java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/reducercommutativity/sum05_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:24:10,763 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:24:10,765 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:24:10,777 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:24:10,777 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:24:10,778 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:24:10,779 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:24:10,781 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:24:10,783 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:24:10,784 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:24:10,785 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:24:10,785 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:24:10,786 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:24:10,787 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:24:10,788 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:24:10,789 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:24:10,790 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:24:10,791 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:24:10,794 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:24:10,795 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:24:10,796 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:24:10,798 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:24:10,800 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:24:10,800 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:24:10,801 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:24:10,801 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:24:10,802 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:24:10,804 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:24:10,805 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:24:10,806 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:24:10,806 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:24:10,807 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:24:10,808 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:24:10,809 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:24:10,809 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:24:10,809 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:24:10,810 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:24:10,811 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:24:10,811 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:24:10,812 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:24:10,826 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:24:10,827 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:24:10,828 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:24:10,828 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:24:10,828 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:24:10,828 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:24:10,829 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:24:10,829 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:24:10,829 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:24:10,829 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:24:10,829 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:24:10,830 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:24:10,830 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:24:10,830 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:24:10,830 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:24:10,830 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:24:10,831 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:24:10,831 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:24:10,831 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:24:10,831 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:24:10,831 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:24:10,832 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:24:10,832 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:24:10,832 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:24:10,832 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:24:10,832 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:24:10,833 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:24:10,833 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:24:10,833 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 11:24:10,867 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:24:10,881 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:24:10,886 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:24:10,888 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:24:10,888 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:24:10,889 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/reducercommutativity/sum05_true-unreach-call_true-termination.i [2019-05-23 11:24:10,954 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7553d970/f1e2b15b046a41699033031fee446839/FLAG09eae58b6 [2019-05-23 11:24:11,379 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:24:11,380 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/reducercommutativity/sum05_true-unreach-call_true-termination.i [2019-05-23 11:24:11,387 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7553d970/f1e2b15b046a41699033031fee446839/FLAG09eae58b6 [2019-05-23 11:24:11,756 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7553d970/f1e2b15b046a41699033031fee446839 [2019-05-23 11:24:11,765 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:24:11,767 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:24:11,768 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:24:11,768 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:24:11,772 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:24:11,773 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:24:11" (1/1) ... [2019-05-23 11:24:11,776 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d904b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:11, skipping insertion in model container [2019-05-23 11:24:11,776 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:24:11" (1/1) ... [2019-05-23 11:24:11,783 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:24:11,803 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:24:12,019 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:24:12,033 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:24:12,078 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:24:12,104 INFO L146 ILogger]: Completed translation [2019-05-23 11:24:12,105 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12 WrapperNode [2019-05-23 11:24:12,105 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:24:12,106 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:24:12,106 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:24:12,106 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:24:12,115 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,123 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,155 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:24:12,156 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:24:12,156 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:24:12,156 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:24:12,165 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,165 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,167 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,168 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,176 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,269 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,270 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (1/1) ... [2019-05-23 11:24:12,273 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:24:12,274 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:24:12,274 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:24:12,274 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:24:12,275 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (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 11:24:12,339 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:24:12,339 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:24:12,340 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:24:12,340 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:24:12,340 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:24:12,340 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:24:12,925 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:24:12,926 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:24:12,927 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:24:12 BoogieIcfgContainer [2019-05-23 11:24:12,927 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:24:12,928 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:24:12,928 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:24:12,931 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:24:12,931 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:24:11" (1/3) ... [2019-05-23 11:24:12,932 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6ecc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:24:12, skipping insertion in model container [2019-05-23 11:24:12,932 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:12" (2/3) ... [2019-05-23 11:24:12,933 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6ecc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:24:12, skipping insertion in model container [2019-05-23 11:24:12,933 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:24:12" (3/3) ... [2019-05-23 11:24:12,935 INFO L146 ILogger]: Analyzing ICFG sum05_true-unreach-call_true-termination.i [2019-05-23 11:24:12,943 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:24:12,949 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:24:12,963 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:24:12,994 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:24:12,994 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:24:12,995 INFO L146 ILogger]: Hoare is true [2019-05-23 11:24:12,995 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:24:12,996 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:24:12,996 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:24:12,996 INFO L146 ILogger]: Difference is false [2019-05-23 11:24:12,997 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:24:12,997 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:24:13,015 INFO L146 ILogger]: Start isEmpty. Operand 105 states. [2019-05-23 11:24:13,024 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 69 [2019-05-23 11:24:13,025 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:13,026 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:13,028 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:13,033 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:13,033 INFO L146 ILogger]: Analyzing trace with hash -503519154, now seen corresponding path program 1 times [2019-05-23 11:24:13,034 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:13,035 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:13,078 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:13,078 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:13,078 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:13,121 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:13,224 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 11:24:13,227 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:24:13,228 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:24:13,231 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:24:13,245 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:24:13,246 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:24:13,248 INFO L146 ILogger]: Start difference. First operand 105 states. Second operand 3 states. [2019-05-23 11:24:13,315 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:13,316 INFO L146 ILogger]: Finished difference Result 199 states and 219 transitions. [2019-05-23 11:24:13,317 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:24:13,318 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 68 [2019-05-23 11:24:13,318 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:13,330 INFO L146 ILogger]: With dead ends: 199 [2019-05-23 11:24:13,331 INFO L146 ILogger]: Without dead ends: 105 [2019-05-23 11:24:13,335 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 11:24:13,354 INFO L146 ILogger]: Start minimizeSevpa. Operand 105 states. [2019-05-23 11:24:13,376 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 105 to 100. [2019-05-23 11:24:13,377 INFO L146 ILogger]: Start removeUnreachable. Operand 100 states. [2019-05-23 11:24:13,379 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2019-05-23 11:24:13,381 INFO L146 ILogger]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 68 [2019-05-23 11:24:13,382 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:13,382 INFO L146 ILogger]: Abstraction has 100 states and 104 transitions. [2019-05-23 11:24:13,382 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:24:13,382 INFO L146 ILogger]: Start isEmpty. Operand 100 states and 104 transitions. [2019-05-23 11:24:13,385 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:24:13,385 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:13,386 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:13,386 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:13,387 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:13,387 INFO L146 ILogger]: Analyzing trace with hash -1483383517, now seen corresponding path program 1 times [2019-05-23 11:24:13,387 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:13,387 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:13,389 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:13,389 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:13,389 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:13,439 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:13,582 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 11:24:13,582 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:13,583 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 11:24:13,603 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:13,655 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:13,657 INFO L146 ILogger]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:24:13,666 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:13,750 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 11:24:13,782 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:24:13,782 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:24:13,784 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:24:13,787 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:24:13,788 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:24:13,788 INFO L146 ILogger]: Start difference. First operand 100 states and 104 transitions. Second operand 6 states. [2019-05-23 11:24:14,381 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:14,382 INFO L146 ILogger]: Finished difference Result 212 states and 223 transitions. [2019-05-23 11:24:14,383 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:24:14,383 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 75 [2019-05-23 11:24:14,384 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:14,385 INFO L146 ILogger]: With dead ends: 212 [2019-05-23 11:24:14,386 INFO L146 ILogger]: Without dead ends: 130 [2019-05-23 11:24:14,387 INFO L146 ILogger]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:24:14,388 INFO L146 ILogger]: Start minimizeSevpa. Operand 130 states. [2019-05-23 11:24:14,396 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 130 to 110. [2019-05-23 11:24:14,397 INFO L146 ILogger]: Start removeUnreachable. Operand 110 states. [2019-05-23 11:24:14,398 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2019-05-23 11:24:14,399 INFO L146 ILogger]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 75 [2019-05-23 11:24:14,399 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:14,411 INFO L146 ILogger]: Abstraction has 110 states and 114 transitions. [2019-05-23 11:24:14,411 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:24:14,411 INFO L146 ILogger]: Start isEmpty. Operand 110 states and 114 transitions. [2019-05-23 11:24:14,415 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 104 [2019-05-23 11:24:14,415 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:14,416 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:14,416 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:14,416 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:14,416 INFO L146 ILogger]: Analyzing trace with hash -483601032, now seen corresponding path program 1 times [2019-05-23 11:24:14,417 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:14,417 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:14,418 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:14,418 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:14,418 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:14,440 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:14,524 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 11:24:14,524 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:14,524 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 11:24:14,545 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:14,592 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:14,593 INFO L146 ILogger]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:24:14,597 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:14,680 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-05-23 11:24:14,698 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:24:14,698 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:24:14,699 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:24:14,700 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:24:14,700 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:24:14,700 INFO L146 ILogger]: Start difference. First operand 110 states and 114 transitions. Second operand 6 states. [2019-05-23 11:24:15,254 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:15,254 INFO L146 ILogger]: Finished difference Result 221 states and 231 transitions. [2019-05-23 11:24:15,254 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:24:15,255 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 103 [2019-05-23 11:24:15,255 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:15,258 INFO L146 ILogger]: With dead ends: 221 [2019-05-23 11:24:15,258 INFO L146 ILogger]: Without dead ends: 152 [2019-05-23 11:24:15,259 INFO L146 ILogger]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:24:15,260 INFO L146 ILogger]: Start minimizeSevpa. Operand 152 states. [2019-05-23 11:24:15,268 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 152 to 132. [2019-05-23 11:24:15,268 INFO L146 ILogger]: Start removeUnreachable. Operand 132 states. [2019-05-23 11:24:15,270 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2019-05-23 11:24:15,270 INFO L146 ILogger]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 103 [2019-05-23 11:24:15,270 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:15,270 INFO L146 ILogger]: Abstraction has 132 states and 136 transitions. [2019-05-23 11:24:15,271 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:24:15,271 INFO L146 ILogger]: Start isEmpty. Operand 132 states and 136 transitions. [2019-05-23 11:24:15,273 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 132 [2019-05-23 11:24:15,273 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:15,273 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:15,274 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:15,274 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:15,274 INFO L146 ILogger]: Analyzing trace with hash 46998236, now seen corresponding path program 1 times [2019-05-23 11:24:15,274 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:15,274 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:15,275 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:15,276 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:15,276 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:15,309 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:15,414 INFO L146 ILogger]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:24:15,414 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:15,414 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 11:24:15,428 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:15,482 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:15,484 INFO L146 ILogger]: Trace formula consists of 219 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:24:15,489 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:15,647 INFO L146 ILogger]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-05-23 11:24:15,666 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:15,667 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:24:15,667 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:24:15,667 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:24:15,668 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:24:15,668 INFO L146 ILogger]: Start difference. First operand 132 states and 136 transitions. Second operand 10 states. [2019-05-23 11:24:16,288 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:16,288 INFO L146 ILogger]: Finished difference Result 263 states and 272 transitions. [2019-05-23 11:24:16,288 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:24:16,289 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 131 [2019-05-23 11:24:16,289 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:16,291 INFO L146 ILogger]: With dead ends: 263 [2019-05-23 11:24:16,291 INFO L146 ILogger]: Without dead ends: 156 [2019-05-23 11:24:16,293 INFO L146 ILogger]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:24:16,294 INFO L146 ILogger]: Start minimizeSevpa. Operand 156 states. [2019-05-23 11:24:16,305 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 156 to 146. [2019-05-23 11:24:16,306 INFO L146 ILogger]: Start removeUnreachable. Operand 146 states. [2019-05-23 11:24:16,309 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2019-05-23 11:24:16,312 INFO L146 ILogger]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 131 [2019-05-23 11:24:16,312 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:16,312 INFO L146 ILogger]: Abstraction has 146 states and 150 transitions. [2019-05-23 11:24:16,313 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:24:16,314 INFO L146 ILogger]: Start isEmpty. Operand 146 states and 150 transitions. [2019-05-23 11:24:16,316 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 146 [2019-05-23 11:24:16,317 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:16,317 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:16,317 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:16,317 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:16,320 INFO L146 ILogger]: Analyzing trace with hash -1200733213, now seen corresponding path program 2 times [2019-05-23 11:24:16,320 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:16,320 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:16,322 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:16,322 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:16,322 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:16,358 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:16,521 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:24:16,521 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:16,521 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 11:24:16,530 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:24:16,597 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:24:16,597 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:16,599 INFO L146 ILogger]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:24:16,604 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:16,922 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:24:16,954 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:16,954 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:24:16,955 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:24:16,955 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:24:16,956 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:24:16,956 INFO L146 ILogger]: Start difference. First operand 146 states and 150 transitions. Second operand 11 states. [2019-05-23 11:24:17,284 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:17,284 INFO L146 ILogger]: Finished difference Result 272 states and 280 transitions. [2019-05-23 11:24:17,287 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:24:17,288 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 145 [2019-05-23 11:24:17,288 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:17,289 INFO L146 ILogger]: With dead ends: 272 [2019-05-23 11:24:17,289 INFO L146 ILogger]: Without dead ends: 158 [2019-05-23 11:24:17,293 INFO L146 ILogger]: 0 DeclaredPredicates, 159 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:24:17,293 INFO L146 ILogger]: Start minimizeSevpa. Operand 158 states. [2019-05-23 11:24:17,305 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 158 to 153. [2019-05-23 11:24:17,306 INFO L146 ILogger]: Start removeUnreachable. Operand 153 states. [2019-05-23 11:24:17,306 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 153 states to 153 states and 157 transitions. [2019-05-23 11:24:17,306 INFO L146 ILogger]: Start accepts. Automaton has 153 states and 157 transitions. Word has length 145 [2019-05-23 11:24:17,307 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:17,307 INFO L146 ILogger]: Abstraction has 153 states and 157 transitions. [2019-05-23 11:24:17,307 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:24:17,307 INFO L146 ILogger]: Start isEmpty. Operand 153 states and 157 transitions. [2019-05-23 11:24:17,309 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 153 [2019-05-23 11:24:17,309 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:17,310 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:17,310 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:17,310 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:17,310 INFO L146 ILogger]: Analyzing trace with hash 104748121, now seen corresponding path program 3 times [2019-05-23 11:24:17,310 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:17,311 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:17,311 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:17,312 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:17,312 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:17,349 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:17,548 INFO L146 ILogger]: Checked inductivity of 82 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:24:17,548 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:17,548 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 11:24:17,558 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:24:17,607 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:24:17,608 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:17,609 INFO L146 ILogger]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:24:17,612 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:17,723 INFO L146 ILogger]: Checked inductivity of 82 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-05-23 11:24:17,743 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:17,743 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 16 [2019-05-23 11:24:17,744 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:24:17,744 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:24:17,745 INFO L146 ILogger]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:24:17,745 INFO L146 ILogger]: Start difference. First operand 153 states and 157 transitions. Second operand 16 states. [2019-05-23 11:24:18,275 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:18,275 INFO L146 ILogger]: Finished difference Result 310 states and 321 transitions. [2019-05-23 11:24:18,276 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:24:18,276 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 152 [2019-05-23 11:24:18,276 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:18,278 INFO L146 ILogger]: With dead ends: 310 [2019-05-23 11:24:18,278 INFO L146 ILogger]: Without dead ends: 196 [2019-05-23 11:24:18,279 INFO L146 ILogger]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:24:18,279 INFO L146 ILogger]: Start minimizeSevpa. Operand 196 states. [2019-05-23 11:24:18,286 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 196 to 181. [2019-05-23 11:24:18,286 INFO L146 ILogger]: Start removeUnreachable. Operand 181 states. [2019-05-23 11:24:18,287 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2019-05-23 11:24:18,287 INFO L146 ILogger]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 152 [2019-05-23 11:24:18,288 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:18,288 INFO L146 ILogger]: Abstraction has 181 states and 185 transitions. [2019-05-23 11:24:18,288 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:24:18,288 INFO L146 ILogger]: Start isEmpty. Operand 181 states and 185 transitions. [2019-05-23 11:24:18,290 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 181 [2019-05-23 11:24:18,290 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:18,290 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:18,291 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:18,291 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:18,291 INFO L146 ILogger]: Analyzing trace with hash -9292050, now seen corresponding path program 4 times [2019-05-23 11:24:18,291 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:18,291 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:18,292 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:18,292 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:18,293 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:18,321 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:18,480 INFO L146 ILogger]: Checked inductivity of 156 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:24:18,480 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:18,480 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 11:24:18,489 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:24:18,543 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:24:18,543 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:18,544 INFO L146 ILogger]: Trace formula consists of 261 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:24:18,547 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:18,620 INFO L146 ILogger]: Checked inductivity of 156 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:24:18,639 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:18,639 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:24:18,639 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:24:18,640 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:24:18,641 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:24:18,641 INFO L146 ILogger]: Start difference. First operand 181 states and 185 transitions. Second operand 11 states. [2019-05-23 11:24:18,922 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:18,922 INFO L146 ILogger]: Finished difference Result 322 states and 331 transitions. [2019-05-23 11:24:18,923 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:24:18,923 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 180 [2019-05-23 11:24:18,923 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:18,925 INFO L146 ILogger]: With dead ends: 322 [2019-05-23 11:24:18,925 INFO L146 ILogger]: Without dead ends: 217 [2019-05-23 11:24:18,926 INFO L146 ILogger]: 0 DeclaredPredicates, 194 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:24:18,926 INFO L146 ILogger]: Start minimizeSevpa. Operand 217 states. [2019-05-23 11:24:18,932 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 217 to 202. [2019-05-23 11:24:18,932 INFO L146 ILogger]: Start removeUnreachable. Operand 202 states. [2019-05-23 11:24:18,933 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 202 states to 202 states and 206 transitions. [2019-05-23 11:24:18,933 INFO L146 ILogger]: Start accepts. Automaton has 202 states and 206 transitions. Word has length 180 [2019-05-23 11:24:18,934 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:18,934 INFO L146 ILogger]: Abstraction has 202 states and 206 transitions. [2019-05-23 11:24:18,934 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:24:18,934 INFO L146 ILogger]: Start isEmpty. Operand 202 states and 206 transitions. [2019-05-23 11:24:18,936 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 202 [2019-05-23 11:24:18,936 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:18,936 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:18,937 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:18,937 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:18,937 INFO L146 ILogger]: Analyzing trace with hash -1964240509, now seen corresponding path program 5 times [2019-05-23 11:24:18,937 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:18,937 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:18,941 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:18,941 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:18,942 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:18,996 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:19,184 INFO L146 ILogger]: Checked inductivity of 222 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-05-23 11:24:19,185 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:19,185 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 11:24:19,194 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:24:19,309 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:24:19,309 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:19,311 INFO L146 ILogger]: Trace formula consists of 325 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:24:19,314 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:19,387 INFO L146 ILogger]: Checked inductivity of 222 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-05-23 11:24:19,406 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:19,406 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2019-05-23 11:24:19,407 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:24:19,407 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:24:19,407 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:24:19,407 INFO L146 ILogger]: Start difference. First operand 202 states and 206 transitions. Second operand 13 states. [2019-05-23 11:24:19,970 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:19,970 INFO L146 ILogger]: Finished difference Result 342 states and 351 transitions. [2019-05-23 11:24:19,971 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:24:19,971 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 201 [2019-05-23 11:24:19,972 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:19,974 INFO L146 ILogger]: With dead ends: 342 [2019-05-23 11:24:19,974 INFO L146 ILogger]: Without dead ends: 223 [2019-05-23 11:24:19,975 INFO L146 ILogger]: 0 DeclaredPredicates, 227 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:24:19,976 INFO L146 ILogger]: Start minimizeSevpa. Operand 223 states. [2019-05-23 11:24:19,980 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 223 to 223. [2019-05-23 11:24:19,981 INFO L146 ILogger]: Start removeUnreachable. Operand 223 states. [2019-05-23 11:24:19,981 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 223 states to 223 states and 227 transitions. [2019-05-23 11:24:19,982 INFO L146 ILogger]: Start accepts. Automaton has 223 states and 227 transitions. Word has length 201 [2019-05-23 11:24:19,982 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:19,982 INFO L146 ILogger]: Abstraction has 223 states and 227 transitions. [2019-05-23 11:24:19,982 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:24:19,983 INFO L146 ILogger]: Start isEmpty. Operand 223 states and 227 transitions. [2019-05-23 11:24:19,985 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 223 [2019-05-23 11:24:19,985 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:19,985 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:19,986 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:19,986 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:19,986 INFO L146 ILogger]: Analyzing trace with hash 714971662, now seen corresponding path program 6 times [2019-05-23 11:24:19,986 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:19,986 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:19,987 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:19,987 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:19,988 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:20,015 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:20,167 INFO L146 ILogger]: Checked inductivity of 309 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:24:20,167 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:20,168 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 11:24:20,176 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:24:20,287 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-05-23 11:24:20,288 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:20,289 INFO L146 ILogger]: Trace formula consists of 315 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:24:20,291 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:20,393 INFO L146 ILogger]: Checked inductivity of 309 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:24:20,415 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:20,415 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-05-23 11:24:20,415 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:24:20,416 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:24:20,416 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:24:20,416 INFO L146 ILogger]: Start difference. First operand 223 states and 227 transitions. Second operand 9 states. [2019-05-23 11:24:20,521 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:20,522 INFO L146 ILogger]: Finished difference Result 288 states and 293 transitions. [2019-05-23 11:24:20,522 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:24:20,522 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 222 [2019-05-23 11:24:20,523 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:20,524 INFO L146 ILogger]: With dead ends: 288 [2019-05-23 11:24:20,524 INFO L146 ILogger]: Without dead ends: 235 [2019-05-23 11:24:20,525 INFO L146 ILogger]: 0 DeclaredPredicates, 232 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:24:20,525 INFO L146 ILogger]: Start minimizeSevpa. Operand 235 states. [2019-05-23 11:24:20,530 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 235 to 230. [2019-05-23 11:24:20,530 INFO L146 ILogger]: Start removeUnreachable. Operand 230 states. [2019-05-23 11:24:20,531 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 230 states to 230 states and 234 transitions. [2019-05-23 11:24:20,531 INFO L146 ILogger]: Start accepts. Automaton has 230 states and 234 transitions. Word has length 222 [2019-05-23 11:24:20,531 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:20,532 INFO L146 ILogger]: Abstraction has 230 states and 234 transitions. [2019-05-23 11:24:20,532 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:24:20,532 INFO L146 ILogger]: Start isEmpty. Operand 230 states and 234 transitions. [2019-05-23 11:24:20,534 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 230 [2019-05-23 11:24:20,534 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:20,534 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:20,535 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:20,535 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:20,535 INFO L146 ILogger]: Analyzing trace with hash 1877950841, now seen corresponding path program 7 times [2019-05-23 11:24:20,535 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:20,535 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:20,536 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:20,536 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:20,536 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:20,562 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:20,692 INFO L146 ILogger]: Checked inductivity of 324 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:24:20,693 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:20,693 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 11:24:20,703 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:20,764 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:20,765 INFO L146 ILogger]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:24:20,770 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:21,033 INFO L146 ILogger]: Checked inductivity of 324 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:24:21,053 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:21,053 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:24:21,053 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:24:21,054 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:24:21,054 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:24:21,054 INFO L146 ILogger]: Start difference. First operand 230 states and 234 transitions. Second operand 11 states. [2019-05-23 11:24:21,240 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:21,240 INFO L146 ILogger]: Finished difference Result 290 states and 295 transitions. [2019-05-23 11:24:21,241 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:24:21,241 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 229 [2019-05-23 11:24:21,241 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:21,242 INFO L146 ILogger]: With dead ends: 290 [2019-05-23 11:24:21,242 INFO L146 ILogger]: Without dead ends: 237 [2019-05-23 11:24:21,243 INFO L146 ILogger]: 0 DeclaredPredicates, 243 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:24:21,243 INFO L146 ILogger]: Start minimizeSevpa. Operand 237 states. [2019-05-23 11:24:21,247 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 237 to 237. [2019-05-23 11:24:21,247 INFO L146 ILogger]: Start removeUnreachable. Operand 237 states. [2019-05-23 11:24:21,248 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 237 states to 237 states and 241 transitions. [2019-05-23 11:24:21,248 INFO L146 ILogger]: Start accepts. Automaton has 237 states and 241 transitions. Word has length 229 [2019-05-23 11:24:21,249 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:21,249 INFO L146 ILogger]: Abstraction has 237 states and 241 transitions. [2019-05-23 11:24:21,249 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:24:21,249 INFO L146 ILogger]: Start isEmpty. Operand 237 states and 241 transitions. [2019-05-23 11:24:21,251 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 237 [2019-05-23 11:24:21,252 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:21,252 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:24:21,252 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:21,252 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:21,253 INFO L146 ILogger]: Analyzing trace with hash 216103854, now seen corresponding path program 8 times [2019-05-23 11:24:21,253 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:21,253 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:21,254 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:21,254 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:21,254 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:21,514 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:25,335 WARN L146 ILogger]: Spent 241.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2019-05-23 11:24:25,789 WARN L146 ILogger]: Spent 377.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 8 [2019-05-23 11:24:26,158 WARN L146 ILogger]: Spent 266.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 9 [2019-05-23 11:24:27,906 WARN L146 ILogger]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2019-05-23 11:24:28,287 WARN L146 ILogger]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2019-05-23 11:24:28,512 WARN L146 ILogger]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2019-05-23 11:24:28,854 WARN L146 ILogger]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2019-05-23 11:24:29,035 WARN L146 ILogger]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2019-05-23 11:24:29,198 WARN L146 ILogger]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 39 [2019-05-23 11:24:29,359 WARN L146 ILogger]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-05-23 11:24:29,526 WARN L146 ILogger]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-05-23 11:24:29,708 WARN L146 ILogger]: Spent 114.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2019-05-23 11:24:29,898 WARN L146 ILogger]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 43 [2019-05-23 11:24:30,062 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 43 [2019-05-23 11:24:43,112 WARN L146 ILogger]: Spent 215.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 29 [2019-05-23 11:25:19,758 WARN L146 ILogger]: Spent 266.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 54