java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-examples/standard_init6_false-unreach-call_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:15:28,739 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:15:28,741 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:15:28,753 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:15:28,753 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:15:28,754 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:15:28,756 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:15:28,758 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:15:28,759 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:15:28,760 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:15:28,761 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:15:28,762 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:15:28,763 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:15:28,764 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:15:28,765 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:15:28,765 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:15:28,766 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:15:28,768 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:15:28,770 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:15:28,772 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:15:28,773 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:15:28,774 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:15:28,777 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:15:28,777 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:15:28,777 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:15:28,778 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:15:28,779 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:15:28,780 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:15:28,780 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:15:28,781 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:15:28,782 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:15:28,783 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:15:28,784 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:15:28,784 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:15:28,785 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:15:28,785 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:15:28,785 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:15:28,786 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:15:28,787 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:15:28,787 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:15:28,805 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:15:28,806 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:15:28,807 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:15:28,807 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:15:28,807 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:15:28,808 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:15:28,808 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:15:28,808 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:15:28,808 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:15:28,808 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:15:28,809 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:15:28,809 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:15:28,809 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:15:28,809 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:15:28,809 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:15:28,810 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:15:28,810 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:15:28,810 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:15:28,810 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:15:28,810 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:15:28,811 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:15:28,811 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:15:28,811 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:15:28,811 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:15:28,812 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:15:28,812 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:15:28,812 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:15:28,812 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:15:28,812 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 11:15:28,856 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:15:28,873 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:15:28,879 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:15:28,881 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:15:28,882 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:15:28,883 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/standard_init6_false-unreach-call_ground.i [2019-05-23 11:15:28,952 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2d87cdf/2478bee7ab40476891f6f8e5ad137aba/FLAG817e949ae [2019-05-23 11:15:29,399 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:15:29,400 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/standard_init6_false-unreach-call_ground.i [2019-05-23 11:15:29,406 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2d87cdf/2478bee7ab40476891f6f8e5ad137aba/FLAG817e949ae [2019-05-23 11:15:29,779 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2d87cdf/2478bee7ab40476891f6f8e5ad137aba [2019-05-23 11:15:29,788 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:15:29,790 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:15:29,791 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:15:29,791 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:15:29,795 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:15:29,796 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:15:29" (1/1) ... [2019-05-23 11:15:29,798 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea10059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:29, skipping insertion in model container [2019-05-23 11:15:29,799 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:15:29" (1/1) ... [2019-05-23 11:15:29,804 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:15:29,821 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:15:30,038 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:15:30,043 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:15:30,071 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:15:30,097 INFO L146 ILogger]: Completed translation [2019-05-23 11:15:30,098 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30 WrapperNode [2019-05-23 11:15:30,098 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:15:30,100 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:15:30,100 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:15:30,100 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:15:30,111 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,119 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,139 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:15:30,140 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:15:30,140 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:15:30,140 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:15:30,148 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,148 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,150 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,151 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,157 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,253 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,260 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (1/1) ... [2019-05-23 11:15:30,262 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:15:30,263 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:15:30,263 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:15:30,263 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:15:30,264 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (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 11:15:30,322 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:15:30,322 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:15:30,323 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:15:30,323 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:15:30,323 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:15:30,323 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:15:30,798 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:15:30,799 INFO L146 ILogger]: Removed 13 assume(true) statements. [2019-05-23 11:15:30,800 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:15:30 BoogieIcfgContainer [2019-05-23 11:15:30,800 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:15:30,801 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:15:30,801 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:15:30,805 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:15:30,805 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:15:29" (1/3) ... [2019-05-23 11:15:30,806 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca2b252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:15:30, skipping insertion in model container [2019-05-23 11:15:30,806 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:15:30" (2/3) ... [2019-05-23 11:15:30,806 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca2b252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:15:30, skipping insertion in model container [2019-05-23 11:15:30,807 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:15:30" (3/3) ... [2019-05-23 11:15:30,808 INFO L146 ILogger]: Analyzing ICFG standard_init6_false-unreach-call_ground.i [2019-05-23 11:15:30,818 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:15:30,827 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:15:30,843 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:15:30,874 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:15:30,875 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:15:30,875 INFO L146 ILogger]: Hoare is true [2019-05-23 11:15:30,875 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:15:30,875 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:15:30,876 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:15:30,876 INFO L146 ILogger]: Difference is false [2019-05-23 11:15:30,876 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:15:30,876 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:15:30,891 INFO L146 ILogger]: Start isEmpty. Operand 49 states. [2019-05-23 11:15:30,898 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 27 [2019-05-23 11:15:30,898 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:30,900 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:30,901 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:30,906 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:30,906 INFO L146 ILogger]: Analyzing trace with hash -46102616, now seen corresponding path program 1 times [2019-05-23 11:15:30,908 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:30,908 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:30,954 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:30,954 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:30,955 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:30,997 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:31,033 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 11:15:31,036 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:15:31,036 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:15:31,039 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:15:31,052 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:15:31,053 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:15:31,055 INFO L146 ILogger]: Start difference. First operand 49 states. Second operand 2 states. [2019-05-23 11:15:31,072 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:31,073 INFO L146 ILogger]: Finished difference Result 89 states and 115 transitions. [2019-05-23 11:15:31,073 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:15:31,074 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 26 [2019-05-23 11:15:31,075 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:31,085 INFO L146 ILogger]: With dead ends: 89 [2019-05-23 11:15:31,085 INFO L146 ILogger]: Without dead ends: 43 [2019-05-23 11:15:31,089 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 11:15:31,106 INFO L146 ILogger]: Start minimizeSevpa. Operand 43 states. [2019-05-23 11:15:31,122 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-05-23 11:15:31,123 INFO L146 ILogger]: Start removeUnreachable. Operand 43 states. [2019-05-23 11:15:31,125 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-05-23 11:15:31,126 INFO L146 ILogger]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 26 [2019-05-23 11:15:31,126 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:31,126 INFO L146 ILogger]: Abstraction has 43 states and 49 transitions. [2019-05-23 11:15:31,127 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:15:31,128 INFO L146 ILogger]: Start isEmpty. Operand 43 states and 49 transitions. [2019-05-23 11:15:31,129 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 27 [2019-05-23 11:15:31,129 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:31,129 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:31,129 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:31,131 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:31,131 INFO L146 ILogger]: Analyzing trace with hash 1600931776, now seen corresponding path program 1 times [2019-05-23 11:15:31,132 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:31,132 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:31,133 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:31,134 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:31,134 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:31,147 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:31,201 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 11:15:31,202 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:15:31,202 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:15:31,204 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:15:31,204 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:15:31,204 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:15:31,205 INFO L146 ILogger]: Start difference. First operand 43 states and 49 transitions. Second operand 3 states. [2019-05-23 11:15:31,475 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:31,475 INFO L146 ILogger]: Finished difference Result 95 states and 112 transitions. [2019-05-23 11:15:31,476 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:15:31,476 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 26 [2019-05-23 11:15:31,476 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:31,477 INFO L146 ILogger]: With dead ends: 95 [2019-05-23 11:15:31,478 INFO L146 ILogger]: Without dead ends: 61 [2019-05-23 11:15:31,479 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 11:15:31,479 INFO L146 ILogger]: Start minimizeSevpa. Operand 61 states. [2019-05-23 11:15:31,486 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 61 to 49. [2019-05-23 11:15:31,486 INFO L146 ILogger]: Start removeUnreachable. Operand 49 states. [2019-05-23 11:15:31,487 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2019-05-23 11:15:31,488 INFO L146 ILogger]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2019-05-23 11:15:31,488 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:31,488 INFO L146 ILogger]: Abstraction has 49 states and 55 transitions. [2019-05-23 11:15:31,488 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:15:31,489 INFO L146 ILogger]: Start isEmpty. Operand 49 states and 55 transitions. [2019-05-23 11:15:31,490 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 45 [2019-05-23 11:15:31,490 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:31,490 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 11:15:31,491 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:31,491 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:31,491 INFO L146 ILogger]: Analyzing trace with hash 524065693, now seen corresponding path program 1 times [2019-05-23 11:15:31,491 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:31,492 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:31,493 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:31,493 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:31,493 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:31,530 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:31,584 INFO L146 ILogger]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-05-23 11:15:31,585 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:31,585 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 11:15:31,605 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:31,649 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:31,651 INFO L146 ILogger]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:15:31,657 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:31,784 INFO L146 ILogger]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-05-23 11:15:31,818 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:31,818 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-05-23 11:15:31,819 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:15:31,819 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:15:31,820 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:15:31,820 INFO L146 ILogger]: Start difference. First operand 49 states and 55 transitions. Second operand 5 states. [2019-05-23 11:15:32,515 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:32,515 INFO L146 ILogger]: Finished difference Result 118 states and 135 transitions. [2019-05-23 11:15:32,516 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:15:32,516 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 44 [2019-05-23 11:15:32,516 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:32,517 INFO L146 ILogger]: With dead ends: 118 [2019-05-23 11:15:32,518 INFO L146 ILogger]: Without dead ends: 79 [2019-05-23 11:15:32,518 INFO L146 ILogger]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:15:32,519 INFO L146 ILogger]: Start minimizeSevpa. Operand 79 states. [2019-05-23 11:15:32,526 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 79 to 67. [2019-05-23 11:15:32,526 INFO L146 ILogger]: Start removeUnreachable. Operand 67 states. [2019-05-23 11:15:32,527 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2019-05-23 11:15:32,528 INFO L146 ILogger]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 44 [2019-05-23 11:15:32,528 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:32,528 INFO L146 ILogger]: Abstraction has 67 states and 73 transitions. [2019-05-23 11:15:32,528 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:15:32,529 INFO L146 ILogger]: Start isEmpty. Operand 67 states and 73 transitions. [2019-05-23 11:15:32,530 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:15:32,531 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:32,531 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:32,531 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:32,532 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:32,532 INFO L146 ILogger]: Analyzing trace with hash 2114137120, now seen corresponding path program 2 times [2019-05-23 11:15:32,532 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:32,532 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:32,533 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:32,534 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:32,534 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:32,599 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:32,671 INFO L146 ILogger]: Checked inductivity of 30 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-05-23 11:15:32,671 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:32,671 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:15:32,691 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:15:32,753 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:15:32,753 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:32,754 INFO L146 ILogger]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:15:32,756 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:32,786 INFO L146 ILogger]: Checked inductivity of 30 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-05-23 11:15:32,807 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:32,807 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-05-23 11:15:32,807 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:15:32,808 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:15:32,808 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:15:32,808 INFO L146 ILogger]: Start difference. First operand 67 states and 73 transitions. Second operand 6 states. [2019-05-23 11:15:33,346 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:33,347 INFO L146 ILogger]: Finished difference Result 151 states and 168 transitions. [2019-05-23 11:15:33,347 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:15:33,347 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 62 [2019-05-23 11:15:33,348 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:33,349 INFO L146 ILogger]: With dead ends: 151 [2019-05-23 11:15:33,350 INFO L146 ILogger]: Without dead ends: 97 [2019-05-23 11:15:33,352 INFO L146 ILogger]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:15:33,352 INFO L146 ILogger]: Start minimizeSevpa. Operand 97 states. [2019-05-23 11:15:33,360 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 97 to 85. [2019-05-23 11:15:33,360 INFO L146 ILogger]: Start removeUnreachable. Operand 85 states. [2019-05-23 11:15:33,363 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2019-05-23 11:15:33,363 INFO L146 ILogger]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 62 [2019-05-23 11:15:33,363 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:33,364 INFO L146 ILogger]: Abstraction has 85 states and 91 transitions. [2019-05-23 11:15:33,364 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:15:33,364 INFO L146 ILogger]: Start isEmpty. Operand 85 states and 91 transitions. [2019-05-23 11:15:33,366 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 81 [2019-05-23 11:15:33,366 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:33,366 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:33,367 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:33,367 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:33,367 INFO L146 ILogger]: Analyzing trace with hash 1507707581, now seen corresponding path program 3 times [2019-05-23 11:15:33,367 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:33,367 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:33,368 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:33,369 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:33,369 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:33,400 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:33,490 INFO L146 ILogger]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-05-23 11:15:33,490 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:33,490 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 11:15:33,502 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:15:33,615 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:15:33,615 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:33,617 INFO L146 ILogger]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:15:33,620 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:33,671 INFO L146 ILogger]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-05-23 11:15:33,689 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:33,690 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-05-23 11:15:33,690 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:15:33,690 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:15:33,691 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:15:33,691 INFO L146 ILogger]: Start difference. First operand 85 states and 91 transitions. Second operand 7 states. [2019-05-23 11:15:34,010 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:34,010 INFO L146 ILogger]: Finished difference Result 184 states and 201 transitions. [2019-05-23 11:15:34,011 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:15:34,011 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 80 [2019-05-23 11:15:34,011 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:34,012 INFO L146 ILogger]: With dead ends: 184 [2019-05-23 11:15:34,013 INFO L146 ILogger]: Without dead ends: 115 [2019-05-23 11:15:34,013 INFO L146 ILogger]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:15:34,014 INFO L146 ILogger]: Start minimizeSevpa. Operand 115 states. [2019-05-23 11:15:34,021 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 115 to 103. [2019-05-23 11:15:34,022 INFO L146 ILogger]: Start removeUnreachable. Operand 103 states. [2019-05-23 11:15:34,023 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 103 states to 103 states and 109 transitions. [2019-05-23 11:15:34,023 INFO L146 ILogger]: Start accepts. Automaton has 103 states and 109 transitions. Word has length 80 [2019-05-23 11:15:34,023 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:34,023 INFO L146 ILogger]: Abstraction has 103 states and 109 transitions. [2019-05-23 11:15:34,024 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:15:34,024 INFO L146 ILogger]: Start isEmpty. Operand 103 states and 109 transitions. [2019-05-23 11:15:34,025 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 99 [2019-05-23 11:15:34,025 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:34,025 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:34,026 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:34,026 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:34,026 INFO L146 ILogger]: Analyzing trace with hash -930805632, now seen corresponding path program 4 times [2019-05-23 11:15:34,026 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:34,026 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:34,027 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:34,028 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:34,028 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:34,061 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:34,167 INFO L146 ILogger]: Checked inductivity of 132 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-05-23 11:15:34,167 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:34,167 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 11:15:34,178 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:15:34,229 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:15:34,230 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:34,230 INFO L146 ILogger]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:15:34,235 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:34,283 INFO L146 ILogger]: Checked inductivity of 132 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-05-23 11:15:34,303 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:34,304 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-05-23 11:15:34,304 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:15:34,304 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:15:34,305 INFO L146 ILogger]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:15:34,306 INFO L146 ILogger]: Start difference. First operand 103 states and 109 transitions. Second operand 8 states. [2019-05-23 11:15:34,853 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:34,854 INFO L146 ILogger]: Finished difference Result 217 states and 234 transitions. [2019-05-23 11:15:34,854 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:15:34,854 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 98 [2019-05-23 11:15:34,855 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:34,856 INFO L146 ILogger]: With dead ends: 217 [2019-05-23 11:15:34,857 INFO L146 ILogger]: Without dead ends: 133 [2019-05-23 11:15:34,858 INFO L146 ILogger]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:15:34,858 INFO L146 ILogger]: Start minimizeSevpa. Operand 133 states. [2019-05-23 11:15:34,867 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 133 to 121. [2019-05-23 11:15:34,867 INFO L146 ILogger]: Start removeUnreachable. Operand 121 states. [2019-05-23 11:15:34,868 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 121 states to 121 states and 127 transitions. [2019-05-23 11:15:34,869 INFO L146 ILogger]: Start accepts. Automaton has 121 states and 127 transitions. Word has length 98 [2019-05-23 11:15:34,871 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:34,871 INFO L146 ILogger]: Abstraction has 121 states and 127 transitions. [2019-05-23 11:15:34,871 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:15:34,871 INFO L146 ILogger]: Start isEmpty. Operand 121 states and 127 transitions. [2019-05-23 11:15:34,875 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 117 [2019-05-23 11:15:34,875 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:34,875 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:34,876 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:34,876 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:34,876 INFO L146 ILogger]: Analyzing trace with hash -738967075, now seen corresponding path program 5 times [2019-05-23 11:15:34,876 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:34,876 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:34,877 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:34,877 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:34,878 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:34,923 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:35,063 INFO L146 ILogger]: Checked inductivity of 210 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-05-23 11:15:35,063 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:35,063 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 11:15:35,075 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:15:39,770 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:15:39,770 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:39,777 INFO L146 ILogger]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:15:39,781 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:39,829 INFO L146 ILogger]: Checked inductivity of 210 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-05-23 11:15:39,869 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:39,869 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-05-23 11:15:39,869 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:15:39,870 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:15:39,870 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:15:39,870 INFO L146 ILogger]: Start difference. First operand 121 states and 127 transitions. Second operand 9 states. [2019-05-23 11:15:40,206 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:40,206 INFO L146 ILogger]: Finished difference Result 250 states and 267 transitions. [2019-05-23 11:15:40,207 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:15:40,207 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 116 [2019-05-23 11:15:40,207 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:40,208 INFO L146 ILogger]: With dead ends: 250 [2019-05-23 11:15:40,208 INFO L146 ILogger]: Without dead ends: 151 [2019-05-23 11:15:40,209 INFO L146 ILogger]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:15:40,210 INFO L146 ILogger]: Start minimizeSevpa. Operand 151 states. [2019-05-23 11:15:40,219 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 151 to 139. [2019-05-23 11:15:40,219 INFO L146 ILogger]: Start removeUnreachable. Operand 139 states. [2019-05-23 11:15:40,220 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 139 states to 139 states and 145 transitions. [2019-05-23 11:15:40,220 INFO L146 ILogger]: Start accepts. Automaton has 139 states and 145 transitions. Word has length 116 [2019-05-23 11:15:40,221 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:40,221 INFO L146 ILogger]: Abstraction has 139 states and 145 transitions. [2019-05-23 11:15:40,221 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:15:40,221 INFO L146 ILogger]: Start isEmpty. Operand 139 states and 145 transitions. [2019-05-23 11:15:40,223 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 135 [2019-05-23 11:15:40,223 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:40,223 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:40,223 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:40,224 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:40,224 INFO L146 ILogger]: Analyzing trace with hash -1950622496, now seen corresponding path program 6 times [2019-05-23 11:15:40,224 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:40,224 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:40,225 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:40,225 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:40,225 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:40,260 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:40,481 INFO L146 ILogger]: Checked inductivity of 306 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-05-23 11:15:40,481 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:40,481 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 11:15:40,493 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:15:43,182 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:15:43,182 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:43,188 INFO L146 ILogger]: Trace formula consists of 193 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:15:43,193 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:43,269 INFO L146 ILogger]: Checked inductivity of 306 backedges. 32 proven. 51 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-05-23 11:15:43,292 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:43,292 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 12 [2019-05-23 11:15:43,292 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:15:43,293 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:15:43,293 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:15:43,293 INFO L146 ILogger]: Start difference. First operand 139 states and 145 transitions. Second operand 12 states. [2019-05-23 11:15:43,760 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:43,761 INFO L146 ILogger]: Finished difference Result 289 states and 312 transitions. [2019-05-23 11:15:43,761 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:15:43,761 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 134 [2019-05-23 11:15:43,762 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:43,763 INFO L146 ILogger]: With dead ends: 289 [2019-05-23 11:15:43,763 INFO L146 ILogger]: Without dead ends: 175 [2019-05-23 11:15:43,764 INFO L146 ILogger]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:15:43,765 INFO L146 ILogger]: Start minimizeSevpa. Operand 175 states. [2019-05-23 11:15:43,774 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-05-23 11:15:43,775 INFO L146 ILogger]: Start removeUnreachable. Operand 175 states. [2019-05-23 11:15:43,776 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 175 states to 175 states and 181 transitions. [2019-05-23 11:15:43,776 INFO L146 ILogger]: Start accepts. Automaton has 175 states and 181 transitions. Word has length 134 [2019-05-23 11:15:43,776 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:43,776 INFO L146 ILogger]: Abstraction has 175 states and 181 transitions. [2019-05-23 11:15:43,776 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:15:43,777 INFO L146 ILogger]: Start isEmpty. Operand 175 states and 181 transitions. [2019-05-23 11:15:43,780 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 171 [2019-05-23 11:15:43,780 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:43,781 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:43,781 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:43,781 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:43,781 INFO L146 ILogger]: Analyzing trace with hash -1376671424, now seen corresponding path program 7 times [2019-05-23 11:15:43,782 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:43,782 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:43,783 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:43,783 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:43,783 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:43,823 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:44,049 INFO L146 ILogger]: Checked inductivity of 552 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2019-05-23 11:15:44,050 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:44,050 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:15:44,059 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:44,110 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:44,111 INFO L146 ILogger]: Trace formula consists of 241 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:15:44,115 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:44,199 INFO L146 ILogger]: Checked inductivity of 552 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2019-05-23 11:15:44,218 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:44,218 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-05-23 11:15:44,219 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:15:44,219 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:15:44,219 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:15:44,219 INFO L146 ILogger]: Start difference. First operand 175 states and 181 transitions. Second operand 12 states. [2019-05-23 11:15:44,601 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:44,601 INFO L146 ILogger]: Finished difference Result 349 states and 366 transitions. [2019-05-23 11:15:44,601 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:15:44,602 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 170 [2019-05-23 11:15:44,602 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:44,604 INFO L146 ILogger]: With dead ends: 349 [2019-05-23 11:15:44,604 INFO L146 ILogger]: Without dead ends: 205 [2019-05-23 11:15:44,605 INFO L146 ILogger]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:15:44,605 INFO L146 ILogger]: Start minimizeSevpa. Operand 205 states. [2019-05-23 11:15:44,612 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 205 to 193. [2019-05-23 11:15:44,613 INFO L146 ILogger]: Start removeUnreachable. Operand 193 states. [2019-05-23 11:15:44,614 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 193 states to 193 states and 199 transitions. [2019-05-23 11:15:44,614 INFO L146 ILogger]: Start accepts. Automaton has 193 states and 199 transitions. Word has length 170 [2019-05-23 11:15:44,614 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:44,614 INFO L146 ILogger]: Abstraction has 193 states and 199 transitions. [2019-05-23 11:15:44,614 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:15:44,615 INFO L146 ILogger]: Start isEmpty. Operand 193 states and 199 transitions. [2019-05-23 11:15:44,617 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 189 [2019-05-23 11:15:44,617 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:44,617 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:44,618 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:44,618 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:44,618 INFO L146 ILogger]: Analyzing trace with hash 1633224733, now seen corresponding path program 8 times [2019-05-23 11:15:44,618 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:44,618 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:44,619 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:44,619 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:44,619 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:44,660 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:45,591 INFO L146 ILogger]: Checked inductivity of 702 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2019-05-23 11:15:45,592 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:45,592 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 11:15:45,610 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:15:45,668 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:15:45,668 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:45,671 INFO L146 ILogger]: Trace formula consists of 265 conjuncts, 11 conjunts are in the unsatisfiable core [2019-05-23 11:15:45,675 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:45,822 INFO L146 ILogger]: Checked inductivity of 702 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2019-05-23 11:15:45,844 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:45,844 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-05-23 11:15:45,844 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:15:45,845 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:15:45,845 INFO L146 ILogger]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:15:45,845 INFO L146 ILogger]: Start difference. First operand 193 states and 199 transitions. Second operand 13 states. [2019-05-23 11:15:46,319 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:46,320 INFO L146 ILogger]: Finished difference Result 382 states and 399 transitions. [2019-05-23 11:15:46,320 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:15:46,320 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 188 [2019-05-23 11:15:46,321 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:46,323 INFO L146 ILogger]: With dead ends: 382 [2019-05-23 11:15:46,323 INFO L146 ILogger]: Without dead ends: 223 [2019-05-23 11:15:46,324 INFO L146 ILogger]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:15:46,325 INFO L146 ILogger]: Start minimizeSevpa. Operand 223 states. [2019-05-23 11:15:46,331 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 223 to 211. [2019-05-23 11:15:46,332 INFO L146 ILogger]: Start removeUnreachable. Operand 211 states. [2019-05-23 11:15:46,333 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 211 states to 211 states and 217 transitions. [2019-05-23 11:15:46,333 INFO L146 ILogger]: Start accepts. Automaton has 211 states and 217 transitions. Word has length 188 [2019-05-23 11:15:46,333 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:46,333 INFO L146 ILogger]: Abstraction has 211 states and 217 transitions. [2019-05-23 11:15:46,333 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:15:46,334 INFO L146 ILogger]: Start isEmpty. Operand 211 states and 217 transitions. [2019-05-23 11:15:46,336 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 207 [2019-05-23 11:15:46,337 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:46,337 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:46,337 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:46,337 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:46,338 INFO L146 ILogger]: Analyzing trace with hash 1324379552, now seen corresponding path program 9 times [2019-05-23 11:15:46,338 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:46,338 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:46,339 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:46,339 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:46,339 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:46,379 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:46,548 INFO L146 ILogger]: Checked inductivity of 870 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2019-05-23 11:15:46,549 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:46,549 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 11:15:46,558 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:16:07,359 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-05-23 11:16:07,360 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:07,369 INFO L146 ILogger]: Trace formula consists of 289 conjuncts, 15 conjunts are in the unsatisfiable core [2019-05-23 11:16:07,372 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:07,436 INFO L146 ILogger]: Checked inductivity of 870 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2019-05-23 11:16:07,460 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:16:07,460 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-05-23 11:16:07,461 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:16:07,461 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:16:07,461 INFO L146 ILogger]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:16:07,461 INFO L146 ILogger]: Start difference. First operand 211 states and 217 transitions. Second operand 14 states. [2019-05-23 11:16:07,969 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:07,969 INFO L146 ILogger]: Finished difference Result 415 states and 432 transitions. [2019-05-23 11:16:07,969 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:16:07,970 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 206 [2019-05-23 11:16:07,970 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:07,972 INFO L146 ILogger]: With dead ends: 415 [2019-05-23 11:16:07,972 INFO L146 ILogger]: Without dead ends: 241 [2019-05-23 11:16:07,973 INFO L146 ILogger]: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:16:07,974 INFO L146 ILogger]: Start minimizeSevpa. Operand 241 states. [2019-05-23 11:16:07,979 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 241 to 229. [2019-05-23 11:16:07,980 INFO L146 ILogger]: Start removeUnreachable. Operand 229 states. [2019-05-23 11:16:07,980 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 229 states to 229 states and 235 transitions. [2019-05-23 11:16:07,981 INFO L146 ILogger]: Start accepts. Automaton has 229 states and 235 transitions. Word has length 206 [2019-05-23 11:16:07,981 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:07,981 INFO L146 ILogger]: Abstraction has 229 states and 235 transitions. [2019-05-23 11:16:07,981 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:16:07,981 INFO L146 ILogger]: Start isEmpty. Operand 229 states and 235 transitions. [2019-05-23 11:16:07,983 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 225 [2019-05-23 11:16:07,983 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:07,983 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:16:07,983 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:07,984 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:07,984 INFO L146 ILogger]: Analyzing trace with hash 1649628989, now seen corresponding path program 10 times [2019-05-23 11:16:07,984 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:07,984 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:07,985 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:07,985 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:16:07,985 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:08,019 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:08,400 INFO L146 ILogger]: Checked inductivity of 1056 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2019-05-23 11:16:08,400 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:08,401 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 11:16:08,410 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:16:08,457 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:16:08,457 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:08,458 INFO L146 ILogger]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:16:08,461 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:16:08,551 INFO L146 ILogger]: Checked inductivity of 1056 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2019-05-23 11:16:08,570 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:16:08,570 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-05-23 11:16:08,571 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:16:08,571 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:16:08,571 INFO L146 ILogger]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:16:08,571 INFO L146 ILogger]: Start difference. First operand 229 states and 235 transitions. Second operand 15 states. [2019-05-23 11:16:08,969 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:16:08,969 INFO L146 ILogger]: Finished difference Result 448 states and 465 transitions. [2019-05-23 11:16:08,970 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:16:08,970 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 224 [2019-05-23 11:16:08,971 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:16:08,972 INFO L146 ILogger]: With dead ends: 448 [2019-05-23 11:16:08,973 INFO L146 ILogger]: Without dead ends: 259 [2019-05-23 11:16:08,974 INFO L146 ILogger]: 0 DeclaredPredicates, 237 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:16:08,974 INFO L146 ILogger]: Start minimizeSevpa. Operand 259 states. [2019-05-23 11:16:08,979 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 259 to 247. [2019-05-23 11:16:08,979 INFO L146 ILogger]: Start removeUnreachable. Operand 247 states. [2019-05-23 11:16:08,980 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 247 states to 247 states and 253 transitions. [2019-05-23 11:16:08,980 INFO L146 ILogger]: Start accepts. Automaton has 247 states and 253 transitions. Word has length 224 [2019-05-23 11:16:08,981 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:16:08,981 INFO L146 ILogger]: Abstraction has 247 states and 253 transitions. [2019-05-23 11:16:08,981 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:16:08,981 INFO L146 ILogger]: Start isEmpty. Operand 247 states and 253 transitions. [2019-05-23 11:16:08,982 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 243 [2019-05-23 11:16:08,982 INFO L146 ILogger]: Found error trace [2019-05-23 11:16:08,983 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:16:08,983 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:16:08,983 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:16:08,983 INFO L146 ILogger]: Analyzing trace with hash 1744972288, now seen corresponding path program 11 times [2019-05-23 11:16:08,984 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:16:08,984 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:16:08,984 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:08,985 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:16:08,985 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:16:09,018 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:16:09,284 INFO L146 ILogger]: Checked inductivity of 1260 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2019-05-23 11:16:09,284 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:16:09,284 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 11:16:09,299 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1