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-multidimensional/rev-3-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:32:07,008 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:32:07,010 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:32:07,022 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:32:07,022 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:32:07,023 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:32:07,025 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:32:07,027 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:32:07,029 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:32:07,030 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:32:07,031 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:32:07,032 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:32:07,033 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:32:07,034 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:32:07,035 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:32:07,036 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:32:07,037 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:32:07,039 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:32:07,041 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:32:07,043 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:32:07,045 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:32:07,046 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:32:07,049 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:32:07,049 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:32:07,050 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:32:07,051 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:32:07,051 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:32:07,052 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:32:07,053 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:32:07,054 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:32:07,055 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:32:07,056 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:32:07,057 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:32:07,057 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:32:07,058 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:32:07,058 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:32:07,059 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:32:07,060 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:32:07,061 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:32:07,061 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:32:07,091 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:32:07,091 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:32:07,093 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:32:07,094 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:32:07,094 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:32:07,094 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:32:07,094 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:32:07,094 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:32:07,095 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:32:07,096 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:32:07,096 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:32:07,096 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:32:07,096 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:32:07,096 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:32:07,097 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:32:07,097 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:32:07,097 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:32:07,097 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:32:07,097 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:32:07,098 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:32:07,098 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:32:07,098 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:32:07,098 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:32:07,099 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:32:07,099 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:32:07,099 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:32:07,099 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:32:07,099 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:32:07,100 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 11:32:07,133 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:32:07,151 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:32:07,158 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:32:07,160 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:32:07,161 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:32:07,163 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/rev-3-u_true-unreach-call.i [2019-05-23 11:32:07,221 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bba1c80f/8515e4f8d3604f5c9b2026d9c309d93f/FLAGf14c76d79 [2019-05-23 11:32:07,679 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:32:07,680 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/rev-3-u_true-unreach-call.i [2019-05-23 11:32:07,686 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bba1c80f/8515e4f8d3604f5c9b2026d9c309d93f/FLAGf14c76d79 [2019-05-23 11:32:08,011 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bba1c80f/8515e4f8d3604f5c9b2026d9c309d93f [2019-05-23 11:32:08,021 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:32:08,023 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:32:08,023 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:32:08,024 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:32:08,027 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:32:08,028 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,031 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e46996c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08, skipping insertion in model container [2019-05-23 11:32:08,031 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,039 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:32:08,064 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:32:08,301 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:32:08,306 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:32:08,364 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:32:08,397 INFO L146 ILogger]: Completed translation [2019-05-23 11:32:08,398 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08 WrapperNode [2019-05-23 11:32:08,398 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:32:08,399 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:32:08,399 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:32:08,399 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:32:08,410 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,425 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,453 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:32:08,454 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:32:08,454 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:32:08,454 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:32:08,464 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,465 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,467 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,467 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,484 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,499 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,504 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (1/1) ... [2019-05-23 11:32:08,508 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:32:08,508 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:32:08,509 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:32:08,509 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:32:08,512 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (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 11:32:08,698 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:32:08,698 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:32:08,698 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:32:08,698 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:32:08,698 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:32:08,699 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:32:09,268 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:32:09,268 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:32:09,269 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:32:09 BoogieIcfgContainer [2019-05-23 11:32:09,269 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:32:09,270 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:32:09,270 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:32:09,273 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:32:09,273 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:32:08" (1/3) ... [2019-05-23 11:32:09,274 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e47ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:32:09, skipping insertion in model container [2019-05-23 11:32:09,274 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:08" (2/3) ... [2019-05-23 11:32:09,275 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e47ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:32:09, skipping insertion in model container [2019-05-23 11:32:09,275 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:32:09" (3/3) ... [2019-05-23 11:32:09,277 INFO L146 ILogger]: Analyzing ICFG rev-3-u_true-unreach-call.i [2019-05-23 11:32:09,286 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:32:09,296 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:32:09,312 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:32:09,345 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:32:09,346 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:32:09,346 INFO L146 ILogger]: Hoare is true [2019-05-23 11:32:09,347 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:32:09,347 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:32:09,348 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:32:09,348 INFO L146 ILogger]: Difference is false [2019-05-23 11:32:09,348 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:32:09,348 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:32:09,363 INFO L146 ILogger]: Start isEmpty. Operand 70 states. [2019-05-23 11:32:09,370 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 35 [2019-05-23 11:32:09,371 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:09,372 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] [2019-05-23 11:32:09,374 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:09,379 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:09,379 INFO L146 ILogger]: Analyzing trace with hash -1125475033, now seen corresponding path program 1 times [2019-05-23 11:32:09,381 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:09,381 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:09,430 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:09,430 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:09,431 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:09,469 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:09,469 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:09,469 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:09,488 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:09,517 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:09,519 INFO L146 ILogger]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:32:09,526 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:09,631 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 11:32:09,663 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:32:09,664 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:32:09,667 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:32:09,681 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:32:09,682 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:09,684 INFO L146 ILogger]: Start difference. First operand 70 states. Second operand 4 states. [2019-05-23 11:32:10,103 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:10,104 INFO L146 ILogger]: Finished difference Result 170 states and 225 transitions. [2019-05-23 11:32:10,104 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:32:10,106 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 34 [2019-05-23 11:32:10,106 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:10,123 INFO L146 ILogger]: With dead ends: 170 [2019-05-23 11:32:10,123 INFO L146 ILogger]: Without dead ends: 105 [2019-05-23 11:32:10,127 INFO L146 ILogger]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:10,147 INFO L146 ILogger]: Start minimizeSevpa. Operand 105 states. [2019-05-23 11:32:10,176 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 105 to 64. [2019-05-23 11:32:10,178 INFO L146 ILogger]: Start removeUnreachable. Operand 64 states. [2019-05-23 11:32:10,181 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2019-05-23 11:32:10,184 INFO L146 ILogger]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 34 [2019-05-23 11:32:10,184 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:10,184 INFO L146 ILogger]: Abstraction has 64 states and 72 transitions. [2019-05-23 11:32:10,184 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:32:10,185 INFO L146 ILogger]: Start isEmpty. Operand 64 states and 72 transitions. [2019-05-23 11:32:10,187 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 45 [2019-05-23 11:32:10,187 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:10,188 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 11:32:10,189 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:10,189 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:10,189 INFO L146 ILogger]: Analyzing trace with hash 1476191079, now seen corresponding path program 1 times [2019-05-23 11:32:10,189 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:10,190 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:10,191 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:10,191 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:10,191 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:10,196 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:10,196 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:10,197 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:10,208 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:10,229 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:10,230 INFO L146 ILogger]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:32:10,233 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:10,311 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:32:10,341 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:32:10,342 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:32:10,343 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:32:10,343 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:32:10,345 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:10,345 INFO L146 ILogger]: Start difference. First operand 64 states and 72 transitions. Second operand 4 states. [2019-05-23 11:32:10,568 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:10,569 INFO L146 ILogger]: Finished difference Result 149 states and 171 transitions. [2019-05-23 11:32:10,574 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:32:10,574 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 44 [2019-05-23 11:32:10,575 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:10,576 INFO L146 ILogger]: With dead ends: 149 [2019-05-23 11:32:10,577 INFO L146 ILogger]: Without dead ends: 99 [2019-05-23 11:32:10,579 INFO L146 ILogger]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:10,580 INFO L146 ILogger]: Start minimizeSevpa. Operand 99 states. [2019-05-23 11:32:10,597 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 99 to 67. [2019-05-23 11:32:10,597 INFO L146 ILogger]: Start removeUnreachable. Operand 67 states. [2019-05-23 11:32:10,599 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2019-05-23 11:32:10,599 INFO L146 ILogger]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 44 [2019-05-23 11:32:10,600 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:10,600 INFO L146 ILogger]: Abstraction has 67 states and 75 transitions. [2019-05-23 11:32:10,600 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:32:10,600 INFO L146 ILogger]: Start isEmpty. Operand 67 states and 75 transitions. [2019-05-23 11:32:10,602 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 53 [2019-05-23 11:32:10,602 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:10,603 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:32:10,603 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:10,603 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:10,603 INFO L146 ILogger]: Analyzing trace with hash 2135337991, now seen corresponding path program 1 times [2019-05-23 11:32:10,604 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:10,604 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:10,605 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:10,606 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:10,606 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:10,611 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:10,611 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:10,611 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:10,627 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:10,656 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:10,657 INFO L146 ILogger]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:32:10,660 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:10,699 INFO L146 ILogger]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:32:10,723 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:32:10,723 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:32:10,723 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:32:10,724 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:32:10,724 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:10,724 INFO L146 ILogger]: Start difference. First operand 67 states and 75 transitions. Second operand 4 states. [2019-05-23 11:32:11,218 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:11,219 INFO L146 ILogger]: Finished difference Result 152 states and 171 transitions. [2019-05-23 11:32:11,219 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:32:11,219 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 52 [2019-05-23 11:32:11,219 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:11,220 INFO L146 ILogger]: With dead ends: 152 [2019-05-23 11:32:11,221 INFO L146 ILogger]: Without dead ends: 99 [2019-05-23 11:32:11,221 INFO L146 ILogger]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:11,222 INFO L146 ILogger]: Start minimizeSevpa. Operand 99 states. [2019-05-23 11:32:11,230 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 99 to 70. [2019-05-23 11:32:11,230 INFO L146 ILogger]: Start removeUnreachable. Operand 70 states. [2019-05-23 11:32:11,231 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2019-05-23 11:32:11,231 INFO L146 ILogger]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 52 [2019-05-23 11:32:11,232 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:11,232 INFO L146 ILogger]: Abstraction has 70 states and 78 transitions. [2019-05-23 11:32:11,232 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:32:11,232 INFO L146 ILogger]: Start isEmpty. Operand 70 states and 78 transitions. [2019-05-23 11:32:11,233 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:32:11,234 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:11,234 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] [2019-05-23 11:32:11,234 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:11,234 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:11,234 INFO L146 ILogger]: Analyzing trace with hash 1660466617, now seen corresponding path program 1 times [2019-05-23 11:32:11,235 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:11,235 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:11,236 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:11,236 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:11,236 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:11,241 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:11,241 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:11,241 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:11,252 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:11,278 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:11,279 INFO L146 ILogger]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:32:11,282 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:11,329 INFO L146 ILogger]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:32:11,357 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:11,357 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:32:11,358 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:32:11,358 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:32:11,358 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:32:11,358 INFO L146 ILogger]: Start difference. First operand 70 states and 78 transitions. Second operand 5 states. [2019-05-23 11:32:11,651 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:11,652 INFO L146 ILogger]: Finished difference Result 177 states and 196 transitions. [2019-05-23 11:32:11,653 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:32:11,654 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 62 [2019-05-23 11:32:11,654 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:11,655 INFO L146 ILogger]: With dead ends: 177 [2019-05-23 11:32:11,655 INFO L146 ILogger]: Without dead ends: 121 [2019-05-23 11:32:11,656 INFO L146 ILogger]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:32:11,656 INFO L146 ILogger]: Start minimizeSevpa. Operand 121 states. [2019-05-23 11:32:11,664 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 121 to 90. [2019-05-23 11:32:11,664 INFO L146 ILogger]: Start removeUnreachable. Operand 90 states. [2019-05-23 11:32:11,665 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2019-05-23 11:32:11,665 INFO L146 ILogger]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 62 [2019-05-23 11:32:11,666 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:11,666 INFO L146 ILogger]: Abstraction has 90 states and 99 transitions. [2019-05-23 11:32:11,666 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:32:11,666 INFO L146 ILogger]: Start isEmpty. Operand 90 states and 99 transitions. [2019-05-23 11:32:11,668 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 73 [2019-05-23 11:32:11,668 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:11,668 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:32:11,669 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:11,669 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:11,669 INFO L146 ILogger]: Analyzing trace with hash -688727417, now seen corresponding path program 2 times [2019-05-23 11:32:11,669 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:11,669 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:11,670 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:11,670 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:11,671 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:11,675 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:11,675 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:11,675 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:11,691 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:32:11,729 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:32:11,729 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:11,730 INFO L146 ILogger]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:32:11,733 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:11,796 INFO L146 ILogger]: Checked inductivity of 18 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:32:11,814 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:11,814 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:32:11,815 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:32:11,815 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:32:11,815 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:32:11,816 INFO L146 ILogger]: Start difference. First operand 90 states and 99 transitions. Second operand 6 states. [2019-05-23 11:32:12,366 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:12,366 INFO L146 ILogger]: Finished difference Result 219 states and 239 transitions. [2019-05-23 11:32:12,367 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:32:12,367 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 72 [2019-05-23 11:32:12,367 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:12,369 INFO L146 ILogger]: With dead ends: 219 [2019-05-23 11:32:12,369 INFO L146 ILogger]: Without dead ends: 143 [2019-05-23 11:32:12,371 INFO L146 ILogger]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:32:12,371 INFO L146 ILogger]: Start minimizeSevpa. Operand 143 states. [2019-05-23 11:32:12,381 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 143 to 110. [2019-05-23 11:32:12,381 INFO L146 ILogger]: Start removeUnreachable. Operand 110 states. [2019-05-23 11:32:12,383 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2019-05-23 11:32:12,383 INFO L146 ILogger]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 72 [2019-05-23 11:32:12,383 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:12,383 INFO L146 ILogger]: Abstraction has 110 states and 120 transitions. [2019-05-23 11:32:12,384 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:32:12,384 INFO L146 ILogger]: Start isEmpty. Operand 110 states and 120 transitions. [2019-05-23 11:32:12,386 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 83 [2019-05-23 11:32:12,386 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:12,387 INFO L146 ILogger]: trace histogram [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, 1, 1, 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 11:32:12,387 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:12,387 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:12,388 INFO L146 ILogger]: Analyzing trace with hash -543988295, now seen corresponding path program 3 times [2019-05-23 11:32:12,388 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:12,388 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:12,389 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:12,389 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:32:12,389 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:12,394 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:12,394 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:12,394 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:12,409 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:32:12,431 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:32:12,431 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:12,432 INFO L146 ILogger]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:32:12,435 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:12,514 INFO L146 ILogger]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-05-23 11:32:12,533 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:12,533 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:32:12,533 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:32:12,534 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:32:12,534 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:32:12,534 INFO L146 ILogger]: Start difference. First operand 110 states and 120 transitions. Second operand 5 states. [2019-05-23 11:32:12,756 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:12,756 INFO L146 ILogger]: Finished difference Result 358 states and 393 transitions. [2019-05-23 11:32:12,756 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:32:12,756 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 82 [2019-05-23 11:32:12,757 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:12,758 INFO L146 ILogger]: With dead ends: 358 [2019-05-23 11:32:12,759 INFO L146 ILogger]: Without dead ends: 286 [2019-05-23 11:32:12,759 INFO L146 ILogger]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:32:12,760 INFO L146 ILogger]: Start minimizeSevpa. Operand 286 states. [2019-05-23 11:32:12,772 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 286 to 158. [2019-05-23 11:32:12,772 INFO L146 ILogger]: Start removeUnreachable. Operand 158 states. [2019-05-23 11:32:12,781 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 158 states to 158 states and 172 transitions. [2019-05-23 11:32:12,781 INFO L146 ILogger]: Start accepts. Automaton has 158 states and 172 transitions. Word has length 82 [2019-05-23 11:32:12,782 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:12,782 INFO L146 ILogger]: Abstraction has 158 states and 172 transitions. [2019-05-23 11:32:12,782 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:32:12,782 INFO L146 ILogger]: Start isEmpty. Operand 158 states and 172 transitions. [2019-05-23 11:32:12,786 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 131 [2019-05-23 11:32:12,786 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:12,787 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2019-05-23 11:32:12,787 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:12,787 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:12,787 INFO L146 ILogger]: Analyzing trace with hash -1770814901, now seen corresponding path program 4 times [2019-05-23 11:32:12,788 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:12,788 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:12,789 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:12,792 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:32:12,792 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:12,798 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:12,799 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:12,799 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:12,822 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:32:12,859 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:32:12,859 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:12,860 INFO L146 ILogger]: Trace formula consists of 197 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:32:12,863 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:13,242 INFO L146 ILogger]: Checked inductivity of 204 backedges. 69 proven. 12 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2019-05-23 11:32:13,269 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:13,269 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-05-23 11:32:13,270 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:32:13,270 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:32:13,270 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:32:13,271 INFO L146 ILogger]: Start difference. First operand 158 states and 172 transitions. Second operand 8 states. [2019-05-23 11:32:13,862 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:13,862 INFO L146 ILogger]: Finished difference Result 506 states and 549 transitions. [2019-05-23 11:32:13,862 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:32:13,863 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 130 [2019-05-23 11:32:13,863 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:13,865 INFO L146 ILogger]: With dead ends: 506 [2019-05-23 11:32:13,865 INFO L146 ILogger]: Without dead ends: 384 [2019-05-23 11:32:13,866 INFO L146 ILogger]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:32:13,866 INFO L146 ILogger]: Start minimizeSevpa. Operand 384 states. [2019-05-23 11:32:13,884 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 384 to 268. [2019-05-23 11:32:13,884 INFO L146 ILogger]: Start removeUnreachable. Operand 268 states. [2019-05-23 11:32:13,886 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2019-05-23 11:32:13,886 INFO L146 ILogger]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 130 [2019-05-23 11:32:13,886 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:13,886 INFO L146 ILogger]: Abstraction has 268 states and 290 transitions. [2019-05-23 11:32:13,886 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:32:13,886 INFO L146 ILogger]: Start isEmpty. Operand 268 states and 290 transitions. [2019-05-23 11:32:13,890 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 207 [2019-05-23 11:32:13,890 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:13,890 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2019-05-23 11:32:13,890 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:13,891 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:13,891 INFO L146 ILogger]: Analyzing trace with hash 1464797415, now seen corresponding path program 5 times [2019-05-23 11:32:13,891 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:13,891 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:13,892 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:13,892 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:32:13,892 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:13,899 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:13,899 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:13,899 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:32:13,917 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1