java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-examples/relax_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:16:29,891 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:16:29,893 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:16:29,906 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:16:29,906 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:16:29,907 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:16:29,909 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:16:29,911 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:16:29,913 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:16:29,914 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:16:29,915 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:16:29,915 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:16:29,916 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:16:29,917 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:16:29,919 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:16:29,920 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:16:29,921 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:16:29,922 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:16:29,925 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:16:29,926 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:16:29,928 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:16:29,929 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:16:29,932 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:16:29,932 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:16:29,932 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:16:29,933 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:16:29,934 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:16:29,935 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:16:29,935 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:16:29,936 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:16:29,940 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:16:29,941 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:16:29,943 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:16:29,943 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:16:29,944 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:16:29,944 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:16:29,944 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:16:29,945 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:16:29,946 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:16:29,946 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:16:29,970 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:16:29,970 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:16:29,973 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:16:29,973 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:16:29,973 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:16:29,974 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:16:29,975 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:16:29,975 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:16:29,975 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:16:29,975 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:16:29,976 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:16:29,976 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:16:29,976 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:16:29,976 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:16:29,976 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:16:29,978 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:16:29,978 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:16:29,978 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:16:29,978 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:16:29,979 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:16:29,979 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:16:29,979 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:16:29,979 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:16:29,979 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:16:29,980 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:16:29,980 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:16:29,981 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:16:29,981 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:16:29,981 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 11:16:30,038 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:16:30,052 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:16:30,058 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:16:30,060 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:16:30,060 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:16:30,061 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/relax_true-unreach-call.i [2019-05-23 11:16:30,132 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67040b7ab/33d8952a5e1c47febcfa037fd9af9266/FLAG74041a0c7 [2019-05-23 11:16:30,675 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:16:30,678 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/relax_true-unreach-call.i [2019-05-23 11:16:30,697 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67040b7ab/33d8952a5e1c47febcfa037fd9af9266/FLAG74041a0c7 [2019-05-23 11:16:30,932 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67040b7ab/33d8952a5e1c47febcfa037fd9af9266 [2019-05-23 11:16:30,941 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:16:30,943 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:16:30,944 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:16:30,944 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:16:30,948 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:16:30,949 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:16:30" (1/1) ... [2019-05-23 11:16:30,952 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc0e866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:30, skipping insertion in model container [2019-05-23 11:16:30,952 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:16:30" (1/1) ... [2019-05-23 11:16:30,960 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:16:31,006 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:16:31,474 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:16:31,494 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:16:31,682 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:16:31,743 INFO L146 ILogger]: Completed translation [2019-05-23 11:16:31,744 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31 WrapperNode [2019-05-23 11:16:31,744 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:16:31,745 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:16:31,745 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:16:31,746 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:16:31,756 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,773 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,810 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:16:31,810 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:16:31,810 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:16:31,811 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:16:31,820 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,821 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,825 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,826 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,835 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,842 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,845 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (1/1) ... [2019-05-23 11:16:31,848 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:16:31,849 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:16:31,849 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:16:31,849 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:16:31,850 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (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 11:16:31,917 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:16:31,917 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:16:31,917 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnHeap [2019-05-23 11:16:31,918 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:16:31,918 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:16:32,838 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:16:32,838 INFO L146 ILogger]: Removed 17 assume(true) statements. [2019-05-23 11:16:32,840 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:16:32 BoogieIcfgContainer [2019-05-23 11:16:32,840 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:16:32,841 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:16:32,841 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:16:32,845 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:16:32,845 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:16:30" (1/3) ... [2019-05-23 11:16:32,846 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c877a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:16:32, skipping insertion in model container [2019-05-23 11:16:32,846 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:16:31" (2/3) ... [2019-05-23 11:16:32,846 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c877a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:16:32, skipping insertion in model container [2019-05-23 11:16:32,847 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:16:32" (3/3) ... [2019-05-23 11:16:32,848 INFO L146 ILogger]: Analyzing ICFG relax_true-unreach-call.i [2019-05-23 11:16:32,859 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:16:32,867 INFO L146 ILogger]: Appying trace abstraction to program that has 3 error locations. [2019-05-23 11:16:32,884 INFO L146 ILogger]: Starting to check reachability of 3 error locations. [2019-05-23 11:16:32,912 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:16:32,913 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:16:32,913 INFO L146 ILogger]: Hoare is true [2019-05-23 11:16:32,913 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:16:32,914 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:16:32,914 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:16:32,914 INFO L146 ILogger]: Difference is false [2019-05-23 11:16:32,914 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:16:32,914 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:16:32,932 INFO L146 ILogger]: Start isEmpty. Operand 129 states. [2019-05-23 11:16:32,941 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 34 [2019-05-23 11:16:32,942 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:32,943 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] [2019-05-23 11:16:32,945 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:32,950 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:32,950 INFO L146 ILogger]: Analyzing trace with hash -1797408288, now seen corresponding path program 1 times [2019-05-23 11:16:32,952 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:32,952 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:32,996 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:32,996 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:32,996 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:33,037 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:33,105 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 11:16:33,110 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:33,110 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:16:33,114 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:16:33,128 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:16:33,129 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:16:33,131 INFO L146 ILogger]: Start difference. First operand 129 states. Second operand 2 states. [2019-05-23 11:16:33,161 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:33,162 INFO L146 ILogger]: Finished difference Result 238 states and 284 transitions. [2019-05-23 11:16:33,162 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:16:33,164 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 33 [2019-05-23 11:16:33,164 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:33,177 INFO L146 ILogger]: With dead ends: 238 [2019-05-23 11:16:33,177 INFO L146 ILogger]: Without dead ends: 125 [2019-05-23 11:16:33,181 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:16:33,197 INFO L146 ILogger]: Start minimizeSevpa. Operand 125 states. [2019-05-23 11:16:33,218 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-05-23 11:16:33,219 INFO L146 ILogger]: Start removeUnreachable. Operand 125 states. [2019-05-23 11:16:33,221 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2019-05-23 11:16:33,223 INFO L146 ILogger]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 33 [2019-05-23 11:16:33,224 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:33,224 INFO L146 ILogger]: Abstraction has 125 states and 139 transitions. [2019-05-23 11:16:33,224 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:16:33,224 INFO L146 ILogger]: Start isEmpty. Operand 125 states and 139 transitions. [2019-05-23 11:16:33,226 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 34 [2019-05-23 11:16:33,226 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:33,226 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] [2019-05-23 11:16:33,227 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:33,227 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:33,227 INFO L146 ILogger]: Analyzing trace with hash 580453003, now seen corresponding path program 1 times [2019-05-23 11:16:33,227 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:33,228 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:33,230 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:33,230 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:33,230 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:33,284 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:33,377 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 11:16:33,378 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:33,378 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:16:33,379 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:16:33,380 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:16:33,380 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:16:33,380 INFO L146 ILogger]: Start difference. First operand 125 states and 139 transitions. Second operand 4 states. [2019-05-23 11:16:33,505 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:33,505 INFO L146 ILogger]: Finished difference Result 194 states and 215 transitions. [2019-05-23 11:16:33,506 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:16:33,506 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 33 [2019-05-23 11:16:33,506 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:33,508 INFO L146 ILogger]: With dead ends: 194 [2019-05-23 11:16:33,508 INFO L146 ILogger]: Without dead ends: 155 [2019-05-23 11:16:33,510 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:16:33,510 INFO L146 ILogger]: Start minimizeSevpa. Operand 155 states. [2019-05-23 11:16:33,522 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 155 to 127. [2019-05-23 11:16:33,522 INFO L146 ILogger]: Start removeUnreachable. Operand 127 states. [2019-05-23 11:16:33,525 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 127 states to 127 states and 141 transitions. [2019-05-23 11:16:33,525 INFO L146 ILogger]: Start accepts. Automaton has 127 states and 141 transitions. Word has length 33 [2019-05-23 11:16:33,526 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:33,526 INFO L146 ILogger]: Abstraction has 127 states and 141 transitions. [2019-05-23 11:16:33,526 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:16:33,526 INFO L146 ILogger]: Start isEmpty. Operand 127 states and 141 transitions. [2019-05-23 11:16:33,528 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 38 [2019-05-23 11:16:33,529 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:33,529 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] [2019-05-23 11:16:33,529 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:33,530 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:33,530 INFO L146 ILogger]: Analyzing trace with hash 726875570, now seen corresponding path program 1 times [2019-05-23 11:16:33,530 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:33,530 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:33,532 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:33,532 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:33,532 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:33,576 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:33,749 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 11:16:33,749 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:33,750 INFO L146 ILogger]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-05-23 11:16:33,750 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:16:33,751 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:16:33,751 INFO L146 ILogger]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:16:33,751 INFO L146 ILogger]: Start difference. First operand 127 states and 141 transitions. Second operand 6 states. [2019-05-23 11:16:34,168 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:34,168 INFO L146 ILogger]: Finished difference Result 250 states and 279 transitions. [2019-05-23 11:16:34,169 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:16:34,169 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 37 [2019-05-23 11:16:34,169 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:34,171 INFO L146 ILogger]: With dead ends: 250 [2019-05-23 11:16:34,171 INFO L146 ILogger]: Without dead ends: 185 [2019-05-23 11:16:34,173 INFO L146 ILogger]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:16:34,173 INFO L146 ILogger]: Start minimizeSevpa. Operand 185 states. [2019-05-23 11:16:34,185 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 185 to 172. [2019-05-23 11:16:34,185 INFO L146 ILogger]: Start removeUnreachable. Operand 172 states. [2019-05-23 11:16:34,186 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 172 states to 172 states and 193 transitions. [2019-05-23 11:16:34,187 INFO L146 ILogger]: Start accepts. Automaton has 172 states and 193 transitions. Word has length 37 [2019-05-23 11:16:34,187 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:34,187 INFO L146 ILogger]: Abstraction has 172 states and 193 transitions. [2019-05-23 11:16:34,187 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:16:34,187 INFO L146 ILogger]: Start isEmpty. Operand 172 states and 193 transitions. [2019-05-23 11:16:34,189 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:16:34,189 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:34,189 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] [2019-05-23 11:16:34,190 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:34,190 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:34,190 INFO L146 ILogger]: Analyzing trace with hash -1981034475, now seen corresponding path program 1 times [2019-05-23 11:16:34,190 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:34,190 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:34,192 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:34,192 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:34,192 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:34,239 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:34,570 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 11:16:34,570 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:34,570 INFO L146 ILogger]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-05-23 11:16:34,571 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:16:34,571 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:16:34,572 INFO L146 ILogger]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:16:34,572 INFO L146 ILogger]: Start difference. First operand 172 states and 193 transitions. Second operand 6 states. [2019-05-23 11:16:35,216 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:35,216 INFO L146 ILogger]: Finished difference Result 200 states and 221 transitions. [2019-05-23 11:16:35,218 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:16:35,218 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 38 [2019-05-23 11:16:35,219 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:35,221 INFO L146 ILogger]: With dead ends: 200 [2019-05-23 11:16:35,221 INFO L146 ILogger]: Without dead ends: 168 [2019-05-23 11:16:35,224 INFO L146 ILogger]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:16:35,225 INFO L146 ILogger]: Start minimizeSevpa. Operand 168 states. [2019-05-23 11:16:35,245 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 168 to 157. [2019-05-23 11:16:35,245 INFO L146 ILogger]: Start removeUnreachable. Operand 157 states. [2019-05-23 11:16:35,249 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2019-05-23 11:16:35,250 INFO L146 ILogger]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 38 [2019-05-23 11:16:35,250 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:35,250 INFO L146 ILogger]: Abstraction has 157 states and 173 transitions. [2019-05-23 11:16:35,250 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:16:35,250 INFO L146 ILogger]: Start isEmpty. Operand 157 states and 173 transitions. [2019-05-23 11:16:35,254 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:16:35,254 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:35,255 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] [2019-05-23 11:16:35,255 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:35,255 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:35,256 INFO L146 ILogger]: Analyzing trace with hash -705989298, now seen corresponding path program 1 times [2019-05-23 11:16:35,259 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:35,259 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:35,261 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:35,263 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:35,264 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:35,300 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:35,458 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 11:16:35,458 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:35,459 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:16:35,460 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:16:35,460 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:16:35,460 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:16:35,460 INFO L146 ILogger]: Start difference. First operand 157 states and 173 transitions. Second operand 4 states. [2019-05-23 11:16:35,558 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:35,558 INFO L146 ILogger]: Finished difference Result 185 states and 203 transitions. [2019-05-23 11:16:35,559 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:16:35,559 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 42 [2019-05-23 11:16:35,560 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:35,560 INFO L146 ILogger]: With dead ends: 185 [2019-05-23 11:16:35,560 INFO L146 ILogger]: Without dead ends: 128 [2019-05-23 11:16:35,561 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:16:35,562 INFO L146 ILogger]: Start minimizeSevpa. Operand 128 states. [2019-05-23 11:16:35,567 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-05-23 11:16:35,567 INFO L146 ILogger]: Start removeUnreachable. Operand 128 states. [2019-05-23 11:16:35,568 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2019-05-23 11:16:35,568 INFO L146 ILogger]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 42 [2019-05-23 11:16:35,568 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:35,569 INFO L146 ILogger]: Abstraction has 128 states and 141 transitions. [2019-05-23 11:16:35,569 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:16:35,569 INFO L146 ILogger]: Start isEmpty. Operand 128 states and 141 transitions. [2019-05-23 11:16:35,570 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 45 [2019-05-23 11:16:35,570 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:35,571 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:16:35,571 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:35,571 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:35,571 INFO L146 ILogger]: Analyzing trace with hash 1559649503, now seen corresponding path program 1 times [2019-05-23 11:16:35,572 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:35,572 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:35,573 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:35,573 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:35,573 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:35,647 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:36,470 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 11:16:36,470 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:36,471 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 11:16:36,489 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:36,526 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:36,528 INFO L146 ILogger]: Trace formula consists of 102 conjuncts, 17 conjunts are in the unsatisfiable core [2019-05-23 11:16:36,534 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:36,797 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 11:16:36,826 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:16:36,826 INFO L146 ILogger]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2019-05-23 11:16:36,827 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:16:36,827 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:16:36,832 INFO L146 ILogger]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:16:36,832 INFO L146 ILogger]: Start difference. First operand 128 states and 141 transitions. Second operand 15 states. [2019-05-23 11:16:37,675 WARN L146 ILogger]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2019-05-23 11:16:39,540 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:39,540 INFO L146 ILogger]: Finished difference Result 449 states and 500 transitions. [2019-05-23 11:16:39,541 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-05-23 11:16:39,541 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 44 [2019-05-23 11:16:39,541 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:39,544 INFO L146 ILogger]: With dead ends: 449 [2019-05-23 11:16:39,544 INFO L146 ILogger]: Without dead ends: 416 [2019-05-23 11:16:39,546 INFO L146 ILogger]: 0 DeclaredPredicates, 83 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=413, Invalid=1309, Unknown=0, NotChecked=0, Total=1722 [2019-05-23 11:16:39,547 INFO L146 ILogger]: Start minimizeSevpa. Operand 416 states. [2019-05-23 11:16:39,566 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 416 to 143. [2019-05-23 11:16:39,566 INFO L146 ILogger]: Start removeUnreachable. Operand 143 states. [2019-05-23 11:16:39,567 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 143 states to 143 states and 158 transitions. [2019-05-23 11:16:39,567 INFO L146 ILogger]: Start accepts. Automaton has 143 states and 158 transitions. Word has length 44 [2019-05-23 11:16:39,567 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:39,567 INFO L146 ILogger]: Abstraction has 143 states and 158 transitions. [2019-05-23 11:16:39,568 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:16:39,568 INFO L146 ILogger]: Start isEmpty. Operand 143 states and 158 transitions. [2019-05-23 11:16:39,570 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 50 [2019-05-23 11:16:39,570 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:39,570 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] [2019-05-23 11:16:39,570 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:39,571 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:39,571 INFO L146 ILogger]: Analyzing trace with hash -1308479839, now seen corresponding path program 1 times [2019-05-23 11:16:39,571 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:39,571 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:39,572 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:39,573 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:39,573 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:39,584 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:39,650 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 11:16:39,651 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:39,651 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:16:39,651 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:16:39,652 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:16:39,652 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:16:39,652 INFO L146 ILogger]: Start difference. First operand 143 states and 158 transitions. Second operand 3 states. [2019-05-23 11:16:39,682 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:39,683 INFO L146 ILogger]: Finished difference Result 228 states and 253 transitions. [2019-05-23 11:16:39,686 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:16:39,686 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 49 [2019-05-23 11:16:39,686 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:39,687 INFO L146 ILogger]: With dead ends: 228 [2019-05-23 11:16:39,688 INFO L146 ILogger]: Without dead ends: 196 [2019-05-23 11:16:39,688 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 11:16:39,691 INFO L146 ILogger]: Start minimizeSevpa. Operand 196 states. [2019-05-23 11:16:39,697 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 196 to 156. [2019-05-23 11:16:39,697 INFO L146 ILogger]: Start removeUnreachable. Operand 156 states. [2019-05-23 11:16:39,698 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 156 states to 156 states and 173 transitions. [2019-05-23 11:16:39,698 INFO L146 ILogger]: Start accepts. Automaton has 156 states and 173 transitions. Word has length 49 [2019-05-23 11:16:39,698 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:39,698 INFO L146 ILogger]: Abstraction has 156 states and 173 transitions. [2019-05-23 11:16:39,699 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:16:39,699 INFO L146 ILogger]: Start isEmpty. Operand 156 states and 173 transitions. [2019-05-23 11:16:39,700 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 53 [2019-05-23 11:16:39,700 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:39,701 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] [2019-05-23 11:16:39,701 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:39,701 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:39,701 INFO L146 ILogger]: Analyzing trace with hash -972774692, now seen corresponding path program 1 times [2019-05-23 11:16:39,701 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:39,702 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:39,703 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:39,703 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:39,703 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:39,719 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:39,884 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:16:39,884 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:39,884 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 11:16:39,897 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:39,921 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:39,922 INFO L146 ILogger]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:16:39,924 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:39,997 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:16:40,017 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:16:40,017 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2019-05-23 11:16:40,018 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:16:40,018 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:16:40,019 INFO L146 ILogger]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:16:40,019 INFO L146 ILogger]: Start difference. First operand 156 states and 173 transitions. Second operand 8 states. [2019-05-23 11:16:40,221 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:40,222 INFO L146 ILogger]: Finished difference Result 219 states and 239 transitions. [2019-05-23 11:16:40,222 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:16:40,222 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 52 [2019-05-23 11:16:40,223 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:40,225 INFO L146 ILogger]: With dead ends: 219 [2019-05-23 11:16:40,225 INFO L146 ILogger]: Without dead ends: 213 [2019-05-23 11:16:40,226 INFO L146 ILogger]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:16:40,226 INFO L146 ILogger]: Start minimizeSevpa. Operand 213 states. [2019-05-23 11:16:40,232 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 213 to 158. [2019-05-23 11:16:40,232 INFO L146 ILogger]: Start removeUnreachable. Operand 158 states. [2019-05-23 11:16:40,233 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 158 states to 158 states and 176 transitions. [2019-05-23 11:16:40,233 INFO L146 ILogger]: Start accepts. Automaton has 158 states and 176 transitions. Word has length 52 [2019-05-23 11:16:40,233 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:40,234 INFO L146 ILogger]: Abstraction has 158 states and 176 transitions. [2019-05-23 11:16:40,234 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:16:40,234 INFO L146 ILogger]: Start isEmpty. Operand 158 states and 176 transitions. [2019-05-23 11:16:40,235 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 56 [2019-05-23 11:16:40,235 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:40,235 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] [2019-05-23 11:16:40,235 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:40,236 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:40,236 INFO L146 ILogger]: Analyzing trace with hash -117512295, now seen corresponding path program 1 times [2019-05-23 11:16:40,236 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:40,236 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:40,237 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:40,237 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:40,238 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:40,252 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:40,412 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:16:40,413 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:40,413 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 11:16:40,424 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:40,450 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:40,451 INFO L146 ILogger]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2019-05-23 11:16:40,455 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:40,567 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:16:40,586 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:16:40,586 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-05-23 11:16:40,587 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:16:40,587 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:16:40,587 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:16:40,587 INFO L146 ILogger]: Start difference. First operand 158 states and 176 transitions. Second operand 11 states. [2019-05-23 11:16:41,460 WARN L146 ILogger]: Spent 152.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-05-23 11:16:41,793 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:41,794 INFO L146 ILogger]: Finished difference Result 651 states and 718 transitions. [2019-05-23 11:16:41,794 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-05-23 11:16:41,794 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 55 [2019-05-23 11:16:41,794 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:41,797 INFO L146 ILogger]: With dead ends: 651 [2019-05-23 11:16:41,797 INFO L146 ILogger]: Without dead ends: 612 [2019-05-23 11:16:41,798 INFO L146 ILogger]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:16:41,799 INFO L146 ILogger]: Start minimizeSevpa. Operand 612 states. [2019-05-23 11:16:41,812 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 612 to 322. [2019-05-23 11:16:41,812 INFO L146 ILogger]: Start removeUnreachable. Operand 322 states. [2019-05-23 11:16:41,813 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 322 states to 322 states and 365 transitions. [2019-05-23 11:16:41,814 INFO L146 ILogger]: Start accepts. Automaton has 322 states and 365 transitions. Word has length 55 [2019-05-23 11:16:41,814 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:41,814 INFO L146 ILogger]: Abstraction has 322 states and 365 transitions. [2019-05-23 11:16:41,814 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:16:41,814 INFO L146 ILogger]: Start isEmpty. Operand 322 states and 365 transitions. [2019-05-23 11:16:41,815 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 56 [2019-05-23 11:16:41,815 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:41,816 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] [2019-05-23 11:16:41,816 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:41,816 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:41,817 INFO L146 ILogger]: Analyzing trace with hash 595187488, now seen corresponding path program 1 times [2019-05-23 11:16:41,817 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:41,817 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:41,818 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:41,818 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:41,818 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:41,833 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:42,135 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:16:42,136 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:42,136 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:16:42,146 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:42,178 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:42,179 INFO L146 ILogger]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:16:42,182 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:42,349 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:16:42,367 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:16:42,368 INFO L146 ILogger]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2019-05-23 11:16:42,368 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:16:42,368 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:16:42,369 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:16:42,369 INFO L146 ILogger]: Start difference. First operand 322 states and 365 transitions. Second operand 13 states. [2019-05-23 11:16:43,634 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:43,635 INFO L146 ILogger]: Finished difference Result 450 states and 502 transitions. [2019-05-23 11:16:43,635 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:16:43,636 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 55 [2019-05-23 11:16:43,636 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:43,637 INFO L146 ILogger]: With dead ends: 450 [2019-05-23 11:16:43,637 INFO L146 ILogger]: Without dead ends: 386 [2019-05-23 11:16:43,638 INFO L146 ILogger]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2019-05-23 11:16:43,639 INFO L146 ILogger]: Start minimizeSevpa. Operand 386 states. [2019-05-23 11:16:43,649 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 386 to 273. [2019-05-23 11:16:43,650 INFO L146 ILogger]: Start removeUnreachable. Operand 273 states. [2019-05-23 11:16:43,651 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 273 states to 273 states and 305 transitions. [2019-05-23 11:16:43,651 INFO L146 ILogger]: Start accepts. Automaton has 273 states and 305 transitions. Word has length 55 [2019-05-23 11:16:43,651 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:43,652 INFO L146 ILogger]: Abstraction has 273 states and 305 transitions. [2019-05-23 11:16:43,652 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:16:43,652 INFO L146 ILogger]: Start isEmpty. Operand 273 states and 305 transitions. [2019-05-23 11:16:43,653 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 59 [2019-05-23 11:16:43,653 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:43,653 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] [2019-05-23 11:16:43,654 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:43,654 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:43,654 INFO L146 ILogger]: Analyzing trace with hash -1186805827, now seen corresponding path program 1 times [2019-05-23 11:16:43,654 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:43,655 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:43,656 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:43,656 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:43,656 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:43,671 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:43,802 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 11:16:43,803 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:43,803 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:16:43,803 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:16:43,803 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:16:43,804 INFO L146 ILogger]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:16:43,804 INFO L146 ILogger]: Start difference. First operand 273 states and 305 transitions. Second operand 5 states. [2019-05-23 11:16:44,010 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:44,010 INFO L146 ILogger]: Finished difference Result 419 states and 465 transitions. [2019-05-23 11:16:44,010 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:16:44,011 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 58 [2019-05-23 11:16:44,011 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:44,015 INFO L146 ILogger]: With dead ends: 419 [2019-05-23 11:16:44,016 INFO L146 ILogger]: Without dead ends: 293 [2019-05-23 11:16:44,016 INFO L146 ILogger]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:16:44,017 INFO L146 ILogger]: Start minimizeSevpa. Operand 293 states. [2019-05-23 11:16:44,029 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 293 to 274. [2019-05-23 11:16:44,030 INFO L146 ILogger]: Start removeUnreachable. Operand 274 states. [2019-05-23 11:16:44,031 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 274 states to 274 states and 303 transitions. [2019-05-23 11:16:44,031 INFO L146 ILogger]: Start accepts. Automaton has 274 states and 303 transitions. Word has length 58 [2019-05-23 11:16:44,031 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:44,031 INFO L146 ILogger]: Abstraction has 274 states and 303 transitions. [2019-05-23 11:16:44,031 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:16:44,032 INFO L146 ILogger]: Start isEmpty. Operand 274 states and 303 transitions. [2019-05-23 11:16:44,032 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 64 [2019-05-23 11:16:44,032 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:44,033 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] [2019-05-23 11:16:44,033 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:44,033 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:44,033 INFO L146 ILogger]: Analyzing trace with hash -1329126149, now seen corresponding path program 1 times [2019-05-23 11:16:44,034 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:44,034 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:44,035 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:44,035 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:44,035 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:44,055 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:44,437 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:16:44,438 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:44,438 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 11:16:44,447 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:44,474 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:44,475 INFO L146 ILogger]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:16:44,479 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:44,550 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:16:44,572 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:16:44,572 INFO L146 ILogger]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 13 [2019-05-23 11:16:44,572 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:16:44,573 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:16:44,573 INFO L146 ILogger]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:16:44,573 INFO L146 ILogger]: Start difference. First operand 274 states and 303 transitions. Second operand 13 states. [2019-05-23 11:16:45,012 WARN L146 ILogger]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-05-23 11:16:45,564 WARN L146 ILogger]: Spent 308.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 15 [2019-05-23 11:16:46,059 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:46,059 INFO L146 ILogger]: Finished difference Result 294 states and 322 transitions. [2019-05-23 11:16:46,060 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:16:46,060 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 63 [2019-05-23 11:16:46,061 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:46,062 INFO L146 ILogger]: With dead ends: 294 [2019-05-23 11:16:46,063 INFO L146 ILogger]: Without dead ends: 238 [2019-05-23 11:16:46,063 INFO L146 ILogger]: 0 DeclaredPredicates, 76 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:16:46,064 INFO L146 ILogger]: Start minimizeSevpa. Operand 238 states. [2019-05-23 11:16:46,075 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 238 to 228. [2019-05-23 11:16:46,076 INFO L146 ILogger]: Start removeUnreachable. Operand 228 states. [2019-05-23 11:16:46,077 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 228 states to 228 states and 252 transitions. [2019-05-23 11:16:46,077 INFO L146 ILogger]: Start accepts. Automaton has 228 states and 252 transitions. Word has length 63 [2019-05-23 11:16:46,078 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:46,078 INFO L146 ILogger]: Abstraction has 228 states and 252 transitions. [2019-05-23 11:16:46,078 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:16:46,078 INFO L146 ILogger]: Start isEmpty. Operand 228 states and 252 transitions. [2019-05-23 11:16:46,080 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 66 [2019-05-23 11:16:46,080 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:46,080 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] [2019-05-23 11:16:46,081 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:46,081 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:46,081 INFO L146 ILogger]: Analyzing trace with hash -249273367, now seen corresponding path program 1 times [2019-05-23 11:16:46,082 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:46,089 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:46,090 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:46,090 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:46,093 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:46,152 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:46,610 WARN L146 ILogger]: Spent 160.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 13 [2019-05-23 11:16:46,640 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:16:46,640 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:16:46,640 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:16:46,641 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:16:46,641 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:16:46,641 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:16:46,641 INFO L146 ILogger]: Start difference. First operand 228 states and 252 transitions. Second operand 4 states. [2019-05-23 11:16:47,065 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:47,065 INFO L146 ILogger]: Finished difference Result 272 states and 301 transitions. [2019-05-23 11:16:47,068 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:16:47,069 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 65 [2019-05-23 11:16:47,069 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:47,070 INFO L146 ILogger]: With dead ends: 272 [2019-05-23 11:16:47,070 INFO L146 ILogger]: Without dead ends: 245 [2019-05-23 11:16:47,071 INFO L146 ILogger]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:16:47,071 INFO L146 ILogger]: Start minimizeSevpa. Operand 245 states. [2019-05-23 11:16:47,080 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 245 to 231. [2019-05-23 11:16:47,080 INFO L146 ILogger]: Start removeUnreachable. Operand 231 states. [2019-05-23 11:16:47,081 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 231 states to 231 states and 256 transitions. [2019-05-23 11:16:47,081 INFO L146 ILogger]: Start accepts. Automaton has 231 states and 256 transitions. Word has length 65 [2019-05-23 11:16:47,082 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:47,082 INFO L146 ILogger]: Abstraction has 231 states and 256 transitions. [2019-05-23 11:16:47,082 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:16:47,082 INFO L146 ILogger]: Start isEmpty. Operand 231 states and 256 transitions. [2019-05-23 11:16:47,083 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:16:47,083 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:47,083 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:16:47,084 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:47,084 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:47,084 INFO L146 ILogger]: Analyzing trace with hash 1942475711, now seen corresponding path program 1 times [2019-05-23 11:16:47,084 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:47,084 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:47,085 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:47,085 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:47,086 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:47,104 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:47,485 WARN L146 ILogger]: Spent 136.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2019-05-23 11:16:47,713 WARN L146 ILogger]: Spent 164.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2019-05-23 11:16:47,938 WARN L146 ILogger]: Spent 146.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2019-05-23 11:16:48,000 INFO L146 ILogger]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:16:48,000 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:48,000 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 11:16:48,011 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:48,034 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:48,035 INFO L146 ILogger]: Trace formula consists of 148 conjuncts, 15 conjunts are in the unsatisfiable core [2019-05-23 11:16:48,038 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:48,324 WARN L146 ILogger]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-05-23 11:16:48,426 INFO L146 ILogger]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:16:48,444 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:16:48,445 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2019-05-23 11:16:48,445 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:16:48,445 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:16:48,445 INFO L146 ILogger]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:16:48,446 INFO L146 ILogger]: Start difference. First operand 231 states and 256 transitions. Second operand 15 states. [2019-05-23 11:16:48,903 WARN L146 ILogger]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-05-23 11:16:49,250 WARN L146 ILogger]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-05-23 11:16:49,598 WARN L146 ILogger]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-05-23 11:16:50,183 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:50,183 INFO L146 ILogger]: Finished difference Result 349 states and 385 transitions. [2019-05-23 11:16:50,183 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:16:50,184 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 75 [2019-05-23 11:16:50,184 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:50,186 INFO L146 ILogger]: With dead ends: 349 [2019-05-23 11:16:50,186 INFO L146 ILogger]: Without dead ends: 291 [2019-05-23 11:16:50,187 INFO L146 ILogger]: 0 DeclaredPredicates, 102 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:16:50,187 INFO L146 ILogger]: Start minimizeSevpa. Operand 291 states. [2019-05-23 11:16:50,196 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 291 to 243. [2019-05-23 11:16:50,196 INFO L146 ILogger]: Start removeUnreachable. Operand 243 states. [2019-05-23 11:16:50,197 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 243 states to 243 states and 269 transitions. [2019-05-23 11:16:50,197 INFO L146 ILogger]: Start accepts. Automaton has 243 states and 269 transitions. Word has length 75 [2019-05-23 11:16:50,197 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:50,197 INFO L146 ILogger]: Abstraction has 243 states and 269 transitions. [2019-05-23 11:16:50,198 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:16:50,198 INFO L146 ILogger]: Start isEmpty. Operand 243 states and 269 transitions. [2019-05-23 11:16:50,198 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 77 [2019-05-23 11:16:50,199 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:50,199 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, 1] [2019-05-23 11:16:50,199 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:50,199 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:50,200 INFO L146 ILogger]: Analyzing trace with hash -450024533, now seen corresponding path program 1 times [2019-05-23 11:16:50,200 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:50,200 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:50,201 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:50,201 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:50,201 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:50,223 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:50,559 WARN L146 ILogger]: Spent 178.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2019-05-23 11:16:51,017 INFO L146 ILogger]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:16:51,017 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:51,017 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 11:16:51,028 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:51,052 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:51,053 INFO L146 ILogger]: Trace formula consists of 155 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:16:51,056 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:51,262 INFO L146 ILogger]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:16:51,281 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:16:51,281 INFO L146 ILogger]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2019-05-23 11:16:51,281 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:16:51,281 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:16:51,282 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:16:51,282 INFO L146 ILogger]: Start difference. First operand 243 states and 269 transitions. Second operand 17 states. [2019-05-23 11:16:52,084 WARN L146 ILogger]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-05-23 11:16:52,975 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:52,976 INFO L146 ILogger]: Finished difference Result 405 states and 444 transitions. [2019-05-23 11:16:52,976 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-05-23 11:16:52,976 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 76 [2019-05-23 11:16:52,976 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:52,978 INFO L146 ILogger]: With dead ends: 405 [2019-05-23 11:16:52,978 INFO L146 ILogger]: Without dead ends: 376 [2019-05-23 11:16:52,979 INFO L146 ILogger]: 0 DeclaredPredicates, 102 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:16:52,979 INFO L146 ILogger]: Start minimizeSevpa. Operand 376 states. [2019-05-23 11:16:52,990 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 376 to 263. [2019-05-23 11:16:52,990 INFO L146 ILogger]: Start removeUnreachable. Operand 263 states. [2019-05-23 11:16:52,991 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 263 states to 263 states and 290 transitions. [2019-05-23 11:16:52,991 INFO L146 ILogger]: Start accepts. Automaton has 263 states and 290 transitions. Word has length 76 [2019-05-23 11:16:52,991 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:52,991 INFO L146 ILogger]: Abstraction has 263 states and 290 transitions. [2019-05-23 11:16:52,991 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:16:52,991 INFO L146 ILogger]: Start isEmpty. Operand 263 states and 290 transitions. [2019-05-23 11:16:52,992 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 82 [2019-05-23 11:16:52,993 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:52,993 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:16:52,993 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:52,993 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:52,993 INFO L146 ILogger]: Analyzing trace with hash -1708238509, now seen corresponding path program 1 times [2019-05-23 11:16:52,994 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:52,994 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:52,995 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:52,995 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:52,995 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:53,031 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:53,360 WARN L146 ILogger]: Spent 155.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2019-05-23 11:16:54,090 INFO L146 ILogger]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:16:54,091 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:54,091 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 11:16:54,101 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:54,131 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:54,132 INFO L146 ILogger]: Trace formula consists of 161 conjuncts, 19 conjunts are in the unsatisfiable core [2019-05-23 11:16:54,134 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:54,682 INFO L146 ILogger]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:16:54,701 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:16:54,701 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27 [2019-05-23 11:16:54,701 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:16:54,702 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:16:54,702 INFO L146 ILogger]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:16:54,702 INFO L146 ILogger]: Start difference. First operand 263 states and 290 transitions. Second operand 27 states. [2019-05-23 11:16:57,849 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:57,849 INFO L146 ILogger]: Finished difference Result 1020 states and 1125 transitions. [2019-05-23 11:16:57,849 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:16:57,849 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 81 [2019-05-23 11:16:57,850 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:57,853 INFO L146 ILogger]: With dead ends: 1020 [2019-05-23 11:16:57,853 INFO L146 ILogger]: Without dead ends: 823 [2019-05-23 11:16:57,855 INFO L146 ILogger]: 0 DeclaredPredicates, 129 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=435, Invalid=2645, Unknown=0, NotChecked=0, Total=3080 [2019-05-23 11:16:57,856 INFO L146 ILogger]: Start minimizeSevpa. Operand 823 states. [2019-05-23 11:16:57,871 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 823 to 357. [2019-05-23 11:16:57,871 INFO L146 ILogger]: Start removeUnreachable. Operand 357 states. [2019-05-23 11:16:57,873 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 357 states to 357 states and 391 transitions. [2019-05-23 11:16:57,873 INFO L146 ILogger]: Start accepts. Automaton has 357 states and 391 transitions. Word has length 81 [2019-05-23 11:16:57,873 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:57,873 INFO L146 ILogger]: Abstraction has 357 states and 391 transitions. [2019-05-23 11:16:57,873 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:16:57,874 INFO L146 ILogger]: Start isEmpty. Operand 357 states and 391 transitions. [2019-05-23 11:16:57,874 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 86 [2019-05-23 11:16:57,874 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:57,875 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:16:57,875 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:57,875 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:57,875 INFO L146 ILogger]: Analyzing trace with hash 1605782666, now seen corresponding path program 1 times [2019-05-23 11:16:57,875 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:57,876 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:57,877 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:57,877 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:57,877 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:57,892 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:58,344 WARN L146 ILogger]: Spent 237.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-05-23 11:16:58,709 INFO L146 ILogger]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:16:58,709 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:58,709 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 11:16:58,718 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:16:58,747 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:58,748 INFO L146 ILogger]: Trace formula consists of 165 conjuncts, 38 conjunts are in the unsatisfiable core [2019-05-23 11:16:58,751 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:58,785 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-05-23 11:16:58,785 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:16:58,787 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:16:58,788 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:16:58,788 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:1 [2019-05-23 11:16:59,167 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:16:59,168 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2019-05-23 11:16:59,169 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:16:59,170 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:16:59,171 INFO L146 ILogger]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:16:59,171 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2019-05-23 11:16:59,252 INFO L146 ILogger]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:16:59,271 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:16:59,271 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 21 [2019-05-23 11:16:59,272 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:16:59,272 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:16:59,272 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:16:59,273 INFO L146 ILogger]: Start difference. First operand 357 states and 391 transitions. Second operand 21 states. [2019-05-23 11:17:01,935 WARN L146 ILogger]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2019-05-23 11:17:02,128 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-05-23 11:17:04,166 WARN L146 ILogger]: Spent 110.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2019-05-23 11:17:05,289 WARN L146 ILogger]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-05-23 11:17:05,702 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:17:05,702 INFO L146 ILogger]: Finished difference Result 1022 states and 1121 transitions. [2019-05-23 11:17:05,702 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2019-05-23 11:17:05,703 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 85 [2019-05-23 11:17:05,703 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:17:05,706 INFO L146 ILogger]: With dead ends: 1022 [2019-05-23 11:17:05,706 INFO L146 ILogger]: Without dead ends: 665 [2019-05-23 11:17:05,709 INFO L146 ILogger]: 0 DeclaredPredicates, 168 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2623 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1690, Invalid=7052, Unknown=0, NotChecked=0, Total=8742 [2019-05-23 11:17:05,710 INFO L146 ILogger]: Start minimizeSevpa. Operand 665 states. [2019-05-23 11:17:05,726 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 665 to 369. [2019-05-23 11:17:05,726 INFO L146 ILogger]: Start removeUnreachable. Operand 369 states. [2019-05-23 11:17:05,727 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 369 states to 369 states and 408 transitions. [2019-05-23 11:17:05,728 INFO L146 ILogger]: Start accepts. Automaton has 369 states and 408 transitions. Word has length 85 [2019-05-23 11:17:05,728 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:17:05,728 INFO L146 ILogger]: Abstraction has 369 states and 408 transitions. [2019-05-23 11:17:05,728 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:17:05,728 INFO L146 ILogger]: Start isEmpty. Operand 369 states and 408 transitions. [2019-05-23 11:17:05,729 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 87 [2019-05-23 11:17:05,729 INFO L146 ILogger]: Found error trace [2019-05-23 11:17:05,730 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] [2019-05-23 11:17:05,730 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:17:05,730 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:17:05,730 INFO L146 ILogger]: Analyzing trace with hash -1781248169, now seen corresponding path program 1 times [2019-05-23 11:17:05,730 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:17:05,731 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:17:05,731 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:05,732 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:05,732 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:05,758 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:07,470 INFO L146 ILogger]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:17:07,470 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:17:07,471 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 11:17:07,479 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:07,512 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:07,514 INFO L146 ILogger]: Trace formula consists of 170 conjuncts, 65 conjunts are in the unsatisfiable core [2019-05-23 11:17:07,516 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:17:07,635 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-05-23 11:17:07,635 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:17:07,640 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:17:07,640 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:17:07,641 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2019-05-23 11:17:08,263 WARN L146 ILogger]: Array PQE input equivalent to false [2019-05-23 11:17:08,264 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:17:08,345 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:17:08,346 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 142 [2019-05-23 11:17:08,358 INFO L146 ILogger]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-05-23 11:17:08,450 INFO L146 ILogger]: treesize reduction 97, result has 28.7 percent of original size [2019-05-23 11:17:08,451 INFO L146 ILogger]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-05-23 11:17:08,452 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 5 variables, input treesize:135, output treesize:33 [2019-05-23 11:17:09,409 WARN L146 ILogger]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-05-23 11:17:09,434 INFO L146 ILogger]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:17:09,452 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:17:09,453 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 42 [2019-05-23 11:17:09,453 INFO L146 ILogger]: Interpolant automaton has 42 states [2019-05-23 11:17:09,453 INFO L146 ILogger]: Constructing interpolant automaton starting with 42 interpolants. [2019-05-23 11:17:09,454 INFO L146 ILogger]: CoverageRelationStatistics Valid=123, Invalid=1599, Unknown=0, NotChecked=0, Total=1722 [2019-05-23 11:17:09,454 INFO L146 ILogger]: Start difference. First operand 369 states and 408 transitions. Second operand 42 states. [2019-05-23 11:17:11,260 WARN L146 ILogger]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-05-23 11:17:11,916 WARN L146 ILogger]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-05-23 11:17:12,116 WARN L146 ILogger]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-05-23 11:17:12,323 WARN L146 ILogger]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-05-23 11:17:12,513 WARN L146 ILogger]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-05-23 11:17:12,842 WARN L146 ILogger]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2019-05-23 11:17:13,011 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-05-23 11:17:13,220 WARN L146 ILogger]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-05-23 11:17:13,529 WARN L146 ILogger]: Spent 137.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-05-23 11:17:13,881 WARN L146 ILogger]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-05-23 11:17:14,134 WARN L146 ILogger]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-05-23 11:17:14,479 WARN L146 ILogger]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-05-23 11:17:14,796 WARN L146 ILogger]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-05-23 11:17:15,706 WARN L146 ILogger]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-05-23 11:17:15,931 WARN L146 ILogger]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-05-23 11:17:16,313 WARN L146 ILogger]: Spent 182.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-05-23 11:17:18,528 WARN L146 ILogger]: Spent 2.09 s on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2019-05-23 11:17:19,090 WARN L146 ILogger]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-05-23 11:17:19,334 WARN L146 ILogger]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-05-23 11:17:19,676 WARN L146 ILogger]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-05-23 11:17:20,736 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:17:20,736 INFO L146 ILogger]: Finished difference Result 823 states and 898 transitions. [2019-05-23 11:17:20,745 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-05-23 11:17:20,746 INFO L146 ILogger]: Start accepts. Automaton has 42 states. Word has length 86 [2019-05-23 11:17:20,746 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:17:20,748 INFO L146 ILogger]: With dead ends: 823 [2019-05-23 11:17:20,749 INFO L146 ILogger]: Without dead ends: 757 [2019-05-23 11:17:20,751 INFO L146 ILogger]: 0 DeclaredPredicates, 162 GetRequests, 69 SyntacticMatches, 6 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1656 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=1207, Invalid=6625, Unknown=0, NotChecked=0, Total=7832 [2019-05-23 11:17:20,752 INFO L146 ILogger]: Start minimizeSevpa. Operand 757 states. [2019-05-23 11:17:20,774 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 757 to 402. [2019-05-23 11:17:20,774 INFO L146 ILogger]: Start removeUnreachable. Operand 402 states. [2019-05-23 11:17:20,775 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 402 states to 402 states and 441 transitions. [2019-05-23 11:17:20,775 INFO L146 ILogger]: Start accepts. Automaton has 402 states and 441 transitions. Word has length 86 [2019-05-23 11:17:20,775 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:17:20,776 INFO L146 ILogger]: Abstraction has 402 states and 441 transitions. [2019-05-23 11:17:20,776 INFO L146 ILogger]: Interpolant automaton has 42 states. [2019-05-23 11:17:20,776 INFO L146 ILogger]: Start isEmpty. Operand 402 states and 441 transitions. [2019-05-23 11:17:20,777 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 90 [2019-05-23 11:17:20,777 INFO L146 ILogger]: Found error trace [2019-05-23 11:17:20,777 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] [2019-05-23 11:17:20,778 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:17:20,778 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:17:20,778 INFO L146 ILogger]: Analyzing trace with hash 3060975, now seen corresponding path program 1 times [2019-05-23 11:17:20,778 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:17:20,778 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:17:20,779 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:20,779 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:20,780 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:20,792 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:21,017 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 11:17:21,017 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:17:21,018 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 11:17:21,026 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:21,055 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:21,056 INFO L146 ILogger]: Trace formula consists of 174 conjuncts, 25 conjunts are in the unsatisfiable core [2019-05-23 11:17:21,059 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:17:21,564 INFO L146 ILogger]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:17:21,592 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:17:21,593 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 15] total 19 [2019-05-23 11:17:21,593 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:17:21,593 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:17:21,594 INFO L146 ILogger]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:17:21,594 INFO L146 ILogger]: Start difference. First operand 402 states and 441 transitions. Second operand 19 states. [2019-05-23 11:17:22,916 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:17:22,917 INFO L146 ILogger]: Finished difference Result 1132 states and 1243 transitions. [2019-05-23 11:17:22,917 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-05-23 11:17:22,917 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 89 [2019-05-23 11:17:22,918 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:17:22,921 INFO L146 ILogger]: With dead ends: 1132 [2019-05-23 11:17:22,921 INFO L146 ILogger]: Without dead ends: 1086 [2019-05-23 11:17:22,922 INFO L146 ILogger]: 0 DeclaredPredicates, 127 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=336, Invalid=2016, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:17:22,923 INFO L146 ILogger]: Start minimizeSevpa. Operand 1086 states. [2019-05-23 11:17:22,955 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 1086 to 549. [2019-05-23 11:17:22,956 INFO L146 ILogger]: Start removeUnreachable. Operand 549 states. [2019-05-23 11:17:22,957 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 549 states to 549 states and 605 transitions. [2019-05-23 11:17:22,957 INFO L146 ILogger]: Start accepts. Automaton has 549 states and 605 transitions. Word has length 89 [2019-05-23 11:17:22,957 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:17:22,958 INFO L146 ILogger]: Abstraction has 549 states and 605 transitions. [2019-05-23 11:17:22,958 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:17:22,958 INFO L146 ILogger]: Start isEmpty. Operand 549 states and 605 transitions. [2019-05-23 11:17:22,959 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 95 [2019-05-23 11:17:22,959 INFO L146 ILogger]: Found error trace [2019-05-23 11:17:22,959 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:22,960 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:17:22,960 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:17:22,960 INFO L146 ILogger]: Analyzing trace with hash -770149207, now seen corresponding path program 1 times [2019-05-23 11:17:22,960 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:17:22,960 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:17:22,961 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:22,961 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:22,961 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:22,979 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:23,436 WARN L146 ILogger]: Spent 230.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-05-23 11:17:24,088 INFO L146 ILogger]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-05-23 11:17:24,088 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:17:24,088 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 11:17:24,108 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:24,183 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:24,185 INFO L146 ILogger]: Trace formula consists of 178 conjuncts, 27 conjunts are in the unsatisfiable core [2019-05-23 11:17:24,188 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:17:25,166 INFO L146 ILogger]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:17:25,184 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:17:25,184 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15] total 21 [2019-05-23 11:17:25,185 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:17:25,185 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:17:25,185 INFO L146 ILogger]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:17:25,186 INFO L146 ILogger]: Start difference. First operand 549 states and 605 transitions. Second operand 21 states. [2019-05-23 11:17:27,822 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:17:27,822 INFO L146 ILogger]: Finished difference Result 1177 states and 1281 transitions. [2019-05-23 11:17:27,823 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-05-23 11:17:27,823 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 94 [2019-05-23 11:17:27,823 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:17:27,825 INFO L146 ILogger]: With dead ends: 1177 [2019-05-23 11:17:27,825 INFO L146 ILogger]: Without dead ends: 708 [2019-05-23 11:17:27,827 INFO L146 ILogger]: 0 DeclaredPredicates, 149 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=682, Invalid=3608, Unknown=0, NotChecked=0, Total=4290 [2019-05-23 11:17:27,828 INFO L146 ILogger]: Start minimizeSevpa. Operand 708 states. [2019-05-23 11:17:27,857 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 708 to 532. [2019-05-23 11:17:27,857 INFO L146 ILogger]: Start removeUnreachable. Operand 532 states. [2019-05-23 11:17:27,858 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 532 states to 532 states and 583 transitions. [2019-05-23 11:17:27,858 INFO L146 ILogger]: Start accepts. Automaton has 532 states and 583 transitions. Word has length 94 [2019-05-23 11:17:27,858 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:17:27,859 INFO L146 ILogger]: Abstraction has 532 states and 583 transitions. [2019-05-23 11:17:27,859 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:17:27,859 INFO L146 ILogger]: Start isEmpty. Operand 532 states and 583 transitions. [2019-05-23 11:17:27,860 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 103 [2019-05-23 11:17:27,860 INFO L146 ILogger]: Found error trace [2019-05-23 11:17:27,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:27,861 INFO L146 ILogger]: === Iteration 21 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:17:27,861 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:17:27,861 INFO L146 ILogger]: Analyzing trace with hash -971581155, now seen corresponding path program 1 times [2019-05-23 11:17:27,861 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:17:27,861 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:17:27,862 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:27,862 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:27,862 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:17:27,881 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:28,378 WARN L146 ILogger]: Spent 160.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 5 [2019-05-23 11:17:28,597 WARN L146 ILogger]: Spent 118.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 5 [2019-05-23 11:17:28,733 INFO L146 ILogger]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-05-23 11:17:28,734 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:17:28,734 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:17:28,744 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:17:28,785 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:17:28,786 INFO L146 ILogger]: Trace formula consists of 195 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 11:17:28,788 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:17:29,261 INFO L146 ILogger]: Checked inductivity of 28 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:17:29,279 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:17:29,279 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 20 [2019-05-23 11:17:29,280 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:17:29,280 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:17:29,280 INFO L146 ILogger]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:17:29,280 INFO L146 ILogger]: Start difference. First operand 532 states and 583 transitions. Second operand 20 states.