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_partition_original_true-unreach-call_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:19:10,220 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:19:10,222 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:19:10,234 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:19:10,234 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:19:10,239 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:19:10,240 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:19:10,242 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:19:10,244 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:19:10,244 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:19:10,245 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:19:10,246 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:19:10,247 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:19:10,248 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:19:10,251 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:19:10,252 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:19:10,253 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:19:10,259 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:19:10,261 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:19:10,262 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:19:10,264 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:19:10,265 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:19:10,267 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:19:10,268 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:19:10,268 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:19:10,269 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:19:10,269 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:19:10,270 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:19:10,271 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:19:10,272 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:19:10,272 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:19:10,273 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:19:10,274 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:19:10,275 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:19:10,275 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:19:10,275 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:19:10,276 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:19:10,277 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:19:10,277 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:19:10,278 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:19:10,309 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:19:10,309 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:19:10,311 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:19:10,312 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:19:10,312 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:19:10,312 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:19:10,312 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:19:10,313 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:19:10,314 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:19:10,314 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:19:10,314 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:19:10,314 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:19:10,314 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:19:10,315 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:19:10,315 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:19:10,315 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:19:10,315 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:19:10,315 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:19:10,317 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:19:10,317 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:19:10,317 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:19:10,317 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:19:10,318 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:19:10,318 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:19:10,318 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:19:10,318 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:19:10,319 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:19:10,319 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:19:10,319 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 11:19:10,366 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:19:10,381 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:19:10,385 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:19:10,386 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:19:10,387 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:19:10,388 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/standard_partition_original_true-unreach-call_ground.i [2019-05-23 11:19:10,453 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85a5e382/d15a0b0e61a441aeb08287e49a21e6b3/FLAG624633c9e [2019-05-23 11:19:10,939 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:19:10,939 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/standard_partition_original_true-unreach-call_ground.i [2019-05-23 11:19:10,946 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85a5e382/d15a0b0e61a441aeb08287e49a21e6b3/FLAG624633c9e [2019-05-23 11:19:11,302 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85a5e382/d15a0b0e61a441aeb08287e49a21e6b3 [2019-05-23 11:19:11,313 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:19:11,315 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:19:11,316 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:19:11,316 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:19:11,320 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:19:11,321 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,324 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233139f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11, skipping insertion in model container [2019-05-23 11:19:11,324 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,332 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:19:11,353 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:19:11,571 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:19:11,576 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:19:11,610 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:19:11,643 INFO L146 ILogger]: Completed translation [2019-05-23 11:19:11,644 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11 WrapperNode [2019-05-23 11:19:11,644 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:19:11,645 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:19:11,645 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:19:11,645 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:19:11,656 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,673 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,706 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:19:11,707 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:19:11,707 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:19:11,707 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:19:11,848 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,849 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,852 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,853 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,872 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,881 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,884 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (1/1) ... [2019-05-23 11:19:11,890 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:19:11,891 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:19:11,891 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:19:11,891 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:19:11,892 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (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 11:19:11,946 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:19:11,946 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:19:11,946 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:19:11,947 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:19:11,947 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:19:11,947 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:19:12,461 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:19:12,461 INFO L146 ILogger]: Removed 11 assume(true) statements. [2019-05-23 11:19:12,462 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:19:12 BoogieIcfgContainer [2019-05-23 11:19:12,463 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:19:12,464 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:19:12,464 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:19:12,467 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:19:12,467 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:19:11" (1/3) ... [2019-05-23 11:19:12,468 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3442c925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:19:12, skipping insertion in model container [2019-05-23 11:19:12,469 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:11" (2/3) ... [2019-05-23 11:19:12,469 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3442c925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:19:12, skipping insertion in model container [2019-05-23 11:19:12,469 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:19:12" (3/3) ... [2019-05-23 11:19:12,471 INFO L146 ILogger]: Analyzing ICFG standard_partition_original_true-unreach-call_ground.i [2019-05-23 11:19:12,481 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:19:12,490 INFO L146 ILogger]: Appying trace abstraction to program that has 2 error locations. [2019-05-23 11:19:12,507 INFO L146 ILogger]: Starting to check reachability of 2 error locations. [2019-05-23 11:19:12,539 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:19:12,540 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:19:12,540 INFO L146 ILogger]: Hoare is true [2019-05-23 11:19:12,541 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:19:12,541 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:19:12,541 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:19:12,541 INFO L146 ILogger]: Difference is false [2019-05-23 11:19:12,542 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:19:12,542 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:19:12,560 INFO L146 ILogger]: Start isEmpty. Operand 61 states. [2019-05-23 11:19:12,567 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 21 [2019-05-23 11:19:12,567 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:12,568 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] [2019-05-23 11:19:12,571 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:12,576 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:12,576 INFO L146 ILogger]: Analyzing trace with hash 1454431402, now seen corresponding path program 1 times [2019-05-23 11:19:12,577 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:12,578 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:12,616 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:12,617 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:12,617 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:12,667 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:12,737 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 11:19:12,740 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:19:12,741 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:19:12,744 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:19:12,754 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:19:12,755 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:19:12,757 INFO L146 ILogger]: Start difference. First operand 61 states. Second operand 3 states. [2019-05-23 11:19:12,843 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:12,844 INFO L146 ILogger]: Finished difference Result 112 states and 128 transitions. [2019-05-23 11:19:12,844 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:19:12,846 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 20 [2019-05-23 11:19:12,846 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:12,856 INFO L146 ILogger]: With dead ends: 112 [2019-05-23 11:19:12,856 INFO L146 ILogger]: Without dead ends: 65 [2019-05-23 11:19:12,860 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 11:19:12,879 INFO L146 ILogger]: Start minimizeSevpa. Operand 65 states. [2019-05-23 11:19:12,898 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 65 to 52. [2019-05-23 11:19:12,899 INFO L146 ILogger]: Start removeUnreachable. Operand 52 states. [2019-05-23 11:19:12,901 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2019-05-23 11:19:12,902 INFO L146 ILogger]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 20 [2019-05-23 11:19:12,902 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:12,903 INFO L146 ILogger]: Abstraction has 52 states and 55 transitions. [2019-05-23 11:19:12,903 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:19:12,903 INFO L146 ILogger]: Start isEmpty. Operand 52 states and 55 transitions. [2019-05-23 11:19:12,904 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 30 [2019-05-23 11:19:12,904 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:12,905 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] [2019-05-23 11:19:12,905 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:12,905 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:12,906 INFO L146 ILogger]: Analyzing trace with hash -872069889, now seen corresponding path program 1 times [2019-05-23 11:19:12,906 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:12,906 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:12,907 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:12,908 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:12,908 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:12,944 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:13,049 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 11:19:13,050 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:13,050 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 11:19:13,063 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:13,119 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:13,121 INFO L146 ILogger]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:19:13,129 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:13,205 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 11:19:13,230 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:13,230 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-05-23 11:19:13,232 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:19:13,232 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:19:13,233 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:19:13,234 INFO L146 ILogger]: Start difference. First operand 52 states and 55 transitions. Second operand 5 states. [2019-05-23 11:19:13,506 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:13,506 INFO L146 ILogger]: Finished difference Result 106 states and 113 transitions. [2019-05-23 11:19:13,508 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:19:13,508 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 29 [2019-05-23 11:19:13,508 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:13,510 INFO L146 ILogger]: With dead ends: 106 [2019-05-23 11:19:13,510 INFO L146 ILogger]: Without dead ends: 79 [2019-05-23 11:19:13,513 INFO L146 ILogger]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:19:13,514 INFO L146 ILogger]: Start minimizeSevpa. Operand 79 states. [2019-05-23 11:19:13,524 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 79 to 66. [2019-05-23 11:19:13,525 INFO L146 ILogger]: Start removeUnreachable. Operand 66 states. [2019-05-23 11:19:13,528 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2019-05-23 11:19:13,528 INFO L146 ILogger]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 29 [2019-05-23 11:19:13,529 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:13,530 INFO L146 ILogger]: Abstraction has 66 states and 70 transitions. [2019-05-23 11:19:13,530 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:19:13,530 INFO L146 ILogger]: Start isEmpty. Operand 66 states and 70 transitions. [2019-05-23 11:19:13,531 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:19:13,531 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:13,532 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:19:13,532 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:13,533 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:13,533 INFO L146 ILogger]: Analyzing trace with hash 126381130, now seen corresponding path program 2 times [2019-05-23 11:19:13,533 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:13,533 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:13,534 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:13,535 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:13,536 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:13,574 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:13,674 INFO L146 ILogger]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:13,675 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:13,675 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 11:19:13,694 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:19:13,731 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:19:13,731 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:13,733 INFO L146 ILogger]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:19:13,736 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:13,791 INFO L146 ILogger]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:13,817 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:13,817 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-05-23 11:19:13,818 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:19:13,818 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:19:13,818 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:19:13,819 INFO L146 ILogger]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2019-05-23 11:19:13,977 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:13,977 INFO L146 ILogger]: Finished difference Result 120 states and 128 transitions. [2019-05-23 11:19:13,981 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:19:13,981 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 38 [2019-05-23 11:19:13,982 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:13,983 INFO L146 ILogger]: With dead ends: 120 [2019-05-23 11:19:13,983 INFO L146 ILogger]: Without dead ends: 93 [2019-05-23 11:19:13,984 INFO L146 ILogger]: 0 DeclaredPredicates, 42 GetRequests, 38 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 11:19:13,985 INFO L146 ILogger]: Start minimizeSevpa. Operand 93 states. [2019-05-23 11:19:13,992 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 93 to 80. [2019-05-23 11:19:13,992 INFO L146 ILogger]: Start removeUnreachable. Operand 80 states. [2019-05-23 11:19:13,993 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2019-05-23 11:19:13,994 INFO L146 ILogger]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 38 [2019-05-23 11:19:13,994 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:13,994 INFO L146 ILogger]: Abstraction has 80 states and 85 transitions. [2019-05-23 11:19:13,994 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:19:13,994 INFO L146 ILogger]: Start isEmpty. Operand 80 states and 85 transitions. [2019-05-23 11:19:13,996 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 48 [2019-05-23 11:19:13,996 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:13,996 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:19:13,997 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:13,997 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:13,997 INFO L146 ILogger]: Analyzing trace with hash -786085537, now seen corresponding path program 3 times [2019-05-23 11:19:13,997 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:13,998 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:13,999 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:13,999 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:19:13,999 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:14,018 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:14,136 INFO L146 ILogger]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:14,136 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:14,136 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 11:19:14,152 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:19:14,208 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:19:14,209 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:14,210 INFO L146 ILogger]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:19:14,213 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:14,232 INFO L146 ILogger]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:14,251 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:14,251 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-05-23 11:19:14,251 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:19:14,252 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:19:14,252 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:19:14,252 INFO L146 ILogger]: Start difference. First operand 80 states and 85 transitions. Second operand 7 states. [2019-05-23 11:19:14,465 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:14,465 INFO L146 ILogger]: Finished difference Result 134 states and 143 transitions. [2019-05-23 11:19:14,467 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:19:14,467 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 47 [2019-05-23 11:19:14,467 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:14,469 INFO L146 ILogger]: With dead ends: 134 [2019-05-23 11:19:14,469 INFO L146 ILogger]: Without dead ends: 107 [2019-05-23 11:19:14,470 INFO L146 ILogger]: 0 DeclaredPredicates, 52 GetRequests, 47 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 11:19:14,473 INFO L146 ILogger]: Start minimizeSevpa. Operand 107 states. [2019-05-23 11:19:14,487 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 107 to 94. [2019-05-23 11:19:14,487 INFO L146 ILogger]: Start removeUnreachable. Operand 94 states. [2019-05-23 11:19:14,491 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2019-05-23 11:19:14,494 INFO L146 ILogger]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 47 [2019-05-23 11:19:14,495 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:14,495 INFO L146 ILogger]: Abstraction has 94 states and 100 transitions. [2019-05-23 11:19:14,495 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:19:14,495 INFO L146 ILogger]: Start isEmpty. Operand 94 states and 100 transitions. [2019-05-23 11:19:14,499 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 57 [2019-05-23 11:19:14,499 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:14,500 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:19:14,500 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:14,500 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:14,500 INFO L146 ILogger]: Analyzing trace with hash -2018028566, now seen corresponding path program 4 times [2019-05-23 11:19:14,501 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:14,504 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:14,505 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:14,506 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:19:14,506 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:14,554 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:14,876 INFO L146 ILogger]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:14,876 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:14,876 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 11:19:14,888 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:19:14,921 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:19:14,921 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:14,923 INFO L146 ILogger]: Trace formula consists of 77 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 11:19:14,926 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:15,439 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:15,440 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 73 [2019-05-23 11:19:15,446 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:15,573 WARN L146 ILogger]: Spent 125.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2019-05-23 11:19:15,573 INFO L146 ILogger]: treesize reduction 47, result has 44.7 percent of original size [2019-05-23 11:19:15,575 INFO L146 ILogger]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-05-23 11:19:15,576 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 5 variables, input treesize:41, output treesize:34 [2019-05-23 11:19:16,093 WARN L146 ILogger]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-05-23 11:19:16,094 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:16,094 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 120 [2019-05-23 11:19:16,113 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:16,342 WARN L146 ILogger]: Spent 227.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 31 [2019-05-23 11:19:16,342 INFO L146 ILogger]: treesize reduction 158, result has 29.1 percent of original size [2019-05-23 11:19:16,344 INFO L146 ILogger]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-05-23 11:19:16,344 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 5 variables, input treesize:45, output treesize:39 [2019-05-23 11:19:20,720 WARN L146 ILogger]: Spent 843.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 11 [2019-05-23 11:19:32,964 WARN L146 ILogger]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-05-23 11:19:32,965 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:32,965 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 46 [2019-05-23 11:19:32,967 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:33,004 INFO L146 ILogger]: treesize reduction 24, result has 47.8 percent of original size [2019-05-23 11:19:33,005 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 11:19:33,006 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:11 [2019-05-23 11:19:37,740 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:37,740 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 46 [2019-05-23 11:19:37,742 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:37,764 INFO L146 ILogger]: treesize reduction 24, result has 47.8 percent of original size [2019-05-23 11:19:37,765 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:19:37,766 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:7 [2019-05-23 11:19:37,849 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:19:37,850 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:37,856 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:37,856 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:19:37,857 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-05-23 11:19:37,945 INFO L146 ILogger]: Checked inductivity of 58 backedges. 9 proven. 35 refuted. 14 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:37,969 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:37,970 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16] total 21 [2019-05-23 11:19:37,971 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:19:37,971 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:19:37,972 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=354, Unknown=3, NotChecked=0, Total=420 [2019-05-23 11:19:37,972 INFO L146 ILogger]: Start difference. First operand 94 states and 100 transitions. Second operand 21 states.