogger]: Trace formula consists of 264 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:30:48,056 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:48,169 INFO L146 ILogger]: Checked inductivity of 94 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-05-23 11:30:48,188 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:48,188 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2019-05-23 11:30:48,189 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:30:48,189 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:30:48,189 INFO L146 ILogger]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:30:48,189 INFO L146 ILogger]: Start difference. First operand 393 states and 415 transitions. Second operand 21 states. [2019-05-23 11:30:49,582 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:49,583 INFO L146 ILogger]: Finished difference Result 557 states and 586 transitions. [2019-05-23 11:30:49,583 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-05-23 11:30:49,583 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 164 [2019-05-23 11:30:49,584 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:49,587 INFO L146 ILogger]: With dead ends: 557 [2019-05-23 11:30:49,587 INFO L146 ILogger]: Without dead ends: 528 [2019-05-23 11:30:49,588 INFO L146 ILogger]: 0 DeclaredPredicates, 200 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 11:30:49,588 INFO L146 ILogger]: Start minimizeSevpa. Operand 528 states. [2019-05-23 11:30:49,603 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 528 to 494. [2019-05-23 11:30:49,603 INFO L146 ILogger]: Start removeUnreachable. Operand 494 states. [2019-05-23 11:30:49,604 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 494 states to 494 states and 522 transitions. [2019-05-23 11:30:49,605 INFO L146 ILogger]: Start accepts. Automaton has 494 states and 522 transitions. Word has length 164 [2019-05-23 11:30:49,605 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:49,605 INFO L146 ILogger]: Abstraction has 494 states and 522 transitions. [2019-05-23 11:30:49,605 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:30:49,605 INFO L146 ILogger]: Start isEmpty. Operand 494 states and 522 transitions. [2019-05-23 11:30:49,607 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 165 [2019-05-23 11:30:49,607 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:49,607 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:49,608 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:49,608 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:49,608 INFO L146 ILogger]: Analyzing trace with hash -1245365381, now seen corresponding path program 12 times [2019-05-23 11:30:49,608 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:49,608 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:49,609 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:49,609 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:49,609 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:49,648 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:51,303 INFO L146 ILogger]: Checked inductivity of 94 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:51,303 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:51,303 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 11:30:51,321 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:30:51,393 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2019-05-23 11:30:51,394 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:51,395 INFO L146 ILogger]: Trace formula consists of 264 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:30:51,397 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:51,536 INFO L146 ILogger]: Checked inductivity of 94 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:51,555 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:51,555 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2019-05-23 11:30:51,556 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:30:51,556 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:30:51,556 INFO L146 ILogger]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:30:51,557 INFO L146 ILogger]: Start difference. First operand 494 states and 522 transitions. Second operand 20 states. [2019-05-23 11:30:52,159 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:52,160 INFO L146 ILogger]: Finished difference Result 721 states and 758 transitions. [2019-05-23 11:30:52,160 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:30:52,160 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 164 [2019-05-23 11:30:52,161 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:52,165 INFO L146 ILogger]: With dead ends: 721 [2019-05-23 11:30:52,165 INFO L146 ILogger]: Without dead ends: 653 [2019-05-23 11:30:52,166 INFO L146 ILogger]: 0 DeclaredPredicates, 188 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2019-05-23 11:30:52,167 INFO L146 ILogger]: Start minimizeSevpa. Operand 653 states. [2019-05-23 11:30:52,182 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 653 to 543. [2019-05-23 11:30:52,183 INFO L146 ILogger]: Start removeUnreachable. Operand 543 states. [2019-05-23 11:30:52,184 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 543 states to 543 states and 573 transitions. [2019-05-23 11:30:52,185 INFO L146 ILogger]: Start accepts. Automaton has 543 states and 573 transitions. Word has length 164 [2019-05-23 11:30:52,185 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:52,185 INFO L146 ILogger]: Abstraction has 543 states and 573 transitions. [2019-05-23 11:30:52,185 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 11:30:52,185 INFO L146 ILogger]: Start isEmpty. Operand 543 states and 573 transitions. [2019-05-23 11:30:52,187 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 165 [2019-05-23 11:30:52,187 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:52,187 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:52,187 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:52,188 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:52,188 INFO L146 ILogger]: Analyzing trace with hash -1757696446, now seen corresponding path program 13 times [2019-05-23 11:30:52,188 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:52,188 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:52,189 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:52,189 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:52,189 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:52,202 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:52,753 INFO L146 ILogger]: Checked inductivity of 94 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:52,754 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:52,754 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 11:30:52,766 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:52,802 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:52,803 INFO L146 ILogger]: Trace formula consists of 264 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:30:52,804 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:52,927 INFO L146 ILogger]: Checked inductivity of 94 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:52,945 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:52,945 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2019-05-23 11:30:52,946 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:30:52,946 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:30:52,946 INFO L146 ILogger]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:30:52,946 INFO L146 ILogger]: Start difference. First operand 543 states and 573 transitions. Second operand 20 states. [2019-05-23 11:30:53,555 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:53,556 INFO L146 ILogger]: Finished difference Result 627 states and 656 transitions. [2019-05-23 11:30:53,556 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:30:53,556 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 164 [2019-05-23 11:30:53,557 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:53,559 INFO L146 ILogger]: With dead ends: 627 [2019-05-23 11:30:53,559 INFO L146 ILogger]: Without dead ends: 566 [2019-05-23 11:30:53,560 INFO L146 ILogger]: 0 DeclaredPredicates, 188 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2019-05-23 11:30:53,561 INFO L146 ILogger]: Start minimizeSevpa. Operand 566 states. [2019-05-23 11:30:53,573 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 566 to 527. [2019-05-23 11:30:53,574 INFO L146 ILogger]: Start removeUnreachable. Operand 527 states. [2019-05-23 11:30:53,575 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 527 states to 527 states and 555 transitions. [2019-05-23 11:30:53,575 INFO L146 ILogger]: Start accepts. Automaton has 527 states and 555 transitions. Word has length 164 [2019-05-23 11:30:53,575 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:53,576 INFO L146 ILogger]: Abstraction has 527 states and 555 transitions. [2019-05-23 11:30:53,576 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 11:30:53,576 INFO L146 ILogger]: Start isEmpty. Operand 527 states and 555 transitions. [2019-05-23 11:30:53,577 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 165 [2019-05-23 11:30:53,577 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:53,577 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:53,578 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:53,578 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:53,578 INFO L146 ILogger]: Analyzing trace with hash 630829833, now seen corresponding path program 14 times [2019-05-23 11:30:53,578 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:53,578 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:53,579 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:53,579 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:53,579 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:53,591 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:53,737 INFO L146 ILogger]: Checked inductivity of 94 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:53,737 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:30:53,737 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 11:30:53,745 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:30:53,783 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:30:53,783 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:53,784 INFO L146 ILogger]: Trace formula consists of 264 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:30:53,786 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:53,957 INFO L146 ILogger]: Checked inductivity of 94 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:30:53,975 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:30:53,975 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2019-05-23 11:30:53,976 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:30:53,976 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:30:53,976 INFO L146 ILogger]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:30:53,976 INFO L146 ILogger]: Start difference. First operand 527 states and 555 transitions. Second operand 20 states.