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/init-non-constant-2-n-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:31:20,102 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:31:20,104 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:31:20,117 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:31:20,118 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:31:20,119 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:31:20,120 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:31:20,122 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:31:20,123 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:31:20,124 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:31:20,126 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:31:20,126 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:31:20,128 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:31:20,129 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:31:20,132 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:31:20,134 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:31:20,134 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:31:20,139 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:31:20,141 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:31:20,147 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:31:20,148 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:31:20,151 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:31:20,154 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:31:20,156 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:31:20,156 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:31:20,157 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:31:20,158 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:31:20,159 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:31:20,159 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:31:20,160 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:31:20,161 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:31:20,162 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:31:20,165 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:31:20,165 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:31:20,166 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:31:20,166 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:31:20,166 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:31:20,168 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:31:20,169 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:31:20,169 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:31:20,195 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:31:20,196 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:31:20,197 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:31:20,197 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:31:20,197 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:31:20,197 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:31:20,197 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:31:20,198 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:31:20,198 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:31:20,198 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:31:20,199 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:31:20,199 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:31:20,199 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:31:20,199 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:31:20,199 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:31:20,200 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:31:20,201 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:31:20,201 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:31:20,201 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:31:20,201 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:31:20,201 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:31:20,202 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:31:20,202 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:31:20,202 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:31:20,202 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:31:20,202 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:31:20,203 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:31:20,203 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:31:20,204 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 11:31:20,239 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:31:20,251 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:31:20,254 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:31:20,255 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:31:20,256 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:31:20,256 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i [2019-05-23 11:31:20,308 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c3b0765b/cad3b5a0342b448986b3dfc3a0afa6b7/FLAG64284982e [2019-05-23 11:31:20,717 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:31:20,718 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i [2019-05-23 11:31:20,723 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c3b0765b/cad3b5a0342b448986b3dfc3a0afa6b7/FLAG64284982e [2019-05-23 11:31:21,101 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c3b0765b/cad3b5a0342b448986b3dfc3a0afa6b7 [2019-05-23 11:31:21,110 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:31:21,112 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:31:21,113 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:21,113 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:31:21,116 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:31:21,117 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,120 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b8df23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21, skipping insertion in model container [2019-05-23 11:31:21,120 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,127 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:31:21,145 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:31:21,303 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:21,307 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:31:21,340 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:21,364 INFO L146 ILogger]: Completed translation [2019-05-23 11:31:21,364 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21 WrapperNode [2019-05-23 11:31:21,364 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:21,365 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:21,366 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:31:21,366 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:31:21,378 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,386 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,412 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:21,412 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:31:21,412 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:31:21,413 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:31:21,425 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,426 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,428 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,428 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,436 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,442 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,443 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (1/1) ... [2019-05-23 11:31:21,445 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:31:21,446 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:31:21,446 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:31:21,446 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:31:21,447 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (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 11:31:21,597 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:31:21,597 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:31:21,597 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:31:21,598 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:31:21,598 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:31:21,598 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:31:22,042 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:31:22,042 INFO L146 ILogger]: Removed 10 assume(true) statements. [2019-05-23 11:31:22,044 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:22 BoogieIcfgContainer [2019-05-23 11:31:22,044 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:31:22,045 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:31:22,045 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:31:22,048 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:31:22,048 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:31:21" (1/3) ... [2019-05-23 11:31:22,049 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c609a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:22, skipping insertion in model container [2019-05-23 11:31:22,049 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:21" (2/3) ... [2019-05-23 11:31:22,049 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c609a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:22, skipping insertion in model container [2019-05-23 11:31:22,049 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:22" (3/3) ... [2019-05-23 11:31:22,051 INFO L146 ILogger]: Analyzing ICFG init-non-constant-2-n-u_true-unreach-call.i [2019-05-23 11:31:22,058 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:31:22,066 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:31:22,082 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:31:22,111 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:31:22,112 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:31:22,112 INFO L146 ILogger]: Hoare is true [2019-05-23 11:31:22,112 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:31:22,112 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:31:22,112 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:31:22,112 INFO L146 ILogger]: Difference is false [2019-05-23 11:31:22,113 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:31:22,113 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:31:22,128 INFO L146 ILogger]: Start isEmpty. Operand 50 states. [2019-05-23 11:31:22,136 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 36 [2019-05-23 11:31:22,136 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:22,137 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] [2019-05-23 11:31:22,139 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:22,144 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:22,144 INFO L146 ILogger]: Analyzing trace with hash -995854141, now seen corresponding path program 1 times [2019-05-23 11:31:22,146 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:22,147 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:22,188 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:22,188 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:22,188 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:22,225 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:22,225 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:22,225 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 11:31:22,241 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:22,285 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:22,290 INFO L146 ILogger]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2019-05-23 11:31:22,296 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:22,319 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 11:31:22,344 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:22,344 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:31:22,348 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:31:22,359 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:31:22,360 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:31:22,362 INFO L146 ILogger]: Start difference. First operand 50 states. Second operand 2 states. [2019-05-23 11:31:22,377 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:22,377 INFO L146 ILogger]: Finished difference Result 77 states and 93 transitions. [2019-05-23 11:31:22,378 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:31:22,379 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 35 [2019-05-23 11:31:22,379 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:22,389 INFO L146 ILogger]: With dead ends: 77 [2019-05-23 11:31:22,389 INFO L146 ILogger]: Without dead ends: 44 [2019-05-23 11:31:22,393 INFO L146 ILogger]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:31:22,410 INFO L146 ILogger]: Start minimizeSevpa. Operand 44 states. [2019-05-23 11:31:22,425 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-05-23 11:31:22,427 INFO L146 ILogger]: Start removeUnreachable. Operand 44 states. [2019-05-23 11:31:22,428 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2019-05-23 11:31:22,429 INFO L146 ILogger]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 35 [2019-05-23 11:31:22,430 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:22,430 INFO L146 ILogger]: Abstraction has 44 states and 47 transitions. [2019-05-23 11:31:22,430 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:31:22,430 INFO L146 ILogger]: Start isEmpty. Operand 44 states and 47 transitions. [2019-05-23 11:31:22,431 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 36 [2019-05-23 11:31:22,432 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:22,432 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] [2019-05-23 11:31:22,432 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:22,433 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:22,433 INFO L146 ILogger]: Analyzing trace with hash 717458775, now seen corresponding path program 1 times [2019-05-23 11:31:22,433 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:22,433 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:22,434 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:22,434 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:22,435 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:22,441 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:22,441 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:22,444 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 11:31:22,460 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:22,482 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:22,483 INFO L146 ILogger]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:22,485 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:22,585 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 11:31:22,605 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:22,606 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:31:22,607 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:22,608 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:22,608 INFO L146 ILogger]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:22,608 INFO L146 ILogger]: Start difference. First operand 44 states and 47 transitions. Second operand 5 states. [2019-05-23 11:31:22,949 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:22,949 INFO L146 ILogger]: Finished difference Result 79 states and 86 transitions. [2019-05-23 11:31:22,950 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:22,951 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 35 [2019-05-23 11:31:22,951 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:22,953 INFO L146 ILogger]: With dead ends: 79 [2019-05-23 11:31:22,953 INFO L146 ILogger]: Without dead ends: 63 [2019-05-23 11:31:22,954 INFO L146 ILogger]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:22,955 INFO L146 ILogger]: Start minimizeSevpa. Operand 63 states. [2019-05-23 11:31:22,961 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 63 to 45. [2019-05-23 11:31:22,961 INFO L146 ILogger]: Start removeUnreachable. Operand 45 states. [2019-05-23 11:31:22,962 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2019-05-23 11:31:22,962 INFO L146 ILogger]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 35 [2019-05-23 11:31:22,965 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:22,965 INFO L146 ILogger]: Abstraction has 45 states and 48 transitions. [2019-05-23 11:31:22,965 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:22,965 INFO L146 ILogger]: Start isEmpty. Operand 45 states and 48 transitions. [2019-05-23 11:31:22,967 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 40 [2019-05-23 11:31:22,967 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:22,967 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] [2019-05-23 11:31:22,969 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:22,969 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:22,970 INFO L146 ILogger]: Analyzing trace with hash 135427872, now seen corresponding path program 1 times [2019-05-23 11:31:22,970 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:22,970 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:22,972 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:22,972 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:22,972 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:22,978 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:22,978 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:22,978 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 11:31:22,996 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:23,025 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:23,026 INFO L146 ILogger]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:23,028 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:23,131 INFO L146 ILogger]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:23,149 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:23,149 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:31:23,149 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:23,150 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:23,150 INFO L146 ILogger]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:23,151 INFO L146 ILogger]: Start difference. First operand 45 states and 48 transitions. Second operand 5 states. [2019-05-23 11:31:23,347 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:23,347 INFO L146 ILogger]: Finished difference Result 100 states and 112 transitions. [2019-05-23 11:31:23,349 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:23,349 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 39 [2019-05-23 11:31:23,350 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:23,351 INFO L146 ILogger]: With dead ends: 100 [2019-05-23 11:31:23,351 INFO L146 ILogger]: Without dead ends: 61 [2019-05-23 11:31:23,351 INFO L146 ILogger]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:23,352 INFO L146 ILogger]: Start minimizeSevpa. Operand 61 states. [2019-05-23 11:31:23,356 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 61 to 47. [2019-05-23 11:31:23,357 INFO L146 ILogger]: Start removeUnreachable. Operand 47 states. [2019-05-23 11:31:23,358 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2019-05-23 11:31:23,358 INFO L146 ILogger]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 39 [2019-05-23 11:31:23,358 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:23,358 INFO L146 ILogger]: Abstraction has 47 states and 50 transitions. [2019-05-23 11:31:23,358 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:23,359 INFO L146 ILogger]: Start isEmpty. Operand 47 states and 50 transitions. [2019-05-23 11:31:23,360 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:31:23,360 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:23,360 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:23,361 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:23,361 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:23,361 INFO L146 ILogger]: Analyzing trace with hash 1244111059, now seen corresponding path program 1 times [2019-05-23 11:31:23,361 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:23,361 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:23,362 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:23,362 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:23,363 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:23,367 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:23,367 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:23,368 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:31:23,382 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:23,405 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:23,406 INFO L146 ILogger]: Trace formula consists of 73 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:31:23,409 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:23,484 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-05-23 11:31:23,485 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:23,489 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:23,489 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:23,489 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-05-23 11:31:23,601 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:23,602 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2019-05-23 11:31:23,603 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-05-23 11:31:23,683 INFO L146 ILogger]: treesize reduction 15, result has 40.0 percent of original size [2019-05-23 11:31:23,684 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:23,684 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:10 [2019-05-23 11:31:23,948 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:23,971 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:23,972 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2019-05-23 11:31:23,972 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:31:23,972 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:31:23,973 INFO L146 ILogger]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:31:23,973 INFO L146 ILogger]: Start difference. First operand 47 states and 50 transitions. Second operand 10 states. [2019-05-23 11:31:24,432 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:24,432 INFO L146 ILogger]: Finished difference Result 132 states and 141 transitions. [2019-05-23 11:31:24,440 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:31:24,441 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 42 [2019-05-23 11:31:24,441 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:24,442 INFO L146 ILogger]: With dead ends: 132 [2019-05-23 11:31:24,442 INFO L146 ILogger]: Without dead ends: 130 [2019-05-23 11:31:24,443 INFO L146 ILogger]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2019-05-23 11:31:24,444 INFO L146 ILogger]: Start minimizeSevpa. Operand 130 states. [2019-05-23 11:31:24,450 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 130 to 64. [2019-05-23 11:31:24,450 INFO L146 ILogger]: Start removeUnreachable. Operand 64 states. [2019-05-23 11:31:24,451 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2019-05-23 11:31:24,451 INFO L146 ILogger]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 42 [2019-05-23 11:31:24,452 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:24,452 INFO L146 ILogger]: Abstraction has 64 states and 69 transitions. [2019-05-23 11:31:24,452 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:31:24,452 INFO L146 ILogger]: Start isEmpty. Operand 64 states and 69 transitions. [2019-05-23 11:31:24,453 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 50 [2019-05-23 11:31:24,453 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:24,454 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] [2019-05-23 11:31:24,454 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:24,454 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:24,455 INFO L146 ILogger]: Analyzing trace with hash -643175977, now seen corresponding path program 2 times [2019-05-23 11:31:24,455 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:24,455 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:24,456 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,456 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:24,456 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,460 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:24,461 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:24,461 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 11:31:24,476 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:24,496 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:31:24,497 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:24,498 INFO L146 ILogger]: Trace formula consists of 83 conjuncts, 27 conjunts are in the unsatisfiable core [2019-05-23 11:31:24,501 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:24,588 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2019-05-23 11:31:24,589 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:24,598 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:24,599 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:24,599 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-05-23 11:31:24,733 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:24,734 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2019-05-23 11:31:24,734 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:24,767 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:24,769 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-05-23 11:31:24,769 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:40 [2019-05-23 11:31:25,005 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:31:25,010 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:25,012 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:25,013 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 16 [2019-05-23 11:31:25,014 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:25,027 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:25,028 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:25,028 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:49, output treesize:10 [2019-05-23 11:31:25,119 INFO L146 ILogger]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:25,143 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:25,143 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:31:25,143 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:31:25,143 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:31:25,144 INFO L146 ILogger]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:31:25,144 INFO L146 ILogger]: Start difference. First operand 64 states and 69 transitions. Second operand 15 states. [2019-05-23 11:31:26,690 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:26,690 INFO L146 ILogger]: Finished difference Result 145 states and 155 transitions. [2019-05-23 11:31:26,690 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-05-23 11:31:26,690 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 49 [2019-05-23 11:31:26,691 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:26,692 INFO L146 ILogger]: With dead ends: 145 [2019-05-23 11:31:26,692 INFO L146 ILogger]: Without dead ends: 143 [2019-05-23 11:31:26,693 INFO L146 ILogger]: 0 DeclaredPredicates, 69 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 11:31:26,694 INFO L146 ILogger]: Start minimizeSevpa. Operand 143 states. [2019-05-23 11:31:26,701 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 143 to 55. [2019-05-23 11:31:26,701 INFO L146 ILogger]: Start removeUnreachable. Operand 55 states. [2019-05-23 11:31:26,702 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2019-05-23 11:31:26,702 INFO L146 ILogger]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2019-05-23 11:31:26,702 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:26,703 INFO L146 ILogger]: Abstraction has 55 states and 58 transitions. [2019-05-23 11:31:26,703 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:31:26,703 INFO L146 ILogger]: Start isEmpty. Operand 55 states and 58 transitions. [2019-05-23 11:31:26,704 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 51 [2019-05-23 11:31:26,704 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:26,704 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:31:26,704 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:26,705 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:26,705 INFO L146 ILogger]: Analyzing trace with hash -2098670584, now seen corresponding path program 1 times [2019-05-23 11:31:26,705 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:26,705 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:26,706 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:26,706 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:26,706 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:26,710 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:26,710 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:26,710 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 11:31:26,724 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:26,737 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:26,738 INFO L146 ILogger]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:31:26,740 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:26,790 INFO L146 ILogger]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:26,808 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:26,808 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:31:26,809 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:31:26,809 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:31:26,809 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:26,810 INFO L146 ILogger]: Start difference. First operand 55 states and 58 transitions. Second operand 7 states. [2019-05-23 11:31:27,004 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:27,004 INFO L146 ILogger]: Finished difference Result 150 states and 162 transitions. [2019-05-23 11:31:27,006 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:31:27,006 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 50 [2019-05-23 11:31:27,007 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:27,008 INFO L146 ILogger]: With dead ends: 150 [2019-05-23 11:31:27,008 INFO L146 ILogger]: Without dead ends: 119 [2019-05-23 11:31:27,009 INFO L146 ILogger]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:31:27,010 INFO L146 ILogger]: Start minimizeSevpa. Operand 119 states. [2019-05-23 11:31:27,023 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 119 to 95. [2019-05-23 11:31:27,024 INFO L146 ILogger]: Start removeUnreachable. Operand 95 states. [2019-05-23 11:31:27,025 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2019-05-23 11:31:27,025 INFO L146 ILogger]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 50 [2019-05-23 11:31:27,025 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:27,026 INFO L146 ILogger]: Abstraction has 95 states and 103 transitions. [2019-05-23 11:31:27,026 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:31:27,026 INFO L146 ILogger]: Start isEmpty. Operand 95 states and 103 transitions. [2019-05-23 11:31:27,027 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 54 [2019-05-23 11:31:27,035 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:27,035 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:31:27,035 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:27,036 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:27,036 INFO L146 ILogger]: Analyzing trace with hash 1718004853, now seen corresponding path program 2 times [2019-05-23 11:31:27,036 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:27,036 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:27,037 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:27,037 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:27,037 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:27,047 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:27,047 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:27,047 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 11:31:27,059 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:27,079 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:31:27,079 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:27,080 INFO L146 ILogger]: Trace formula consists of 89 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:31:27,083 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:27,280 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-05-23 11:31:27,280 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:27,284 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:27,284 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:27,285 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-05-23 11:31:27,369 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:27,369 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2019-05-23 11:31:27,370 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-05-23 11:31:27,384 INFO L146 ILogger]: treesize reduction 17, result has 41.4 percent of original size [2019-05-23 11:31:27,385 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:27,385 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:12 [2019-05-23 11:31:27,445 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:27,464 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:27,464 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2019-05-23 11:31:27,465 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:31:27,465 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:31:27,465 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:31:27,465 INFO L146 ILogger]: Start difference. First operand 95 states and 103 transitions. Second operand 12 states. [2019-05-23 11:31:28,112 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:28,112 INFO L146 ILogger]: Finished difference Result 217 states and 237 transitions. [2019-05-23 11:31:28,115 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-05-23 11:31:28,115 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 53 [2019-05-23 11:31:28,115 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:28,117 INFO L146 ILogger]: With dead ends: 217 [2019-05-23 11:31:28,117 INFO L146 ILogger]: Without dead ends: 215 [2019-05-23 11:31:28,118 INFO L146 ILogger]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:31:28,119 INFO L146 ILogger]: Start minimizeSevpa. Operand 215 states. [2019-05-23 11:31:28,142 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 215 to 123. [2019-05-23 11:31:28,142 INFO L146 ILogger]: Start removeUnreachable. Operand 123 states. [2019-05-23 11:31:28,143 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 123 states to 123 states and 135 transitions. [2019-05-23 11:31:28,143 INFO L146 ILogger]: Start accepts. Automaton has 123 states and 135 transitions. Word has length 53 [2019-05-23 11:31:28,143 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:28,144 INFO L146 ILogger]: Abstraction has 123 states and 135 transitions. [2019-05-23 11:31:28,148 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:31:28,148 INFO L146 ILogger]: Start isEmpty. Operand 123 states and 135 transitions. [2019-05-23 11:31:28,149 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 55 [2019-05-23 11:31:28,149 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:28,149 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] [2019-05-23 11:31:28,150 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:28,150 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:28,150 INFO L146 ILogger]: Analyzing trace with hash -1029645551, now seen corresponding path program 1 times [2019-05-23 11:31:28,150 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:28,150 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:28,156 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:28,156 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:28,157 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:28,160 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:28,160 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:28,161 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 11:31:28,172 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:28,185 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:28,186 INFO L146 ILogger]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:31:28,188 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:28,260 INFO L146 ILogger]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:31:28,278 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:28,278 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:31:28,278 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:31:28,279 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:31:28,279 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:28,279 INFO L146 ILogger]: Start difference. First operand 123 states and 135 transitions. Second operand 7 states. [2019-05-23 11:31:28,569 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:28,570 INFO L146 ILogger]: Finished difference Result 253 states and 279 transitions. [2019-05-23 11:31:28,577 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:31:28,577 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 54 [2019-05-23 11:31:28,578 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:28,579 INFO L146 ILogger]: With dead ends: 253 [2019-05-23 11:31:28,579 INFO L146 ILogger]: Without dead ends: 202 [2019-05-23 11:31:28,580 INFO L146 ILogger]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:31:28,580 INFO L146 ILogger]: Start minimizeSevpa. Operand 202 states. [2019-05-23 11:31:28,593 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 202 to 133. [2019-05-23 11:31:28,594 INFO L146 ILogger]: Start removeUnreachable. Operand 133 states. [2019-05-23 11:31:28,594 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2019-05-23 11:31:28,595 INFO L146 ILogger]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 54 [2019-05-23 11:31:28,595 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:28,595 INFO L146 ILogger]: Abstraction has 133 states and 145 transitions. [2019-05-23 11:31:28,595 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:31:28,595 INFO L146 ILogger]: Start isEmpty. Operand 133 states and 145 transitions. [2019-05-23 11:31:28,597 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:31:28,597 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:28,597 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:31:28,597 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:28,597 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:28,598 INFO L146 ILogger]: Analyzing trace with hash 906608149, now seen corresponding path program 2 times [2019-05-23 11:31:28,598 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:28,598 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:28,599 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:28,599 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:28,599 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:28,602 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:28,602 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:28,602 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:28,631 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:28,651 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:31:28,651 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:28,652 INFO L146 ILogger]: Trace formula consists of 101 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:31:28,655 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:29,172 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2019-05-23 11:31:29,173 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:29,249 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:29,249 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:29,250 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2019-05-23 11:31:29,727 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:29,728 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2019-05-23 11:31:29,728 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-05-23 11:31:29,741 INFO L146 ILogger]: treesize reduction 14, result has 46.2 percent of original size [2019-05-23 11:31:29,741 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:29,742 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:12 [2019-05-23 11:31:29,813 INFO L146 ILogger]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:31:29,831 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:29,831 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:31:29,831 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:31:29,832 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:31:29,832 INFO L146 ILogger]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:31:29,832 INFO L146 ILogger]: Start difference. First operand 133 states and 145 transitions. Second operand 13 states. [2019-05-23 11:31:30,456 WARN L146 ILogger]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2019-05-23 11:31:30,781 WARN L146 ILogger]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-05-23 11:31:31,291 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:31,292 INFO L146 ILogger]: Finished difference Result 327 states and 357 transitions. [2019-05-23 11:31:31,292 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:31:31,292 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 61 [2019-05-23 11:31:31,292 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:31,294 INFO L146 ILogger]: With dead ends: 327 [2019-05-23 11:31:31,294 INFO L146 ILogger]: Without dead ends: 325 [2019-05-23 11:31:31,294 INFO L146 ILogger]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:31:31,295 INFO L146 ILogger]: Start minimizeSevpa. Operand 325 states. [2019-05-23 11:31:31,313 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 325 to 186. [2019-05-23 11:31:31,313 INFO L146 ILogger]: Start removeUnreachable. Operand 186 states. [2019-05-23 11:31:31,314 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 186 states to 186 states and 205 transitions. [2019-05-23 11:31:31,314 INFO L146 ILogger]: Start accepts. Automaton has 186 states and 205 transitions. Word has length 61 [2019-05-23 11:31:31,314 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:31,314 INFO L146 ILogger]: Abstraction has 186 states and 205 transitions. [2019-05-23 11:31:31,315 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:31:31,315 INFO L146 ILogger]: Start isEmpty. Operand 186 states and 205 transitions. [2019-05-23 11:31:31,316 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:31:31,316 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:31,316 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 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 11:31:31,317 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:31,317 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:31,317 INFO L146 ILogger]: Analyzing trace with hash -1271194198, now seen corresponding path program 3 times [2019-05-23 11:31:31,317 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:31,317 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:31,318 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:31,318 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:31,318 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:31,322 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:31,322 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:31,322 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:31,338 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:31:31,360 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:31:31,361 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:31,361 INFO L146 ILogger]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:31:31,363 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:31,534 INFO L146 ILogger]: Checked inductivity of 26 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:31,560 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:31,560 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:31:31,561 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:31:31,561 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:31:31,561 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:31:31,561 INFO L146 ILogger]: Start difference. First operand 186 states and 205 transitions. Second operand 9 states. [2019-05-23 11:31:32,173 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:32,173 INFO L146 ILogger]: Finished difference Result 489 states and 545 transitions. [2019-05-23 11:31:32,178 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-05-23 11:31:32,178 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 61 [2019-05-23 11:31:32,178 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:32,180 INFO L146 ILogger]: With dead ends: 489 [2019-05-23 11:31:32,180 INFO L146 ILogger]: Without dead ends: 361 [2019-05-23 11:31:32,181 INFO L146 ILogger]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:31:32,183 INFO L146 ILogger]: Start minimizeSevpa. Operand 361 states. [2019-05-23 11:31:32,212 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 361 to 285. [2019-05-23 11:31:32,212 INFO L146 ILogger]: Start removeUnreachable. Operand 285 states. [2019-05-23 11:31:32,213 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 285 states to 285 states and 320 transitions. [2019-05-23 11:31:32,214 INFO L146 ILogger]: Start accepts. Automaton has 285 states and 320 transitions. Word has length 61 [2019-05-23 11:31:32,214 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:32,214 INFO L146 ILogger]: Abstraction has 285 states and 320 transitions. [2019-05-23 11:31:32,214 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:31:32,214 INFO L146 ILogger]: Start isEmpty. Operand 285 states and 320 transitions. [2019-05-23 11:31:32,216 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 64 [2019-05-23 11:31:32,216 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:32,216 INFO L146 ILogger]: trace histogram [4, 4, 4, 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] [2019-05-23 11:31:32,217 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:32,217 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:32,217 INFO L146 ILogger]: Analyzing trace with hash 216350, now seen corresponding path program 4 times [2019-05-23 11:31:32,217 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:32,217 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:32,219 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:32,219 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:32,219 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:32,224 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:32,225 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:32,225 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:32,236 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:31:32,262 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:31:32,263 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:32,264 INFO L146 ILogger]: Trace formula consists of 103 conjuncts, 35 conjunts are in the unsatisfiable core [2019-05-23 11:31:32,270 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:32,381 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2019-05-23 11:31:32,381 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:32,390 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:32,390 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:32,390 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-05-23 11:31:32,443 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:32,445 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2019-05-23 11:31:32,445 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:32,457 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:32,457 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:32,457 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:44 [2019-05-23 11:31:32,510 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:32,511 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:32,512 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:32,513 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:32,513 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 48 [2019-05-23 11:31:32,514 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:32,527 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:32,528 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:31:32,529 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:51 [2019-05-23 11:31:32,773 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:32,774 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:32,776 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:31:32,776 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:31:32,780 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:32,780 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 23 [2019-05-23 11:31:32,781 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:32,796 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:32,796 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:32,797 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:55, output treesize:12 [2019-05-23 11:31:32,857 INFO L146 ILogger]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:32,875 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:32,876 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-05-23 11:31:32,876 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:31:32,876 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:31:32,876 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:31:32,877 INFO L146 ILogger]: Start difference. First operand 285 states and 320 transitions. Second operand 19 states. [2019-05-23 11:31:46,566 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:46,566 INFO L146 ILogger]: Finished difference Result 480 states and 532 transitions. [2019-05-23 11:31:46,566 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:31:46,567 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 63 [2019-05-23 11:31:46,567 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:46,570 INFO L146 ILogger]: With dead ends: 480 [2019-05-23 11:31:46,570 INFO L146 ILogger]: Without dead ends: 478 [2019-05-23 11:31:46,571 INFO L146 ILogger]: 0 DeclaredPredicates, 82 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:31:46,572 INFO L146 ILogger]: Start minimizeSevpa. Operand 478 states. [2019-05-23 11:31:46,601 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 478 to 285. [2019-05-23 11:31:46,601 INFO L146 ILogger]: Start removeUnreachable. Operand 285 states. [2019-05-23 11:31:46,602 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 285 states to 285 states and 318 transitions. [2019-05-23 11:31:46,602 INFO L146 ILogger]: Start accepts. Automaton has 285 states and 318 transitions. Word has length 63 [2019-05-23 11:31:46,602 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:46,603 INFO L146 ILogger]: Abstraction has 285 states and 318 transitions. [2019-05-23 11:31:46,603 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:31:46,603 INFO L146 ILogger]: Start isEmpty. Operand 285 states and 318 transitions. [2019-05-23 11:31:46,604 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 65 [2019-05-23 11:31:46,604 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:46,604 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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 11:31:46,604 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:46,604 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:46,605 INFO L146 ILogger]: Analyzing trace with hash -624316643, now seen corresponding path program 5 times [2019-05-23 11:31:46,605 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:46,605 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:46,606 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:46,606 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:46,606 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:46,609 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:46,609 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:46,609 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:46,620 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:31:46,650 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2019-05-23 11:31:46,651 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:46,652 INFO L146 ILogger]: Trace formula consists of 105 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:31:46,653 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:46,708 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-05-23 11:31:46,709 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:46,711 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:46,711 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:46,712 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-05-23 11:31:46,840 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:46,841 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2019-05-23 11:31:46,842 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-05-23 11:31:46,857 INFO L146 ILogger]: treesize reduction 17, result has 41.4 percent of original size [2019-05-23 11:31:46,857 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:46,858 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:12 [2019-05-23 11:31:46,906 INFO L146 ILogger]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:46,924 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:46,925 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2019-05-23 11:31:46,925 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:31:46,925 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:31:46,925 INFO L146 ILogger]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:31:46,926 INFO L146 ILogger]: Start difference. First operand 285 states and 318 transitions. Second operand 14 states. [2019-05-23 11:31:47,427 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:47,427 INFO L146 ILogger]: Finished difference Result 385 states and 423 transitions. [2019-05-23 11:31:47,428 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-05-23 11:31:47,428 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 64 [2019-05-23 11:31:47,428 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:47,430 INFO L146 ILogger]: With dead ends: 385 [2019-05-23 11:31:47,430 INFO L146 ILogger]: Without dead ends: 383 [2019-05-23 11:31:47,431 INFO L146 ILogger]: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:31:47,431 INFO L146 ILogger]: Start minimizeSevpa. Operand 383 states. [2019-05-23 11:31:47,463 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 383 to 293. [2019-05-23 11:31:47,463 INFO L146 ILogger]: Start removeUnreachable. Operand 293 states. [2019-05-23 11:31:47,464 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 293 states to 293 states and 326 transitions. [2019-05-23 11:31:47,464 INFO L146 ILogger]: Start accepts. Automaton has 293 states and 326 transitions. Word has length 64 [2019-05-23 11:31:47,465 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:47,465 INFO L146 ILogger]: Abstraction has 293 states and 326 transitions. [2019-05-23 11:31:47,465 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:31:47,465 INFO L146 ILogger]: Start isEmpty. Operand 293 states and 326 transitions. [2019-05-23 11:31:47,466 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 69 [2019-05-23 11:31:47,466 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:47,466 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:31:47,466 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:47,467 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:47,467 INFO L146 ILogger]: Analyzing trace with hash -403689839, now seen corresponding path program 3 times [2019-05-23 11:31:47,467 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:47,467 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:47,468 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:47,468 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:47,468 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:47,471 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:47,471 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:47,471 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:47,482 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2