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_allDiff2_false-unreach-call_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:14:16,185 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:14:16,187 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:14:16,202 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:14:16,204 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:14:16,205 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:14:16,209 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:14:16,212 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:14:16,215 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:14:16,222 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:14:16,224 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:14:16,224 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:14:16,226 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:14:16,229 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:14:16,231 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:14:16,232 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:14:16,234 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:14:16,239 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:14:16,243 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:14:16,245 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:14:16,246 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:14:16,247 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:14:16,249 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:14:16,252 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:14:16,252 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:14:16,253 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:14:16,254 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:14:16,257 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:14:16,257 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:14:16,258 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:14:16,259 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:14:16,260 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:14:16,262 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:14:16,263 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:14:16,264 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:14:16,264 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:14:16,264 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:14:16,265 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:14:16,266 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:14:16,266 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:14:16,281 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:14:16,281 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:14:16,282 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:14:16,283 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:14:16,283 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:14:16,283 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:14:16,283 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:14:16,284 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:14:16,284 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:14:16,284 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:14:16,284 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:14:16,284 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:14:16,285 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:14:16,285 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:14:16,285 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:14:16,285 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:14:16,285 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:14:16,286 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:14:16,286 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:14:16,286 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:14:16,286 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:14:16,287 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:14:16,287 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:14:16,287 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:14:16,287 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:14:16,288 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:14:16,288 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:14:16,288 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:14:16,288 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 11:14:16,321 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:14:16,341 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:14:16,349 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:14:16,350 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:14:16,351 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:14:16,354 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/standard_allDiff2_false-unreach-call_ground.i [2019-05-23 11:14:16,429 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc0fd827/f825cb5f28404d1ea1b3ea299a05d723/FLAG06ccea075 [2019-05-23 11:14:16,838 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:14:16,839 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/standard_allDiff2_false-unreach-call_ground.i [2019-05-23 11:14:16,845 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc0fd827/f825cb5f28404d1ea1b3ea299a05d723/FLAG06ccea075 [2019-05-23 11:14:17,224 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc0fd827/f825cb5f28404d1ea1b3ea299a05d723 [2019-05-23 11:14:17,235 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:14:17,237 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:14:17,238 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:14:17,238 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:14:17,244 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:14:17,245 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,249 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42409953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17, skipping insertion in model container [2019-05-23 11:14:17,249 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,257 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:14:17,279 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:14:17,481 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:14:17,485 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:14:17,509 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:14:17,527 INFO L146 ILogger]: Completed translation [2019-05-23 11:14:17,527 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17 WrapperNode [2019-05-23 11:14:17,527 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:14:17,528 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:14:17,528 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:14:17,528 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:14:17,537 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,545 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,575 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:14:17,575 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:14:17,575 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:14:17,575 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:14:17,585 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,586 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,587 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,588 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,674 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,680 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,681 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,683 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:14:17,684 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:14:17,684 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:14:17,684 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:14:17,685 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (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 11:14:17,738 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:14:17,739 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:14:17,739 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:14:17,739 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:14:17,739 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:14:18,214 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:14:18,214 INFO L146 ILogger]: Removed 10 assume(true) statements. [2019-05-23 11:14:18,215 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:14:18 BoogieIcfgContainer [2019-05-23 11:14:18,215 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:14:18,216 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:14:18,217 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:14:18,219 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:14:18,220 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:14:17" (1/3) ... [2019-05-23 11:14:18,221 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca0ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:14:18, skipping insertion in model container [2019-05-23 11:14:18,221 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (2/3) ... [2019-05-23 11:14:18,221 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca0ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:14:18, skipping insertion in model container [2019-05-23 11:14:18,221 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:14:18" (3/3) ... [2019-05-23 11:14:18,223 INFO L146 ILogger]: Analyzing ICFG standard_allDiff2_false-unreach-call_ground.i [2019-05-23 11:14:18,232 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:14:18,239 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:14:18,256 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:14:18,289 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:14:18,289 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:14:18,290 INFO L146 ILogger]: Hoare is true [2019-05-23 11:14:18,290 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:14:18,290 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:14:18,290 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:14:18,290 INFO L146 ILogger]: Difference is false [2019-05-23 11:14:18,291 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:14:18,291 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:14:18,308 INFO L146 ILogger]: Start isEmpty. Operand 55 states. [2019-05-23 11:14:18,316 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:14:18,317 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:18,318 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:18,320 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:18,325 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:18,325 INFO L146 ILogger]: Analyzing trace with hash -1169877483, now seen corresponding path program 1 times [2019-05-23 11:14:18,327 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:18,327 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:18,364 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,364 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:18,365 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,397 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:18,434 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 11:14:18,436 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:18,437 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:14:18,441 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:14:18,452 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:14:18,453 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:14:18,455 INFO L146 ILogger]: Start difference. First operand 55 states. Second operand 2 states. [2019-05-23 11:14:18,476 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:18,477 INFO L146 ILogger]: Finished difference Result 102 states and 122 transitions. [2019-05-23 11:14:18,477 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:14:18,478 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 23 [2019-05-23 11:14:18,479 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:18,489 INFO L146 ILogger]: With dead ends: 102 [2019-05-23 11:14:18,490 INFO L146 ILogger]: Without dead ends: 49 [2019-05-23 11:14:18,494 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 11:14:18,511 INFO L146 ILogger]: Start minimizeSevpa. Operand 49 states. [2019-05-23 11:14:18,525 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-05-23 11:14:18,527 INFO L146 ILogger]: Start removeUnreachable. Operand 49 states. [2019-05-23 11:14:18,528 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2019-05-23 11:14:18,530 INFO L146 ILogger]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 23 [2019-05-23 11:14:18,530 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:18,530 INFO L146 ILogger]: Abstraction has 49 states and 53 transitions. [2019-05-23 11:14:18,530 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:14:18,531 INFO L146 ILogger]: Start isEmpty. Operand 49 states and 53 transitions. [2019-05-23 11:14:18,531 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:14:18,532 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:18,532 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:18,532 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:18,533 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:18,533 INFO L146 ILogger]: Analyzing trace with hash 392832241, now seen corresponding path program 1 times [2019-05-23 11:14:18,533 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:18,533 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:18,534 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,534 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:18,535 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,548 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:18,604 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 11:14:18,605 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:18,605 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:14:18,607 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:14:18,607 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:14:18,608 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:14:18,608 INFO L146 ILogger]: Start difference. First operand 49 states and 53 transitions. Second operand 4 states. [2019-05-23 11:14:18,769 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:18,769 INFO L146 ILogger]: Finished difference Result 89 states and 97 transitions. [2019-05-23 11:14:18,771 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:14:18,771 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 23 [2019-05-23 11:14:18,771 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:18,772 INFO L146 ILogger]: With dead ends: 89 [2019-05-23 11:14:18,773 INFO L146 ILogger]: Without dead ends: 66 [2019-05-23 11:14:18,775 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:14:18,776 INFO L146 ILogger]: Start minimizeSevpa. Operand 66 states. [2019-05-23 11:14:18,784 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 66 to 50. [2019-05-23 11:14:18,784 INFO L146 ILogger]: Start removeUnreachable. Operand 50 states. [2019-05-23 11:14:18,786 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2019-05-23 11:14:18,786 INFO L146 ILogger]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 23 [2019-05-23 11:14:18,786 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:18,787 INFO L146 ILogger]: Abstraction has 50 states and 54 transitions. [2019-05-23 11:14:18,788 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:14:18,789 INFO L146 ILogger]: Start isEmpty. Operand 50 states and 54 transitions. [2019-05-23 11:14:18,790 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 31 [2019-05-23 11:14:18,790 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:18,790 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] [2019-05-23 11:14:18,790 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:18,791 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:18,791 INFO L146 ILogger]: Analyzing trace with hash 2049163891, now seen corresponding path program 1 times [2019-05-23 11:14:18,793 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:18,793 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:18,794 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,794 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:18,794 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,820 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:19,141 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 11:14:19,141 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:19,141 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 11:14:19,154 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,183 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:19,185 INFO L146 ILogger]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:14:19,191 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:19,309 INFO L146 ILogger]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:14:19,330 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:14:19,331 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-05-23 11:14:19,331 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:14:19,331 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:14:19,332 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:14:19,332 INFO L146 ILogger]: Start difference. First operand 50 states and 54 transitions. Second operand 9 states. [2019-05-23 11:14:19,799 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:19,800 INFO L146 ILogger]: Finished difference Result 127 states and 142 transitions. [2019-05-23 11:14:19,801 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-05-23 11:14:19,801 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 30 [2019-05-23 11:14:19,801 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:19,803 INFO L146 ILogger]: With dead ends: 127 [2019-05-23 11:14:19,803 INFO L146 ILogger]: Without dead ends: 86 [2019-05-23 11:14:19,804 INFO L146 ILogger]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:14:19,804 INFO L146 ILogger]: Start minimizeSevpa. Operand 86 states. [2019-05-23 11:14:19,813 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 86 to 72. [2019-05-23 11:14:19,813 INFO L146 ILogger]: Start removeUnreachable. Operand 72 states. [2019-05-23 11:14:19,814 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2019-05-23 11:14:19,815 INFO L146 ILogger]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 30 [2019-05-23 11:14:19,815 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:19,815 INFO L146 ILogger]: Abstraction has 72 states and 78 transitions. [2019-05-23 11:14:19,815 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:14:19,815 INFO L146 ILogger]: Start isEmpty. Operand 72 states and 78 transitions. [2019-05-23 11:14:19,817 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 56 [2019-05-23 11:14:19,817 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:19,818 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:14:19,818 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:19,818 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:19,819 INFO L146 ILogger]: Analyzing trace with hash 565681831, now seen corresponding path program 1 times [2019-05-23 11:14:19,819 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:19,819 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:19,820 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,820 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,821 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,854 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:20,354 INFO L146 ILogger]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:14:20,355 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:20,355 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 11:14:20,374 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:20,404 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:20,406 INFO L146 ILogger]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:14:20,409 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:20,650 INFO L146 ILogger]: Checked inductivity of 22 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:14:20,677 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:20,677 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2019-05-23 11:14:20,677 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:14:20,678 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:14:20,678 INFO L146 ILogger]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:14:20,678 INFO L146 ILogger]: Start difference. First operand 72 states and 78 transitions. Second operand 15 states. [2019-05-23 11:14:22,376 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:22,376 INFO L146 ILogger]: Finished difference Result 183 states and 206 transitions. [2019-05-23 11:14:22,377 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-05-23 11:14:22,377 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 55 [2019-05-23 11:14:22,377 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:22,379 INFO L146 ILogger]: With dead ends: 183 [2019-05-23 11:14:22,379 INFO L146 ILogger]: Without dead ends: 142 [2019-05-23 11:14:22,381 INFO L146 ILogger]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=280, Invalid=980, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 11:14:22,382 INFO L146 ILogger]: Start minimizeSevpa. Operand 142 states. [2019-05-23 11:14:22,391 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 142 to 113. [2019-05-23 11:14:22,392 INFO L146 ILogger]: Start removeUnreachable. Operand 113 states. [2019-05-23 11:14:22,393 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2019-05-23 11:14:22,393 INFO L146 ILogger]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 55 [2019-05-23 11:14:22,394 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:22,394 INFO L146 ILogger]: Abstraction has 113 states and 123 transitions. [2019-05-23 11:14:22,394 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:14:22,394 INFO L146 ILogger]: Start isEmpty. Operand 113 states and 123 transitions. [2019-05-23 11:14:22,396 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 90 [2019-05-23 11:14:22,396 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:22,397 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:22,397 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:22,397 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:22,397 INFO L146 ILogger]: Analyzing trace with hash -1473127860, now seen corresponding path program 2 times [2019-05-23 11:14:22,398 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:22,398 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:22,399 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:22,399 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:22,399 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:22,422 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:22,734 INFO L146 ILogger]: Checked inductivity of 129 backedges. 64 proven. 62 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:14:22,734 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:22,734 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 11:14:22,743 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:14:22,774 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:14:22,775 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:22,776 INFO L146 ILogger]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:14:22,782 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:22,973 INFO L146 ILogger]: Checked inductivity of 129 backedges. 34 proven. 83 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-05-23 11:14:22,991 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:22,991 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2019-05-23 11:14:22,992 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 11:14:22,992 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 11:14:22,993 INFO L146 ILogger]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:14:22,993 INFO L146 ILogger]: Start difference. First operand 113 states and 123 transitions. Second operand 25 states. [2019-05-23 11:14:24,300 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:24,300 INFO L146 ILogger]: Finished difference Result 240 states and 264 transitions. [2019-05-23 11:14:24,303 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-05-23 11:14:24,303 INFO L146 ILogger]: Start accepts. Automaton has 25 states. Word has length 89 [2019-05-23 11:14:24,304 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:24,305 INFO L146 ILogger]: With dead ends: 240 [2019-05-23 11:14:24,305 INFO L146 ILogger]: Without dead ends: 182 [2019-05-23 11:14:24,313 INFO L146 ILogger]: 0 DeclaredPredicates, 130 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=545, Invalid=2107, Unknown=0, NotChecked=0, Total=2652 [2019-05-23 11:14:24,314 INFO L146 ILogger]: Start minimizeSevpa. Operand 182 states. [2019-05-23 11:14:24,333 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 182 to 155. [2019-05-23 11:14:24,333 INFO L146 ILogger]: Start removeUnreachable. Operand 155 states. [2019-05-23 11:14:24,337 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 155 states to 155 states and 169 transitions. [2019-05-23 11:14:24,341 INFO L146 ILogger]: Start accepts. Automaton has 155 states and 169 transitions. Word has length 89 [2019-05-23 11:14:24,342 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:24,342 INFO L146 ILogger]: Abstraction has 155 states and 169 transitions. [2019-05-23 11:14:24,342 INFO L146 ILogger]: Interpolant automaton has 25 states. [2019-05-23 11:14:24,342 INFO L146 ILogger]: Start isEmpty. Operand 155 states and 169 transitions. [2019-05-23 11:14:24,345 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 99 [2019-05-23 11:14:24,345 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:24,345 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:24,345 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:24,347 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:24,347 INFO L146 ILogger]: Analyzing trace with hash -4450029, now seen corresponding path program 3 times [2019-05-23 11:14:24,348 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:24,348 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:24,349 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:24,349 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:24,349 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:24,389 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:24,579 INFO L146 ILogger]: Checked inductivity of 177 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-05-23 11:14:24,579 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:24,579 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 11:14:24,589 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:14:24,612 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:14:24,613 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:24,614 INFO L146 ILogger]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2019-05-23 11:14:24,618 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:24,755 INFO L146 ILogger]: Checked inductivity of 177 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-05-23 11:14:24,774 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:24,775 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-05-23 11:14:24,775 INFO L146 ILogger]: Interpolant automaton has 18 states [2019-05-23 11:14:24,776 INFO L146 ILogger]: Constructing interpolant automaton starting with 18 interpolants. [2019-05-23 11:14:24,776 INFO L146 ILogger]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2019-05-23 11:14:24,776 INFO L146 ILogger]: Start difference. First operand 155 states and 169 transitions. Second operand 18 states. [2019-05-23 11:14:24,984 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:24,985 INFO L146 ILogger]: Finished difference Result 262 states and 286 transitions. [2019-05-23 11:14:24,985 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:14:24,985 INFO L146 ILogger]: Start accepts. Automaton has 18 states. Word has length 98 [2019-05-23 11:14:24,986 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:24,987 INFO L146 ILogger]: With dead ends: 262 [2019-05-23 11:14:24,987 INFO L146 ILogger]: Without dead ends: 239 [2019-05-23 11:14:24,988 INFO L146 ILogger]: 0 DeclaredPredicates, 113 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2019-05-23 11:14:24,989 INFO L146 ILogger]: Start minimizeSevpa. Operand 239 states. [2019-05-23 11:14:24,999 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 239 to 198. [2019-05-23 11:14:24,999 INFO L146 ILogger]: Start removeUnreachable. Operand 198 states. [2019-05-23 11:14:25,001 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 198 states to 198 states and 216 transitions. [2019-05-23 11:14:25,001 INFO L146 ILogger]: Start accepts. Automaton has 198 states and 216 transitions. Word has length 98 [2019-05-23 11:14:25,002 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:25,002 INFO L146 ILogger]: Abstraction has 198 states and 216 transitions. [2019-05-23 11:14:25,002 INFO L146 ILogger]: Interpolant automaton has 18 states. [2019-05-23 11:14:25,002 INFO L146 ILogger]: Start isEmpty. Operand 198 states and 216 transitions. [2019-05-23 11:14:25,004 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 133 [2019-05-23 11:14:25,004 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:25,005 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:25,005 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:25,005 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:25,005 INFO L146 ILogger]: Analyzing trace with hash 262858830, now seen corresponding path program 4 times [2019-05-23 11:14:25,005 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:25,006 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:25,006 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:25,007 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:25,007 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:25,024 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:25,232 INFO L146 ILogger]: Checked inductivity of 406 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-05-23 11:14:25,232 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:25,232 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 11:14:25,241 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:14:25,284 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:14:25,284 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:25,285 INFO L146 ILogger]: Trace formula consists of 195 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:14:25,290 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:26,276 INFO L146 ILogger]: Checked inductivity of 406 backedges. 155 proven. 210 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-05-23 11:14:26,295 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:26,296 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2019-05-23 11:14:26,296 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:14:26,297 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:14:26,297 INFO L146 ILogger]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:14:26,297 INFO L146 ILogger]: Start difference. First operand 198 states and 216 transitions. Second operand 27 states. [2019-05-23 11:14:28,407 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:28,407 INFO L146 ILogger]: Finished difference Result 397 states and 437 transitions. [2019-05-23 11:14:28,407 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-05-23 11:14:28,408 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 132 [2019-05-23 11:14:28,408 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:28,411 INFO L146 ILogger]: With dead ends: 397 [2019-05-23 11:14:28,411 INFO L146 ILogger]: Without dead ends: 331 [2019-05-23 11:14:28,415 INFO L146 ILogger]: 0 DeclaredPredicates, 199 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1946 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1079, Invalid=5727, Unknown=0, NotChecked=0, Total=6806 [2019-05-23 11:14:28,416 INFO L146 ILogger]: Start minimizeSevpa. Operand 331 states. [2019-05-23 11:14:28,429 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 331 to 265. [2019-05-23 11:14:28,429 INFO L146 ILogger]: Start removeUnreachable. Operand 265 states. [2019-05-23 11:14:28,431 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 265 states to 265 states and 289 transitions. [2019-05-23 11:14:28,431 INFO L146 ILogger]: Start accepts. Automaton has 265 states and 289 transitions. Word has length 132 [2019-05-23 11:14:28,431 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:28,432 INFO L146 ILogger]: Abstraction has 265 states and 289 transitions. [2019-05-23 11:14:28,432 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:14:28,432 INFO L146 ILogger]: Start isEmpty. Operand 265 states and 289 transitions. [2019-05-23 11:14:28,435 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 185 [2019-05-23 11:14:28,435 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:28,435 INFO L146 ILogger]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:28,436 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:28,436 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:28,436 INFO L146 ILogger]: Analyzing trace with hash -95871405, now seen corresponding path program 5 times [2019-05-23 11:14:28,436 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:28,436 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:28,437 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:28,438 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:28,438 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:28,460 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:28,730 INFO L146 ILogger]: Checked inductivity of 964 backedges. 0 proven. 806 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2019-05-23 11:14:28,730 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:28,730 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 11:14:28,739 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:14:28,801 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2019-05-23 11:14:28,801 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:28,802 INFO L146 ILogger]: Trace formula consists of 253 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 11:14:28,809 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:29,387 INFO L146 ILogger]: Checked inductivity of 964 backedges. 404 proven. 461 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-05-23 11:14:29,407 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:29,407 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22] total 34 [2019-05-23 11:14:29,408 INFO L146 ILogger]: Interpolant automaton has 34 states [2019-05-23 11:14:29,408 INFO L146 ILogger]: Constructing interpolant automaton starting with 34 interpolants. [2019-05-23 11:14:29,409 INFO L146 ILogger]: CoverageRelationStatistics Valid=131, Invalid=991, Unknown=0, NotChecked=0, Total=1122 [2019-05-23 11:14:29,409 INFO L146 ILogger]: Start difference. First operand 265 states and 289 transitions. Second operand 34 states. [2019-05-23 11:14:31,970 WARN L146 ILogger]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-05-23 11:14:33,017 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:33,017 INFO L146 ILogger]: Finished difference Result 500 states and 549 transitions. [2019-05-23 11:14:33,019 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2019-05-23 11:14:33,019 INFO L146 ILogger]: Start accepts. Automaton has 34 states. Word has length 184 [2019-05-23 11:14:33,020 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:33,022 INFO L146 ILogger]: With dead ends: 500 [2019-05-23 11:14:33,023 INFO L146 ILogger]: Without dead ends: 422 [2019-05-23 11:14:33,027 INFO L146 ILogger]: 0 DeclaredPredicates, 294 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4491 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1902, Invalid=12618, Unknown=0, NotChecked=0, Total=14520 [2019-05-23 11:14:33,027 INFO L146 ILogger]: Start minimizeSevpa. Operand 422 states. [2019-05-23 11:14:33,039 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 422 to 344. [2019-05-23 11:14:33,039 INFO L146 ILogger]: Start removeUnreachable. Operand 344 states. [2019-05-23 11:14:33,040 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 344 states to 344 states and 375 transitions. [2019-05-23 11:14:33,041 INFO L146 ILogger]: Start accepts. Automaton has 344 states and 375 transitions. Word has length 184 [2019-05-23 11:14:33,041 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:33,041 INFO L146 ILogger]: Abstraction has 344 states and 375 transitions. [2019-05-23 11:14:33,041 INFO L146 ILogger]: Interpolant automaton has 34 states. [2019-05-23 11:14:33,042 INFO L146 ILogger]: Start isEmpty. Operand 344 states and 375 transitions. [2019-05-23 11:14:33,049 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 246 [2019-05-23 11:14:33,054 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:33,054 INFO L146 ILogger]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:33,055 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:33,055 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:33,055 INFO L146 ILogger]: Analyzing trace with hash -1837554425, now seen corresponding path program 6 times [2019-05-23 11:14:33,055 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:33,055 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:33,056 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:33,056 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:33,056 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:33,106 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:34,072 INFO L146 ILogger]: Checked inductivity of 1941 backedges. 0 proven. 1651 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2019-05-23 11:14:34,072 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:34,072 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 11:14:34,081 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:14:34,132 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2019-05-23 11:14:34,133 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:34,134 INFO L146 ILogger]: Trace formula consists of 264 conjuncts, 15 conjunts are in the unsatisfiable core [2019-05-23 11:14:34,139 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:34,474 INFO L146 ILogger]: Checked inductivity of 1941 backedges. 0 proven. 1651 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2019-05-23 11:14:34,493 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:34,494 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2019-05-23 11:14:34,494 INFO L146 ILogger]: Interpolant automaton has 30 states [2019-05-23 11:14:34,494 INFO L146 ILogger]: Constructing interpolant automaton starting with 30 interpolants. [2019-05-23 11:14:34,495 INFO L146 ILogger]: CoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2019-05-23 11:14:34,495 INFO L146 ILogger]: Start difference. First operand 344 states and 375 transitions. Second operand 30 states. [2019-05-23 11:14:35,139 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:35,139 INFO L146 ILogger]: Finished difference Result 499 states and 544 transitions. [2019-05-23 11:14:35,139 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:14:35,139 INFO L146 ILogger]: Start accepts. Automaton has 30 states. Word has length 245 [2019-05-23 11:14:35,140 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:35,142 INFO L146 ILogger]: With dead ends: 499 [2019-05-23 11:14:35,142 INFO L146 ILogger]: Without dead ends: 476 [2019-05-23 11:14:35,143 INFO L146 ILogger]: 0 DeclaredPredicates, 272 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=457, Invalid=1265, Unknown=0, NotChecked=0, Total=1722 [2019-05-23 11:14:35,144 INFO L146 ILogger]: Start minimizeSevpa. Operand 476 states. [2019-05-23 11:14:35,154 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 476 to 411. [2019-05-23 11:14:35,155 INFO L146 ILogger]: Start removeUnreachable. Operand 411 states. [2019-05-23 11:14:35,156 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 411 states to 411 states and 448 transitions. [2019-05-23 11:14:35,156 INFO L146 ILogger]: Start accepts. Automaton has 411 states and 448 transitions. Word has length 245 [2019-05-23 11:14:35,156 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:35,157 INFO L146 ILogger]: Abstraction has 411 states and 448 transitions. [2019-05-23 11:14:35,157 INFO L146 ILogger]: Interpolant automaton has 30 states. [2019-05-23 11:14:35,157 INFO L146 ILogger]: Start isEmpty. Operand 411 states and 448 transitions. [2019-05-23 11:14:35,161 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 298 [2019-05-23 11:14:35,161 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:35,161 INFO L146 ILogger]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:35,161 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:35,162 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:35,162 INFO L146 ILogger]: Analyzing trace with hash -1180461662, now seen corresponding path program 7 times [2019-05-23 11:14:35,162 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:35,162 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:35,163 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:35,163 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:35,163 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:35,189 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:35,634 INFO L146 ILogger]: Checked inductivity of 3029 backedges. 0 proven. 2644 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2019-05-23 11:14:35,635 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:35,635 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 11:14:35,646 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:35,711 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:35,712 INFO L146 ILogger]: Trace formula consists of 471 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:14:35,717 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:36,298 INFO L146 ILogger]: Checked inductivity of 3029 backedges. 1920 proven. 815 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2019-05-23 11:14:36,317 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:36,317 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25] total 41 [2019-05-23 11:14:36,318 INFO L146 ILogger]: Interpolant automaton has 41 states [2019-05-23 11:14:36,318 INFO L146 ILogger]: Constructing interpolant automaton starting with 41 interpolants. [2019-05-23 11:14:36,320 INFO L146 ILogger]: CoverageRelationStatistics Valid=189, Invalid=1451, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 11:14:36,320 INFO L146 ILogger]: Start difference. First operand 411 states and 448 transitions. Second operand 41 states. [2019-05-23 11:14:40,862 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:40,863 INFO L146 ILogger]: Finished difference Result 698 states and 765 transitions. [2019-05-23 11:14:40,863 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2019-05-23 11:14:40,863 INFO L146 ILogger]: Start accepts. Automaton has 41 states. Word has length 297 [2019-05-23 11:14:40,864 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:40,867 INFO L146 ILogger]: With dead ends: 698 [2019-05-23 11:14:40,868 INFO L146 ILogger]: Without dead ends: 604 [2019-05-23 11:14:40,876 INFO L146 ILogger]: 0 DeclaredPredicates, 436 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8725 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3472, Invalid=22934, Unknown=0, NotChecked=0, Total=26406 [2019-05-23 11:14:40,877 INFO L146 ILogger]: Start minimizeSevpa. Operand 604 states. [2019-05-23 11:14:40,889 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 604 to 514. [2019-05-23 11:14:40,890 INFO L146 ILogger]: Start removeUnreachable. Operand 514 states. [2019-05-23 11:14:40,891 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 514 states to 514 states and 560 transitions. [2019-05-23 11:14:40,891 INFO L146 ILogger]: Start accepts. Automaton has 514 states and 560 transitions. Word has length 297 [2019-05-23 11:14:40,892 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:40,892 INFO L146 ILogger]: Abstraction has 514 states and 560 transitions. [2019-05-23 11:14:40,892 INFO L146 ILogger]: Interpolant automaton has 41 states. [2019-05-23 11:14:40,892 INFO L146 ILogger]: Start isEmpty. Operand 514 states and 560 transitions. [2019-05-23 11:14:40,898 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 377 [2019-05-23 11:14:40,898 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:40,898 INFO L146 ILogger]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:40,899 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:40,899 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:40,899 INFO L146 ILogger]: Analyzing trace with hash 1125027128, now seen corresponding path program 8 times [2019-05-23 11:14:40,899 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:40,899 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:40,900 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:40,900 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:40,900 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:40,926 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:41,551 INFO L146 ILogger]: Checked inductivity of 5220 backedges. 0 proven. 4602 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2019-05-23 11:14:41,552 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:41,552 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 11:14:41,561 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:14:41,645 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:14:41,645 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:41,646 INFO L146 ILogger]: Trace formula consists of 594 conjuncts, 28 conjunts are in the unsatisfiable core [2019-05-23 11:14:41,652 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:42,254 INFO L146 ILogger]: Checked inductivity of 5220 backedges. 1803 proven. 2936 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2019-05-23 11:14:42,273 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:42,273 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 29] total 47 [2019-05-23 11:14:42,274 INFO L146 ILogger]: Interpolant automaton has 47 states [2019-05-23 11:14:42,274 INFO L146 ILogger]: Constructing interpolant automaton starting with 47 interpolants. [2019-05-23 11:14:42,275 INFO L146 ILogger]: CoverageRelationStatistics Valid=231, Invalid=1931, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 11:14:42,275 INFO L146 ILogger]: Start difference. First operand 514 states and 560 transitions. Second operand 47 states. [2019-05-23 11:14:43,897 WARN L146 ILogger]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-05-23 11:14:45,210 WARN L146 ILogger]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-05-23 11:14:46,504 WARN L146 ILogger]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-05-23 11:14:47,909 WARN L146 ILogger]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-05-23 11:14:50,726 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:50,727 INFO L146 ILogger]: Finished difference Result 842 states and 922 transitions. [2019-05-23 11:14:50,727 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2019-05-23 11:14:50,727 INFO L146 ILogger]: Start accepts. Automaton has 47 states. Word has length 376 [2019-05-23 11:14:50,728 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:50,730 INFO L146 ILogger]: With dead ends: 842 [2019-05-23 11:14:50,730 INFO L146 ILogger]: Without dead ends: 731 [2019-05-23 11:14:50,733 INFO L146 ILogger]: 0 DeclaredPredicates, 550 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13860 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=4697, Invalid=35905, Unknown=0, NotChecked=0, Total=40602 [2019-05-23 11:14:50,734 INFO L146 ILogger]: Start minimizeSevpa. Operand 731 states. [2019-05-23 11:14:50,750 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 731 to 629. [2019-05-23 11:14:50,750 INFO L146 ILogger]: Start removeUnreachable. Operand 629 states. [2019-05-23 11:14:50,752 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 629 states to 629 states and 685 transitions. [2019-05-23 11:14:50,752 INFO L146 ILogger]: Start accepts. Automaton has 629 states and 685 transitions. Word has length 376 [2019-05-23 11:14:50,753 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:50,753 INFO L146 ILogger]: Abstraction has 629 states and 685 transitions. [2019-05-23 11:14:50,753 INFO L146 ILogger]: Interpolant automaton has 47 states. [2019-05-23 11:14:50,753 INFO L146 ILogger]: Start isEmpty. Operand 629 states and 685 transitions. [2019-05-23 11:14:50,756 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 465 [2019-05-23 11:14:50,756 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:50,756 INFO L146 ILogger]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 42, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:50,757 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:50,757 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:50,757 INFO L146 ILogger]: Analyzing trace with hash -2059402583, now seen corresponding path program 9 times [2019-05-23 11:14:50,757 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:50,757 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:50,758 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:50,759 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:50,759 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:50,789 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:51,922 INFO L146 ILogger]: Checked inductivity of 8388 backedges. 0 proven. 7464 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2019-05-23 11:14:51,923 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:51,923 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 11:14:51,932 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:14:51,998 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-05-23 11:14:51,998 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:51,999 INFO L146 ILogger]: Trace formula consists of 287 conjuncts, 38 conjunts are in the unsatisfiable core [2019-05-23 11:14:52,006 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:53,010 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:53,011 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2019-05-23 11:14:53,011 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:53,014 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:53,014 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:53,015 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:4 [2019-05-23 11:14:53,939 INFO L146 ILogger]: Checked inductivity of 8388 backedges. 310 proven. 262 refuted. 0 times theorem prover too weak. 7816 trivial. 0 not checked. [2019-05-23 11:14:53,957 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:53,958 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2019-05-23 11:14:53,958 INFO L146 ILogger]: Interpolant automaton has 39 states [2019-05-23 11:14:53,960 INFO L146 ILogger]: Constructing interpolant automaton starting with 39 interpolants. [2019-05-23 11:14:53,960 INFO L146 ILogger]: CoverageRelationStatistics Valid=213, Invalid=1269, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:14:53,960 INFO L146 ILogger]: Start difference. First operand 629 states and 685 transitions. Second operand 39 states. [2019-05-23 11:14:56,269 WARN L146 ILogger]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-05-23 11:15:00,446 WARN L146 ILogger]: Spent 360.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-05-23 11:15:01,101 WARN L146 ILogger]: Spent 154.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2019-05-23 11:15:01,887 WARN L146 ILogger]: Spent 129.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-05-23 11:15:04,580 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:04,580 INFO L146 ILogger]: Finished difference Result 1669 states and 1820 transitions. [2019-05-23 11:15:04,581 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2019-05-23 11:15:04,581 INFO L146 ILogger]: Start accepts. Automaton has 39 states. Word has length 464 [2019-05-23 11:15:04,582 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:04,588 INFO L146 ILogger]: With dead ends: 1669 [2019-05-23 11:15:04,588 INFO L146 ILogger]: Without dead ends: 1646 [2019-05-23 11:15:04,591 INFO L146 ILogger]: 0 DeclaredPredicates, 598 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8048 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=3887, Invalid=19065, Unknown=0, NotChecked=0, Total=22952 [2019-05-23 11:15:04,592 INFO L146 ILogger]: Start minimizeSevpa. Operand 1646 states. [2019-05-23 11:15:04,628 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 1646 to 1410. [2019-05-23 11:15:04,629 INFO L146 ILogger]: Start removeUnreachable. Operand 1410 states. [2019-05-23 11:15:04,631 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1536 transitions. [2019-05-23 11:15:04,632 INFO L146 ILogger]: Start accepts. Automaton has 1410 states and 1536 transitions. Word has length 464 [2019-05-23 11:15:04,632 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:04,632 INFO L146 ILogger]: Abstraction has 1410 states and 1536 transitions. [2019-05-23 11:15:04,633 INFO L146 ILogger]: Interpolant automaton has 39 states. [2019-05-23 11:15:04,633 INFO L146 ILogger]: Start isEmpty. Operand 1410 states and 1536 transitions. [2019-05-23 11:15:04,637 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 536 [2019-05-23 11:15:04,638 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:04,638 INFO L146 ILogger]: trace histogram [49, 49, 49, 49, 49, 49, 48, 48, 48, 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, 1, 1, 1] [2019-05-23 11:15:04,638 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:04,639 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:04,639 INFO L146 ILogger]: Analyzing trace with hash 2050544777, now seen corresponding path program 1 times [2019-05-23 11:15:04,639 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:04,639 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:04,640 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:04,640 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:04,640 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:04,687 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:05,993 INFO L146 ILogger]: Checked inductivity of 11303 backedges. 6812 proven. 715 refuted. 0 times theorem prover too weak. 3776 trivial. 0 not checked. [2019-05-23 11:15:05,993 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:05,993 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 11:15:06,002 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:06,111 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:06,113 INFO L146 ILogger]: Trace formula consists of 843 conjuncts, 32 conjunts are in the unsatisfiable core [2019-05-23 11:15:06,120 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:08,296 INFO L146 ILogger]: Checked inductivity of 11303 backedges. 7879 proven. 2030 refuted. 0 times theorem prover too weak. 1394 trivial. 0 not checked. [2019-05-23 11:15:08,315 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:08,316 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33] total 48 [2019-05-23 11:15:08,316 INFO L146 ILogger]: Interpolant automaton has 48 states [2019-05-23 11:15:08,317 INFO L146 ILogger]: Constructing interpolant automaton starting with 48 interpolants. [2019-05-23 11:15:08,317 INFO L146 ILogger]: CoverageRelationStatistics Valid=277, Invalid=1979, Unknown=0, NotChecked=0, Total=2256 [2019-05-23 11:15:08,317 INFO L146 ILogger]: Start difference. First operand 1410 states and 1536 transitions. Second operand 48 states.