java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-examples/standard_copy8_false-unreach-call_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:14:16,468 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:14:16,470 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:14:16,481 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:14:16,482 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:14:16,483 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:14:16,484 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:14:16,486 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:14:16,488 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:14:16,489 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:14:16,490 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:14:16,490 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:14:16,491 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:14:16,492 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:14:16,493 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:14:16,494 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:14:16,495 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:14:16,497 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:14:16,499 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:14:16,501 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:14:16,502 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:14:16,503 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:14:16,506 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:14:16,506 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:14:16,506 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:14:16,507 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:14:16,508 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:14:16,509 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:14:16,509 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:14:16,510 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:14:16,511 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:14:16,512 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:14:16,513 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:14:16,513 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:14:16,514 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:14:16,514 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:14:16,514 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:14:16,516 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:14:16,516 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:14:16,517 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:14:16,539 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:14:16,539 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:14:16,540 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:14:16,540 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:14:16,541 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:14:16,541 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:14:16,542 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:14:16,542 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:14:16,542 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:14:16,542 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:14:16,542 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:14:16,543 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:14:16,543 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:14:16,543 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:14:16,543 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:14:16,543 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:14:16,544 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:14:16,545 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:14:16,545 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:14:16,545 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:14:16,545 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:14:16,546 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:14:16,546 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:14:16,546 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:14:16,546 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:14:16,546 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:14:16,547 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:14:16,547 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:14:16,548 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 11:14:16,599 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:14:16,611 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:14:16,615 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:14:16,616 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:14:16,617 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:14:16,618 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/standard_copy8_false-unreach-call_ground.i [2019-05-23 11:14:16,675 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6298f2b54/59baaa0cf19c4a19a374ce0779993586/FLAG5824ef7ae [2019-05-23 11:14:17,093 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:14:17,094 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/standard_copy8_false-unreach-call_ground.i [2019-05-23 11:14:17,100 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6298f2b54/59baaa0cf19c4a19a374ce0779993586/FLAG5824ef7ae [2019-05-23 11:14:17,458 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6298f2b54/59baaa0cf19c4a19a374ce0779993586 [2019-05-23 11:14:17,467 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:14:17,469 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:14:17,470 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:14:17,470 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:14:17,477 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:14:17,478 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,481 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3f4895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17, skipping insertion in model container [2019-05-23 11:14:17,481 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,488 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:14:17,512 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:14:17,745 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:14:17,751 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:14:17,802 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:14:17,835 INFO L146 ILogger]: Completed translation [2019-05-23 11:14:17,835 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17 WrapperNode [2019-05-23 11:14:17,836 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:14:17,837 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:14:17,837 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:14:17,837 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:14:17,847 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,857 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,889 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:14:17,890 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:14:17,890 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:14:17,890 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:14:17,988 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,988 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,991 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,991 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:18,000 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:18,006 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:18,008 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:18,011 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:14:18,012 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:14:18,012 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:14:18,012 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:14:18,013 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (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 11:14:18,074 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:14:18,075 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:14:18,075 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:14:18,075 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:14:18,075 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:14:18,075 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:14:18,935 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:14:18,935 INFO L146 ILogger]: Removed 16 assume(true) statements. [2019-05-23 11:14:18,937 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:14:18 BoogieIcfgContainer [2019-05-23 11:14:18,937 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:14:18,938 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:14:18,938 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:14:18,941 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:14:18,941 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:14:17" (1/3) ... [2019-05-23 11:14:18,942 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ef3dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:14:18, skipping insertion in model container [2019-05-23 11:14:18,942 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (2/3) ... [2019-05-23 11:14:18,943 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ef3dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:14:18, skipping insertion in model container [2019-05-23 11:14:18,943 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:14:18" (3/3) ... [2019-05-23 11:14:18,945 INFO L146 ILogger]: Analyzing ICFG standard_copy8_false-unreach-call_ground.i [2019-05-23 11:14:18,953 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:14:18,960 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:14:18,976 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:14:19,009 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:14:19,010 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:14:19,010 INFO L146 ILogger]: Hoare is true [2019-05-23 11:14:19,010 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:14:19,011 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:14:19,011 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:14:19,011 INFO L146 ILogger]: Difference is false [2019-05-23 11:14:19,012 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:14:19,012 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:14:19,031 INFO L146 ILogger]: Start isEmpty. Operand 128 states. [2019-05-23 11:14:19,043 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 44 [2019-05-23 11:14:19,043 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:19,044 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:19,049 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:19,055 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:19,055 INFO L146 ILogger]: Analyzing trace with hash -2020149471, now seen corresponding path program 1 times [2019-05-23 11:14:19,056 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:19,057 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:19,094 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,094 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,095 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,148 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:19,212 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 11:14:19,215 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:19,215 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:14:19,220 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:14:19,235 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:14:19,236 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:14:19,239 INFO L146 ILogger]: Start difference. First operand 128 states. Second operand 2 states. [2019-05-23 11:14:19,277 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:19,277 INFO L146 ILogger]: Finished difference Result 231 states and 269 transitions. [2019-05-23 11:14:19,277 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:14:19,279 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 43 [2019-05-23 11:14:19,279 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:19,291 INFO L146 ILogger]: With dead ends: 231 [2019-05-23 11:14:19,291 INFO L146 ILogger]: Without dead ends: 106 [2019-05-23 11:14:19,295 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:14:19,314 INFO L146 ILogger]: Start minimizeSevpa. Operand 106 states. [2019-05-23 11:14:19,339 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-05-23 11:14:19,341 INFO L146 ILogger]: Start removeUnreachable. Operand 106 states. [2019-05-23 11:14:19,346 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2019-05-23 11:14:19,348 INFO L146 ILogger]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 43 [2019-05-23 11:14:19,349 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:19,349 INFO L146 ILogger]: Abstraction has 106 states and 115 transitions. [2019-05-23 11:14:19,349 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:14:19,350 INFO L146 ILogger]: Start isEmpty. Operand 106 states and 115 transitions. [2019-05-23 11:14:19,352 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 44 [2019-05-23 11:14:19,352 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:19,352 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:19,353 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:19,353 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:19,353 INFO L146 ILogger]: Analyzing trace with hash 340137325, now seen corresponding path program 1 times [2019-05-23 11:14:19,353 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:19,354 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:19,355 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,355 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,355 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,414 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:19,555 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 11:14:19,555 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:19,556 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:14:19,557 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:14:19,559 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:14:19,559 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:14:19,559 INFO L146 ILogger]: Start difference. First operand 106 states and 115 transitions. Second operand 3 states. [2019-05-23 11:14:19,711 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:19,712 INFO L146 ILogger]: Finished difference Result 196 states and 214 transitions. [2019-05-23 11:14:19,715 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:14:19,715 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 43 [2019-05-23 11:14:19,715 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:19,716 INFO L146 ILogger]: With dead ends: 196 [2019-05-23 11:14:19,717 INFO L146 ILogger]: Without dead ends: 115 [2019-05-23 11:14:19,720 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:14:19,721 INFO L146 ILogger]: Start minimizeSevpa. Operand 115 states. [2019-05-23 11:14:19,737 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 115 to 107. [2019-05-23 11:14:19,738 INFO L146 ILogger]: Start removeUnreachable. Operand 107 states. [2019-05-23 11:14:19,739 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2019-05-23 11:14:19,740 INFO L146 ILogger]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 43 [2019-05-23 11:14:19,740 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:19,740 INFO L146 ILogger]: Abstraction has 107 states and 116 transitions. [2019-05-23 11:14:19,740 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:14:19,740 INFO L146 ILogger]: Start isEmpty. Operand 107 states and 116 transitions. [2019-05-23 11:14:19,745 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 54 [2019-05-23 11:14:19,746 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:19,746 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:19,746 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:19,747 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:19,747 INFO L146 ILogger]: Analyzing trace with hash -1348952589, now seen corresponding path program 1 times [2019-05-23 11:14:19,747 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:19,747 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:19,748 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,748 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,748 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,774 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:19,915 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:14:19,915 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:19,916 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:19,934 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,978 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:19,979 INFO L146 ILogger]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:14:19,986 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:20,043 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:14:20,069 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:14:20,069 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:14:20,070 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:14:20,070 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:14:20,071 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:14:20,071 INFO L146 ILogger]: Start difference. First operand 107 states and 116 transitions. Second operand 6 states. [2019-05-23 11:14:20,929 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:20,929 INFO L146 ILogger]: Finished difference Result 254 states and 280 transitions. [2019-05-23 11:14:20,930 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:14:20,930 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 53 [2019-05-23 11:14:20,930 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:20,932 INFO L146 ILogger]: With dead ends: 254 [2019-05-23 11:14:20,932 INFO L146 ILogger]: Without dead ends: 173 [2019-05-23 11:14:20,933 INFO L146 ILogger]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:14:20,934 INFO L146 ILogger]: Start minimizeSevpa. Operand 173 states. [2019-05-23 11:14:20,942 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 173 to 125. [2019-05-23 11:14:20,942 INFO L146 ILogger]: Start removeUnreachable. Operand 125 states. [2019-05-23 11:14:20,943 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 125 states to 125 states and 134 transitions. [2019-05-23 11:14:20,943 INFO L146 ILogger]: Start accepts. Automaton has 125 states and 134 transitions. Word has length 53 [2019-05-23 11:14:20,944 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:20,944 INFO L146 ILogger]: Abstraction has 125 states and 134 transitions. [2019-05-23 11:14:20,944 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:14:20,944 INFO L146 ILogger]: Start isEmpty. Operand 125 states and 134 transitions. [2019-05-23 11:14:20,946 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 120 [2019-05-23 11:14:20,946 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:20,947 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:20,947 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:20,947 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:20,947 INFO L146 ILogger]: Analyzing trace with hash 277197461, now seen corresponding path program 1 times [2019-05-23 11:14:20,947 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:20,948 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:20,949 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:20,949 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:20,949 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:20,994 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:21,180 INFO L146 ILogger]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-05-23 11:14:21,180 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:21,180 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:21,198 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:21,272 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:21,273 INFO L146 ILogger]: Trace formula consists of 234 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:14:21,279 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:21,564 INFO L146 ILogger]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:14:21,585 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:21,585 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:14:21,586 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:14:21,586 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:14:21,586 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:14:21,587 INFO L146 ILogger]: Start difference. First operand 125 states and 134 transitions. Second operand 10 states. [2019-05-23 11:14:22,507 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:22,508 INFO L146 ILogger]: Finished difference Result 279 states and 298 transitions. [2019-05-23 11:14:22,508 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:14:22,508 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 119 [2019-05-23 11:14:22,509 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:22,512 INFO L146 ILogger]: With dead ends: 279 [2019-05-23 11:14:22,512 INFO L146 ILogger]: Without dead ends: 190 [2019-05-23 11:14:22,513 INFO L146 ILogger]: 0 DeclaredPredicates, 129 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:14:22,514 INFO L146 ILogger]: Start minimizeSevpa. Operand 190 states. [2019-05-23 11:14:22,523 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 190 to 142. [2019-05-23 11:14:22,523 INFO L146 ILogger]: Start removeUnreachable. Operand 142 states. [2019-05-23 11:14:22,524 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2019-05-23 11:14:22,524 INFO L146 ILogger]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 119 [2019-05-23 11:14:22,525 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:22,525 INFO L146 ILogger]: Abstraction has 142 states and 151 transitions. [2019-05-23 11:14:22,525 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:14:22,525 INFO L146 ILogger]: Start isEmpty. Operand 142 states and 151 transitions. [2019-05-23 11:14:22,527 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 137 [2019-05-23 11:14:22,527 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:22,528 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:22,528 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:22,528 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:22,529 INFO L146 ILogger]: Analyzing trace with hash 1666563587, now seen corresponding path program 2 times [2019-05-23 11:14:22,529 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:22,529 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:22,530 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:22,530 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:22,530 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:22,555 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:22,636 INFO L146 ILogger]: Checked inductivity of 49 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:14:22,636 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:22,636 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:22,647 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:14:22,724 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:14:22,724 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:22,728 INFO L146 ILogger]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:14:22,737 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:23,095 INFO L146 ILogger]: Checked inductivity of 49 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-05-23 11:14:23,114 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:23,114 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9] total 12 [2019-05-23 11:14:23,115 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:14:23,115 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:14:23,115 INFO L146 ILogger]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:14:23,115 INFO L146 ILogger]: Start difference. First operand 142 states and 151 transitions. Second operand 12 states. [2019-05-23 11:14:23,629 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:23,629 INFO L146 ILogger]: Finished difference Result 298 states and 317 transitions. [2019-05-23 11:14:23,630 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-05-23 11:14:23,630 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 136 [2019-05-23 11:14:23,631 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:23,632 INFO L146 ILogger]: With dead ends: 298 [2019-05-23 11:14:23,632 INFO L146 ILogger]: Without dead ends: 202 [2019-05-23 11:14:23,634 INFO L146 ILogger]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:14:23,634 INFO L146 ILogger]: Start minimizeSevpa. Operand 202 states. [2019-05-23 11:14:23,644 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 202 to 159. [2019-05-23 11:14:23,644 INFO L146 ILogger]: Start removeUnreachable. Operand 159 states. [2019-05-23 11:14:23,645 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 159 states to 159 states and 168 transitions. [2019-05-23 11:14:23,645 INFO L146 ILogger]: Start accepts. Automaton has 159 states and 168 transitions. Word has length 136 [2019-05-23 11:14:23,645 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:23,645 INFO L146 ILogger]: Abstraction has 159 states and 168 transitions. [2019-05-23 11:14:23,645 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:14:23,646 INFO L146 ILogger]: Start isEmpty. Operand 159 states and 168 transitions. [2019-05-23 11:14:23,648 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 154 [2019-05-23 11:14:23,648 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:23,648 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:23,648 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:23,649 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:23,649 INFO L146 ILogger]: Analyzing trace with hash -2127171750, now seen corresponding path program 3 times [2019-05-23 11:14:23,649 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:23,649 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:23,650 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:23,650 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:23,650 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:23,674 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:23,784 INFO L146 ILogger]: Checked inductivity of 88 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-05-23 11:14:23,785 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:23,785 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:23,794 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:14:23,856 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:14:23,856 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:23,857 INFO L146 ILogger]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:14:23,862 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:23,934 INFO L146 ILogger]: Checked inductivity of 88 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-05-23 11:14:23,954 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:23,954 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-05-23 11:14:23,954 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:14:23,955 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:14:23,955 INFO L146 ILogger]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:14:23,955 INFO L146 ILogger]: Start difference. First operand 159 states and 168 transitions. Second operand 7 states. [2019-05-23 11:14:24,286 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:24,286 INFO L146 ILogger]: Finished difference Result 264 states and 280 transitions. [2019-05-23 11:14:24,286 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:14:24,287 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 153 [2019-05-23 11:14:24,287 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:24,289 INFO L146 ILogger]: With dead ends: 264 [2019-05-23 11:14:24,289 INFO L146 ILogger]: Without dead ends: 203 [2019-05-23 11:14:24,291 INFO L146 ILogger]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:14:24,292 INFO L146 ILogger]: Start minimizeSevpa. Operand 203 states. [2019-05-23 11:14:24,299 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 203 to 173. [2019-05-23 11:14:24,299 INFO L146 ILogger]: Start removeUnreachable. Operand 173 states. [2019-05-23 11:14:24,300 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 173 states to 173 states and 182 transitions. [2019-05-23 11:14:24,300 INFO L146 ILogger]: Start accepts. Automaton has 173 states and 182 transitions. Word has length 153 [2019-05-23 11:14:24,300 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:24,301 INFO L146 ILogger]: Abstraction has 173 states and 182 transitions. [2019-05-23 11:14:24,301 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:14:24,301 INFO L146 ILogger]: Start isEmpty. Operand 173 states and 182 transitions. [2019-05-23 11:14:24,303 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 168 [2019-05-23 11:14:24,303 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:24,304 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:24,304 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:24,304 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:24,305 INFO L146 ILogger]: Analyzing trace with hash -1230674982, now seen corresponding path program 4 times [2019-05-23 11:14:24,305 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:24,305 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:24,306 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:24,306 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:24,306 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:24,331 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:24,492 INFO L146 ILogger]: Checked inductivity of 104 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-05-23 11:14:24,492 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:24,493 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:24,504 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:14:24,895 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:14:24,895 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:24,898 INFO L146 ILogger]: Trace formula consists of 302 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:14:24,905 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:25,104 INFO L146 ILogger]: Checked inductivity of 104 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-05-23 11:14:25,124 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:25,124 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11] total 14 [2019-05-23 11:14:25,124 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:14:25,125 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:14:25,125 INFO L146 ILogger]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:14:25,125 INFO L146 ILogger]: Start difference. First operand 173 states and 182 transitions. Second operand 14 states. [2019-05-23 11:14:25,857 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:25,858 INFO L146 ILogger]: Finished difference Result 335 states and 354 transitions. [2019-05-23 11:14:25,858 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-05-23 11:14:25,858 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 167 [2019-05-23 11:14:25,859 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:25,860 INFO L146 ILogger]: With dead ends: 335 [2019-05-23 11:14:25,860 INFO L146 ILogger]: Without dead ends: 218 [2019-05-23 11:14:25,862 INFO L146 ILogger]: 0 DeclaredPredicates, 181 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2019-05-23 11:14:25,862 INFO L146 ILogger]: Start minimizeSevpa. Operand 218 states. [2019-05-23 11:14:25,870 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 218 to 190. [2019-05-23 11:14:25,870 INFO L146 ILogger]: Start removeUnreachable. Operand 190 states. [2019-05-23 11:14:25,871 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 190 states to 190 states and 199 transitions. [2019-05-23 11:14:25,871 INFO L146 ILogger]: Start accepts. Automaton has 190 states and 199 transitions. Word has length 167 [2019-05-23 11:14:25,872 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:25,872 INFO L146 ILogger]: Abstraction has 190 states and 199 transitions. [2019-05-23 11:14:25,872 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:14:25,872 INFO L146 ILogger]: Start isEmpty. Operand 190 states and 199 transitions. [2019-05-23 11:14:25,875 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 185 [2019-05-23 11:14:25,875 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:25,875 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:25,876 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:25,876 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:25,876 INFO L146 ILogger]: Analyzing trace with hash -207253147, now seen corresponding path program 5 times [2019-05-23 11:14:25,876 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:25,876 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:25,877 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:25,877 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:25,878 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:25,906 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:26,220 INFO L146 ILogger]: Checked inductivity of 153 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2019-05-23 11:14:26,220 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:26,221 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:26,244 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:14:38,464 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:14:38,464 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:38,477 INFO L146 ILogger]: Trace formula consists of 326 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:14:38,480 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:38,580 INFO L146 ILogger]: Checked inductivity of 153 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2019-05-23 11:14:38,586 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:38,587 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 9 [2019-05-23 11:14:38,587 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:14:38,587 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:14:38,588 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:14:38,588 INFO L146 ILogger]: Start difference. First operand 190 states and 199 transitions. Second operand 9 states. [2019-05-23 11:14:38,873 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:38,873 INFO L146 ILogger]: Finished difference Result 274 states and 288 transitions. [2019-05-23 11:14:38,874 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:14:38,874 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 184 [2019-05-23 11:14:38,875 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:38,877 INFO L146 ILogger]: With dead ends: 274 [2019-05-23 11:14:38,877 INFO L146 ILogger]: Without dead ends: 224 [2019-05-23 11:14:38,878 INFO L146 ILogger]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:14:38,879 INFO L146 ILogger]: Start minimizeSevpa. Operand 224 states. [2019-05-23 11:14:38,884 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 224 to 204. [2019-05-23 11:14:38,884 INFO L146 ILogger]: Start removeUnreachable. Operand 204 states. [2019-05-23 11:14:38,885 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 204 states to 204 states and 213 transitions. [2019-05-23 11:14:38,885 INFO L146 ILogger]: Start accepts. Automaton has 204 states and 213 transitions. Word has length 184 [2019-05-23 11:14:38,886 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:38,886 INFO L146 ILogger]: Abstraction has 204 states and 213 transitions. [2019-05-23 11:14:38,886 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:14:38,886 INFO L146 ILogger]: Start isEmpty. Operand 204 states and 213 transitions. [2019-05-23 11:14:38,888 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 199 [2019-05-23 11:14:38,888 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:38,889 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:38,889 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:38,889 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:38,889 INFO L146 ILogger]: Analyzing trace with hash 1645067013, now seen corresponding path program 6 times [2019-05-23 11:14:38,889 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:38,890 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:38,890 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:38,890 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:38,891 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:38,913 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:39,041 INFO L146 ILogger]: Checked inductivity of 176 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-05-23 11:14:39,041 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:39,042 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:39,051 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:14:39,111 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2019-05-23 11:14:39,111 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:39,112 INFO L146 ILogger]: Trace formula consists of 234 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:14:39,115 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:39,157 INFO L146 ILogger]: Checked inductivity of 176 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-05-23 11:14:39,176 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:39,176 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-05-23 11:14:39,177 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:14:39,177 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:14:39,177 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:14:39,177 INFO L146 ILogger]: Start difference. First operand 204 states and 213 transitions. Second operand 7 states. [2019-05-23 11:14:39,376 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:39,376 INFO L146 ILogger]: Finished difference Result 269 states and 281 transitions. [2019-05-23 11:14:39,376 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:14:39,377 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 198 [2019-05-23 11:14:39,378 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:39,379 INFO L146 ILogger]: With dead ends: 269 [2019-05-23 11:14:39,379 INFO L146 ILogger]: Without dead ends: 221 [2019-05-23 11:14:39,380 INFO L146 ILogger]: 0 DeclaredPredicates, 204 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:14:39,380 INFO L146 ILogger]: Start minimizeSevpa. Operand 221 states. [2019-05-23 11:14:39,385 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 221 to 211. [2019-05-23 11:14:39,385 INFO L146 ILogger]: Start removeUnreachable. Operand 211 states. [2019-05-23 11:14:39,386 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 211 states to 211 states and 220 transitions. [2019-05-23 11:14:39,386 INFO L146 ILogger]: Start accepts. Automaton has 211 states and 220 transitions. Word has length 198 [2019-05-23 11:14:39,386 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:39,387 INFO L146 ILogger]: Abstraction has 211 states and 220 transitions. [2019-05-23 11:14:39,387 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:14:39,387 INFO L146 ILogger]: Start isEmpty. Operand 211 states and 220 transitions. [2019-05-23 11:14:39,388 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 206 [2019-05-23 11:14:39,388 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:39,388 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:39,388 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:39,389 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:39,389 INFO L146 ILogger]: Analyzing trace with hash 522037010, now seen corresponding path program 7 times [2019-05-23 11:14:39,389 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:39,389 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:39,390 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:39,390 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:39,390 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:39,411 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:39,669 INFO L146 ILogger]: Checked inductivity of 184 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2019-05-23 11:14:39,670 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:39,670 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:39,696 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:39,769 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:39,772 INFO L146 ILogger]: Trace formula consists of 356 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:14:39,776 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:40,336 INFO L146 ILogger]: Checked inductivity of 184 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-05-23 11:14:40,355 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:40,355 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13] total 16 [2019-05-23 11:14:40,356 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:14:40,356 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:14:40,357 INFO L146 ILogger]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:14:40,357 INFO L146 ILogger]: Start difference. First operand 211 states and 220 transitions. Second operand 16 states. [2019-05-23 11:14:41,051 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:41,052 INFO L146 ILogger]: Finished difference Result 386 states and 405 transitions. [2019-05-23 11:14:41,052 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:14:41,052 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 205 [2019-05-23 11:14:41,053 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:41,054 INFO L146 ILogger]: With dead ends: 386 [2019-05-23 11:14:41,054 INFO L146 ILogger]: Without dead ends: 241 [2019-05-23 11:14:41,056 INFO L146 ILogger]: 0 DeclaredPredicates, 221 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:14:41,056 INFO L146 ILogger]: Start minimizeSevpa. Operand 241 states. [2019-05-23 11:14:41,062 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 241 to 228. [2019-05-23 11:14:41,062 INFO L146 ILogger]: Start removeUnreachable. Operand 228 states. [2019-05-23 11:14:41,063 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 228 states to 228 states and 237 transitions. [2019-05-23 11:14:41,063 INFO L146 ILogger]: Start accepts. Automaton has 228 states and 237 transitions. Word has length 205 [2019-05-23 11:14:41,063 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:41,064 INFO L146 ILogger]: Abstraction has 228 states and 237 transitions. [2019-05-23 11:14:41,064 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:14:41,064 INFO L146 ILogger]: Start isEmpty. Operand 228 states and 237 transitions. [2019-05-23 11:14:41,065 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 223 [2019-05-23 11:14:41,065 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:41,065 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:41,066 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:41,066 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:41,066 INFO L146 ILogger]: Analyzing trace with hash -2055303041, now seen corresponding path program 8 times [2019-05-23 11:14:41,066 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:41,066 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:41,067 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:41,067 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:41,067 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:41,095 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:41,388 INFO L146 ILogger]: Checked inductivity of 243 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-05-23 11:14:41,389 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:41,389 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:41,398 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:14:41,468 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:14:41,468 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:41,470 INFO L146 ILogger]: Trace formula consists of 380 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:14:41,473 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:41,565 INFO L146 ILogger]: Checked inductivity of 243 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-05-23 11:14:41,595 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:41,595 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2019-05-23 11:14:41,596 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:14:41,596 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:14:41,596 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:14:41,597 INFO L146 ILogger]: Start difference. First operand 228 states and 237 transitions. Second operand 17 states. [2019-05-23 11:14:41,928 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:41,929 INFO L146 ILogger]: Finished difference Result 398 states and 416 transitions. [2019-05-23 11:14:41,930 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:14:41,930 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 222 [2019-05-23 11:14:41,930 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:41,932 INFO L146 ILogger]: With dead ends: 398 [2019-05-23 11:14:41,932 INFO L146 ILogger]: Without dead ends: 246 [2019-05-23 11:14:41,933 INFO L146 ILogger]: 0 DeclaredPredicates, 248 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:14:41,933 INFO L146 ILogger]: Start minimizeSevpa. Operand 246 states. [2019-05-23 11:14:41,939 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 246 to 238. [2019-05-23 11:14:41,939 INFO L146 ILogger]: Start removeUnreachable. Operand 238 states. [2019-05-23 11:14:41,940 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 238 states to 238 states and 247 transitions. [2019-05-23 11:14:41,940 INFO L146 ILogger]: Start accepts. Automaton has 238 states and 247 transitions. Word has length 222 [2019-05-23 11:14:41,941 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:41,941 INFO L146 ILogger]: Abstraction has 238 states and 247 transitions. [2019-05-23 11:14:41,941 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:14:41,941 INFO L146 ILogger]: Start isEmpty. Operand 238 states and 247 transitions. [2019-05-23 11:14:41,942 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 233 [2019-05-23 11:14:41,942 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:41,942 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:41,943 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:41,943 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:41,943 INFO L146 ILogger]: Analyzing trace with hash 1840920121, now seen corresponding path program 9 times [2019-05-23 11:14:41,943 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:41,943 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:41,944 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:41,944 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:41,944 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:41,972 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:42,244 INFO L146 ILogger]: Checked inductivity of 304 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-05-23 11:14:42,244 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:42,244 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:42,254 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:14:42,327 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:14:42,327 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:42,328 INFO L146 ILogger]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:14:42,331 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:42,495 INFO L146 ILogger]: Checked inductivity of 304 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2019-05-23 11:14:42,514 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:42,514 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7] total 22 [2019-05-23 11:14:42,514 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:14:42,515 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:14:42,515 INFO L146 ILogger]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:14:42,515 INFO L146 ILogger]: Start difference. First operand 238 states and 247 transitions. Second operand 22 states. [2019-05-23 11:14:44,361 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:44,361 INFO L146 ILogger]: Finished difference Result 420 states and 439 transitions. [2019-05-23 11:14:44,362 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-05-23 11:14:44,362 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 232 [2019-05-23 11:14:44,362 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:44,363 INFO L146 ILogger]: With dead ends: 420 [2019-05-23 11:14:44,364 INFO L146 ILogger]: Without dead ends: 268 [2019-05-23 11:14:44,365 INFO L146 ILogger]: 0 DeclaredPredicates, 266 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=360, Invalid=1200, Unknown=0, NotChecked=0, Total=1560 [2019-05-23 11:14:44,365 INFO L146 ILogger]: Start minimizeSevpa. Operand 268 states. [2019-05-23 11:14:44,370 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 268 to 255. [2019-05-23 11:14:44,370 INFO L146 ILogger]: Start removeUnreachable. Operand 255 states. [2019-05-23 11:14:44,371 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 255 states to 255 states and 264 transitions. [2019-05-23 11:14:44,371 INFO L146 ILogger]: Start accepts. Automaton has 255 states and 264 transitions. Word has length 232 [2019-05-23 11:14:44,371 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:44,371 INFO L146 ILogger]: Abstraction has 255 states and 264 transitions. [2019-05-23 11:14:44,372 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:14:44,372 INFO L146 ILogger]: Start isEmpty. Operand 255 states and 264 transitions. [2019-05-23 11:14:44,373 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 250 [2019-05-23 11:14:44,373 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:44,373 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:44,374 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:44,374 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:44,374 INFO L146 ILogger]: Analyzing trace with hash -228110030, now seen corresponding path program 10 times [2019-05-23 11:14:44,374 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:44,374 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:44,375 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:44,375 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:44,375 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:44,401 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:44,647 INFO L146 ILogger]: Checked inductivity of 390 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-05-23 11:14:44,647 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:44,647 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:44,656 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:14:48,274 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:14:48,274 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:48,280 INFO L146 ILogger]: Trace formula consists of 418 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:14:48,283 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:48,338 INFO L146 ILogger]: Checked inductivity of 390 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-05-23 11:14:48,360 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:48,360 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2019-05-23 11:14:48,361 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:14:48,361 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:14:48,361 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:14:48,361 INFO L146 ILogger]: Start difference. First operand 255 states and 264 transitions. Second operand 21 states. [2019-05-23 11:14:48,688 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:48,688 INFO L146 ILogger]: Finished difference Result 432 states and 450 transitions. [2019-05-23 11:14:48,689 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:14:48,689 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 249 [2019-05-23 11:14:48,689 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:48,691 INFO L146 ILogger]: With dead ends: 432 [2019-05-23 11:14:48,691 INFO L146 ILogger]: Without dead ends: 273 [2019-05-23 11:14:48,692 INFO L146 ILogger]: 0 DeclaredPredicates, 283 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=427, Invalid=905, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:14:48,693 INFO L146 ILogger]: Start minimizeSevpa. Operand 273 states. [2019-05-23 11:14:48,697 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 273 to 265. [2019-05-23 11:14:48,697 INFO L146 ILogger]: Start removeUnreachable. Operand 265 states. [2019-05-23 11:14:48,698 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 265 states to 265 states and 274 transitions. [2019-05-23 11:14:48,698 INFO L146 ILogger]: Start accepts. Automaton has 265 states and 274 transitions. Word has length 249 [2019-05-23 11:14:48,699 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:48,699 INFO L146 ILogger]: Abstraction has 265 states and 274 transitions. [2019-05-23 11:14:48,699 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:14:48,699 INFO L146 ILogger]: Start isEmpty. Operand 265 states and 274 transitions. [2019-05-23 11:14:48,700 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 260 [2019-05-23 11:14:48,701 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:48,701 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:48,701 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:48,701 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:48,702 INFO L146 ILogger]: Analyzing trace with hash 1860953912, now seen corresponding path program 11 times [2019-05-23 11:14:48,702 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:48,702 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:48,703 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:48,703 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:48,703 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:48,732 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:49,088 INFO L146 ILogger]: Checked inductivity of 471 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-05-23 11:14:49,088 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:49,088 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:49,097 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:15:08,483 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2019-05-23 11:15:08,483 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:08,500 INFO L146 ILogger]: Trace formula consists of 432 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:15:08,503 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:08,622 INFO L146 ILogger]: Checked inductivity of 471 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2019-05-23 11:15:08,646 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:08,646 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7] total 26 [2019-05-23 11:15:08,647 INFO L146 ILogger]: Interpolant automaton has 26 states [2019-05-23 11:15:08,647 INFO L146 ILogger]: Constructing interpolant automaton starting with 26 interpolants. [2019-05-23 11:15:08,647 INFO L146 ILogger]: CoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2019-05-23 11:15:08,647 INFO L146 ILogger]: Start difference. First operand 265 states and 274 transitions. Second operand 26 states. [2019-05-23 11:15:09,602 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:09,602 INFO L146 ILogger]: Finished difference Result 454 states and 473 transitions. [2019-05-23 11:15:09,603 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-05-23 11:15:09,603 INFO L146 ILogger]: Start accepts. Automaton has 26 states. Word has length 259 [2019-05-23 11:15:09,603 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:09,605 INFO L146 ILogger]: With dead ends: 454 [2019-05-23 11:15:09,605 INFO L146 ILogger]: Without dead ends: 295 [2019-05-23 11:15:09,606 INFO L146 ILogger]: 0 DeclaredPredicates, 301 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=540, Invalid=1716, Unknown=0, NotChecked=0, Total=2256 [2019-05-23 11:15:09,607 INFO L146 ILogger]: Start minimizeSevpa. Operand 295 states. [2019-05-23 11:15:09,611 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 295 to 282. [2019-05-23 11:15:09,612 INFO L146 ILogger]: Start removeUnreachable. Operand 282 states. [2019-05-23 11:15:09,613 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 282 states to 282 states and 291 transitions. [2019-05-23 11:15:09,613 INFO L146 ILogger]: Start accepts. Automaton has 282 states and 291 transitions. Word has length 259 [2019-05-23 11:15:09,613 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:09,613 INFO L146 ILogger]: Abstraction has 282 states and 291 transitions. [2019-05-23 11:15:09,613 INFO L146 ILogger]: Interpolant automaton has 26 states. [2019-05-23 11:15:09,613 INFO L146 ILogger]: Start isEmpty. Operand 282 states and 291 transitions. [2019-05-23 11:15:09,615 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 277 [2019-05-23 11:15:09,615 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:09,615 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:09,615 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:09,615 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:09,616 INFO L146 ILogger]: Analyzing trace with hash 1765648953, now seen corresponding path program 12 times [2019-05-23 11:15:09,616 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:09,616 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:09,617 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:09,617 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:09,617 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:09,644 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:11,119 INFO L146 ILogger]: Checked inductivity of 577 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-05-23 11:15:11,119 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:11,119 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:15:11,128 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:15:11,457 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-05-23 11:15:11,457 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:11,459 INFO L146 ILogger]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:15:11,462 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:11,606 INFO L146 ILogger]: Checked inductivity of 577 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2019-05-23 11:15:11,625 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:11,626 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 7] total 28 [2019-05-23 11:15:11,626 INFO L146 ILogger]: Interpolant automaton has 28 states [2019-05-23 11:15:11,626 INFO L146 ILogger]: Constructing interpolant automaton starting with 28 interpolants. [2019-05-23 11:15:11,627 INFO L146 ILogger]: CoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:15:11,627 INFO L146 ILogger]: Start difference. First operand 282 states and 291 transitions. Second operand 28 states. [2019-05-23 11:15:12,318 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:12,319 INFO L146 ILogger]: Finished difference Result 478 states and 497 transitions. [2019-05-23 11:15:12,319 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-05-23 11:15:12,319 INFO L146 ILogger]: Start accepts. Automaton has 28 states. Word has length 276 [2019-05-23 11:15:12,320 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:12,322 INFO L146 ILogger]: With dead ends: 478 [2019-05-23 11:15:12,322 INFO L146 ILogger]: Without dead ends: 312 [2019-05-23 11:15:12,324 INFO L146 ILogger]: 0 DeclaredPredicates, 322 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=645, Invalid=2007, Unknown=0, NotChecked=0, Total=2652 [2019-05-23 11:15:12,324 INFO L146 ILogger]: Start minimizeSevpa. Operand 312 states. [2019-05-23 11:15:12,328 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 312 to 299. [2019-05-23 11:15:12,329 INFO L146 ILogger]: Start removeUnreachable. Operand 299 states. [2019-05-23 11:15:12,329 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 299 states to 299 states and 308 transitions. [2019-05-23 11:15:12,330 INFO L146 ILogger]: Start accepts. Automaton has 299 states and 308 transitions. Word has length 276 [2019-05-23 11:15:12,330 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:12,330 INFO L146 ILogger]: Abstraction has 299 states and 308 transitions. [2019-05-23 11:15:12,330 INFO L146 ILogger]: Interpolant automaton has 28 states. [2019-05-23 11:15:12,330 INFO L146 ILogger]: Start isEmpty. Operand 299 states and 308 transitions. [2019-05-23 11:15:12,332 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 294 [2019-05-23 11:15:12,332 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:12,332 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:12,332 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:12,332 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:12,333 INFO L146 ILogger]: Analyzing trace with hash -1281939445, now seen corresponding path program 13 times [2019-05-23 11:15:12,333 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:12,333 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:12,334 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:12,334 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:12,334 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:12,363 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:13,363 INFO L146 ILogger]: Checked inductivity of 693 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:15:13,364 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:13,364 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:15:13,372 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:13,437 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:13,438 INFO L146 ILogger]: Trace formula consists of 480 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:15:13,443 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:14,042 INFO L146 ILogger]: Checked inductivity of 693 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:15:14,079 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:14,080 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2019-05-23 11:15:14,080 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:15:14,081 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:15:14,081 INFO L146 ILogger]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:15:14,082 INFO L146 ILogger]: Start difference. First operand 299 states and 308 transitions. Second operand 27 states. [2019-05-23 11:15:15,413 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:15,413 INFO L146 ILogger]: Finished difference Result 490 states and 508 transitions. [2019-05-23 11:15:15,414 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:15:15,414 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 293 [2019-05-23 11:15:15,414 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:15,415 INFO L146 ILogger]: With dead ends: 490 [2019-05-23 11:15:15,415 INFO L146 ILogger]: Without dead ends: 317 [2019-05-23 11:15:15,416 INFO L146 ILogger]: 0 DeclaredPredicates, 339 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=748, Invalid=1604, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:15:15,417 INFO L146 ILogger]: Start minimizeSevpa. Operand 317 states. [2019-05-23 11:15:15,421 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 317 to 309. [2019-05-23 11:15:15,421 INFO L146 ILogger]: Start removeUnreachable. Operand 309 states. [2019-05-23 11:15:15,422 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 309 states to 309 states and 318 transitions. [2019-05-23 11:15:15,422 INFO L146 ILogger]: Start accepts. Automaton has 309 states and 318 transitions. Word has length 293 [2019-05-23 11:15:15,423 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:15,423 INFO L146 ILogger]: Abstraction has 309 states and 318 transitions. [2019-05-23 11:15:15,423 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:15:15,423 INFO L146 ILogger]: Start isEmpty. Operand 309 states and 318 transitions. [2019-05-23 11:15:15,424 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 304 [2019-05-23 11:15:15,425 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:15,425 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:15,425 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:15,425 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:15,426 INFO L146 ILogger]: Analyzing trace with hash 1272401169, now seen corresponding path program 14 times [2019-05-23 11:15:15,426 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:15,426 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:15,427 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:15,427 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:15:15,427 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:15,457 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:16,471 INFO L146 ILogger]: Checked inductivity of 804 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:15:16,472 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:16,472 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:15:16,481 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:15:16,557 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:15:16,558 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:16,559 INFO L146 ILogger]: Trace formula consists of 494 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:15:16,562 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:16,676 INFO L146 ILogger]: Checked inductivity of 804 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:15:16,695 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:16,695 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2019-05-23 11:15:16,696 INFO L146 ILogger]: Interpolant automaton has 29 states [2019-05-23 11:15:16,696 INFO L146 ILogger]: Constructing interpolant automaton starting with 29 interpolants. [2019-05-23 11:15:16,697 INFO L146 ILogger]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:15:16,697 INFO L146 ILogger]: Start difference. First operand 309 states and 318 transitions. Second operand 29 states. [2019-05-23 11:15:17,630 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:17,630 INFO L146 ILogger]: Finished difference Result 500 states and 518 transitions. [2019-05-23 11:15:17,631 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-05-23 11:15:17,631 INFO L146 ILogger]: Start accepts. Automaton has 29 states. Word has length 303 [2019-05-23 11:15:17,631 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:17,632 INFO L146 ILogger]: With dead ends: 500 [2019-05-23 11:15:17,633 INFO L146 ILogger]: Without dead ends: 327 [2019-05-23 11:15:17,634 INFO L146 ILogger]: 0 DeclaredPredicates, 353 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=875, Invalid=1881, Unknown=0, NotChecked=0, Total=2756 [2019-05-23 11:15:17,634 INFO L146 ILogger]: Start minimizeSevpa. Operand 327 states. [2019-05-23 11:15:17,639 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 327 to 319. [2019-05-23 11:15:17,640 INFO L146 ILogger]: Start removeUnreachable. Operand 319 states. [2019-05-23 11:15:17,640 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 319 states to 319 states and 328 transitions. [2019-05-23 11:15:17,641 INFO L146 ILogger]: Start accepts. Automaton has 319 states and 328 transitions. Word has length 303 [2019-05-23 11:15:17,641 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:17,641 INFO L146 ILogger]: Abstraction has 319 states and 328 transitions. [2019-05-23 11:15:17,641 INFO L146 ILogger]: Interpolant automaton has 29 states. [2019-05-23 11:15:17,641 INFO L146 ILogger]: Start isEmpty. Operand 319 states and 328 transitions. [2019-05-23 11:15:17,643 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 314 [2019-05-23 11:15:17,643 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:17,643 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:17,644 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:17,644 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:17,644 INFO L146 ILogger]: Analyzing trace with hash 524903063, now seen corresponding path program 15 times [2019-05-23 11:15:17,644 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:17,644 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:17,645 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:17,645 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:17,645 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:17,695 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:19,083 INFO L146 ILogger]: Checked inductivity of 925 backedges. 0 proven. 793 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:15:19,083 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:19,083 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:15:19,091 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:15:19,167 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:15:19,167 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:19,168 INFO L146 ILogger]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:15:19,171 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:15:19,353 INFO L146 ILogger]: Checked inductivity of 925 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2019-05-23 11:15:19,372 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:15:19,373 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 7] total 34 [2019-05-23 11:15:19,373 INFO L146 ILogger]: Interpolant automaton has 34 states [2019-05-23 11:15:19,374 INFO L146 ILogger]: Constructing interpolant automaton starting with 34 interpolants. [2019-05-23 11:15:19,374 INFO L146 ILogger]: CoverageRelationStatistics Valid=238, Invalid=884, Unknown=0, NotChecked=0, Total=1122 [2019-05-23 11:15:19,374 INFO L146 ILogger]: Start difference. First operand 319 states and 328 transitions. Second operand 34 states. [2019-05-23 11:15:20,566 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:15:20,566 INFO L146 ILogger]: Finished difference Result 522 states and 541 transitions. [2019-05-23 11:15:20,566 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-05-23 11:15:20,566 INFO L146 ILogger]: Start accepts. Automaton has 34 states. Word has length 313 [2019-05-23 11:15:20,567 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:15:20,569 INFO L146 ILogger]: With dead ends: 522 [2019-05-23 11:15:20,569 INFO L146 ILogger]: Without dead ends: 349 [2019-05-23 11:15:20,572 INFO L146 ILogger]: 0 DeclaredPredicates, 371 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1020, Invalid=3012, Unknown=0, NotChecked=0, Total=4032 [2019-05-23 11:15:20,572 INFO L146 ILogger]: Start minimizeSevpa. Operand 349 states. [2019-05-23 11:15:20,576 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 349 to 336. [2019-05-23 11:15:20,576 INFO L146 ILogger]: Start removeUnreachable. Operand 336 states. [2019-05-23 11:15:20,577 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 336 states to 336 states and 345 transitions. [2019-05-23 11:15:20,577 INFO L146 ILogger]: Start accepts. Automaton has 336 states and 345 transitions. Word has length 313 [2019-05-23 11:15:20,578 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:15:20,578 INFO L146 ILogger]: Abstraction has 336 states and 345 transitions. [2019-05-23 11:15:20,578 INFO L146 ILogger]: Interpolant automaton has 34 states. [2019-05-23 11:15:20,578 INFO L146 ILogger]: Start isEmpty. Operand 336 states and 345 transitions. [2019-05-23 11:15:20,580 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 331 [2019-05-23 11:15:20,580 INFO L146 ILogger]: Found error trace [2019-05-23 11:15:20,580 INFO L146 ILogger]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:15:20,580 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:15:20,580 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:15:20,581 INFO L146 ILogger]: Analyzing trace with hash -601807679, now seen corresponding path program 16 times [2019-05-23 11:15:20,581 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:15:20,581 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:15:20,582 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:20,582 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:15:20,582 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:15:20,608 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:15:21,067 INFO L146 ILogger]: Checked inductivity of 1071 backedges. 0 proven. 924 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-05-23 11:15:21,067 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:15:21,068 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:15:21,077 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST