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/reducercommutativity/max40_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:23:40,812 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:23:40,814 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:23:40,825 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:23:40,826 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:23:40,827 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:23:40,828 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:23:40,830 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:23:40,832 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:23:40,833 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:23:40,834 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:23:40,834 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:23:40,835 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:23:40,836 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:23:40,837 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:23:40,838 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:23:40,839 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:23:40,841 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:23:40,843 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:23:40,845 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:23:40,846 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:23:40,848 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:23:40,850 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:23:40,851 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:23:40,851 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:23:40,852 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:23:40,853 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:23:40,854 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:23:40,854 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:23:40,855 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:23:40,856 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:23:40,856 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:23:40,857 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:23:40,858 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:23:40,859 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:23:40,859 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:23:40,859 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:23:40,860 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:23:40,861 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:23:40,861 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:23:40,885 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:23:40,885 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:23:40,886 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:23:40,887 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:23:40,887 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:23:40,887 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:23:40,887 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:23:40,888 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:23:40,888 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:23:40,888 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:23:40,888 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:23:40,888 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:23:40,889 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:23:40,889 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:23:40,889 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:23:40,889 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:23:40,889 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:23:40,890 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:23:40,890 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:23:40,890 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:23:40,890 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:23:40,890 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:23:40,891 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:23:40,892 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:23:40,892 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:23:40,892 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:23:40,892 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:23:40,893 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:23:40,893 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 11:23:40,950 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:23:40,968 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:23:40,973 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:23:40,975 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:23:40,975 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:23:40,976 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/reducercommutativity/max40_true-unreach-call.i [2019-05-23 11:23:41,046 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db5335d9f/2d1c92eecd0042c883df8e6f93b1cefe/FLAG25d6e5bf8 [2019-05-23 11:23:41,538 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:23:41,539 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/reducercommutativity/max40_true-unreach-call.i [2019-05-23 11:23:41,545 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db5335d9f/2d1c92eecd0042c883df8e6f93b1cefe/FLAG25d6e5bf8 [2019-05-23 11:23:41,867 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db5335d9f/2d1c92eecd0042c883df8e6f93b1cefe [2019-05-23 11:23:41,878 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:23:41,880 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:23:41,881 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:23:41,881 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:23:41,885 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:23:41,886 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:23:41" (1/1) ... [2019-05-23 11:23:41,889 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2311937a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:41, skipping insertion in model container [2019-05-23 11:23:41,889 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:23:41" (1/1) ... [2019-05-23 11:23:41,897 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:23:41,915 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:23:42,118 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:23:42,143 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:23:42,188 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:23:42,211 INFO L146 ILogger]: Completed translation [2019-05-23 11:23:42,212 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42 WrapperNode [2019-05-23 11:23:42,212 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:23:42,214 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:23:42,215 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:23:42,215 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:23:42,227 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,241 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,284 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:23:42,284 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:23:42,285 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:23:42,285 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:23:42,429 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,429 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,439 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,440 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,453 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,465 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,470 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (1/1) ... [2019-05-23 11:23:42,473 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:23:42,477 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:23:42,477 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:23:42,477 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:23:42,478 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (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 11:23:42,543 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:23:42,543 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:23:42,543 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:23:42,543 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:23:42,544 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:23:42,544 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:23:43,304 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:23:43,304 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:23:43,306 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:23:43 BoogieIcfgContainer [2019-05-23 11:23:43,306 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:23:43,307 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:23:43,307 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:23:43,310 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:23:43,310 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:23:41" (1/3) ... [2019-05-23 11:23:43,311 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e46ac17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:23:43, skipping insertion in model container [2019-05-23 11:23:43,311 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:42" (2/3) ... [2019-05-23 11:23:43,312 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e46ac17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:23:43, skipping insertion in model container [2019-05-23 11:23:43,312 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:23:43" (3/3) ... [2019-05-23 11:23:43,314 INFO L146 ILogger]: Analyzing ICFG max40_true-unreach-call.i [2019-05-23 11:23:43,323 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:23:43,332 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:23:43,347 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:23:43,377 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:23:43,377 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:23:43,378 INFO L146 ILogger]: Hoare is true [2019-05-23 11:23:43,378 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:23:43,378 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:23:43,378 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:23:43,378 INFO L146 ILogger]: Difference is false [2019-05-23 11:23:43,379 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:23:43,379 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:23:43,395 INFO L146 ILogger]: Start isEmpty. Operand 123 states. [2019-05-23 11:23:43,405 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 69 [2019-05-23 11:23:43,405 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:43,406 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, 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 11:23:43,408 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:43,413 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:43,413 INFO L146 ILogger]: Analyzing trace with hash -995057191, now seen corresponding path program 1 times [2019-05-23 11:23:43,415 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:43,415 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:43,456 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:43,456 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:43,456 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:43,500 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:43,581 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 11:23:43,584 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:23:43,584 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:23:43,589 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:23:43,603 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:23:43,604 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:23:43,606 INFO L146 ILogger]: Start difference. First operand 123 states. Second operand 3 states. [2019-05-23 11:23:43,720 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:43,720 INFO L146 ILogger]: Finished difference Result 235 states and 261 transitions. [2019-05-23 11:23:43,721 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:23:43,722 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 68 [2019-05-23 11:23:43,723 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:43,734 INFO L146 ILogger]: With dead ends: 235 [2019-05-23 11:23:43,734 INFO L146 ILogger]: Without dead ends: 123 [2019-05-23 11:23:43,739 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 11:23:43,754 INFO L146 ILogger]: Start minimizeSevpa. Operand 123 states. [2019-05-23 11:23:43,775 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 123 to 118. [2019-05-23 11:23:43,777 INFO L146 ILogger]: Start removeUnreachable. Operand 118 states. [2019-05-23 11:23:43,780 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2019-05-23 11:23:43,781 INFO L146 ILogger]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 68 [2019-05-23 11:23:43,782 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:43,782 INFO L146 ILogger]: Abstraction has 118 states and 125 transitions. [2019-05-23 11:23:43,782 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:23:43,782 INFO L146 ILogger]: Start isEmpty. Operand 118 states and 125 transitions. [2019-05-23 11:23:43,787 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:23:43,787 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:43,787 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, 1, 1, 1, 1, 1, 1, 1, 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 11:23:43,789 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:43,789 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:43,789 INFO L146 ILogger]: Analyzing trace with hash -654270407, now seen corresponding path program 1 times [2019-05-23 11:23:43,791 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:43,791 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:43,792 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:43,792 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:43,793 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:43,843 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:43,955 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 11:23:43,955 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:43,955 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 11:23:43,975 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:44,026 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:44,028 INFO L146 ILogger]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:23:44,036 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:44,081 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:23:44,114 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:23:44,114 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:23:44,115 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:23:44,116 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:23:44,116 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:23:44,116 INFO L146 ILogger]: Start difference. First operand 118 states and 125 transitions. Second operand 6 states. [2019-05-23 11:23:44,505 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:44,505 INFO L146 ILogger]: Finished difference Result 266 states and 286 transitions. [2019-05-23 11:23:44,506 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:23:44,506 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 75 [2019-05-23 11:23:44,506 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:44,508 INFO L146 ILogger]: With dead ends: 266 [2019-05-23 11:23:44,508 INFO L146 ILogger]: Without dead ends: 166 [2019-05-23 11:23:44,510 INFO L146 ILogger]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:23:44,511 INFO L146 ILogger]: Start minimizeSevpa. Operand 166 states. [2019-05-23 11:23:44,520 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 166 to 128. [2019-05-23 11:23:44,521 INFO L146 ILogger]: Start removeUnreachable. Operand 128 states. [2019-05-23 11:23:44,522 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 128 states to 128 states and 135 transitions. [2019-05-23 11:23:44,522 INFO L146 ILogger]: Start accepts. Automaton has 128 states and 135 transitions. Word has length 75 [2019-05-23 11:23:44,523 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:44,523 INFO L146 ILogger]: Abstraction has 128 states and 135 transitions. [2019-05-23 11:23:44,523 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:23:44,523 INFO L146 ILogger]: Start isEmpty. Operand 128 states and 135 transitions. [2019-05-23 11:23:44,526 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 116 [2019-05-23 11:23:44,526 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:44,527 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:44,527 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:44,527 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:44,527 INFO L146 ILogger]: Analyzing trace with hash -698075846, now seen corresponding path program 1 times [2019-05-23 11:23:44,527 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:44,528 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:44,529 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:44,529 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:44,529 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:44,565 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:44,645 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:23:44,645 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:44,645 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 11:23:44,654 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:44,713 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:44,715 INFO L146 ILogger]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:23:44,719 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:44,781 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-05-23 11:23:44,803 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:23:44,803 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:23:44,803 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:23:44,804 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:23:44,804 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:23:44,804 INFO L146 ILogger]: Start difference. First operand 128 states and 135 transitions. Second operand 6 states. [2019-05-23 11:23:45,647 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:45,648 INFO L146 ILogger]: Finished difference Result 287 states and 308 transitions. [2019-05-23 11:23:45,648 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:23:45,648 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 115 [2019-05-23 11:23:45,649 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:45,654 INFO L146 ILogger]: With dead ends: 287 [2019-05-23 11:23:45,655 INFO L146 ILogger]: Without dead ends: 206 [2019-05-23 11:23:45,656 INFO L146 ILogger]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:23:45,656 INFO L146 ILogger]: Start minimizeSevpa. Operand 206 states. [2019-05-23 11:23:45,667 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 206 to 168. [2019-05-23 11:23:45,667 INFO L146 ILogger]: Start removeUnreachable. Operand 168 states. [2019-05-23 11:23:45,669 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 168 states to 168 states and 178 transitions. [2019-05-23 11:23:45,669 INFO L146 ILogger]: Start accepts. Automaton has 168 states and 178 transitions. Word has length 115 [2019-05-23 11:23:45,670 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:45,670 INFO L146 ILogger]: Abstraction has 168 states and 178 transitions. [2019-05-23 11:23:45,670 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:23:45,670 INFO L146 ILogger]: Start isEmpty. Operand 168 states and 178 transitions. [2019-05-23 11:23:45,673 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 156 [2019-05-23 11:23:45,673 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:45,673 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:45,674 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:45,674 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:45,674 INFO L146 ILogger]: Analyzing trace with hash 780442322, now seen corresponding path program 1 times [2019-05-23 11:23:45,674 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:45,675 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:45,676 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:45,676 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:45,676 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:45,713 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:45,847 INFO L146 ILogger]: Checked inductivity of 49 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:23:45,847 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:45,847 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 11:23:45,861 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:45,941 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:45,943 INFO L146 ILogger]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:23:45,953 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:46,456 INFO L146 ILogger]: Checked inductivity of 49 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-05-23 11:23:46,476 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:46,476 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:23:46,477 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:23:46,477 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:23:46,478 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:23:46,478 INFO L146 ILogger]: Start difference. First operand 168 states and 178 transitions. Second operand 10 states. [2019-05-23 11:23:46,809 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:46,810 INFO L146 ILogger]: Finished difference Result 335 states and 356 transitions. [2019-05-23 11:23:46,810 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:23:46,810 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 155 [2019-05-23 11:23:46,810 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:46,812 INFO L146 ILogger]: With dead ends: 335 [2019-05-23 11:23:46,812 INFO L146 ILogger]: Without dead ends: 192 [2019-05-23 11:23:46,813 INFO L146 ILogger]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:23:46,814 INFO L146 ILogger]: Start minimizeSevpa. Operand 192 states. [2019-05-23 11:23:46,823 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 192 to 182. [2019-05-23 11:23:46,824 INFO L146 ILogger]: Start removeUnreachable. Operand 182 states. [2019-05-23 11:23:46,825 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 182 states to 182 states and 192 transitions. [2019-05-23 11:23:46,825 INFO L146 ILogger]: Start accepts. Automaton has 182 states and 192 transitions. Word has length 155 [2019-05-23 11:23:46,825 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:46,826 INFO L146 ILogger]: Abstraction has 182 states and 192 transitions. [2019-05-23 11:23:46,826 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:23:46,826 INFO L146 ILogger]: Start isEmpty. Operand 182 states and 192 transitions. [2019-05-23 11:23:46,829 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 170 [2019-05-23 11:23:46,829 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:46,829 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:46,829 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:46,830 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:46,830 INFO L146 ILogger]: Analyzing trace with hash -1183164167, now seen corresponding path program 2 times [2019-05-23 11:23:46,830 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:46,830 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:46,831 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:46,831 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:46,831 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:46,880 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:47,050 INFO L146 ILogger]: Checked inductivity of 72 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:23:47,050 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:47,050 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:23:47,059 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:23:47,118 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:23:47,118 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:47,120 INFO L146 ILogger]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:23:47,125 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:47,303 INFO L146 ILogger]: Checked inductivity of 72 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:23:47,321 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:47,321 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:23:47,322 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:23:47,322 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:23:47,323 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:23:47,324 INFO L146 ILogger]: Start difference. First operand 182 states and 192 transitions. Second operand 11 states. [2019-05-23 11:23:47,470 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:47,470 INFO L146 ILogger]: Finished difference Result 344 states and 364 transitions. [2019-05-23 11:23:47,470 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:23:47,470 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 169 [2019-05-23 11:23:47,471 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:47,471 INFO L146 ILogger]: With dead ends: 344 [2019-05-23 11:23:47,472 INFO L146 ILogger]: Without dead ends: 194 [2019-05-23 11:23:47,473 INFO L146 ILogger]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:23:47,474 INFO L146 ILogger]: Start minimizeSevpa. Operand 194 states. [2019-05-23 11:23:47,481 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 194 to 189. [2019-05-23 11:23:47,482 INFO L146 ILogger]: Start removeUnreachable. Operand 189 states. [2019-05-23 11:23:47,482 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 189 states to 189 states and 199 transitions. [2019-05-23 11:23:47,483 INFO L146 ILogger]: Start accepts. Automaton has 189 states and 199 transitions. Word has length 169 [2019-05-23 11:23:47,483 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:47,483 INFO L146 ILogger]: Abstraction has 189 states and 199 transitions. [2019-05-23 11:23:47,483 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:23:47,483 INFO L146 ILogger]: Start isEmpty. Operand 189 states and 199 transitions. [2019-05-23 11:23:47,486 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 177 [2019-05-23 11:23:47,486 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:47,487 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:47,487 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:47,487 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:47,488 INFO L146 ILogger]: Analyzing trace with hash -1973557393, now seen corresponding path program 3 times [2019-05-23 11:23:47,488 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:47,488 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:47,489 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:47,489 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:47,489 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:47,516 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:47,680 INFO L146 ILogger]: Checked inductivity of 94 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:23:47,681 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:47,681 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 11:23:47,690 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:23:47,739 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:23:47,739 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:47,740 INFO L146 ILogger]: Trace formula consists of 259 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:23:47,745 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:47,878 INFO L146 ILogger]: Checked inductivity of 94 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-05-23 11:23:47,896 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:47,897 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 16 [2019-05-23 11:23:47,897 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:23:47,898 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:23:47,899 INFO L146 ILogger]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:23:47,899 INFO L146 ILogger]: Start difference. First operand 189 states and 199 transitions. Second operand 16 states. [2019-05-23 11:23:48,511 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:48,512 INFO L146 ILogger]: Finished difference Result 423 states and 452 transitions. [2019-05-23 11:23:48,512 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:23:48,512 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 176 [2019-05-23 11:23:48,513 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:48,514 INFO L146 ILogger]: With dead ends: 423 [2019-05-23 11:23:48,514 INFO L146 ILogger]: Without dead ends: 273 [2019-05-23 11:23:48,515 INFO L146 ILogger]: 0 DeclaredPredicates, 202 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:23:48,516 INFO L146 ILogger]: Start minimizeSevpa. Operand 273 states. [2019-05-23 11:23:48,523 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 273 to 235. [2019-05-23 11:23:48,523 INFO L146 ILogger]: Start removeUnreachable. Operand 235 states. [2019-05-23 11:23:48,524 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 235 states to 235 states and 248 transitions. [2019-05-23 11:23:48,525 INFO L146 ILogger]: Start accepts. Automaton has 235 states and 248 transitions. Word has length 176 [2019-05-23 11:23:48,525 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:48,525 INFO L146 ILogger]: Abstraction has 235 states and 248 transitions. [2019-05-23 11:23:48,525 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:23:48,525 INFO L146 ILogger]: Start isEmpty. Operand 235 states and 248 transitions. [2019-05-23 11:23:48,529 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 217 [2019-05-23 11:23:48,529 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:48,529 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:48,530 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:48,530 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:48,530 INFO L146 ILogger]: Analyzing trace with hash -1794583568, now seen corresponding path program 4 times [2019-05-23 11:23:48,530 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:48,530 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:48,531 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:48,531 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:48,532 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:48,584 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:48,838 INFO L146 ILogger]: Checked inductivity of 192 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-05-23 11:23:48,839 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:48,839 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 11:23:48,848 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:23:48,911 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:23:48,912 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:48,913 INFO L146 ILogger]: Trace formula consists of 337 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:23:48,917 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:48,999 INFO L146 ILogger]: Checked inductivity of 192 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-05-23 11:23:49,025 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:49,026 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2019-05-23 11:23:49,026 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:23:49,026 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:23:49,027 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:23:49,027 INFO L146 ILogger]: Start difference. First operand 235 states and 248 transitions. Second operand 15 states. [2019-05-23 11:23:49,300 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:49,301 INFO L146 ILogger]: Finished difference Result 436 states and 462 transitions. [2019-05-23 11:23:49,301 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:23:49,301 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 216 [2019-05-23 11:23:49,301 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:49,303 INFO L146 ILogger]: With dead ends: 436 [2019-05-23 11:23:49,303 INFO L146 ILogger]: Without dead ends: 247 [2019-05-23 11:23:49,304 INFO L146 ILogger]: 0 DeclaredPredicates, 238 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=196, Invalid=404, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:23:49,304 INFO L146 ILogger]: Start minimizeSevpa. Operand 247 states. [2019-05-23 11:23:49,310 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 247 to 242. [2019-05-23 11:23:49,310 INFO L146 ILogger]: Start removeUnreachable. Operand 242 states. [2019-05-23 11:23:49,311 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 242 states to 242 states and 255 transitions. [2019-05-23 11:23:49,311 INFO L146 ILogger]: Start accepts. Automaton has 242 states and 255 transitions. Word has length 216 [2019-05-23 11:23:49,311 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:49,312 INFO L146 ILogger]: Abstraction has 242 states and 255 transitions. [2019-05-23 11:23:49,312 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:23:49,312 INFO L146 ILogger]: Start isEmpty. Operand 242 states and 255 transitions. [2019-05-23 11:23:49,314 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 224 [2019-05-23 11:23:49,315 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:49,315 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:49,315 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:49,315 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:49,316 INFO L146 ILogger]: Analyzing trace with hash 1458971322, now seen corresponding path program 5 times [2019-05-23 11:23:49,316 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:49,316 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:49,317 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:49,317 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:49,317 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:49,357 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:49,601 INFO L146 ILogger]: Checked inductivity of 228 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-05-23 11:23:49,602 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:49,602 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 11:23:49,611 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:23:49,715 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2019-05-23 11:23:49,715 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:49,717 INFO L146 ILogger]: Trace formula consists of 347 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:23:49,720 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:49,941 INFO L146 ILogger]: Checked inductivity of 228 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2019-05-23 11:23:49,960 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:49,960 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9] total 22 [2019-05-23 11:23:49,961 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:23:49,961 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:23:49,961 INFO L146 ILogger]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:23:49,962 INFO L146 ILogger]: Start difference. First operand 242 states and 255 transitions. Second operand 22 states. [2019-05-23 11:23:50,890 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:50,890 INFO L146 ILogger]: Finished difference Result 515 states and 550 transitions. [2019-05-23 11:23:50,891 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-05-23 11:23:50,891 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 223 [2019-05-23 11:23:50,891 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:50,894 INFO L146 ILogger]: With dead ends: 515 [2019-05-23 11:23:50,894 INFO L146 ILogger]: Without dead ends: 326 [2019-05-23 11:23:50,896 INFO L146 ILogger]: 0 DeclaredPredicates, 261 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=320, Invalid=1240, Unknown=0, NotChecked=0, Total=1560 [2019-05-23 11:23:50,896 INFO L146 ILogger]: Start minimizeSevpa. Operand 326 states. [2019-05-23 11:23:50,901 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 326 to 288. [2019-05-23 11:23:50,902 INFO L146 ILogger]: Start removeUnreachable. Operand 288 states. [2019-05-23 11:23:50,903 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 288 states to 288 states and 304 transitions. [2019-05-23 11:23:50,903 INFO L146 ILogger]: Start accepts. Automaton has 288 states and 304 transitions. Word has length 223 [2019-05-23 11:23:50,903 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:50,903 INFO L146 ILogger]: Abstraction has 288 states and 304 transitions. [2019-05-23 11:23:50,904 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:23:50,904 INFO L146 ILogger]: Start isEmpty. Operand 288 states and 304 transitions. [2019-05-23 11:23:50,905 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 264 [2019-05-23 11:23:50,905 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:50,906 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:50,906 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:50,906 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:50,906 INFO L146 ILogger]: Analyzing trace with hash 1190603737, now seen corresponding path program 6 times [2019-05-23 11:23:50,907 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:50,907 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:50,907 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:50,908 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:50,908 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:50,936 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:51,169 INFO L146 ILogger]: Checked inductivity of 373 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2019-05-23 11:23:51,169 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:51,169 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 11:23:51,178 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:23:51,288 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-05-23 11:23:51,288 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:51,290 INFO L146 ILogger]: Trace formula consists of 279 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:23:51,293 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:51,383 INFO L146 ILogger]: Checked inductivity of 373 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-05-23 11:23:51,402 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:51,402 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7] total 22 [2019-05-23 11:23:51,403 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:23:51,403 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:23:51,404 INFO L146 ILogger]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:23:51,404 INFO L146 ILogger]: Start difference. First operand 288 states and 304 transitions. Second operand 22 states. [2019-05-23 11:23:51,840 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:51,841 INFO L146 ILogger]: Finished difference Result 540 states and 573 transitions. [2019-05-23 11:23:51,848 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-05-23 11:23:51,848 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 263 [2019-05-23 11:23:51,848 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:51,850 INFO L146 ILogger]: With dead ends: 540 [2019-05-23 11:23:51,850 INFO L146 ILogger]: Without dead ends: 312 [2019-05-23 11:23:51,851 INFO L146 ILogger]: 0 DeclaredPredicates, 297 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=360, Invalid=1200, Unknown=0, NotChecked=0, Total=1560 [2019-05-23 11:23:51,852 INFO L146 ILogger]: Start minimizeSevpa. Operand 312 states. [2019-05-23 11:23:51,857 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 312 to 302. [2019-05-23 11:23:51,857 INFO L146 ILogger]: Start removeUnreachable. Operand 302 states. [2019-05-23 11:23:51,858 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 302 states to 302 states and 318 transitions. [2019-05-23 11:23:51,859 INFO L146 ILogger]: Start accepts. Automaton has 302 states and 318 transitions. Word has length 263 [2019-05-23 11:23:51,859 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:51,859 INFO L146 ILogger]: Abstraction has 302 states and 318 transitions. [2019-05-23 11:23:51,859 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:23:51,859 INFO L146 ILogger]: Start isEmpty. Operand 302 states and 318 transitions. [2019-05-23 11:23:51,861 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 278 [2019-05-23 11:23:51,861 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:51,861 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:51,862 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:51,862 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:51,862 INFO L146 ILogger]: Analyzing trace with hash -31358830, now seen corresponding path program 7 times [2019-05-23 11:23:51,862 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:51,862 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:51,863 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:51,863 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:51,863 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:51,891 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:52,376 INFO L146 ILogger]: Checked inductivity of 438 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-05-23 11:23:52,376 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:52,376 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 11:23:52,386 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:52,442 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:52,444 INFO L146 ILogger]: Trace formula consists of 425 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:23:52,448 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:52,566 INFO L146 ILogger]: Checked inductivity of 438 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-05-23 11:23:52,586 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:52,586 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2019-05-23 11:23:52,587 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:23:52,587 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:23:52,588 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:23:52,588 INFO L146 ILogger]: Start difference. First operand 302 states and 318 transitions. Second operand 21 states. [2019-05-23 11:23:53,011 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:53,012 INFO L146 ILogger]: Finished difference Result 549 states and 581 transitions. [2019-05-23 11:23:53,012 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:23:53,012 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 277 [2019-05-23 11:23:53,013 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:53,016 INFO L146 ILogger]: With dead ends: 549 [2019-05-23 11:23:53,016 INFO L146 ILogger]: Without dead ends: 314 [2019-05-23 11:23:53,018 INFO L146 ILogger]: 0 DeclaredPredicates, 311 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=427, Invalid=905, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:23:53,019 INFO L146 ILogger]: Start minimizeSevpa. Operand 314 states. [2019-05-23 11:23:53,027 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 314 to 309. [2019-05-23 11:23:53,028 INFO L146 ILogger]: Start removeUnreachable. Operand 309 states. [2019-05-23 11:23:53,029 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 309 states to 309 states and 325 transitions. [2019-05-23 11:23:53,029 INFO L146 ILogger]: Start accepts. Automaton has 309 states and 325 transitions. Word has length 277 [2019-05-23 11:23:53,030 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:53,030 INFO L146 ILogger]: Abstraction has 309 states and 325 transitions. [2019-05-23 11:23:53,030 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:23:53,030 INFO L146 ILogger]: Start isEmpty. Operand 309 states and 325 transitions. [2019-05-23 11:23:53,032 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 285 [2019-05-23 11:23:53,033 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:53,034 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:53,034 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:53,034 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:53,035 INFO L146 ILogger]: Analyzing trace with hash 849020424, now seen corresponding path program 8 times [2019-05-23 11:23:53,036 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:53,036 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:53,037 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:53,037 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:53,037 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:53,080 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:54,505 INFO L146 ILogger]: Checked inductivity of 495 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-05-23 11:23:54,505 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:54,505 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 11:23:54,514 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:23:54,586 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:23:54,586 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:54,587 INFO L146 ILogger]: Trace formula consists of 435 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:23:54,590 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:54,672 INFO L146 ILogger]: Checked inductivity of 495 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-05-23 11:23:54,692 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:54,692 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2019-05-23 11:23:54,692 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:23:54,693 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:23:54,693 INFO L146 ILogger]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:23:54,693 INFO L146 ILogger]: Start difference. First operand 309 states and 325 transitions. Second operand 23 states. [2019-05-23 11:23:56,175 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:56,175 INFO L146 ILogger]: Finished difference Result 556 states and 588 transitions. [2019-05-23 11:23:56,176 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:23:56,177 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 284 [2019-05-23 11:23:56,177 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:56,178 INFO L146 ILogger]: With dead ends: 556 [2019-05-23 11:23:56,179 INFO L146 ILogger]: Without dead ends: 321 [2019-05-23 11:23:56,181 INFO L146 ILogger]: 0 DeclaredPredicates, 322 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 11:23:56,181 INFO L146 ILogger]: Start minimizeSevpa. Operand 321 states. [2019-05-23 11:23:56,186 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 321 to 316. [2019-05-23 11:23:56,186 INFO L146 ILogger]: Start removeUnreachable. Operand 316 states. [2019-05-23 11:23:56,187 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 316 states to 316 states and 332 transitions. [2019-05-23 11:23:56,188 INFO L146 ILogger]: Start accepts. Automaton has 316 states and 332 transitions. Word has length 284 [2019-05-23 11:23:56,188 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:56,188 INFO L146 ILogger]: Abstraction has 316 states and 332 transitions. [2019-05-23 11:23:56,188 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:23:56,188 INFO L146 ILogger]: Start isEmpty. Operand 316 states and 332 transitions. [2019-05-23 11:23:56,192 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 292 [2019-05-23 11:23:56,192 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:56,193 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:56,193 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:56,193 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:56,194 INFO L146 ILogger]: Analyzing trace with hash -1843621934, now seen corresponding path program 9 times [2019-05-23 11:23:56,194 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:56,194 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:56,195 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:56,196 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:56,196 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:56,228 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:56,559 INFO L146 ILogger]: Checked inductivity of 559 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-05-23 11:23:56,559 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:56,559 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 11:23:56,568 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:23:56,641 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:23:56,641 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:56,642 INFO L146 ILogger]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:23:56,645 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:56,800 INFO L146 ILogger]: Checked inductivity of 559 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2019-05-23 11:23:56,819 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:56,819 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 9] total 30 [2019-05-23 11:23:56,820 INFO L146 ILogger]: Interpolant automaton has 30 states [2019-05-23 11:23:56,820 INFO L146 ILogger]: Constructing interpolant automaton starting with 30 interpolants. [2019-05-23 11:23:56,821 INFO L146 ILogger]: CoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2019-05-23 11:23:56,821 INFO L146 ILogger]: Start difference. First operand 316 states and 332 transitions. Second operand 30 states. [2019-05-23 11:23:58,737 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:58,738 INFO L146 ILogger]: Finished difference Result 575 states and 608 transitions. [2019-05-23 11:23:58,738 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-05-23 11:23:58,739 INFO L146 ILogger]: Start accepts. Automaton has 30 states. Word has length 291 [2019-05-23 11:23:58,739 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:58,740 INFO L146 ILogger]: With dead ends: 575 [2019-05-23 11:23:58,740 INFO L146 ILogger]: Without dead ends: 340 [2019-05-23 11:23:58,742 INFO L146 ILogger]: 0 DeclaredPredicates, 339 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=680, Invalid=2400, Unknown=0, NotChecked=0, Total=3080 [2019-05-23 11:23:58,743 INFO L146 ILogger]: Start minimizeSevpa. Operand 340 states. [2019-05-23 11:23:58,748 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 340 to 330. [2019-05-23 11:23:58,748 INFO L146 ILogger]: Start removeUnreachable. Operand 330 states. [2019-05-23 11:23:58,749 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 330 states to 330 states and 346 transitions. [2019-05-23 11:23:58,750 INFO L146 ILogger]: Start accepts. Automaton has 330 states and 346 transitions. Word has length 291 [2019-05-23 11:23:58,750 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:58,750 INFO L146 ILogger]: Abstraction has 330 states and 346 transitions. [2019-05-23 11:23:58,750 INFO L146 ILogger]: Interpolant automaton has 30 states. [2019-05-23 11:23:58,750 INFO L146 ILogger]: Start isEmpty. Operand 330 states and 346 transitions. [2019-05-23 11:23:58,752 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 306 [2019-05-23 11:23:58,752 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:58,752 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:58,753 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:58,753 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:58,753 INFO L146 ILogger]: Analyzing trace with hash -1379340423, now seen corresponding path program 10 times [2019-05-23 11:23:58,753 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:58,753 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:58,754 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:58,754 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:58,754 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:58,780 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:59,149 INFO L146 ILogger]: Checked inductivity of 652 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2019-05-23 11:23:59,150 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:59,150 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:23:59,159 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:23:59,323 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:23:59,324 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:59,325 INFO L146 ILogger]: Trace formula consists of 465 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:23:59,331 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:59,450 INFO L146 ILogger]: Checked inductivity of 652 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2019-05-23 11:23:59,470 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:59,470 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2019-05-23 11:23:59,471 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:23:59,471 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:23:59,471 INFO L146 ILogger]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:23:59,471 INFO L146 ILogger]: Start difference. First operand 330 states and 346 transitions. Second operand 27 states. [2019-05-23 11:24:00,034 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:00,035 INFO L146 ILogger]: Finished difference Result 584 states and 616 transitions. [2019-05-23 11:24:00,036 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:24:00,036 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 305 [2019-05-23 11:24:00,036 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:00,038 INFO L146 ILogger]: With dead ends: 584 [2019-05-23 11:24:00,038 INFO L146 ILogger]: Without dead ends: 342 [2019-05-23 11:24:00,039 INFO L146 ILogger]: 0 DeclaredPredicates, 351 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=748, Invalid=1604, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:24:00,040 INFO L146 ILogger]: Start minimizeSevpa. Operand 342 states. [2019-05-23 11:24:00,045 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 342 to 337. [2019-05-23 11:24:00,045 INFO L146 ILogger]: Start removeUnreachable. Operand 337 states. [2019-05-23 11:24:00,048 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 337 states to 337 states and 353 transitions. [2019-05-23 11:24:00,049 INFO L146 ILogger]: Start accepts. Automaton has 337 states and 353 transitions. Word has length 305 [2019-05-23 11:24:00,049 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:00,049 INFO L146 ILogger]: Abstraction has 337 states and 353 transitions. [2019-05-23 11:24:00,049 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:24:00,049 INFO L146 ILogger]: Start isEmpty. Operand 337 states and 353 transitions. [2019-05-23 11:24:00,051 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 313 [2019-05-23 11:24:00,051 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:00,051 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:00,052 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:00,052 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:00,052 INFO L146 ILogger]: Analyzing trace with hash 1867270127, now seen corresponding path program 11 times [2019-05-23 11:24:00,052 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:00,052 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:00,053 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:00,053 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:00,053 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:00,086 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:00,969 INFO L146 ILogger]: Checked inductivity of 730 backedges. 0 proven. 474 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2019-05-23 11:24:00,970 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:00,970 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:00,979 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:24:01,275 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2019-05-23 11:24:01,275 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:01,277 INFO L146 ILogger]: Trace formula consists of 475 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:24:01,281 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:01,548 INFO L146 ILogger]: Checked inductivity of 730 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2019-05-23 11:24:01,567 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:01,567 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 11] total 36 [2019-05-23 11:24:01,568 INFO L146 ILogger]: Interpolant automaton has 36 states [2019-05-23 11:24:01,568 INFO L146 ILogger]: Constructing interpolant automaton starting with 36 interpolants. [2019-05-23 11:24:01,569 INFO L146 ILogger]: CoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 11:24:01,569 INFO L146 ILogger]: Start difference. First operand 337 states and 353 transitions. Second operand 36 states. [2019-05-23 11:24:02,949 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:02,949 INFO L146 ILogger]: Finished difference Result 663 states and 704 transitions. [2019-05-23 11:24:02,950 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-05-23 11:24:02,950 INFO L146 ILogger]: Start accepts. Automaton has 36 states. Word has length 312 [2019-05-23 11:24:02,950 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:02,953 INFO L146 ILogger]: With dead ends: 663 [2019-05-23 11:24:02,953 INFO L146 ILogger]: Without dead ends: 421 [2019-05-23 11:24:02,956 INFO L146 ILogger]: 0 DeclaredPredicates, 370 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=965, Invalid=3591, Unknown=0, NotChecked=0, Total=4556 [2019-05-23 11:24:02,957 INFO L146 ILogger]: Start minimizeSevpa. Operand 421 states. [2019-05-23 11:24:02,963 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 421 to 383. [2019-05-23 11:24:02,963 INFO L146 ILogger]: Start removeUnreachable. Operand 383 states. [2019-05-23 11:24:02,964 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 383 states to 383 states and 402 transitions. [2019-05-23 11:24:02,964 INFO L146 ILogger]: Start accepts. Automaton has 383 states and 402 transitions. Word has length 312 [2019-05-23 11:24:02,965 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:02,965 INFO L146 ILogger]: Abstraction has 383 states and 402 transitions. [2019-05-23 11:24:02,965 INFO L146 ILogger]: Interpolant automaton has 36 states. [2019-05-23 11:24:02,965 INFO L146 ILogger]: Start isEmpty. Operand 383 states and 402 transitions. [2019-05-23 11:24:02,967 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 353 [2019-05-23 11:24:02,967 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:02,968 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:02,968 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:02,968 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:02,968 INFO L146 ILogger]: Analyzing trace with hash 1596496368, now seen corresponding path program 12 times [2019-05-23 11:24:02,969 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:02,969 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:02,970 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:02,970 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:02,970 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:02,997 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:05,231 INFO L146 ILogger]: Checked inductivity of 950 backedges. 0 proven. 559 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2019-05-23 11:24:05,231 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:05,231 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:05,239 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:24:05,519 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2019-05-23 11:24:05,519 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:05,521 INFO L146 ILogger]: Trace formula consists of 435 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:24:05,525 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:06,921 INFO L146 ILogger]: Checked inductivity of 950 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2019-05-23 11:24:06,940 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:06,941 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 11] total 38 [2019-05-23 11:24:06,941 INFO L146 ILogger]: Interpolant automaton has 38 states [2019-05-23 11:24:06,942 INFO L146 ILogger]: Constructing interpolant automaton starting with 38 interpolants. [2019-05-23 11:24:06,942 INFO L146 ILogger]: CoverageRelationStatistics Valid=258, Invalid=1148, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 11:24:06,943 INFO L146 ILogger]: Start difference. First operand 383 states and 402 transitions. Second operand 38 states. [2019-05-23 11:24:07,884 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:07,885 INFO L146 ILogger]: Finished difference Result 688 states and 727 transitions. [2019-05-23 11:24:07,885 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-05-23 11:24:07,885 INFO L146 ILogger]: Start accepts. Automaton has 38 states. Word has length 352 [2019-05-23 11:24:07,885 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:07,887 INFO L146 ILogger]: With dead ends: 688 [2019-05-23 11:24:07,887 INFO L146 ILogger]: Without dead ends: 407 [2019-05-23 11:24:07,890 INFO L146 ILogger]: 0 DeclaredPredicates, 414 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1100, Invalid=4012, Unknown=0, NotChecked=0, Total=5112 [2019-05-23 11:24:07,891 INFO L146 ILogger]: Start minimizeSevpa. Operand 407 states. [2019-05-23 11:24:07,896 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 407 to 397. [2019-05-23 11:24:07,897 INFO L146 ILogger]: Start removeUnreachable. Operand 397 states. [2019-05-23 11:24:07,898 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 397 states to 397 states and 416 transitions. [2019-05-23 11:24:07,898 INFO L146 ILogger]: Start accepts. Automaton has 397 states and 416 transitions. Word has length 352 [2019-05-23 11:24:07,898 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:07,898 INFO L146 ILogger]: Abstraction has 397 states and 416 transitions. [2019-05-23 11:24:07,898 INFO L146 ILogger]: Interpolant automaton has 38 states. [2019-05-23 11:24:07,899 INFO L146 ILogger]: Start isEmpty. Operand 397 states and 416 transitions. [2019-05-23 11:24:07,900 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 367 [2019-05-23 11:24:07,901 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:07,901 INFO L146 ILogger]: trace histogram [14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:07,901 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:07,901 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:07,902 INFO L146 ILogger]: Analyzing trace with hash 1067869003, now seen corresponding path program 13 times [2019-05-23 11:24:07,902 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:07,902 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:07,902 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:07,903 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:07,903 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:07,928 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:09,578 INFO L146 ILogger]: Checked inductivity of 1071 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-05-23 11:24:09,578 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:09,578 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:09,596 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:09,674 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:09,675 INFO L146 ILogger]: Trace formula consists of 553 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 11:24:09,680 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:09,907 INFO L146 ILogger]: Checked inductivity of 1071 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-05-23 11:24:09,926 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:09,926 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2019-05-23 11:24:09,927 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:24:09,927 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:24:09,928 INFO L146 ILogger]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:24:09,928 INFO L146 ILogger]: Start difference. First operand 397 states and 416 transitions. Second operand 33 states. [2019-05-23 11:24:10,510 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:10,511 INFO L146 ILogger]: Finished difference Result 697 states and 735 transitions. [2019-05-23 11:24:10,520 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-05-23 11:24:10,520 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 366 [2019-05-23 11:24:10,520 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:10,522 INFO L146 ILogger]: With dead ends: 697 [2019-05-23 11:24:10,522 INFO L146 ILogger]: Without dead ends: 409 [2019-05-23 11:24:10,524 INFO L146 ILogger]: 0 DeclaredPredicates, 424 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1159, Invalid=2501, Unknown=0, NotChecked=0, Total=3660 [2019-05-23 11:24:10,525 INFO L146 ILogger]: Start minimizeSevpa. Operand 409 states. [2019-05-23 11:24:10,530 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 409 to 404. [2019-05-23 11:24:10,530 INFO L146 ILogger]: Start removeUnreachable. Operand 404 states. [2019-05-23 11:24:10,531 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 404 states to 404 states and 423 transitions. [2019-05-23 11:24:10,531 INFO L146 ILogger]: Start accepts. Automaton has 404 states and 423 transitions. Word has length 366 [2019-05-23 11:24:10,532 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:10,532 INFO L146 ILogger]: Abstraction has 404 states and 423 transitions. [2019-05-23 11:24:10,532 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:24:10,532 INFO L146 ILogger]: Start isEmpty. Operand 404 states and 423 transitions. [2019-05-23 11:24:10,534 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 374 [2019-05-23 11:24:10,534 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:10,535 INFO L146 ILogger]: trace histogram [15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:10,535 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:10,535 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:10,535 INFO L146 ILogger]: Analyzing trace with hash 136937109, now seen corresponding path program 14 times [2019-05-23 11:24:10,536 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:10,536 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:10,536 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:10,536 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:10,537 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:10,563 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:11,556 INFO L146 ILogger]: Checked inductivity of 1170 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-05-23 11:24:11,556 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:11,556 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:11,564 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:24:11,646 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:24:11,646 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:11,647 INFO L146 ILogger]: Trace formula consists of 563 conjuncts, 32 conjunts are in the unsatisfiable core [2019-05-23 11:24:11,651 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:11,786 INFO L146 ILogger]: Checked inductivity of 1170 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-05-23 11:24:11,807 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:11,807 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2019-05-23 11:24:11,808 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:24:11,808 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:24:11,809 INFO L146 ILogger]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:24:11,809 INFO L146 ILogger]: Start difference. First operand 404 states and 423 transitions. Second operand 35 states. [2019-05-23 11:24:12,515 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:12,515 INFO L146 ILogger]: Finished difference Result 704 states and 742 transitions. [2019-05-23 11:24:12,521 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-05-23 11:24:12,521 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 373 [2019-05-23 11:24:12,521 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:12,523 INFO L146 ILogger]: With dead ends: 704 [2019-05-23 11:24:12,523 INFO L146 ILogger]: Without dead ends: 416 [2019-05-23 11:24:12,525 INFO L146 ILogger]: 0 DeclaredPredicates, 435 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1316, Invalid=2844, Unknown=0, NotChecked=0, Total=4160 [2019-05-23 11:24:12,526 INFO L146 ILogger]: Start minimizeSevpa. Operand 416 states. [2019-05-23 11:24:12,533 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 416 to 411. [2019-05-23 11:24:12,533 INFO L146 ILogger]: Start removeUnreachable. Operand 411 states. [2019-05-23 11:24:12,535 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 411 states to 411 states and 430 transitions. [2019-05-23 11:24:12,535 INFO L146 ILogger]: Start accepts. Automaton has 411 states and 430 transitions. Word has length 373 [2019-05-23 11:24:12,535 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:12,535 INFO L146 ILogger]: Abstraction has 411 states and 430 transitions. [2019-05-23 11:24:12,535 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:24:12,536 INFO L146 ILogger]: Start isEmpty. Operand 411 states and 430 transitions. [2019-05-23 11:24:12,539 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 381 [2019-05-23 11:24:12,539 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:12,539 INFO L146 ILogger]: trace histogram [16, 16, 16, 16, 16, 16, 16, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:12,540 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:12,540 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:12,540 INFO L146 ILogger]: Analyzing trace with hash -48694261, now seen corresponding path program 15 times [2019-05-23 11:24:12,540 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:12,540 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:12,541 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:12,541 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:12,541 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:12,573 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:13,274 INFO L146 ILogger]: Checked inductivity of 1276 backedges. 0 proven. 856 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-05-23 11:24:13,274 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:13,274 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:13,283 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:24:13,437 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-05-23 11:24:13,438 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:13,440 INFO L146 ILogger]: Trace formula consists of 463 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:24:13,444 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:13,796 INFO L146 ILogger]: Checked inductivity of 1276 backedges. 29 proven. 115 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2019-05-23 11:24:13,815 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:13,815 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 16] total 49 [2019-05-23 11:24:13,816 INFO L146 ILogger]: Interpolant automaton has 49 states [2019-05-23 11:24:13,816 INFO L146 ILogger]: Constructing interpolant automaton starting with 49 interpolants. [2019-05-23 11:24:13,817 INFO L146 ILogger]: CoverageRelationStatistics Valid=377, Invalid=1975, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:24:13,817 INFO L146 ILogger]: Start difference. First operand 411 states and 430 transitions. Second operand 49 states. [2019-05-23 11:24:16,216 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:16,216 INFO L146 ILogger]: Finished difference Result 783 states and 830 transitions. [2019-05-23 11:24:16,216 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2019-05-23 11:24:16,216 INFO L146 ILogger]: Start accepts. Automaton has 49 states. Word has length 380 [2019-05-23 11:24:16,217 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:16,218 INFO L146 ILogger]: With dead ends: 783 [2019-05-23 11:24:16,218 INFO L146 ILogger]: Without dead ends: 495 [2019-05-23 11:24:16,222 INFO L146 ILogger]: 0 DeclaredPredicates, 474 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2475 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1921, Invalid=9851, Unknown=0, NotChecked=0, Total=11772 [2019-05-23 11:24:16,223 INFO L146 ILogger]: Start minimizeSevpa. Operand 495 states. [2019-05-23 11:24:16,231 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 495 to 457. [2019-05-23 11:24:16,231 INFO L146 ILogger]: Start removeUnreachable. Operand 457 states. [2019-05-23 11:24:16,246 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 457 states to 457 states and 479 transitions. [2019-05-23 11:24:16,246 INFO L146 ILogger]: Start accepts. Automaton has 457 states and 479 transitions. Word has length 380 [2019-05-23 11:24:16,246 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:16,247 INFO L146 ILogger]: Abstraction has 457 states and 479 transitions. [2019-05-23 11:24:16,247 INFO L146 ILogger]: Interpolant automaton has 49 states. [2019-05-23 11:24:16,247 INFO L146 ILogger]: Start isEmpty. Operand 457 states and 479 transitions. [2019-05-23 11:24:16,249 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 421 [2019-05-23 11:24:16,250 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:16,250 INFO L146 ILogger]: trace histogram [17, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:16,250 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:16,251 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:16,251 INFO L146 ILogger]: Analyzing trace with hash -1578466040, now seen corresponding path program 16 times [2019-05-23 11:24:16,251 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:16,251 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:16,252 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:16,252 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:16,252 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:16,280 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:17,141 INFO L146 ILogger]: Checked inductivity of 1557 backedges. 0 proven. 969 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2019-05-23 11:24:17,142 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:17,142 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:17,151 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:24:17,412 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:24:17,413 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:17,415 INFO L146 ILogger]: Trace formula consists of 631 conjuncts, 36 conjunts are in the unsatisfiable core [2019-05-23 11:24:17,419 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:17,637 INFO L146 ILogger]: Checked inductivity of 1557 backedges. 0 proven. 969 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2019-05-23 11:24:17,656 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:17,657 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2019-05-23 11:24:17,657 INFO L146 ILogger]: Interpolant automaton has 39 states [2019-05-23 11:24:17,657 INFO L146 ILogger]: Constructing interpolant automaton starting with 39 interpolants. [2019-05-23 11:24:17,658 INFO L146 ILogger]: CoverageRelationStatistics Valid=399, Invalid=1083, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:24:17,658 INFO L146 ILogger]: Start difference. First operand 457 states and 479 transitions. Second operand 39 states. [2019-05-23 11:24:18,524 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:18,525 INFO L146 ILogger]: Finished difference Result 796 states and 840 transitions. [2019-05-23 11:24:18,526 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-05-23 11:24:18,526 INFO L146 ILogger]: Start accepts. Automaton has 39 states. Word has length 420 [2019-05-23 11:24:18,526 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:18,529 INFO L146 ILogger]: With dead ends: 796 [2019-05-23 11:24:18,529 INFO L146 ILogger]: Without dead ends: 469 [2019-05-23 11:24:18,531 INFO L146 ILogger]: 0 DeclaredPredicates, 490 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1660, Invalid=3596, Unknown=0, NotChecked=0, Total=5256 [2019-05-23 11:24:18,534 INFO L146 ILogger]: Start minimizeSevpa. Operand 469 states. [2019-05-23 11:24:18,540 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 469 to 464. [2019-05-23 11:24:18,540 INFO L146 ILogger]: Start removeUnreachable. Operand 464 states. [2019-05-23 11:24:18,541 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 464 states to 464 states and 486 transitions. [2019-05-23 11:24:18,541 INFO L146 ILogger]: Start accepts. Automaton has 464 states and 486 transitions. Word has length 420 [2019-05-23 11:24:18,541 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:18,541 INFO L146 ILogger]: Abstraction has 464 states and 486 transitions. [2019-05-23 11:24:18,541 INFO L146 ILogger]: Interpolant automaton has 39 states. [2019-05-23 11:24:18,542 INFO L146 ILogger]: Start isEmpty. Operand 464 states and 486 transitions. [2019-05-23 11:24:18,544 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 428 [2019-05-23 11:24:18,544 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:18,544 INFO L146 ILogger]: trace histogram [18, 18, 18, 18, 18, 18, 18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:18,545 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:18,545 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:18,545 INFO L146 ILogger]: Analyzing trace with hash -510917422, now seen corresponding path program 17 times [2019-05-23 11:24:18,545 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:18,545 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:18,546 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:18,546 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:18,546 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:18,585 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:19,192 INFO L146 ILogger]: Checked inductivity of 1677 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2019-05-23 11:24:19,193 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:19,193 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:19,201 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:24:19,815 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2019-05-23 11:24:19,816 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:19,819 INFO L146 ILogger]: Trace formula consists of 641 conjuncts, 38 conjunts are in the unsatisfiable core [2019-05-23 11:24:19,823 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:20,005 INFO L146 ILogger]: Checked inductivity of 1677 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2019-05-23 11:24:20,032 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:20,032 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2019-05-23 11:24:20,032 INFO L146 ILogger]: Interpolant automaton has 41 states [2019-05-23 11:24:20,033 INFO L146 ILogger]: Constructing interpolant automaton starting with 41 interpolants. [2019-05-23 11:24:20,033 INFO L146 ILogger]: CoverageRelationStatistics Valid=440, Invalid=1200, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 11:24:20,033 INFO L146 ILogger]: Start difference. First operand 464 states and 486 transitions. Second operand 41 states. [2019-05-23 11:24:21,097 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:21,097 INFO L146 ILogger]: Finished difference Result 803 states and 847 transitions. [2019-05-23 11:24:21,097 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-05-23 11:24:21,097 INFO L146 ILogger]: Start accepts. Automaton has 41 states. Word has length 427 [2019-05-23 11:24:21,098 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:21,099 INFO L146 ILogger]: With dead ends: 803 [2019-05-23 11:24:21,099 INFO L146 ILogger]: Without dead ends: 476 [2019-05-23 11:24:21,101 INFO L146 ILogger]: 0 DeclaredPredicates, 501 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1847, Invalid=4005, Unknown=0, NotChecked=0, Total=5852 [2019-05-23 11:24:21,101 INFO L146 ILogger]: Start minimizeSevpa. Operand 476 states. [2019-05-23 11:24:21,107 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 476 to 471. [2019-05-23 11:24:21,107 INFO L146 ILogger]: Start removeUnreachable. Operand 471 states. [2019-05-23 11:24:21,108 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 471 states to 471 states and 493 transitions. [2019-05-23 11:24:21,108 INFO L146 ILogger]: Start accepts. Automaton has 471 states and 493 transitions. Word has length 427 [2019-05-23 11:24:21,108 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:21,108 INFO L146 ILogger]: Abstraction has 471 states and 493 transitions. [2019-05-23 11:24:21,108 INFO L146 ILogger]: Interpolant automaton has 41 states. [2019-05-23 11:24:21,108 INFO L146 ILogger]: Start isEmpty. Operand 471 states and 493 transitions. [2019-05-23 11:24:21,111 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 435 [2019-05-23 11:24:21,111 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:21,111 INFO L146 ILogger]: trace histogram [19, 19, 19, 19, 19, 19, 19, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:21,112 INFO L146 ILogger]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:21,112 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:21,112 INFO L146 ILogger]: Analyzing trace with hash -1480913464, now seen corresponding path program 18 times [2019-05-23 11:24:21,112 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:21,112 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:21,113 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:21,113 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:21,113 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:21,142 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:21,848 INFO L146 ILogger]: Checked inductivity of 1804 backedges. 0 proven. 1216 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2019-05-23 11:24:21,849 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:21,849 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:21,858 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:24:22,704 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2019-05-23 11:24:22,704 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:22,707 INFO L146 ILogger]: Trace formula consists of 513 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:24:22,711 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:23,044 INFO L146 ILogger]: Checked inductivity of 1804 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2019-05-23 11:24:23,063 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:23,064 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 13] total 52 [2019-05-23 11:24:23,064 INFO L146 ILogger]: Interpolant automaton has 52 states [2019-05-23 11:24:23,064 INFO L146 ILogger]: Constructing interpolant automaton starting with 52 interpolants. [2019-05-23 11:24:23,065 INFO L146 ILogger]: CoverageRelationStatistics Valid=487, Invalid=2165, Unknown=0, NotChecked=0, Total=2652 [2019-05-23 11:24:23,065 INFO L146 ILogger]: Start difference. First operand 471 states and 493 transitions. Second operand 52 states. [2019-05-23 11:24:24,626 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:24,627 INFO L146 ILogger]: Finished difference Result 822 states and 867 transitions. [2019-05-23 11:24:24,627 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2019-05-23 11:24:24,627 INFO L146 ILogger]: Start accepts. Automaton has 52 states. Word has length 434 [2019-05-23 11:24:24,627 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:24,629 INFO L146 ILogger]: With dead ends: 822 [2019-05-23 11:24:24,629 INFO L146 ILogger]: Without dead ends: 495 [2019-05-23 11:24:24,631 INFO L146 ILogger]: 0 DeclaredPredicates, 522 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1897 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2175, Invalid=7725, Unknown=0, NotChecked=0, Total=9900 [2019-05-23 11:24:24,631 INFO L146 ILogger]: Start minimizeSevpa. Operand 495 states. [2019-05-23 11:24:24,637 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 495 to 485. [2019-05-23 11:24:24,637 INFO L146 ILogger]: Start removeUnreachable. Operand 485 states. [2019-05-23 11:24:24,638 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 485 states to 485 states and 507 transitions. [2019-05-23 11:24:24,638 INFO L146 ILogger]: Start accepts. Automaton has 485 states and 507 transitions. Word has length 434 [2019-05-23 11:24:24,638 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:24,638 INFO L146 ILogger]: Abstraction has 485 states and 507 transitions. [2019-05-23 11:24:24,639 INFO L146 ILogger]: Interpolant automaton has 52 states. [2019-05-23 11:24:24,639 INFO L146 ILogger]: Start isEmpty. Operand 485 states and 507 transitions. [2019-05-23 11:24:24,641 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 449 [2019-05-23 11:24:24,641 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:24,642 INFO L146 ILogger]: trace histogram [20, 20, 20, 20, 20, 20, 20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:24,642 INFO L146 ILogger]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:24,642 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:24,642 INFO L146 ILogger]: Analyzing trace with hash 1322911855, now seen corresponding path program 19 times [2019-05-23 11:24:24,642 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:24,643 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:24,643 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:24,644 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:24,644 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:24,673 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:25,367 INFO L146 ILogger]: Checked inductivity of 1974 backedges. 0 proven. 1350 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2019-05-23 11:24:25,367 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:25,368 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:25,376 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:25,494 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:25,497 INFO L146 ILogger]: Trace formula consists of 671 conjuncts, 42 conjunts are in the unsatisfiable core [2019-05-23 11:24:25,503 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:25,835 INFO L146 ILogger]: Checked inductivity of 1974 backedges. 0 proven. 1350 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2019-05-23 11:24:25,888 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:25,888 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2019-05-23 11:24:25,890 INFO L146 ILogger]: Interpolant automaton has 45 states [2019-05-23 11:24:25,890 INFO L146 ILogger]: Constructing interpolant automaton starting with 45 interpolants. [2019-05-23 11:24:25,890 INFO L146 ILogger]: CoverageRelationStatistics Valid=528, Invalid=1452, Unknown=0, NotChecked=0, Total=1980 [2019-05-23 11:24:25,891 INFO L146 ILogger]: Start difference. First operand 485 states and 507 transitions. Second operand 45 states. [2019-05-23 11:24:28,179 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:28,180 INFO L146 ILogger]: Finished difference Result 831 states and 875 transitions. [2019-05-23 11:24:28,183 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-05-23 11:24:28,183 INFO L146 ILogger]: Start accepts. Automaton has 45 states. Word has length 448 [2019-05-23 11:24:28,183 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:28,186 INFO L146 ILogger]: With dead ends: 831 [2019-05-23 11:24:28,186 INFO L146 ILogger]: Without dead ends: 497 [2019-05-23 11:24:28,188 INFO L146 ILogger]: 0 DeclaredPredicates, 530 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2251, Invalid=4889, Unknown=0, NotChecked=0, Total=7140 [2019-05-23 11:24:28,189 INFO L146 ILogger]: Start minimizeSevpa. Operand 497 states. [2019-05-23 11:24:28,194 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 497 to 492. [2019-05-23 11:24:28,194 INFO L146 ILogger]: Start removeUnreachable. Operand 492 states. [2019-05-23 11:24:28,195 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 492 states to 492 states and 514 transitions. [2019-05-23 11:24:28,195 INFO L146 ILogger]: Start accepts. Automaton has 492 states and 514 transitions. Word has length 448 [2019-05-23 11:24:28,195 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:28,195 INFO L146 ILogger]: Abstraction has 492 states and 514 transitions. [2019-05-23 11:24:28,196 INFO L146 ILogger]: Interpolant automaton has 45 states. [2019-05-23 11:24:28,196 INFO L146 ILogger]: Start isEmpty. Operand 492 states and 514 transitions. [2019-05-23 11:24:28,198 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 456 [2019-05-23 11:24:28,198 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:28,199 INFO L146 ILogger]: trace histogram [21, 21, 21, 21, 21, 21, 21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:28,199 INFO L146 ILogger]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:28,199 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:28,200 INFO L146 ILogger]: Analyzing trace with hash -27175623, now seen corresponding path program 20 times [2019-05-23 11:24:28,201 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:28,201 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:28,201 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:28,201 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:28,202 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:28,234 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:29,059 INFO L146 ILogger]: Checked inductivity of 2115 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2019-05-23 11:24:29,059 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:29,059 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:29,067 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:24:29,167 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:24:29,168 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:29,169 INFO L146 ILogger]: Trace formula consists of 681 conjuncts, 44 conjunts are in the unsatisfiable core [2019-05-23 11:24:29,185 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:29,302 INFO L146 ILogger]: Checked inductivity of 2115 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2019-05-23 11:24:29,322 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:29,322 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2019-05-23 11:24:29,323 INFO L146 ILogger]: Interpolant automaton has 47 states [2019-05-23 11:24:29,323 INFO L146 ILogger]: Constructing interpolant automaton starting with 47 interpolants. [2019-05-23 11:24:29,323 INFO L146 ILogger]: CoverageRelationStatistics Valid=575, Invalid=1587, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 11:24:29,323 INFO L146 ILogger]: Start difference. First operand 492 states and 514 transitions. Second operand 47 states. [2019-05-23 11:24:30,460 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:30,460 INFO L146 ILogger]: Finished difference Result 838 states and 882 transitions. [2019-05-23 11:24:30,460 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-05-23 11:24:30,460 INFO L146 ILogger]: Start accepts. Automaton has 47 states. Word has length 455 [2019-05-23 11:24:30,461 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:30,462 INFO L146 ILogger]: With dead ends: 838 [2019-05-23 11:24:30,463 INFO L146 ILogger]: Without dead ends: 504 [2019-05-23 11:24:30,464 INFO L146 ILogger]: 0 DeclaredPredicates, 541 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1479 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2468, Invalid=5364, Unknown=0, NotChecked=0, Total=7832 [2019-05-23 11:24:30,464 INFO L146 ILogger]: Start minimizeSevpa. Operand 504 states. [2019-05-23 11:24:30,470 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 504 to 499. [2019-05-23 11:24:30,470 INFO L146 ILogger]: Start removeUnreachable. Operand 499 states. [2019-05-23 11:24:30,471 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 499 states to 499 states and 521 transitions. [2019-05-23 11:24:30,471 INFO L146 ILogger]: Start accepts. Automaton has 499 states and 521 transitions. Word has length 455 [2019-05-23 11:24:30,471 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:30,471 INFO L146 ILogger]: Abstraction has 499 states and 521 transitions. [2019-05-23 11:24:30,471 INFO L146 ILogger]: Interpolant automaton has 47 states. [2019-05-23 11:24:30,472 INFO L146 ILogger]: Start isEmpty. Operand 499 states and 521 transitions. [2019-05-23 11:24:30,474 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 463 [2019-05-23 11:24:30,474 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:30,475 INFO L146 ILogger]: trace histogram [22, 22, 22, 22, 22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:30,475 INFO L146 ILogger]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:30,475 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:30,475 INFO L146 ILogger]: Analyzing trace with hash -369495761, now seen corresponding path program 21 times [2019-05-23 11:24:30,476 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:30,476 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:30,476 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:30,477 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:30,477 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:30,511 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:31,799 INFO L146 ILogger]: Checked inductivity of 2263 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2019-05-23 11:24:31,799 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:31,799 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:31,808 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:24:32,017 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2019-05-23 11:24:32,017 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:32,019 INFO L146 ILogger]: Trace formula consists of 531 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:24:32,023 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:32,691 INFO L146 ILogger]: Checked inductivity of 2263 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 2092 trivial. 0 not checked. [2019-05-23 11:24:32,710 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:32,710 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 15] total 60 [2019-05-23 11:24:32,711 INFO L146 ILogger]: Interpolant automaton has 60 states [2019-05-23 11:24:32,711 INFO L146 ILogger]: Constructing interpolant automaton starting with 60 interpolants. [2019-05-23 11:24:32,712 INFO L146 ILogger]: CoverageRelationStatistics Valid=637, Invalid=2903, Unknown=0, NotChecked=0, Total=3540 [2019-05-23 11:24:32,712 INFO L146 ILogger]: Start difference. First operand 499 states and 521 transitions. Second operand 60 states. [2019-05-23 11:24:35,360 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:35,361 INFO L146 ILogger]: Finished difference Result 917 states and 970 transitions. [2019-05-23 11:24:35,361 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2019-05-23 11:24:35,361 INFO L146 ILogger]: Start accepts. Automaton has 60 states. Word has length 462 [2019-05-23 11:24:35,361 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:35,363 INFO L146 ILogger]: With dead ends: 917 [2019-05-23 11:24:35,363 INFO L146 ILogger]: Without dead ends: 583 [2019-05-23 11:24:35,365 INFO L146 ILogger]: 0 DeclaredPredicates, 576 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2591 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2885, Invalid=10455, Unknown=0, NotChecked=0, Total=13340 [2019-05-23 11:24:35,366 INFO L146 ILogger]: Start minimizeSevpa. Operand 583 states. [2019-05-23 11:24:35,372 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 583 to 545. [2019-05-23 11:24:35,372 INFO L146 ILogger]: Start removeUnreachable. Operand 545 states. [2019-05-23 11:24:35,373 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 545 states to 545 states and 570 transitions. [2019-05-23 11:24:35,373 INFO L146 ILogger]: Start accepts. Automaton has 545 states and 570 transitions. Word has length 462 [2019-05-23 11:24:35,374 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:35,374 INFO L146 ILogger]: Abstraction has 545 states and 570 transitions. [2019-05-23 11:24:35,374 INFO L146 ILogger]: Interpolant automaton has 60 states. [2019-05-23 11:24:35,374 INFO L146 ILogger]: Start isEmpty. Operand 545 states and 570 transitions. [2019-05-23 11:24:35,377 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 503 [2019-05-23 11:24:35,377 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:35,377 INFO L146 ILogger]: trace histogram [23, 23, 23, 23, 23, 23, 23, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:35,378 INFO L146 ILogger]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:35,378 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:35,378 INFO L146 ILogger]: Analyzing trace with hash -481130320, now seen corresponding path program 22 times [2019-05-23 11:24:35,378 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:35,378 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:35,379 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:35,379 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:35,379 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:35,411 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:37,054 INFO L146 ILogger]: Checked inductivity of 2619 backedges. 0 proven. 1794 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2019-05-23 11:24:37,055 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:37,055 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:37,063 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:24:37,466 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:24:37,466 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:37,469 INFO L146 ILogger]: Trace formula consists of 749 conjuncts, 48 conjunts are in the unsatisfiable core [2019-05-23 11:24:37,474 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:37,649 INFO L146 ILogger]: Checked inductivity of 2619 backedges. 0 proven. 1794 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2019-05-23 11:24:37,669 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:37,669 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2019-05-23 11:24:37,670 INFO L146 ILogger]: Interpolant automaton has 51 states [2019-05-23 11:24:37,670 INFO L146 ILogger]: Constructing interpolant automaton starting with 51 interpolants. [2019-05-23 11:24:37,670 INFO L146 ILogger]: CoverageRelationStatistics Valid=675, Invalid=1875, Unknown=0, NotChecked=0, Total=2550 [2019-05-23 11:24:37,671 INFO L146 ILogger]: Start difference. First operand 545 states and 570 transitions. Second operand 51 states. [2019-05-23 11:24:38,979 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:38,979 INFO L146 ILogger]: Finished difference Result 930 states and 980 transitions. [2019-05-23 11:24:38,979 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2019-05-23 11:24:38,979 INFO L146 ILogger]: Start accepts. Automaton has 51 states. Word has length 502 [2019-05-23 11:24:38,980 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:38,981 INFO L146 ILogger]: With dead ends: 930 [2019-05-23 11:24:38,981 INFO L146 ILogger]: Without dead ends: 557 [2019-05-23 11:24:38,983 INFO L146 ILogger]: 0 DeclaredPredicates, 596 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1759 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2932, Invalid=6380, Unknown=0, NotChecked=0, Total=9312 [2019-05-23 11:24:38,983 INFO L146 ILogger]: Start minimizeSevpa. Operand 557 states. [2019-05-23 11:24:38,989 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 557 to 552. [2019-05-23 11:24:38,989 INFO L146 ILogger]: Start removeUnreachable. Operand 552 states. [2019-05-23 11:24:38,990 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 552 states to 552 states and 577 transitions. [2019-05-23 11:24:38,990 INFO L146 ILogger]: Start accepts. Automaton has 552 states and 577 transitions. Word has length 502 [2019-05-23 11:24:38,990 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:38,990 INFO L146 ILogger]: Abstraction has 552 states and 577 transitions. [2019-05-23 11:24:38,990 INFO L146 ILogger]: Interpolant automaton has 51 states. [2019-05-23 11:24:38,990 INFO L146 ILogger]: Start isEmpty. Operand 552 states and 577 transitions. [2019-05-23 11:24:38,993 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 510 [2019-05-23 11:24:38,994 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:38,994 INFO L146 ILogger]: trace histogram [24, 24, 24, 24, 24, 24, 24, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:38,994 INFO L146 ILogger]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:38,994 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:38,995 INFO L146 ILogger]: Analyzing trace with hash -311158278, now seen corresponding path program 23 times [2019-05-23 11:24:38,995 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:38,995 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:38,996 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:38,996 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:38,996 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:39,029 INFO L146 ILogger]: Conjunction of SSA is unsat