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_init6_true-unreach-call_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:18:45,003 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:18:45,005 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:18:45,020 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:18:45,020 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:18:45,021 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:18:45,025 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:18:45,028 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:18:45,030 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:18:45,032 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:18:45,034 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:18:45,035 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:18:45,036 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:18:45,037 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:18:45,038 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:18:45,041 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:18:45,042 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:18:45,046 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:18:45,055 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:18:45,057 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:18:45,058 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:18:45,059 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:18:45,065 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:18:45,065 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:18:45,065 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:18:45,067 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:18:45,067 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:18:45,071 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:18:45,071 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:18:45,072 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:18:45,072 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:18:45,073 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:18:45,074 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:18:45,074 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:18:45,075 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:18:45,075 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:18:45,076 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:18:45,076 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:18:45,077 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:18:45,077 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:18:45,101 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:18:45,102 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:18:45,104 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:18:45,104 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:18:45,105 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:18:45,105 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:18:45,105 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:18:45,105 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:18:45,105 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:18:45,106 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:18:45,106 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:18:45,106 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:18:45,107 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:18:45,107 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:18:45,107 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:18:45,107 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:18:45,107 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:18:45,108 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:18:45,109 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:18:45,109 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:18:45,109 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:18:45,110 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:18:45,110 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:18:45,110 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:18:45,110 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:18:45,110 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:18:45,111 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:18:45,111 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:18:45,111 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:18:45,166 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:18:45,178 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:18:45,182 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:18:45,183 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:18:45,184 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:18:45,185 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/standard_init6_true-unreach-call_ground.i [2019-05-23 11:18:45,240 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52260b353/9d5737eb2daf43f58613c93edf08f9c4/FLAGc28a66d2d [2019-05-23 11:18:45,689 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:18:45,690 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/standard_init6_true-unreach-call_ground.i [2019-05-23 11:18:45,696 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52260b353/9d5737eb2daf43f58613c93edf08f9c4/FLAGc28a66d2d [2019-05-23 11:18:46,034 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52260b353/9d5737eb2daf43f58613c93edf08f9c4 [2019-05-23 11:18:46,045 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:18:46,047 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:18:46,048 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:18:46,048 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:18:46,051 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:18:46,052 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,055 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3414ae95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46, skipping insertion in model container [2019-05-23 11:18:46,056 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,064 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:18:46,082 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:18:46,270 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:18:46,274 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:18:46,299 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:18:46,321 INFO L146 ILogger]: Completed translation [2019-05-23 11:18:46,322 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46 WrapperNode [2019-05-23 11:18:46,322 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:18:46,323 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:18:46,324 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:18:46,324 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:18:46,334 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,343 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,372 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:18:46,373 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:18:46,373 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:18:46,373 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:18:46,381 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,382 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,384 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,384 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,390 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,490 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,492 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... [2019-05-23 11:18:46,494 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:18:46,495 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:18:46,495 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:18:46,495 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:18:46,496 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:18:46,549 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:18:46,549 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:18:46,549 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:18:46,549 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:18:46,549 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:18:46,550 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:18:47,045 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:18:47,046 INFO L146 ILogger]: Removed 13 assume(true) statements. [2019-05-23 11:18:47,047 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:18:47 BoogieIcfgContainer [2019-05-23 11:18:47,047 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:18:47,048 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:18:47,048 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:18:47,051 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:18:47,052 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:18:46" (1/3) ... [2019-05-23 11:18:47,053 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123693ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:18:47, skipping insertion in model container [2019-05-23 11:18:47,053 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:18:46" (2/3) ... [2019-05-23 11:18:47,053 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123693ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:18:47, skipping insertion in model container [2019-05-23 11:18:47,054 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:18:47" (3/3) ... [2019-05-23 11:18:47,055 INFO L146 ILogger]: Analyzing ICFG standard_init6_true-unreach-call_ground.i [2019-05-23 11:18:47,066 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:18:47,075 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:18:47,093 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:18:47,130 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:18:47,131 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:18:47,131 INFO L146 ILogger]: Hoare is true [2019-05-23 11:18:47,131 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:18:47,132 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:18:47,132 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:18:47,132 INFO L146 ILogger]: Difference is false [2019-05-23 11:18:47,132 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:18:47,132 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:18:47,147 INFO L146 ILogger]: Start isEmpty. Operand 49 states. [2019-05-23 11:18:47,154 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 27 [2019-05-23 11:18:47,154 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:47,155 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] [2019-05-23 11:18:47,158 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:47,164 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:47,164 INFO L146 ILogger]: Analyzing trace with hash -46102616, now seen corresponding path program 1 times [2019-05-23 11:18:47,166 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:47,167 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:47,212 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:47,213 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:47,213 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:47,246 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:47,291 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:18:47,294 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:18:47,295 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:18:47,298 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:18:47,311 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:18:47,313 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:18:47,315 INFO L146 ILogger]: Start difference. First operand 49 states. Second operand 2 states. [2019-05-23 11:18:47,336 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:47,337 INFO L146 ILogger]: Finished difference Result 89 states and 115 transitions. [2019-05-23 11:18:47,337 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:18:47,338 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 26 [2019-05-23 11:18:47,339 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:47,349 INFO L146 ILogger]: With dead ends: 89 [2019-05-23 11:18:47,350 INFO L146 ILogger]: Without dead ends: 43 [2019-05-23 11:18:47,354 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:18:47,373 INFO L146 ILogger]: Start minimizeSevpa. Operand 43 states. [2019-05-23 11:18:47,391 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-05-23 11:18:47,393 INFO L146 ILogger]: Start removeUnreachable. Operand 43 states. [2019-05-23 11:18:47,394 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-05-23 11:18:47,396 INFO L146 ILogger]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 26 [2019-05-23 11:18:47,396 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:47,396 INFO L146 ILogger]: Abstraction has 43 states and 49 transitions. [2019-05-23 11:18:47,397 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:18:47,397 INFO L146 ILogger]: Start isEmpty. Operand 43 states and 49 transitions. [2019-05-23 11:18:47,399 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 27 [2019-05-23 11:18:47,399 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:47,399 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] [2019-05-23 11:18:47,400 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:47,400 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:47,400 INFO L146 ILogger]: Analyzing trace with hash 1600931776, now seen corresponding path program 1 times [2019-05-23 11:18:47,401 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:47,401 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:47,403 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:47,403 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:47,403 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:47,423 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:47,533 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:18:47,533 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:18:47,534 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:18:47,537 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:18:47,538 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:18:47,539 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:18:47,539 INFO L146 ILogger]: Start difference. First operand 43 states and 49 transitions. Second operand 3 states. [2019-05-23 11:18:48,043 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:48,043 INFO L146 ILogger]: Finished difference Result 95 states and 112 transitions. [2019-05-23 11:18:48,044 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:18:48,044 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 26 [2019-05-23 11:18:48,044 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:48,045 INFO L146 ILogger]: With dead ends: 95 [2019-05-23 11:18:48,046 INFO L146 ILogger]: Without dead ends: 61 [2019-05-23 11:18:48,047 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:18:48,048 INFO L146 ILogger]: Start minimizeSevpa. Operand 61 states. [2019-05-23 11:18:48,054 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 61 to 49. [2019-05-23 11:18:48,055 INFO L146 ILogger]: Start removeUnreachable. Operand 49 states. [2019-05-23 11:18:48,056 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2019-05-23 11:18:48,056 INFO L146 ILogger]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2019-05-23 11:18:48,056 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:48,057 INFO L146 ILogger]: Abstraction has 49 states and 55 transitions. [2019-05-23 11:18:48,057 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:18:48,057 INFO L146 ILogger]: Start isEmpty. Operand 49 states and 55 transitions. [2019-05-23 11:18:48,058 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 45 [2019-05-23 11:18:48,059 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:48,059 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:48,059 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:48,060 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:48,060 INFO L146 ILogger]: Analyzing trace with hash 524065693, now seen corresponding path program 1 times [2019-05-23 11:18:48,060 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:48,060 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:48,062 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:48,062 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:48,062 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:48,096 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:48,153 INFO L146 ILogger]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-05-23 11:18:48,153 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:48,154 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:18:48,172 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:48,219 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:48,221 INFO L146 ILogger]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:18:48,228 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:48,275 INFO L146 ILogger]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-05-23 11:18:48,297 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:48,297 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-05-23 11:18:48,298 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:18:48,298 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:18:48,299 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:18:48,299 INFO L146 ILogger]: Start difference. First operand 49 states and 55 transitions. Second operand 5 states. [2019-05-23 11:18:48,758 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:48,758 INFO L146 ILogger]: Finished difference Result 118 states and 135 transitions. [2019-05-23 11:18:48,761 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:18:48,761 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 44 [2019-05-23 11:18:48,761 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:48,763 INFO L146 ILogger]: With dead ends: 118 [2019-05-23 11:18:48,763 INFO L146 ILogger]: Without dead ends: 79 [2019-05-23 11:18:48,764 INFO L146 ILogger]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:18:48,765 INFO L146 ILogger]: Start minimizeSevpa. Operand 79 states. [2019-05-23 11:18:48,780 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 79 to 67. [2019-05-23 11:18:48,780 INFO L146 ILogger]: Start removeUnreachable. Operand 67 states. [2019-05-23 11:18:48,782 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2019-05-23 11:18:48,782 INFO L146 ILogger]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 44 [2019-05-23 11:18:48,782 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:48,782 INFO L146 ILogger]: Abstraction has 67 states and 73 transitions. [2019-05-23 11:18:48,783 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:18:48,783 INFO L146 ILogger]: Start isEmpty. Operand 67 states and 73 transitions. [2019-05-23 11:18:48,787 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:18:48,787 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:48,788 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:48,788 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:48,788 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:48,789 INFO L146 ILogger]: Analyzing trace with hash 2114137120, now seen corresponding path program 2 times [2019-05-23 11:18:48,789 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:48,789 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:48,790 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:48,790 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:18:48,790 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:48,838 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:48,911 INFO L146 ILogger]: Checked inductivity of 30 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-05-23 11:18:48,911 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:48,911 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:18:48,931 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:18:48,984 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:18:48,984 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:48,985 INFO L146 ILogger]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:18:48,988 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:49,013 INFO L146 ILogger]: Checked inductivity of 30 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-05-23 11:18:49,042 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:49,042 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-05-23 11:18:49,043 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:18:49,043 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:18:49,043 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:18:49,044 INFO L146 ILogger]: Start difference. First operand 67 states and 73 transitions. Second operand 6 states. [2019-05-23 11:18:49,603 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:49,603 INFO L146 ILogger]: Finished difference Result 151 states and 168 transitions. [2019-05-23 11:18:49,603 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:18:49,603 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 62 [2019-05-23 11:18:49,604 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:49,605 INFO L146 ILogger]: With dead ends: 151 [2019-05-23 11:18:49,605 INFO L146 ILogger]: Without dead ends: 97 [2019-05-23 11:18:49,606 INFO L146 ILogger]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:18:49,607 INFO L146 ILogger]: Start minimizeSevpa. Operand 97 states. [2019-05-23 11:18:49,615 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 97 to 85. [2019-05-23 11:18:49,615 INFO L146 ILogger]: Start removeUnreachable. Operand 85 states. [2019-05-23 11:18:49,617 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2019-05-23 11:18:49,617 INFO L146 ILogger]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 62 [2019-05-23 11:18:49,617 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:49,618 INFO L146 ILogger]: Abstraction has 85 states and 91 transitions. [2019-05-23 11:18:49,618 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:18:49,618 INFO L146 ILogger]: Start isEmpty. Operand 85 states and 91 transitions. [2019-05-23 11:18:49,620 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 81 [2019-05-23 11:18:49,620 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:49,620 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:49,621 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:49,621 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:49,621 INFO L146 ILogger]: Analyzing trace with hash 1507707581, now seen corresponding path program 3 times [2019-05-23 11:18:49,621 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:49,621 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:49,622 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:49,622 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:49,623 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:49,663 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:49,755 INFO L146 ILogger]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-05-23 11:18:49,756 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:49,756 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:18:49,766 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:18:49,889 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:18:49,889 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:49,891 INFO L146 ILogger]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:18:49,895 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:49,947 INFO L146 ILogger]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-05-23 11:18:49,967 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:49,967 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-05-23 11:18:49,968 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:18:49,968 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:18:49,969 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:18:49,969 INFO L146 ILogger]: Start difference. First operand 85 states and 91 transitions. Second operand 7 states. [2019-05-23 11:18:50,262 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:50,262 INFO L146 ILogger]: Finished difference Result 184 states and 201 transitions. [2019-05-23 11:18:50,263 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:18:50,263 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 80 [2019-05-23 11:18:50,263 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:50,264 INFO L146 ILogger]: With dead ends: 184 [2019-05-23 11:18:50,264 INFO L146 ILogger]: Without dead ends: 115 [2019-05-23 11:18:50,265 INFO L146 ILogger]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:18:50,266 INFO L146 ILogger]: Start minimizeSevpa. Operand 115 states. [2019-05-23 11:18:50,273 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 115 to 103. [2019-05-23 11:18:50,273 INFO L146 ILogger]: Start removeUnreachable. Operand 103 states. [2019-05-23 11:18:50,274 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 103 states to 103 states and 109 transitions. [2019-05-23 11:18:50,275 INFO L146 ILogger]: Start accepts. Automaton has 103 states and 109 transitions. Word has length 80 [2019-05-23 11:18:50,275 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:50,275 INFO L146 ILogger]: Abstraction has 103 states and 109 transitions. [2019-05-23 11:18:50,275 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:18:50,275 INFO L146 ILogger]: Start isEmpty. Operand 103 states and 109 transitions. [2019-05-23 11:18:50,277 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 99 [2019-05-23 11:18:50,277 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:50,277 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:50,277 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:50,278 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:50,278 INFO L146 ILogger]: Analyzing trace with hash -930805632, now seen corresponding path program 4 times [2019-05-23 11:18:50,278 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:50,278 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:50,279 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:50,279 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:50,280 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:50,318 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:50,449 INFO L146 ILogger]: Checked inductivity of 132 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-05-23 11:18:50,450 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:50,450 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:18:50,460 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:18:50,517 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:18:50,517 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:50,518 INFO L146 ILogger]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:18:50,523 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:50,578 INFO L146 ILogger]: Checked inductivity of 132 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-05-23 11:18:50,597 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:50,598 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-05-23 11:18:50,598 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:18:50,598 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:18:50,598 INFO L146 ILogger]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:18:50,599 INFO L146 ILogger]: Start difference. First operand 103 states and 109 transitions. Second operand 8 states. [2019-05-23 11:18:51,161 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:51,162 INFO L146 ILogger]: Finished difference Result 217 states and 234 transitions. [2019-05-23 11:18:51,162 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:18:51,162 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 98 [2019-05-23 11:18:51,163 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:51,164 INFO L146 ILogger]: With dead ends: 217 [2019-05-23 11:18:51,165 INFO L146 ILogger]: Without dead ends: 133 [2019-05-23 11:18:51,166 INFO L146 ILogger]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:18:51,166 INFO L146 ILogger]: Start minimizeSevpa. Operand 133 states. [2019-05-23 11:18:51,174 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 133 to 121. [2019-05-23 11:18:51,174 INFO L146 ILogger]: Start removeUnreachable. Operand 121 states. [2019-05-23 11:18:51,175 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 121 states to 121 states and 127 transitions. [2019-05-23 11:18:51,176 INFO L146 ILogger]: Start accepts. Automaton has 121 states and 127 transitions. Word has length 98 [2019-05-23 11:18:51,176 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:51,176 INFO L146 ILogger]: Abstraction has 121 states and 127 transitions. [2019-05-23 11:18:51,176 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:18:51,176 INFO L146 ILogger]: Start isEmpty. Operand 121 states and 127 transitions. [2019-05-23 11:18:51,178 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 117 [2019-05-23 11:18:51,178 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:51,178 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:51,179 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:51,179 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:51,179 INFO L146 ILogger]: Analyzing trace with hash -738967075, now seen corresponding path program 5 times [2019-05-23 11:18:51,179 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:51,180 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:51,180 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:51,181 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:51,181 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:51,233 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:51,348 INFO L146 ILogger]: Checked inductivity of 210 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-05-23 11:18:51,349 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:51,349 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:18:51,359 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:18:56,576 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:18:56,576 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:56,583 INFO L146 ILogger]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:18:56,587 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:18:56,622 INFO L146 ILogger]: Checked inductivity of 210 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-05-23 11:18:56,657 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:18:56,657 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-05-23 11:18:56,657 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:18:56,658 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:18:56,658 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:18:56,658 INFO L146 ILogger]: Start difference. First operand 121 states and 127 transitions. Second operand 9 states. [2019-05-23 11:18:57,010 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:18:57,010 INFO L146 ILogger]: Finished difference Result 250 states and 267 transitions. [2019-05-23 11:18:57,010 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:18:57,011 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 116 [2019-05-23 11:18:57,011 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:18:57,012 INFO L146 ILogger]: With dead ends: 250 [2019-05-23 11:18:57,013 INFO L146 ILogger]: Without dead ends: 151 [2019-05-23 11:18:57,017 INFO L146 ILogger]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:18:57,018 INFO L146 ILogger]: Start minimizeSevpa. Operand 151 states. [2019-05-23 11:18:57,028 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 151 to 139. [2019-05-23 11:18:57,029 INFO L146 ILogger]: Start removeUnreachable. Operand 139 states. [2019-05-23 11:18:57,030 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 139 states to 139 states and 145 transitions. [2019-05-23 11:18:57,030 INFO L146 ILogger]: Start accepts. Automaton has 139 states and 145 transitions. Word has length 116 [2019-05-23 11:18:57,030 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:18:57,030 INFO L146 ILogger]: Abstraction has 139 states and 145 transitions. [2019-05-23 11:18:57,031 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:18:57,032 INFO L146 ILogger]: Start isEmpty. Operand 139 states and 145 transitions. [2019-05-23 11:18:57,034 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 135 [2019-05-23 11:18:57,034 INFO L146 ILogger]: Found error trace [2019-05-23 11:18:57,035 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:18:57,035 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:18:57,035 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:18:57,035 INFO L146 ILogger]: Analyzing trace with hash -1950622496, now seen corresponding path program 6 times [2019-05-23 11:18:57,036 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:18:57,036 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:18:57,037 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:57,037 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:18:57,037 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:18:57,076 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:18:57,270 INFO L146 ILogger]: Checked inductivity of 306 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-05-23 11:18:57,271 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:18:57,271 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:18:57,286 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:19:00,318 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:19:00,318 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:00,323 INFO L146 ILogger]: Trace formula consists of 193 conjuncts, 17 conjunts are in the unsatisfiable core [2019-05-23 11:19:00,329 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:00,396 INFO L146 ILogger]: Checked inductivity of 306 backedges. 48 proven. 51 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2019-05-23 11:19:00,417 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:00,417 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 12 [2019-05-23 11:19:00,418 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:19:00,418 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:19:00,418 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:19:00,419 INFO L146 ILogger]: Start difference. First operand 139 states and 145 transitions. Second operand 12 states. [2019-05-23 11:19:00,883 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:00,884 INFO L146 ILogger]: Finished difference Result 289 states and 312 transitions. [2019-05-23 11:19:00,885 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:19:00,885 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 134 [2019-05-23 11:19:00,886 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:00,887 INFO L146 ILogger]: With dead ends: 289 [2019-05-23 11:19:00,887 INFO L146 ILogger]: Without dead ends: 175 [2019-05-23 11:19:00,887 INFO L146 ILogger]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:19:00,888 INFO L146 ILogger]: Start minimizeSevpa. Operand 175 states. [2019-05-23 11:19:00,896 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-05-23 11:19:00,896 INFO L146 ILogger]: Start removeUnreachable. Operand 175 states. [2019-05-23 11:19:00,897 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 175 states to 175 states and 181 transitions. [2019-05-23 11:19:00,897 INFO L146 ILogger]: Start accepts. Automaton has 175 states and 181 transitions. Word has length 134 [2019-05-23 11:19:00,897 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:00,897 INFO L146 ILogger]: Abstraction has 175 states and 181 transitions. [2019-05-23 11:19:00,898 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:19:00,898 INFO L146 ILogger]: Start isEmpty. Operand 175 states and 181 transitions. [2019-05-23 11:19:00,900 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 171 [2019-05-23 11:19:00,900 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:00,900 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:00,901 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:00,901 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:00,901 INFO L146 ILogger]: Analyzing trace with hash -1376671424, now seen corresponding path program 7 times [2019-05-23 11:19:00,901 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:00,902 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:00,902 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:00,903 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:19:00,903 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:00,942 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:01,210 INFO L146 ILogger]: Checked inductivity of 552 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2019-05-23 11:19:01,210 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:01,210 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 11:19:01,219 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:01,267 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:01,268 INFO L146 ILogger]: Trace formula consists of 241 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:19:01,272 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:01,320 INFO L146 ILogger]: Checked inductivity of 552 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2019-05-23 11:19:01,344 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:01,345 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-05-23 11:19:01,345 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:19:01,346 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:19:01,346 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:19:01,346 INFO L146 ILogger]: Start difference. First operand 175 states and 181 transitions. Second operand 12 states. [2019-05-23 11:19:01,728 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:01,728 INFO L146 ILogger]: Finished difference Result 349 states and 366 transitions. [2019-05-23 11:19:01,728 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:19:01,729 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 170 [2019-05-23 11:19:01,729 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:01,731 INFO L146 ILogger]: With dead ends: 349 [2019-05-23 11:19:01,732 INFO L146 ILogger]: Without dead ends: 205 [2019-05-23 11:19:01,733 INFO L146 ILogger]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:19:01,733 INFO L146 ILogger]: Start minimizeSevpa. Operand 205 states. [2019-05-23 11:19:01,740 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 205 to 193. [2019-05-23 11:19:01,740 INFO L146 ILogger]: Start removeUnreachable. Operand 193 states. [2019-05-23 11:19:01,741 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 193 states to 193 states and 199 transitions. [2019-05-23 11:19:01,742 INFO L146 ILogger]: Start accepts. Automaton has 193 states and 199 transitions. Word has length 170 [2019-05-23 11:19:01,742 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:01,742 INFO L146 ILogger]: Abstraction has 193 states and 199 transitions. [2019-05-23 11:19:01,742 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:19:01,742 INFO L146 ILogger]: Start isEmpty. Operand 193 states and 199 transitions. [2019-05-23 11:19:01,745 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 189 [2019-05-23 11:19:01,745 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:01,745 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:01,745 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:01,746 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:01,746 INFO L146 ILogger]: Analyzing trace with hash 1633224733, now seen corresponding path program 8 times [2019-05-23 11:19:01,746 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:01,746 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:01,747 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:01,747 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:01,747 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:01,786 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:02,670 INFO L146 ILogger]: Checked inductivity of 702 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2019-05-23 11:19:02,671 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:02,671 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 11:19:02,682 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:19:02,734 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:19:02,734 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:02,736 INFO L146 ILogger]: Trace formula consists of 265 conjuncts, 11 conjunts are in the unsatisfiable core [2019-05-23 11:19:02,739 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:02,865 INFO L146 ILogger]: Checked inductivity of 702 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2019-05-23 11:19:02,896 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:02,897 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-05-23 11:19:02,897 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:19:02,897 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:19:02,898 INFO L146 ILogger]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:19:02,898 INFO L146 ILogger]: Start difference. First operand 193 states and 199 transitions. Second operand 13 states. [2019-05-23 11:19:03,447 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:03,447 INFO L146 ILogger]: Finished difference Result 382 states and 399 transitions. [2019-05-23 11:19:03,447 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:19:03,448 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 188 [2019-05-23 11:19:03,448 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:03,450 INFO L146 ILogger]: With dead ends: 382 [2019-05-23 11:19:03,450 INFO L146 ILogger]: Without dead ends: 223 [2019-05-23 11:19:03,451 INFO L146 ILogger]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:19:03,452 INFO L146 ILogger]: Start minimizeSevpa. Operand 223 states. [2019-05-23 11:19:03,459 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 223 to 211. [2019-05-23 11:19:03,459 INFO L146 ILogger]: Start removeUnreachable. Operand 211 states. [2019-05-23 11:19:03,460 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 211 states to 211 states and 217 transitions. [2019-05-23 11:19:03,460 INFO L146 ILogger]: Start accepts. Automaton has 211 states and 217 transitions. Word has length 188 [2019-05-23 11:19:03,461 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:03,461 INFO L146 ILogger]: Abstraction has 211 states and 217 transitions. [2019-05-23 11:19:03,461 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:19:03,461 INFO L146 ILogger]: Start isEmpty. Operand 211 states and 217 transitions. [2019-05-23 11:19:03,464 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 207 [2019-05-23 11:19:03,464 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:03,464 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:03,465 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:03,465 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:03,465 INFO L146 ILogger]: Analyzing trace with hash 1324379552, now seen corresponding path program 9 times [2019-05-23 11:19:03,465 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:03,466 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:03,466 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:03,467 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:19:03,467 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:03,503 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:03,749 INFO L146 ILogger]: Checked inductivity of 870 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2019-05-23 11:19:03,749 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:03,749 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 11:19:03,758 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:19:32,639 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-05-23 11:19:32,640 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:32,652 INFO L146 ILogger]: Trace formula consists of 289 conjuncts, 29 conjunts are in the unsatisfiable core [2019-05-23 11:19:32,654 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:32,718 INFO L146 ILogger]: Checked inductivity of 870 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2019-05-23 11:19:32,743 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:32,743 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-05-23 11:19:32,744 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:19:32,744 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:19:32,745 INFO L146 ILogger]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:19:32,745 INFO L146 ILogger]: Start difference. First operand 211 states and 217 transitions. Second operand 14 states. [2019-05-23 11:19:33,440 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:33,440 INFO L146 ILogger]: Finished difference Result 415 states and 432 transitions. [2019-05-23 11:19:33,441 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:19:33,441 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 206 [2019-05-23 11:19:33,441 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:33,443 INFO L146 ILogger]: With dead ends: 415 [2019-05-23 11:19:33,444 INFO L146 ILogger]: Without dead ends: 241 [2019-05-23 11:19:33,445 INFO L146 ILogger]: 0 DeclaredPredicates, 218 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:19:33,445 INFO L146 ILogger]: Start minimizeSevpa. Operand 241 states. [2019-05-23 11:19:33,450 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 241 to 229. [2019-05-23 11:19:33,451 INFO L146 ILogger]: Start removeUnreachable. Operand 229 states. [2019-05-23 11:19:33,452 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 229 states to 229 states and 235 transitions. [2019-05-23 11:19:33,452 INFO L146 ILogger]: Start accepts. Automaton has 229 states and 235 transitions. Word has length 206 [2019-05-23 11:19:33,452 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:33,452 INFO L146 ILogger]: Abstraction has 229 states and 235 transitions. [2019-05-23 11:19:33,452 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:19:33,453 INFO L146 ILogger]: Start isEmpty. Operand 229 states and 235 transitions. [2019-05-23 11:19:33,455 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 225 [2019-05-23 11:19:33,455 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:33,455 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:33,456 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:33,456 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:33,456 INFO L146 ILogger]: Analyzing trace with hash 1649628989, now seen corresponding path program 10 times [2019-05-23 11:19:33,456 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:33,456 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:33,457 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:33,457 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:19:33,457 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:33,488 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:33,692 INFO L146 ILogger]: Checked inductivity of 1056 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2019-05-23 11:19:33,692 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:33,692 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 11:19:33,702 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:19:33,753 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:19:33,753 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:33,754 INFO L146 ILogger]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:19:33,756 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:33,808 INFO L146 ILogger]: Checked inductivity of 1056 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2019-05-23 11:19:33,833 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:33,833 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-05-23 11:19:33,833 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:19:33,834 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:19:33,834 INFO L146 ILogger]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:19:33,834 INFO L146 ILogger]: Start difference. First operand 229 states and 235 transitions. Second operand 15 states. [2019-05-23 11:19:34,299 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:34,300 INFO L146 ILogger]: Finished difference Result 448 states and 465 transitions. [2019-05-23 11:19:34,300 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:19:34,301 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 224 [2019-05-23 11:19:34,301 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:34,303 INFO L146 ILogger]: With dead ends: 448 [2019-05-23 11:19:34,303 INFO L146 ILogger]: Without dead ends: 259 [2019-05-23 11:19:34,304 INFO L146 ILogger]: 0 DeclaredPredicates, 237 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:19:34,305 INFO L146 ILogger]: Start minimizeSevpa. Operand 259 states. [2019-05-23 11:19:34,310 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 259 to 247. [2019-05-23 11:19:34,310 INFO L146 ILogger]: Start removeUnreachable. Operand 247 states. [2019-05-23 11:19:34,311 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 247 states to 247 states and 253 transitions. [2019-05-23 11:19:34,325 INFO L146 ILogger]: Start accepts. Automaton has 247 states and 253 transitions. Word has length 224 [2019-05-23 11:19:34,325 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:34,325 INFO L146 ILogger]: Abstraction has 247 states and 253 transitions. [2019-05-23 11:19:34,328 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:19:34,328 INFO L146 ILogger]: Start isEmpty. Operand 247 states and 253 transitions. [2019-05-23 11:19:34,329 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 243 [2019-05-23 11:19:34,329 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:34,329 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:34,330 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:34,330 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:34,330 INFO L146 ILogger]: Analyzing trace with hash 1744972288, now seen corresponding path program 11 times [2019-05-23 11:19:34,330 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:34,330 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:34,331 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:34,331 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:19:34,331 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:34,379 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:34,633 INFO L146 ILogger]: Checked inductivity of 1260 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2019-05-23 11:19:34,633 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:34,633 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 11:19:34,642 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1