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-examples/standard_init5_true-unreach-call_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:18:03,138 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:18:03,140 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:18:03,151 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:18:03,152 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:18:03,153 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:18:03,154 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:18:03,156 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:18:03,158 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:18:03,159 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:18:03,159 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:18:03,160 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:18:03,161 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:18:03,162 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:18:03,163 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:18:03,164 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:18:03,164 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:18:03,166 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:18:03,169 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:18:03,170 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:18:03,172 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:18:03,173 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:18:03,175 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:18:03,176 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:18:03,179 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:18:03,180 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:18:03,180 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:18:03,185 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:18:03,185 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:18:03,187 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:18:03,188 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:18:03,189 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:18:03,192 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:18:03,193 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:18:03,194 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:18:03,195 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:18:03,195 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:18:03,196 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:18:03,198 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:18:03,199 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:18:03,220 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:18:03,221 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:18:03,222 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:18:03,222 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:18:03,222 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:18:03,222 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:18:03,223 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:18:03,223 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:18:03,224 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:18:03,224 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:18:03,224 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:18:03,224 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:18:03,224 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:18:03,225 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:18:03,225 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:18:03,225 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:18:03,225 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:18:03,225 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:18:03,227 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:18:03,227 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:18:03,227 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:18:03,227 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:18:03,228 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:18:03,228 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:18:03,228 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:18:03,228 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:18:03,228 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:18:03,229 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:18:03,229 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 11:18:03,265 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:18:03,277 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:18:03,281 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:18:03,282 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:18:03,282 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:18:03,283 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/standard_init5_true-unreach-call_ground.i [2019-05-23 11:18:03,342 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98bc14ae5/a34d3b4b49004821864b01b9c425f00a/FLAGaf1527efc [2019-05-23 11:18:03,792 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:18:03,793 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/standard_init5_true-unreach-call_ground.i [2019-05-23 11:18:03,798 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98bc14ae5/a34d3b4b49004821864b01b9c425f00a/FLAGaf1527efc [2019-05-23 11:18:04,153 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98bc14ae5/a34d3b4b49004821864b01b9c425f00a [2019-05-23 11:18:04,163 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:18:04,165 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:18:04,166 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:18:04,166 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:18:04,169 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:18:04,170 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,173 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d4032f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04, skipping insertion in model container [2019-05-23 11:18:04,174 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,181 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:18:04,199 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:18:04,372 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:18:04,377 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:18:04,404 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:18:04,426 INFO L146 ILogger]: Completed translation [2019-05-23 11:18:04,427 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04 WrapperNode [2019-05-23 11:18:04,427 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:18:04,428 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:18:04,428 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:18:04,429 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:18:04,439 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,448 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,477 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:18:04,478 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:18:04,478 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:18:04,478 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:18:04,490 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,490 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,492 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,493 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,506 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,628 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,630 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (1/1) ... [2019-05-23 11:18:04,632 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:18:04,632 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:18:04,633 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:18:04,633 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:18:04,635 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (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 11:18:04,697 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:18:04,697 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:18:04,698 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:18:04,698 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:18:04,698 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:18:04,698 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:18:05,164 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:18:05,164 INFO L146 ILogger]: Removed 12 assume(true) statements. [2019-05-23 11:18:05,165 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:18:05 BoogieIcfgContainer [2019-05-23 11:18:05,165 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:18:05,166 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:18:05,167 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:18:05,170 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:18:05,170 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:18:04" (1/3) ... [2019-05-23 11:18:05,171 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a1bcec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:18:05, skipping insertion in model container [2019-05-23 11:18:05,171 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:04" (2/3) ... [2019-05-23 11:18:05,172 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a1bcec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:18:05, skipping insertion in model container [2019-05-23 11:18:05,172 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:18:05" (3/3) ... [2019-05-23 11:18:05,173 INFO L146 ILogger]: Analyzing ICFG standard_init5_true-unreach-call_ground.i [2019-05-23 11:18:05,183 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:18:05,191 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:18:05,208 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:18:05,238 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:18:05,239 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:18:05,239 INFO L146 ILogger]: Hoare is true [2019-05-23 11:18:05,240 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:18:05,240 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:18:05,240 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:18:05,240 INFO L146 ILogger]: Difference is false [2019-05-23 11:18:05,240 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:18:05,240 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:18:05,257 INFO L146 ILogger]: Start isEmpty. Operand 45 states. [2019-05-23 11:18:05,263 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 25 [2019-05-23 11:18:05,264 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:05,265 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] [2019-05-23 11:18:05,267 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:05,273 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:05,273 INFO L146 ILogger]: Analyzing trace with hash -627582432, now seen corresponding path program 1 times [2019-05-23 11:18:05,275 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:05,275 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:05,315 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:05,315 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:05,316 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:05,352 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:05,388 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 11:18:05,394 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:18:05,394 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:18:05,400 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:18:05,410 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:18:05,411 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:18:05,413 INFO L146 ILogger]: Start difference. First operand 45 states. Second operand 2 states. [2019-05-23 11:18:05,433 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:05,434 INFO L146 ILogger]: Finished difference Result 81 states and 103 transitions. [2019-05-23 11:18:05,434 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:18:05,435 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 24 [2019-05-23 11:18:05,436 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:05,446 INFO L146 ILogger]: With dead ends: 81 [2019-05-23 11:18:05,446 INFO L146 ILogger]: Without dead ends: 39 [2019-05-23 11:18:05,450 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 11:18:05,466 INFO L146 ILogger]: Start minimizeSevpa. Operand 39 states. [2019-05-23 11:18:05,479 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-05-23 11:18:05,481 INFO L146 ILogger]: Start removeUnreachable. Operand 39 states. [2019-05-23 11:18:05,483 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-05-23 11:18:05,486 INFO L146 ILogger]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 24 [2019-05-23 11:18:05,486 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:05,486 INFO L146 ILogger]: Abstraction has 39 states and 44 transitions. [2019-05-23 11:18:05,487 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:18:05,487 INFO L146 ILogger]: Start isEmpty. Operand 39 states and 44 transitions. [2019-05-23 11:18:05,489 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 25 [2019-05-23 11:18:05,490 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:05,490 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] [2019-05-23 11:18:05,490 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:05,491 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:05,492 INFO L146 ILogger]: Analyzing trace with hash 2086977592, now seen corresponding path program 1 times [2019-05-23 11:18:05,492 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:05,492 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:05,493 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:05,493 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:05,493 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:05,510 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:05,538 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 11:18:05,539 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:18:05,539 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:18:05,541 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:18:05,541 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:18:05,542 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:18:05,542 INFO L146 ILogger]: Start difference. First operand 39 states and 44 transitions. Second operand 3 states. [2019-05-23 11:18:05,820 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:05,821 INFO L146 ILogger]: Finished difference Result 84 states and 98 transitions. [2019-05-23 11:18:05,822 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:18:05,822 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 24 [2019-05-23 11:18:05,822 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:05,824 INFO L146 ILogger]: With dead ends: 84 [2019-05-23 11:18:05,825 INFO L146 ILogger]: Without dead ends: 54 [2019-05-23 11:18:05,826 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:18:05,827 INFO L146 ILogger]: Start minimizeSevpa. Operand 54 states. [2019-05-23 11:18:05,835 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 54 to 44. [2019-05-23 11:18:05,835 INFO L146 ILogger]: Start removeUnreachable. Operand 44 states. [2019-05-23 11:18:05,837 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-05-23 11:18:05,837 INFO L146 ILogger]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 24 [2019-05-23 11:18:05,837 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:05,837 INFO L146 ILogger]: Abstraction has 44 states and 49 transitions. [2019-05-23 11:18:05,838 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:18:05,838 INFO L146 ILogger]: Start isEmpty. Operand 44 states and 49 transitions. [2019-05-23 11:18:05,840 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 40 [2019-05-23 11:18:05,841 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:05,841 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] [2019-05-23 11:18:05,841 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:05,842 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:05,843 INFO L146 ILogger]: Analyzing trace with hash 549062398, now seen corresponding path program 1 times [2019-05-23 11:18:05,843 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:05,843 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:05,844 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:05,845 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:05,846 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:05,898 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:05,982 INFO L146 ILogger]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:18:05,982 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:05,982 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 11:18:05,995 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:06,032 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:06,034 INFO L146 ILogger]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:18:06,041 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:06,110 INFO L146 ILogger]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:18:06,138 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:06,138 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-05-23 11:18:06,139 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:18:06,139 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:18:06,140 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:18:06,140 INFO L146 ILogger]: Start difference. First operand 44 states and 49 transitions. Second operand 5 states. [2019-05-23 11:18:06,384 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:06,384 INFO L146 ILogger]: Finished difference Result 103 states and 117 transitions. [2019-05-23 11:18:06,389 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:18:06,389 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 39 [2019-05-23 11:18:06,390 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:06,391 INFO L146 ILogger]: With dead ends: 103 [2019-05-23 11:18:06,391 INFO L146 ILogger]: Without dead ends: 69 [2019-05-23 11:18:06,392 INFO L146 ILogger]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:18:06,394 INFO L146 ILogger]: Start minimizeSevpa. Operand 69 states. [2019-05-23 11:18:06,404 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 69 to 59. [2019-05-23 11:18:06,405 INFO L146 ILogger]: Start removeUnreachable. Operand 59 states. [2019-05-23 11:18:06,408 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-05-23 11:18:06,408 INFO L146 ILogger]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 39 [2019-05-23 11:18:06,408 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:06,409 INFO L146 ILogger]: Abstraction has 59 states and 64 transitions. [2019-05-23 11:18:06,409 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:18:06,409 INFO L146 ILogger]: Start isEmpty. Operand 59 states and 64 transitions. [2019-05-23 11:18:06,412 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 55 [2019-05-23 11:18:06,413 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:06,413 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:18:06,413 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:06,414 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:06,415 INFO L146 ILogger]: Analyzing trace with hash -1650035848, now seen corresponding path program 2 times [2019-05-23 11:18:06,415 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:06,415 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:06,416 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:06,416 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:06,416 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:06,481 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:06,574 INFO L146 ILogger]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-05-23 11:18:06,575 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:06,575 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 11:18:06,591 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:18:06,625 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:18:06,625 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:06,626 INFO L146 ILogger]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:18:06,629 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:06,707 INFO L146 ILogger]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-05-23 11:18:06,736 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:06,737 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-05-23 11:18:06,738 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:18:06,738 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:18:06,739 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:18:06,739 INFO L146 ILogger]: Start difference. First operand 59 states and 64 transitions. Second operand 6 states. [2019-05-23 11:18:07,208 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:07,208 INFO L146 ILogger]: Finished difference Result 130 states and 144 transitions. [2019-05-23 11:18:07,211 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:18:07,211 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 54 [2019-05-23 11:18:07,211 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:07,212 INFO L146 ILogger]: With dead ends: 130 [2019-05-23 11:18:07,212 INFO L146 ILogger]: Without dead ends: 84 [2019-05-23 11:18:07,213 INFO L146 ILogger]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:18:07,214 INFO L146 ILogger]: Start minimizeSevpa. Operand 84 states. [2019-05-23 11:18:07,227 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 84 to 74. [2019-05-23 11:18:07,228 INFO L146 ILogger]: Start removeUnreachable. Operand 74 states. [2019-05-23 11:18:07,231 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2019-05-23 11:18:07,231 INFO L146 ILogger]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 54 [2019-05-23 11:18:07,231 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:07,232 INFO L146 ILogger]: Abstraction has 74 states and 79 transitions. [2019-05-23 11:18:07,232 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:18:07,232 INFO L146 ILogger]: Start isEmpty. Operand 74 states and 79 transitions. [2019-05-23 11:18:07,234 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 70 [2019-05-23 11:18:07,234 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:07,237 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:07,237 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:07,237 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:07,237 INFO L146 ILogger]: Analyzing trace with hash -1545238722, now seen corresponding path program 3 times [2019-05-23 11:18:07,238 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:07,238 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:07,240 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:07,240 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:07,240 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:07,303 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:07,396 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:18:07,396 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:07,396 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 11:18:07,407 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:18:07,508 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:18:07,508 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:07,509 INFO L146 ILogger]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:18:07,513 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:07,530 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:18:07,557 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:07,557 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-05-23 11:18:07,557 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:18:07,558 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:18:07,558 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:18:07,559 INFO L146 ILogger]: Start difference. First operand 74 states and 79 transitions. Second operand 7 states. [2019-05-23 11:18:07,852 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:07,852 INFO L146 ILogger]: Finished difference Result 157 states and 171 transitions. [2019-05-23 11:18:07,853 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:18:07,853 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 69 [2019-05-23 11:18:07,853 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:07,855 INFO L146 ILogger]: With dead ends: 157 [2019-05-23 11:18:07,855 INFO L146 ILogger]: Without dead ends: 99 [2019-05-23 11:18:07,856 INFO L146 ILogger]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:18:07,857 INFO L146 ILogger]: Start minimizeSevpa. Operand 99 states. [2019-05-23 11:18:07,863 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 99 to 89. [2019-05-23 11:18:07,863 INFO L146 ILogger]: Start removeUnreachable. Operand 89 states. [2019-05-23 11:18:07,864 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2019-05-23 11:18:07,865 INFO L146 ILogger]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 69 [2019-05-23 11:18:07,865 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:07,865 INFO L146 ILogger]: Abstraction has 89 states and 94 transitions. [2019-05-23 11:18:07,865 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:18:07,865 INFO L146 ILogger]: Start isEmpty. Operand 89 states and 94 transitions. [2019-05-23 11:18:07,867 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 85 [2019-05-23 11:18:07,867 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:07,868 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:07,868 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:07,868 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:07,868 INFO L146 ILogger]: Analyzing trace with hash -1512089928, now seen corresponding path program 4 times [2019-05-23 11:18:07,869 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:07,869 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:07,870 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:07,870 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:07,870 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:07,900 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:08,009 INFO L146 ILogger]: Checked inductivity of 110 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-05-23 11:18:08,010 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:08,010 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 11:18:08,021 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:18:08,063 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:18:08,063 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:08,064 INFO L146 ILogger]: Trace formula consists of 126 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:18:08,066 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:08,101 INFO L146 ILogger]: Checked inductivity of 110 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-05-23 11:18:08,121 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:08,122 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-05-23 11:18:08,122 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:18:08,122 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:18:08,123 INFO L146 ILogger]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:18:08,123 INFO L146 ILogger]: Start difference. First operand 89 states and 94 transitions. Second operand 8 states. [2019-05-23 11:18:08,686 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:08,686 INFO L146 ILogger]: Finished difference Result 184 states and 198 transitions. [2019-05-23 11:18:08,691 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:18:08,691 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 84 [2019-05-23 11:18:08,692 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:08,693 INFO L146 ILogger]: With dead ends: 184 [2019-05-23 11:18:08,693 INFO L146 ILogger]: Without dead ends: 114 [2019-05-23 11:18:08,694 INFO L146 ILogger]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:18:08,698 INFO L146 ILogger]: Start minimizeSevpa. Operand 114 states. [2019-05-23 11:18:08,707 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 114 to 104. [2019-05-23 11:18:08,707 INFO L146 ILogger]: Start removeUnreachable. Operand 104 states. [2019-05-23 11:18:08,708 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2019-05-23 11:18:08,708 INFO L146 ILogger]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 84 [2019-05-23 11:18:08,709 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:08,709 INFO L146 ILogger]: Abstraction has 104 states and 109 transitions. [2019-05-23 11:18:08,709 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:18:08,709 INFO L146 ILogger]: Start isEmpty. Operand 104 states and 109 transitions. [2019-05-23 11:18:08,711 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 100 [2019-05-23 11:18:08,711 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:08,711 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:08,712 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:08,712 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:08,712 INFO L146 ILogger]: Analyzing trace with hash 1440028542, now seen corresponding path program 5 times [2019-05-23 11:18:08,712 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:08,712 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:08,713 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:08,714 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:08,714 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:08,759 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:08,846 INFO L146 ILogger]: Checked inductivity of 175 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2019-05-23 11:18:08,846 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:08,846 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 11:18:08,862 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:18:11,187 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:18:11,187 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:11,192 INFO L146 ILogger]: Trace formula consists of 146 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:18:11,196 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:11,244 INFO L146 ILogger]: Checked inductivity of 175 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2019-05-23 11:18:11,266 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:11,266 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-05-23 11:18:11,266 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:18:11,266 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:18:11,267 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:18:11,267 INFO L146 ILogger]: Start difference. First operand 104 states and 109 transitions. Second operand 9 states. [2019-05-23 11:18:11,495 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:11,495 INFO L146 ILogger]: Finished difference Result 211 states and 225 transitions. [2019-05-23 11:18:11,501 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:18:11,501 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 99 [2019-05-23 11:18:11,501 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:11,502 INFO L146 ILogger]: With dead ends: 211 [2019-05-23 11:18:11,502 INFO L146 ILogger]: Without dead ends: 129 [2019-05-23 11:18:11,503 INFO L146 ILogger]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:18:11,504 INFO L146 ILogger]: Start minimizeSevpa. Operand 129 states. [2019-05-23 11:18:11,511 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 129 to 119. [2019-05-23 11:18:11,512 INFO L146 ILogger]: Start removeUnreachable. Operand 119 states. [2019-05-23 11:18:11,513 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 119 states to 119 states and 124 transitions. [2019-05-23 11:18:11,513 INFO L146 ILogger]: Start accepts. Automaton has 119 states and 124 transitions. Word has length 99 [2019-05-23 11:18:11,513 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:11,513 INFO L146 ILogger]: Abstraction has 119 states and 124 transitions. [2019-05-23 11:18:11,514 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:18:11,514 INFO L146 ILogger]: Start isEmpty. Operand 119 states and 124 transitions. [2019-05-23 11:18:11,515 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 115 [2019-05-23 11:18:11,516 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:11,516 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:11,516 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:11,516 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:11,517 INFO L146 ILogger]: Analyzing trace with hash 837249528, now seen corresponding path program 6 times [2019-05-23 11:18:11,517 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:11,517 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:11,518 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:11,518 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:11,518 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:11,581 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:11,788 INFO L146 ILogger]: Checked inductivity of 255 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2019-05-23 11:18:11,788 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:11,789 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 11:18:11,803 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:18:12,497 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:18:12,497 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:12,501 INFO L146 ILogger]: Trace formula consists of 166 conjuncts, 33 conjunts are in the unsatisfiable core [2019-05-23 11:18:12,505 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:12,599 INFO L146 ILogger]: Checked inductivity of 255 backedges. 48 proven. 51 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-05-23 11:18:12,622 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:12,622 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 12 [2019-05-23 11:18:12,623 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:18:12,623 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:18:12,623 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:18:12,624 INFO L146 ILogger]: Start difference. First operand 119 states and 124 transitions. Second operand 12 states. [2019-05-23 11:18:12,938 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:12,939 INFO L146 ILogger]: Finished difference Result 243 states and 262 transitions. [2019-05-23 11:18:12,940 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:18:12,940 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 114 [2019-05-23 11:18:12,940 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:12,942 INFO L146 ILogger]: With dead ends: 243 [2019-05-23 11:18:12,942 INFO L146 ILogger]: Without dead ends: 149 [2019-05-23 11:18:12,943 INFO L146 ILogger]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:18:12,943 INFO L146 ILogger]: Start minimizeSevpa. Operand 149 states. [2019-05-23 11:18:12,951 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-05-23 11:18:12,951 INFO L146 ILogger]: Start removeUnreachable. Operand 149 states. [2019-05-23 11:18:12,952 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 149 states to 149 states and 154 transitions. [2019-05-23 11:18:12,952 INFO L146 ILogger]: Start accepts. Automaton has 149 states and 154 transitions. Word has length 114 [2019-05-23 11:18:12,952 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:12,953 INFO L146 ILogger]: Abstraction has 149 states and 154 transitions. [2019-05-23 11:18:12,953 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:18:12,953 INFO L146 ILogger]: Start isEmpty. Operand 149 states and 154 transitions. [2019-05-23 11:18:12,955 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 145 [2019-05-23 11:18:12,955 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:12,955 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:12,956 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:12,956 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:12,956 INFO L146 ILogger]: Analyzing trace with hash -879317704, now seen corresponding path program 7 times [2019-05-23 11:18:12,956 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:12,956 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:12,957 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:12,957 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:12,957 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:13,017 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:13,199 INFO L146 ILogger]: Checked inductivity of 460 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2019-05-23 11:18:13,199 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:13,199 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 11:18:13,209 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:13,240 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:13,241 INFO L146 ILogger]: Trace formula consists of 206 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:18:13,244 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:13,283 INFO L146 ILogger]: Checked inductivity of 460 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2019-05-23 11:18:13,302 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:13,302 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-05-23 11:18:13,303 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:18:13,303 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:18:13,303 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:18:13,303 INFO L146 ILogger]: Start difference. First operand 149 states and 154 transitions. Second operand 12 states. [2019-05-23 11:18:13,727 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:13,737 INFO L146 ILogger]: Finished difference Result 292 states and 306 transitions. [2019-05-23 11:18:13,738 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:18:13,739 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 144 [2019-05-23 11:18:13,739 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:13,740 INFO L146 ILogger]: With dead ends: 292 [2019-05-23 11:18:13,740 INFO L146 ILogger]: Without dead ends: 174 [2019-05-23 11:18:13,741 INFO L146 ILogger]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:18:13,741 INFO L146 ILogger]: Start minimizeSevpa. Operand 174 states. [2019-05-23 11:18:13,748 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 174 to 164. [2019-05-23 11:18:13,749 INFO L146 ILogger]: Start removeUnreachable. Operand 164 states. [2019-05-23 11:18:13,750 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 164 states to 164 states and 169 transitions. [2019-05-23 11:18:13,750 INFO L146 ILogger]: Start accepts. Automaton has 164 states and 169 transitions. Word has length 144 [2019-05-23 11:18:13,750 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:13,750 INFO L146 ILogger]: Abstraction has 164 states and 169 transitions. [2019-05-23 11:18:13,750 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:18:13,751 INFO L146 ILogger]: Start isEmpty. Operand 164 states and 169 transitions. [2019-05-23 11:18:13,753 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 160 [2019-05-23 11:18:13,753 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:13,753 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:13,754 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:13,754 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:13,754 INFO L146 ILogger]: Analyzing trace with hash 572549118, now seen corresponding path program 8 times [2019-05-23 11:18:13,754 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:13,754 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:13,755 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:13,755 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:13,755 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:13,793 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:14,023 INFO L146 ILogger]: Checked inductivity of 585 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2019-05-23 11:18:14,024 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:14,024 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 11:18:14,035 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:18:14,073 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:18:14,074 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:14,075 INFO L146 ILogger]: Trace formula consists of 226 conjuncts, 11 conjunts are in the unsatisfiable core [2019-05-23 11:18:14,077 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:14,119 INFO L146 ILogger]: Checked inductivity of 585 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2019-05-23 11:18:14,139 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:14,139 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-05-23 11:18:14,140 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:18:14,140 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:18:14,140 INFO L146 ILogger]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:18:14,140 INFO L146 ILogger]: Start difference. First operand 164 states and 169 transitions. Second operand 13 states. [2019-05-23 11:18:14,624 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:14,624 INFO L146 ILogger]: Finished difference Result 319 states and 333 transitions. [2019-05-23 11:18:14,625 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:18:14,625 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 159 [2019-05-23 11:18:14,625 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:14,627 INFO L146 ILogger]: With dead ends: 319 [2019-05-23 11:18:14,627 INFO L146 ILogger]: Without dead ends: 189 [2019-05-23 11:18:14,628 INFO L146 ILogger]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:18:14,628 INFO L146 ILogger]: Start minimizeSevpa. Operand 189 states. [2019-05-23 11:18:14,636 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 189 to 179. [2019-05-23 11:18:14,636 INFO L146 ILogger]: Start removeUnreachable. Operand 179 states. [2019-05-23 11:18:14,637 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 179 states to 179 states and 184 transitions. [2019-05-23 11:18:14,637 INFO L146 ILogger]: Start accepts. Automaton has 179 states and 184 transitions. Word has length 159 [2019-05-23 11:18:14,637 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:14,638 INFO L146 ILogger]: Abstraction has 179 states and 184 transitions. [2019-05-23 11:18:14,638 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:18:14,638 INFO L146 ILogger]: Start isEmpty. Operand 179 states and 184 transitions. [2019-05-23 11:18:14,640 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 175 [2019-05-23 11:18:14,640 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:14,641 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:14,641 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:14,641 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:14,641 INFO L146 ILogger]: Analyzing trace with hash 1774526584, now seen corresponding path program 9 times [2019-05-23 11:18:14,641 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:14,642 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:14,642 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:14,642 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:14,643 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:14,673 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:15,427 INFO L146 ILogger]: Checked inductivity of 725 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2019-05-23 11:18:15,428 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:15,428 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 11:18:15,438 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:18:23,859 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-05-23 11:18:23,859 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:23,868 INFO L146 ILogger]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:18:23,870 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:23,909 INFO L146 ILogger]: Checked inductivity of 725 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2019-05-23 11:18:23,948 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:23,949 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-05-23 11:18:23,949 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:18:23,949 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:18:23,950 INFO L146 ILogger]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:18:23,950 INFO L146 ILogger]: Start difference. First operand 179 states and 184 transitions. Second operand 14 states. [2019-05-23 11:18:24,383 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:24,383 INFO L146 ILogger]: Finished difference Result 346 states and 360 transitions. [2019-05-23 11:18:24,384 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:18:24,384 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 174 [2019-05-23 11:18:24,384 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:24,385 INFO L146 ILogger]: With dead ends: 346 [2019-05-23 11:18:24,385 INFO L146 ILogger]: Without dead ends: 204 [2019-05-23 11:18:24,386 INFO L146 ILogger]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:18:24,387 INFO L146 ILogger]: Start minimizeSevpa. Operand 204 states. [2019-05-23 11:18:24,401 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 204 to 194. [2019-05-23 11:18:24,401 INFO L146 ILogger]: Start removeUnreachable. Operand 194 states. [2019-05-23 11:18:24,402 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 194 states to 194 states and 199 transitions. [2019-05-23 11:18:24,402 INFO L146 ILogger]: Start accepts. Automaton has 194 states and 199 transitions. Word has length 174 [2019-05-23 11:18:24,402 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:24,402 INFO L146 ILogger]: Abstraction has 194 states and 199 transitions. [2019-05-23 11:18:24,402 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:18:24,402 INFO L146 ILogger]: Start isEmpty. Operand 194 states and 199 transitions. [2019-05-23 11:18:24,408 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 190 [2019-05-23 11:18:24,408 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:24,408 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:24,409 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:24,413 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:24,413 INFO L146 ILogger]: Analyzing trace with hash -1576261570, now seen corresponding path program 10 times [2019-05-23 11:18:24,413 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:24,414 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:24,414 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:24,415 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:24,415 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:24,455 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:24,659 INFO L146 ILogger]: Checked inductivity of 880 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2019-05-23 11:18:24,659 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:24,660 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 11:18:24,668 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:18:24,711 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:18:24,712 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:24,713 INFO L146 ILogger]: Trace formula consists of 266 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:18:24,715 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:24,745 INFO L146 ILogger]: Checked inductivity of 880 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2019-05-23 11:18:24,778 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:24,778 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-05-23 11:18:24,779 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:18:24,779 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:18:24,779 INFO L146 ILogger]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:18:24,780 INFO L146 ILogger]: Start difference. First operand 194 states and 199 transitions. Second operand 15 states. [2019-05-23 11:18:25,331 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:25,331 INFO L146 ILogger]: Finished difference Result 373 states and 387 transitions. [2019-05-23 11:18:25,332 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:18:25,332 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 189 [2019-05-23 11:18:25,333 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:25,334 INFO L146 ILogger]: With dead ends: 373 [2019-05-23 11:18:25,335 INFO L146 ILogger]: Without dead ends: 219 [2019-05-23 11:18:25,336 INFO L146 ILogger]: 0 DeclaredPredicates, 202 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:18:25,336 INFO L146 ILogger]: Start minimizeSevpa. Operand 219 states. [2019-05-23 11:18:25,341 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 219 to 209. [2019-05-23 11:18:25,341 INFO L146 ILogger]: Start removeUnreachable. Operand 209 states. [2019-05-23 11:18:25,342 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 209 states to 209 states and 214 transitions. [2019-05-23 11:18:25,342 INFO L146 ILogger]: Start accepts. Automaton has 209 states and 214 transitions. Word has length 189 [2019-05-23 11:18:25,343 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:25,343 INFO L146 ILogger]: Abstraction has 209 states and 214 transitions. [2019-05-23 11:18:25,343 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:18:25,343 INFO L146 ILogger]: Start isEmpty. Operand 209 states and 214 transitions. [2019-05-23 11:18:25,345 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 205 [2019-05-23 11:18:25,345 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:25,346 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:25,346 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:25,346 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:25,346 INFO L146 ILogger]: Analyzing trace with hash -263535688, now seen corresponding path program 11 times [2019-05-23 11:18:25,347 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:25,347 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:25,347 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:25,348 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:25,348 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:25,374 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:25,589 INFO L146 ILogger]: Checked inductivity of 1050 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2019-05-23 11:18:25,590 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:25,590 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 11:18:25,600 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1