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-crafted/bAnd2_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:27:27,499 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:27:27,501 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:27:27,513 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:27:27,513 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:27:27,514 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:27:27,516 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:27:27,517 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:27:27,519 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:27:27,520 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:27:27,521 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:27:27,521 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:27:27,522 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:27:27,523 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:27:27,524 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:27:27,525 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:27:27,526 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:27:27,528 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:27:27,529 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:27:27,531 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:27:27,532 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:27:27,533 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:27:27,535 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:27:27,536 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:27:27,536 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:27:27,537 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:27:27,537 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:27:27,538 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:27:27,539 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:27:27,539 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:27:27,540 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:27:27,541 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:27:27,542 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:27:27,542 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:27:27,543 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:27:27,543 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:27:27,543 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:27:27,544 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:27:27,545 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:27:27,545 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:27:27,560 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:27:27,560 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:27:27,561 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:27:27,562 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:27:27,562 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:27:27,562 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:27:27,562 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:27:27,562 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:27:27,563 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:27:27,563 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:27:27,563 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:27:27,563 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:27:27,564 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:27:27,564 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:27:27,564 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:27:27,564 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:27:27,564 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:27:27,565 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:27:27,565 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:27:27,565 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:27:27,565 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:27:27,565 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:27:27,566 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:27:27,566 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:27:27,566 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:27:27,566 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:27:27,567 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:27:27,567 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:27:27,567 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 11:27:27,598 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:27:27,610 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:27:27,613 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:27:27,615 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:27:27,615 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:27:27,616 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-crafted/bAnd2_true-unreach-call.i [2019-05-23 11:27:27,670 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034e82b71/17060cbb63c642db88b5e40eea00b6a2/FLAGf86f0efdf [2019-05-23 11:27:28,086 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:27:28,087 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-crafted/bAnd2_true-unreach-call.i [2019-05-23 11:27:28,093 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034e82b71/17060cbb63c642db88b5e40eea00b6a2/FLAGf86f0efdf [2019-05-23 11:27:28,474 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034e82b71/17060cbb63c642db88b5e40eea00b6a2 [2019-05-23 11:27:28,483 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:27:28,485 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:27:28,486 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:27:28,486 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:27:28,489 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:27:28,490 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:28,493 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a4d8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28, skipping insertion in model container [2019-05-23 11:27:28,494 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:28,501 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:27:28,525 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:27:28,784 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:27:28,800 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:27:28,836 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:27:28,855 INFO L146 ILogger]: Completed translation [2019-05-23 11:27:28,856 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28 WrapperNode [2019-05-23 11:27:28,856 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:27:28,857 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:27:28,857 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:27:28,858 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:27:28,867 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:28,879 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:28,908 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:27:28,908 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:27:28,908 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:27:28,909 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:27:29,008 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:29,008 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:29,012 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:29,012 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:29,031 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:29,036 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:29,038 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (1/1) ... [2019-05-23 11:27:29,040 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:27:29,041 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:27:29,041 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:27:29,041 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:27:29,042 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (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 11:27:29,098 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:27:29,099 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:27:29,099 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:27:29,099 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:27:29,099 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:27:29,099 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:27:29,812 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:27:29,812 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:27:29,813 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:27:29 BoogieIcfgContainer [2019-05-23 11:27:29,813 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:27:29,814 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:27:29,814 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:27:29,817 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:27:29,818 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:27:28" (1/3) ... [2019-05-23 11:27:29,819 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57002fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:27:29, skipping insertion in model container [2019-05-23 11:27:29,819 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:28" (2/3) ... [2019-05-23 11:27:29,819 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57002fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:27:29, skipping insertion in model container [2019-05-23 11:27:29,820 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:27:29" (3/3) ... [2019-05-23 11:27:29,821 INFO L146 ILogger]: Analyzing ICFG bAnd2_true-unreach-call.i [2019-05-23 11:27:29,830 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:27:29,836 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:27:29,851 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:27:29,882 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:27:29,883 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:27:29,883 INFO L146 ILogger]: Hoare is true [2019-05-23 11:27:29,884 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:27:29,884 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:27:29,884 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:27:29,884 INFO L146 ILogger]: Difference is false [2019-05-23 11:27:29,885 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:27:29,885 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:27:29,903 INFO L146 ILogger]: Start isEmpty. Operand 111 states. [2019-05-23 11:27:29,913 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 75 [2019-05-23 11:27:29,913 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:29,915 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:29,917 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:29,923 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:29,923 INFO L146 ILogger]: Analyzing trace with hash -744558543, now seen corresponding path program 1 times [2019-05-23 11:27:29,925 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:29,926 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:29,977 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:29,977 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:29,977 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:30,024 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:30,150 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 11:27:30,153 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:27:30,154 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:27:30,158 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:27:30,173 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:27:30,174 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:27:30,176 INFO L146 ILogger]: Start difference. First operand 111 states. Second operand 3 states. [2019-05-23 11:27:30,323 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:30,323 INFO L146 ILogger]: Finished difference Result 211 states and 231 transitions. [2019-05-23 11:27:30,325 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:27:30,327 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 74 [2019-05-23 11:27:30,327 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:30,347 INFO L146 ILogger]: With dead ends: 211 [2019-05-23 11:27:30,348 INFO L146 ILogger]: Without dead ends: 111 [2019-05-23 11:27:30,352 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 11:27:30,366 INFO L146 ILogger]: Start minimizeSevpa. Operand 111 states. [2019-05-23 11:27:30,386 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 111 to 106. [2019-05-23 11:27:30,387 INFO L146 ILogger]: Start removeUnreachable. Operand 106 states. [2019-05-23 11:27:30,389 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2019-05-23 11:27:30,391 INFO L146 ILogger]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 74 [2019-05-23 11:27:30,391 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:30,392 INFO L146 ILogger]: Abstraction has 106 states and 110 transitions. [2019-05-23 11:27:30,392 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:27:30,392 INFO L146 ILogger]: Start isEmpty. Operand 106 states and 110 transitions. [2019-05-23 11:27:30,395 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 82 [2019-05-23 11:27:30,395 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:30,395 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:30,396 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:30,396 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:30,396 INFO L146 ILogger]: Analyzing trace with hash 490355334, now seen corresponding path program 1 times [2019-05-23 11:27:30,397 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:30,397 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:30,398 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:30,398 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:30,398 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:30,422 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:30,532 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 11:27:30,532 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:30,532 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 11:27:30,550 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:30,606 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:30,608 INFO L146 ILogger]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:27:30,615 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:30,666 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 11:27:30,698 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:27:30,699 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:27:30,700 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:27:30,700 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:27:30,700 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:27:30,702 INFO L146 ILogger]: Start difference. First operand 106 states and 110 transitions. Second operand 6 states. [2019-05-23 11:27:31,071 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:31,072 INFO L146 ILogger]: Finished difference Result 224 states and 235 transitions. [2019-05-23 11:27:31,073 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:27:31,073 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 81 [2019-05-23 11:27:31,073 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:31,075 INFO L146 ILogger]: With dead ends: 224 [2019-05-23 11:27:31,075 INFO L146 ILogger]: Without dead ends: 136 [2019-05-23 11:27:31,077 INFO L146 ILogger]: 0 DeclaredPredicates, 87 GetRequests, 81 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 11:27:31,077 INFO L146 ILogger]: Start minimizeSevpa. Operand 136 states. [2019-05-23 11:27:31,086 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 136 to 116. [2019-05-23 11:27:31,086 INFO L146 ILogger]: Start removeUnreachable. Operand 116 states. [2019-05-23 11:27:31,088 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2019-05-23 11:27:31,088 INFO L146 ILogger]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 81 [2019-05-23 11:27:31,088 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:31,088 INFO L146 ILogger]: Abstraction has 116 states and 120 transitions. [2019-05-23 11:27:31,089 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:27:31,089 INFO L146 ILogger]: Start isEmpty. Operand 116 states and 120 transitions. [2019-05-23 11:27:31,090 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 110 [2019-05-23 11:27:31,091 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:31,091 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:31,091 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:31,092 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:31,092 INFO L146 ILogger]: Analyzing trace with hash 1334643867, now seen corresponding path program 1 times [2019-05-23 11:27:31,092 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:31,092 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:31,093 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:31,094 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:31,094 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:31,117 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:31,238 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:27:31,238 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:31,238 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 11:27:31,249 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:31,298 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:31,299 INFO L146 ILogger]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:27:31,304 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:31,356 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-05-23 11:27:31,377 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:27:31,378 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:27:31,379 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:27:31,379 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:27:31,379 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:27:31,379 INFO L146 ILogger]: Start difference. First operand 116 states and 120 transitions. Second operand 6 states. [2019-05-23 11:27:31,933 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:31,933 INFO L146 ILogger]: Finished difference Result 231 states and 241 transitions. [2019-05-23 11:27:31,933 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:27:31,933 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 109 [2019-05-23 11:27:31,934 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:31,936 INFO L146 ILogger]: With dead ends: 231 [2019-05-23 11:27:31,937 INFO L146 ILogger]: Without dead ends: 158 [2019-05-23 11:27:31,938 INFO L146 ILogger]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:27:31,939 INFO L146 ILogger]: Start minimizeSevpa. Operand 158 states. [2019-05-23 11:27:31,948 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 158 to 138. [2019-05-23 11:27:31,948 INFO L146 ILogger]: Start removeUnreachable. Operand 138 states. [2019-05-23 11:27:31,949 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2019-05-23 11:27:31,950 INFO L146 ILogger]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 109 [2019-05-23 11:27:31,950 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:31,950 INFO L146 ILogger]: Abstraction has 138 states and 142 transitions. [2019-05-23 11:27:31,950 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:27:31,950 INFO L146 ILogger]: Start isEmpty. Operand 138 states and 142 transitions. [2019-05-23 11:27:31,952 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 138 [2019-05-23 11:27:31,953 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:31,953 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:31,953 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:31,954 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:31,954 INFO L146 ILogger]: Analyzing trace with hash -1124741697, now seen corresponding path program 1 times [2019-05-23 11:27:31,954 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:31,954 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:31,955 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:31,955 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:31,955 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:31,989 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:32,107 INFO L146 ILogger]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:27:32,108 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:32,108 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 11:27:32,126 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:32,182 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:32,184 INFO L146 ILogger]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:27:32,190 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:32,307 INFO L146 ILogger]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-05-23 11:27:32,327 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:32,327 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:27:32,328 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:27:32,328 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:27:32,329 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:27:32,329 INFO L146 ILogger]: Start difference. First operand 138 states and 142 transitions. Second operand 10 states. [2019-05-23 11:27:32,949 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:32,949 INFO L146 ILogger]: Finished difference Result 275 states and 284 transitions. [2019-05-23 11:27:32,951 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:27:32,951 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 137 [2019-05-23 11:27:32,951 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:32,953 INFO L146 ILogger]: With dead ends: 275 [2019-05-23 11:27:32,953 INFO L146 ILogger]: Without dead ends: 162 [2019-05-23 11:27:32,956 INFO L146 ILogger]: 0 DeclaredPredicates, 147 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:27:32,957 INFO L146 ILogger]: Start minimizeSevpa. Operand 162 states. [2019-05-23 11:27:32,966 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 162 to 152. [2019-05-23 11:27:32,967 INFO L146 ILogger]: Start removeUnreachable. Operand 152 states. [2019-05-23 11:27:32,968 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2019-05-23 11:27:32,968 INFO L146 ILogger]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 137 [2019-05-23 11:27:32,968 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:32,969 INFO L146 ILogger]: Abstraction has 152 states and 156 transitions. [2019-05-23 11:27:32,969 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:27:32,969 INFO L146 ILogger]: Start isEmpty. Operand 152 states and 156 transitions. [2019-05-23 11:27:32,971 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 152 [2019-05-23 11:27:32,971 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:32,972 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:32,972 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:32,972 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:32,973 INFO L146 ILogger]: Analyzing trace with hash -975484602, now seen corresponding path program 2 times [2019-05-23 11:27:32,973 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:32,973 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:32,974 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:32,974 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:32,974 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:33,012 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:33,222 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:27:33,222 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:33,222 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 11:27:33,233 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:27:33,300 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:27:33,300 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:33,301 INFO L146 ILogger]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:27:33,314 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:33,545 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-05-23 11:27:33,565 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:33,565 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2019-05-23 11:27:33,565 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:27:33,566 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:27:33,566 INFO L146 ILogger]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:27:33,566 INFO L146 ILogger]: Start difference. First operand 152 states and 156 transitions. Second operand 14 states. [2019-05-23 11:27:33,983 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:33,983 INFO L146 ILogger]: Finished difference Result 320 states and 331 transitions. [2019-05-23 11:27:33,984 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-05-23 11:27:33,984 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 151 [2019-05-23 11:27:33,984 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:33,986 INFO L146 ILogger]: With dead ends: 320 [2019-05-23 11:27:33,986 INFO L146 ILogger]: Without dead ends: 200 [2019-05-23 11:27:33,988 INFO L146 ILogger]: 0 DeclaredPredicates, 173 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2019-05-23 11:27:33,989 INFO L146 ILogger]: Start minimizeSevpa. Operand 200 states. [2019-05-23 11:27:33,996 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 200 to 180. [2019-05-23 11:27:33,996 INFO L146 ILogger]: Start removeUnreachable. Operand 180 states. [2019-05-23 11:27:33,997 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 180 states to 180 states and 184 transitions. [2019-05-23 11:27:33,997 INFO L146 ILogger]: Start accepts. Automaton has 180 states and 184 transitions. Word has length 151 [2019-05-23 11:27:33,998 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:33,998 INFO L146 ILogger]: Abstraction has 180 states and 184 transitions. [2019-05-23 11:27:33,998 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:27:33,998 INFO L146 ILogger]: Start isEmpty. Operand 180 states and 184 transitions. [2019-05-23 11:27:34,001 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 180 [2019-05-23 11:27:34,001 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:34,001 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:34,002 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:34,002 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:34,002 INFO L146 ILogger]: Analyzing trace with hash 826407579, now seen corresponding path program 3 times [2019-05-23 11:27:34,002 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:34,002 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:34,003 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:34,003 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:34,004 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:34,036 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:34,270 INFO L146 ILogger]: Checked inductivity of 127 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-05-23 11:27:34,270 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:34,270 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 11:27:34,279 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:27:34,332 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:27:34,333 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:34,333 INFO L146 ILogger]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:27:34,338 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:34,457 INFO L146 ILogger]: Checked inductivity of 127 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-05-23 11:27:34,477 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:34,477 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 16 [2019-05-23 11:27:34,478 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:27:34,478 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:27:34,479 INFO L146 ILogger]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:27:34,479 INFO L146 ILogger]: Start difference. First operand 180 states and 184 transitions. Second operand 16 states. [2019-05-23 11:27:35,017 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:35,018 INFO L146 ILogger]: Finished difference Result 345 states and 354 transitions. [2019-05-23 11:27:35,019 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:27:35,019 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 179 [2019-05-23 11:27:35,020 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:35,021 INFO L146 ILogger]: With dead ends: 345 [2019-05-23 11:27:35,022 INFO L146 ILogger]: Without dead ends: 204 [2019-05-23 11:27:35,023 INFO L146 ILogger]: 0 DeclaredPredicates, 201 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:27:35,024 INFO L146 ILogger]: Start minimizeSevpa. Operand 204 states. [2019-05-23 11:27:35,031 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 204 to 194. [2019-05-23 11:27:35,032 INFO L146 ILogger]: Start removeUnreachable. Operand 194 states. [2019-05-23 11:27:35,032 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 194 states to 194 states and 198 transitions. [2019-05-23 11:27:35,033 INFO L146 ILogger]: Start accepts. Automaton has 194 states and 198 transitions. Word has length 179 [2019-05-23 11:27:35,033 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:35,033 INFO L146 ILogger]: Abstraction has 194 states and 198 transitions. [2019-05-23 11:27:35,033 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:27:35,033 INFO L146 ILogger]: Start isEmpty. Operand 194 states and 198 transitions. [2019-05-23 11:27:35,037 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 194 [2019-05-23 11:27:35,037 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:35,037 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:35,037 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:35,038 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:35,046 INFO L146 ILogger]: Analyzing trace with hash -1269375300, now seen corresponding path program 4 times [2019-05-23 11:27:35,046 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:35,046 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:35,047 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:35,047 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:35,047 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:35,100 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:35,400 INFO L146 ILogger]: Checked inductivity of 171 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-05-23 11:27:35,400 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:35,400 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 11:27:35,410 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:27:35,471 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:27:35,471 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:35,473 INFO L146 ILogger]: Trace formula consists of 302 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:27:35,477 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:35,549 INFO L146 ILogger]: Checked inductivity of 171 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-05-23 11:27:35,569 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:35,569 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2019-05-23 11:27:35,570 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:27:35,570 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:27:35,571 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:27:35,571 INFO L146 ILogger]: Start difference. First operand 194 states and 198 transitions. Second operand 15 states. [2019-05-23 11:27:35,895 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:35,895 INFO L146 ILogger]: Finished difference Result 354 states and 362 transitions. [2019-05-23 11:27:35,902 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:27:35,902 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 193 [2019-05-23 11:27:35,902 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:35,903 INFO L146 ILogger]: With dead ends: 354 [2019-05-23 11:27:35,904 INFO L146 ILogger]: Without dead ends: 206 [2019-05-23 11:27:35,905 INFO L146 ILogger]: 0 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=196, Invalid=404, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:27:35,905 INFO L146 ILogger]: Start minimizeSevpa. Operand 206 states. [2019-05-23 11:27:35,910 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 206 to 201. [2019-05-23 11:27:35,910 INFO L146 ILogger]: Start removeUnreachable. Operand 201 states. [2019-05-23 11:27:35,911 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 201 states to 201 states and 205 transitions. [2019-05-23 11:27:35,912 INFO L146 ILogger]: Start accepts. Automaton has 201 states and 205 transitions. Word has length 193 [2019-05-23 11:27:35,912 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:35,912 INFO L146 ILogger]: Abstraction has 201 states and 205 transitions. [2019-05-23 11:27:35,912 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:27:35,912 INFO L146 ILogger]: Start isEmpty. Operand 201 states and 205 transitions. [2019-05-23 11:27:35,914 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 201 [2019-05-23 11:27:35,915 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:35,915 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:35,915 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:35,915 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:35,916 INFO L146 ILogger]: Analyzing trace with hash -2060195022, now seen corresponding path program 5 times [2019-05-23 11:27:35,916 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:35,916 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:35,917 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:35,917 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:35,917 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:35,945 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:36,279 INFO L146 ILogger]: Checked inductivity of 207 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-05-23 11:27:36,280 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:36,280 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 11:27:36,288 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:27:36,461 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2019-05-23 11:27:36,461 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:36,463 INFO L146 ILogger]: Trace formula consists of 312 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:27:36,465 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:36,633 INFO L146 ILogger]: Checked inductivity of 207 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2019-05-23 11:27:36,653 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:36,653 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9] total 22 [2019-05-23 11:27:36,654 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:27:36,654 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:27:36,654 INFO L146 ILogger]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:27:36,655 INFO L146 ILogger]: Start difference. First operand 201 states and 205 transitions. Second operand 22 states. [2019-05-23 11:27:37,088 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:37,088 INFO L146 ILogger]: Finished difference Result 373 states and 382 transitions. [2019-05-23 11:27:37,089 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-05-23 11:27:37,089 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 200 [2019-05-23 11:27:37,089 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:37,091 INFO L146 ILogger]: With dead ends: 373 [2019-05-23 11:27:37,091 INFO L146 ILogger]: Without dead ends: 225 [2019-05-23 11:27:37,092 INFO L146 ILogger]: 0 DeclaredPredicates, 232 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=320, Invalid=1240, Unknown=0, NotChecked=0, Total=1560 [2019-05-23 11:27:37,093 INFO L146 ILogger]: Start minimizeSevpa. Operand 225 states. [2019-05-23 11:27:37,097 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 225 to 215. [2019-05-23 11:27:37,098 INFO L146 ILogger]: Start removeUnreachable. Operand 215 states. [2019-05-23 11:27:37,099 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 215 states to 215 states and 219 transitions. [2019-05-23 11:27:37,099 INFO L146 ILogger]: Start accepts. Automaton has 215 states and 219 transitions. Word has length 200 [2019-05-23 11:27:37,099 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:37,099 INFO L146 ILogger]: Abstraction has 215 states and 219 transitions. [2019-05-23 11:27:37,099 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:27:37,100 INFO L146 ILogger]: Start isEmpty. Operand 215 states and 219 transitions. [2019-05-23 11:27:37,101 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 215 [2019-05-23 11:27:37,101 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:37,101 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:37,101 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:37,102 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:37,102 INFO L146 ILogger]: Analyzing trace with hash -1522860047, now seen corresponding path program 6 times [2019-05-23 11:27:37,102 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:37,102 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:37,103 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:37,103 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:37,103 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:37,127 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:37,366 INFO L146 ILogger]: Checked inductivity of 272 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-05-23 11:27:37,366 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:37,366 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 11:27:37,376 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:27:37,493 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:27:37,493 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:37,495 INFO L146 ILogger]: Trace formula consists of 312 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:27:37,498 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:37,699 INFO L146 ILogger]: Checked inductivity of 272 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2019-05-23 11:27:37,718 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:37,718 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9] total 24 [2019-05-23 11:27:37,719 INFO L146 ILogger]: Interpolant automaton has 24 states [2019-05-23 11:27:37,719 INFO L146 ILogger]: Constructing interpolant automaton starting with 24 interpolants. [2019-05-23 11:27:37,720 INFO L146 ILogger]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2019-05-23 11:27:37,721 INFO L146 ILogger]: Start difference. First operand 215 states and 219 transitions. Second operand 24 states. [2019-05-23 11:27:38,558 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:38,558 INFO L146 ILogger]: Finished difference Result 418 states and 429 transitions. [2019-05-23 11:27:38,559 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-05-23 11:27:38,559 INFO L146 ILogger]: Start accepts. Automaton has 24 states. Word has length 214 [2019-05-23 11:27:38,559 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:38,560 INFO L146 ILogger]: With dead ends: 418 [2019-05-23 11:27:38,560 INFO L146 ILogger]: Without dead ends: 263 [2019-05-23 11:27:38,563 INFO L146 ILogger]: 0 DeclaredPredicates, 250 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2019-05-23 11:27:38,564 INFO L146 ILogger]: Start minimizeSevpa. Operand 263 states. [2019-05-23 11:27:38,572 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 263 to 243. [2019-05-23 11:27:38,572 INFO L146 ILogger]: Start removeUnreachable. Operand 243 states. [2019-05-23 11:27:38,573 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 243 states to 243 states and 247 transitions. [2019-05-23 11:27:38,573 INFO L146 ILogger]: Start accepts. Automaton has 243 states and 247 transitions. Word has length 214 [2019-05-23 11:27:38,574 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:38,574 INFO L146 ILogger]: Abstraction has 243 states and 247 transitions. [2019-05-23 11:27:38,574 INFO L146 ILogger]: Interpolant automaton has 24 states. [2019-05-23 11:27:38,574 INFO L146 ILogger]: Start isEmpty. Operand 243 states and 247 transitions. [2019-05-23 11:27:38,575 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 243 [2019-05-23 11:27:38,575 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:38,576 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:38,576 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:38,576 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:38,576 INFO L146 ILogger]: Analyzing trace with hash 1904402492, now seen corresponding path program 7 times [2019-05-23 11:27:38,577 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:38,577 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:38,577 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:38,578 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:38,578 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:38,609 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:38,865 INFO L146 ILogger]: Checked inductivity of 388 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2019-05-23 11:27:38,866 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:38,866 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 11:27:38,874 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:38,937 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:38,939 INFO L146 ILogger]: Trace formula consists of 372 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:27:38,942 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:39,370 INFO L146 ILogger]: Checked inductivity of 388 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2019-05-23 11:27:39,402 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:39,402 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2019-05-23 11:27:39,403 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:27:39,404 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:27:39,404 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:27:39,405 INFO L146 ILogger]: Start difference. First operand 243 states and 247 transitions. Second operand 21 states. [2019-05-23 11:27:39,818 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:39,818 INFO L146 ILogger]: Finished difference Result 431 states and 439 transitions. [2019-05-23 11:27:39,819 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:27:39,819 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 242 [2019-05-23 11:27:39,819 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:39,820 INFO L146 ILogger]: With dead ends: 431 [2019-05-23 11:27:39,821 INFO L146 ILogger]: Without dead ends: 255 [2019-05-23 11:27:39,822 INFO L146 ILogger]: 0 DeclaredPredicates, 276 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=427, Invalid=905, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:27:39,822 INFO L146 ILogger]: Start minimizeSevpa. Operand 255 states. [2019-05-23 11:27:39,826 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 255 to 250. [2019-05-23 11:27:39,827 INFO L146 ILogger]: Start removeUnreachable. Operand 250 states. [2019-05-23 11:27:39,828 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 250 states to 250 states and 254 transitions. [2019-05-23 11:27:39,828 INFO L146 ILogger]: Start accepts. Automaton has 250 states and 254 transitions. Word has length 242 [2019-05-23 11:27:39,828 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:39,828 INFO L146 ILogger]: Abstraction has 250 states and 254 transitions. [2019-05-23 11:27:39,828 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:27:39,829 INFO L146 ILogger]: Start isEmpty. Operand 250 states and 254 transitions. [2019-05-23 11:27:39,830 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 250 [2019-05-23 11:27:39,830 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:39,830 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:39,831 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:39,831 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:39,831 INFO L146 ILogger]: Analyzing trace with hash 1648486022, now seen corresponding path program 8 times [2019-05-23 11:27:39,831 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:39,831 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:39,832 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:39,832 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:39,832 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:39,857 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:41,016 INFO L146 ILogger]: Checked inductivity of 445 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2019-05-23 11:27:41,016 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:41,016 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 11:27:41,026 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:27:41,096 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:27:41,096 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:41,098 INFO L146 ILogger]: Trace formula consists of 382 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:27:41,101 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:41,185 INFO L146 ILogger]: Checked inductivity of 445 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2019-05-23 11:27:41,207 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:41,207 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2019-05-23 11:27:41,208 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:27:41,208 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:27:41,208 INFO L146 ILogger]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:27:41,208 INFO L146 ILogger]: Start difference. First operand 250 states and 254 transitions. Second operand 23 states. [2019-05-23 11:27:41,571 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:41,572 INFO L146 ILogger]: Finished difference Result 438 states and 446 transitions. [2019-05-23 11:27:41,573 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:27:41,574 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 249 [2019-05-23 11:27:41,574 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:41,575 INFO L146 ILogger]: With dead ends: 438 [2019-05-23 11:27:41,576 INFO L146 ILogger]: Without dead ends: 262 [2019-05-23 11:27:41,577 INFO L146 ILogger]: 0 DeclaredPredicates, 287 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 11:27:41,578 INFO L146 ILogger]: Start minimizeSevpa. Operand 262 states. [2019-05-23 11:27:41,582 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 262 to 257. [2019-05-23 11:27:41,583 INFO L146 ILogger]: Start removeUnreachable. Operand 257 states. [2019-05-23 11:27:41,584 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 257 states to 257 states and 261 transitions. [2019-05-23 11:27:41,585 INFO L146 ILogger]: Start accepts. Automaton has 257 states and 261 transitions. Word has length 249 [2019-05-23 11:27:41,585 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:41,586 INFO L146 ILogger]: Abstraction has 257 states and 261 transitions. [2019-05-23 11:27:41,586 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:27:41,586 INFO L146 ILogger]: Start isEmpty. Operand 257 states and 261 transitions. [2019-05-23 11:27:41,587 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 257 [2019-05-23 11:27:41,587 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:41,588 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:41,588 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:41,588 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:41,588 INFO L146 ILogger]: Analyzing trace with hash 986126588, now seen corresponding path program 9 times [2019-05-23 11:27:41,589 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:41,589 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:41,590 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:41,590 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:41,590 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:41,630 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:42,870 INFO L146 ILogger]: Checked inductivity of 509 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2019-05-23 11:27:42,870 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:42,870 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 11:27:42,881 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:27:42,990 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-05-23 11:27:42,990 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:42,992 INFO L146 ILogger]: Trace formula consists of 332 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:27:42,996 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:43,166 INFO L146 ILogger]: Checked inductivity of 509 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2019-05-23 11:27:43,185 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:43,185 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11] total 32 [2019-05-23 11:27:43,186 INFO L146 ILogger]: Interpolant automaton has 32 states [2019-05-23 11:27:43,186 INFO L146 ILogger]: Constructing interpolant automaton starting with 32 interpolants. [2019-05-23 11:27:43,187 INFO L146 ILogger]: CoverageRelationStatistics Valid=177, Invalid=815, Unknown=0, NotChecked=0, Total=992 [2019-05-23 11:27:43,187 INFO L146 ILogger]: Start difference. First operand 257 states and 261 transitions. Second operand 32 states. [2019-05-23 11:27:45,936 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:45,936 INFO L146 ILogger]: Finished difference Result 481 states and 492 transitions. [2019-05-23 11:27:45,936 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-05-23 11:27:45,937 INFO L146 ILogger]: Start accepts. Automaton has 32 states. Word has length 256 [2019-05-23 11:27:45,937 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:45,939 INFO L146 ILogger]: With dead ends: 481 [2019-05-23 11:27:45,939 INFO L146 ILogger]: Without dead ends: 305 [2019-05-23 11:27:45,941 INFO L146 ILogger]: 0 DeclaredPredicates, 314 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=725, Invalid=2815, Unknown=0, NotChecked=0, Total=3540 [2019-05-23 11:27:45,942 INFO L146 ILogger]: Start minimizeSevpa. Operand 305 states. [2019-05-23 11:27:45,946 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 305 to 285. [2019-05-23 11:27:45,946 INFO L146 ILogger]: Start removeUnreachable. Operand 285 states. [2019-05-23 11:27:45,947 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 285 states to 285 states and 289 transitions. [2019-05-23 11:27:45,947 INFO L146 ILogger]: Start accepts. Automaton has 285 states and 289 transitions. Word has length 256 [2019-05-23 11:27:45,948 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:45,948 INFO L146 ILogger]: Abstraction has 285 states and 289 transitions. [2019-05-23 11:27:45,948 INFO L146 ILogger]: Interpolant automaton has 32 states. [2019-05-23 11:27:45,948 INFO L146 ILogger]: Start isEmpty. Operand 285 states and 289 transitions. [2019-05-23 11:27:45,949 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 285 [2019-05-23 11:27:45,950 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:45,950 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:45,950 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:45,950 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:45,951 INFO L146 ILogger]: Analyzing trace with hash 947145873, now seen corresponding path program 10 times [2019-05-23 11:27:45,951 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:45,951 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:45,952 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:45,952 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:45,952 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:45,978 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:46,584 INFO L146 ILogger]: Checked inductivity of 667 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2019-05-23 11:27:46,585 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:46,585 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:27:46,595 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:27:46,714 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:27:46,714 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:46,716 INFO L146 ILogger]: Trace formula consists of 432 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:27:46,720 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:46,831 INFO L146 ILogger]: Checked inductivity of 667 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2019-05-23 11:27:46,851 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:46,852 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2019-05-23 11:27:46,852 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:27:46,852 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:27:46,853 INFO L146 ILogger]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:27:46,853 INFO L146 ILogger]: Start difference. First operand 285 states and 289 transitions. Second operand 27 states. [2019-05-23 11:27:47,463 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:47,463 INFO L146 ILogger]: Finished difference Result 494 states and 502 transitions. [2019-05-23 11:27:47,464 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:27:47,464 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 284 [2019-05-23 11:27:47,464 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:47,466 INFO L146 ILogger]: With dead ends: 494 [2019-05-23 11:27:47,466 INFO L146 ILogger]: Without dead ends: 297 [2019-05-23 11:27:47,467 INFO L146 ILogger]: 0 DeclaredPredicates, 330 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=748, Invalid=1604, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:27:47,468 INFO L146 ILogger]: Start minimizeSevpa. Operand 297 states. [2019-05-23 11:27:47,473 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 297 to 292. [2019-05-23 11:27:47,473 INFO L146 ILogger]: Start removeUnreachable. Operand 292 states. [2019-05-23 11:27:47,474 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 292 states to 292 states and 296 transitions. [2019-05-23 11:27:47,474 INFO L146 ILogger]: Start accepts. Automaton has 292 states and 296 transitions. Word has length 284 [2019-05-23 11:27:47,475 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:47,475 INFO L146 ILogger]: Abstraction has 292 states and 296 transitions. [2019-05-23 11:27:47,475 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:27:47,475 INFO L146 ILogger]: Start isEmpty. Operand 292 states and 296 transitions. [2019-05-23 11:27:47,476 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 292 [2019-05-23 11:27:47,477 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:47,477 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:47,477 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:47,478 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:47,478 INFO L146 ILogger]: Analyzing trace with hash -1745496485, now seen corresponding path program 11 times [2019-05-23 11:27:47,478 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:47,478 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:47,479 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:47,479 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:47,479 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:47,516 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:47,912 INFO L146 ILogger]: Checked inductivity of 745 backedges. 0 proven. 474 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2019-05-23 11:27:47,912 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:47,912 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 11:27:47,921 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:27:48,161 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2019-05-23 11:27:48,161 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:48,163 INFO L146 ILogger]: Trace formula consists of 442 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:27:48,168 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:48,515 INFO L146 ILogger]: Checked inductivity of 745 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2019-05-23 11:27:48,534 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:48,535 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 13] total 38 [2019-05-23 11:27:48,535 INFO L146 ILogger]: Interpolant automaton has 38 states [2019-05-23 11:27:48,536 INFO L146 ILogger]: Constructing interpolant automaton starting with 38 interpolants. [2019-05-23 11:27:48,536 INFO L146 ILogger]: CoverageRelationStatistics Valid=242, Invalid=1164, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 11:27:48,537 INFO L146 ILogger]: Start difference. First operand 292 states and 296 transitions. Second operand 38 states. [2019-05-23 11:27:49,869 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:49,870 INFO L146 ILogger]: Finished difference Result 537 states and 548 transitions. [2019-05-23 11:27:49,870 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-05-23 11:27:49,870 INFO L146 ILogger]: Start accepts. Automaton has 38 states. Word has length 291 [2019-05-23 11:27:49,871 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:49,873 INFO L146 ILogger]: With dead ends: 537 [2019-05-23 11:27:49,873 INFO L146 ILogger]: Without dead ends: 340 [2019-05-23 11:27:49,876 INFO L146 ILogger]: 0 DeclaredPredicates, 361 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1020, Invalid=4092, Unknown=0, NotChecked=0, Total=5112 [2019-05-23 11:27:49,877 INFO L146 ILogger]: Start minimizeSevpa. Operand 340 states. [2019-05-23 11:27:49,881 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 340 to 320. [2019-05-23 11:27:49,882 INFO L146 ILogger]: Start removeUnreachable. Operand 320 states. [2019-05-23 11:27:49,883 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 320 states to 320 states and 324 transitions. [2019-05-23 11:27:49,883 INFO L146 ILogger]: Start accepts. Automaton has 320 states and 324 transitions. Word has length 291 [2019-05-23 11:27:49,883 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:49,883 INFO L146 ILogger]: Abstraction has 320 states and 324 transitions. [2019-05-23 11:27:49,883 INFO L146 ILogger]: Interpolant automaton has 38 states. [2019-05-23 11:27:49,883 INFO L146 ILogger]: Start isEmpty. Operand 320 states and 324 transitions. [2019-05-23 11:27:49,885 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 320 [2019-05-23 11:27:49,885 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:49,886 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:49,886 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:49,886 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:49,886 INFO L146 ILogger]: Analyzing trace with hash -1559080090, now seen corresponding path program 12 times [2019-05-23 11:27:49,886 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:49,887 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:49,887 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:49,887 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:49,888 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:49,914 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:50,779 INFO L146 ILogger]: Checked inductivity of 938 backedges. 0 proven. 559 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2019-05-23 11:27:50,779 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:50,779 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 11:27:50,788 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:27:51,113 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2019-05-23 11:27:51,113 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:51,116 INFO L146 ILogger]: Trace formula consists of 372 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:27:51,119 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:51,406 INFO L146 ILogger]: Checked inductivity of 938 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2019-05-23 11:27:51,425 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:51,426 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 11] total 38 [2019-05-23 11:27:51,426 INFO L146 ILogger]: Interpolant automaton has 38 states [2019-05-23 11:27:51,427 INFO L146 ILogger]: Constructing interpolant automaton starting with 38 interpolants. [2019-05-23 11:27:51,427 INFO L146 ILogger]: CoverageRelationStatistics Valid=258, Invalid=1148, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 11:27:51,427 INFO L146 ILogger]: Start difference. First operand 320 states and 324 transitions. Second operand 38 states. [2019-05-23 11:27:52,448 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:52,448 INFO L146 ILogger]: Finished difference Result 562 states and 571 transitions. [2019-05-23 11:27:52,449 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-05-23 11:27:52,449 INFO L146 ILogger]: Start accepts. Automaton has 38 states. Word has length 319 [2019-05-23 11:27:52,449 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:52,451 INFO L146 ILogger]: With dead ends: 562 [2019-05-23 11:27:52,452 INFO L146 ILogger]: Without dead ends: 344 [2019-05-23 11:27:52,454 INFO L146 ILogger]: 0 DeclaredPredicates, 381 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1100, Invalid=4012, Unknown=0, NotChecked=0, Total=5112 [2019-05-23 11:27:52,455 INFO L146 ILogger]: Start minimizeSevpa. Operand 344 states. [2019-05-23 11:27:52,459 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 344 to 334. [2019-05-23 11:27:52,460 INFO L146 ILogger]: Start removeUnreachable. Operand 334 states. [2019-05-23 11:27:52,460 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 334 states to 334 states and 338 transitions. [2019-05-23 11:27:52,461 INFO L146 ILogger]: Start accepts. Automaton has 334 states and 338 transitions. Word has length 319 [2019-05-23 11:27:52,461 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:52,461 INFO L146 ILogger]: Abstraction has 334 states and 338 transitions. [2019-05-23 11:27:52,461 INFO L146 ILogger]: Interpolant automaton has 38 states. [2019-05-23 11:27:52,461 INFO L146 ILogger]: Start isEmpty. Operand 334 states and 338 transitions. [2019-05-23 11:27:52,463 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 334 [2019-05-23 11:27:52,463 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:52,463 INFO L146 ILogger]: trace histogram [14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:52,464 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:52,464 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:52,464 INFO L146 ILogger]: Analyzing trace with hash 246463935, now seen corresponding path program 13 times [2019-05-23 11:27:52,464 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:52,464 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:52,465 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:52,465 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:52,465 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:52,489 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:53,432 INFO L146 ILogger]: Checked inductivity of 1059 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-05-23 11:27:53,432 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:53,433 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 11:27:53,441 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:53,528 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:53,530 INFO L146 ILogger]: Trace formula consists of 502 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 11:27:53,535 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:54,214 INFO L146 ILogger]: Checked inductivity of 1059 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-05-23 11:27:54,255 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:54,255 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2019-05-23 11:27:54,256 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:27:54,256 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:27:54,257 INFO L146 ILogger]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:27:54,257 INFO L146 ILogger]: Start difference. First operand 334 states and 338 transitions. Second operand 33 states. [2019-05-23 11:27:55,609 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:55,609 INFO L146 ILogger]: Finished difference Result 571 states and 579 transitions. [2019-05-23 11:27:55,609 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-05-23 11:27:55,609 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 333 [2019-05-23 11:27:55,610 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:55,611 INFO L146 ILogger]: With dead ends: 571 [2019-05-23 11:27:55,611 INFO L146 ILogger]: Without dead ends: 346 [2019-05-23 11:27:55,613 INFO L146 ILogger]: 0 DeclaredPredicates, 391 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1159, Invalid=2501, Unknown=0, NotChecked=0, Total=3660 [2019-05-23 11:27:55,614 INFO L146 ILogger]: Start minimizeSevpa. Operand 346 states. [2019-05-23 11:27:55,618 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 346 to 341. [2019-05-23 11:27:55,618 INFO L146 ILogger]: Start removeUnreachable. Operand 341 states. [2019-05-23 11:27:55,619 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 341 states to 341 states and 345 transitions. [2019-05-23 11:27:55,619 INFO L146 ILogger]: Start accepts. Automaton has 341 states and 345 transitions. Word has length 333 [2019-05-23 11:27:55,619 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:55,619 INFO L146 ILogger]: Abstraction has 341 states and 345 transitions. [2019-05-23 11:27:55,620 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:27:55,620 INFO L146 ILogger]: Start isEmpty. Operand 341 states and 345 transitions. [2019-05-23 11:27:55,621 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 341 [2019-05-23 11:27:55,622 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:55,622 INFO L146 ILogger]: trace histogram [15, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:55,622 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:55,622 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:55,623 INFO L146 ILogger]: Analyzing trace with hash -1089246923, now seen corresponding path program 14 times [2019-05-23 11:27:55,623 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:55,623 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:55,624 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:55,624 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:55,624 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:55,650 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:56,494 INFO L146 ILogger]: Checked inductivity of 1158 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-05-23 11:27:56,494 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:56,494 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 11:27:56,503 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:27:56,581 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:27:56,581 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:56,582 INFO L146 ILogger]: Trace formula consists of 512 conjuncts, 32 conjunts are in the unsatisfiable core [2019-05-23 11:27:56,586 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:56,696 INFO L146 ILogger]: Checked inductivity of 1158 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-05-23 11:27:56,715 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:56,716 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2019-05-23 11:27:56,716 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:27:56,717 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:27:56,717 INFO L146 ILogger]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:27:56,717 INFO L146 ILogger]: Start difference. First operand 341 states and 345 transitions. Second operand 35 states. [2019-05-23 11:27:57,362 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:57,362 INFO L146 ILogger]: Finished difference Result 578 states and 586 transitions. [2019-05-23 11:27:57,363 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-05-23 11:27:57,363 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 340 [2019-05-23 11:27:57,363 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:57,365 INFO L146 ILogger]: With dead ends: 578 [2019-05-23 11:27:57,365 INFO L146 ILogger]: Without dead ends: 353 [2019-05-23 11:27:57,367 INFO L146 ILogger]: 0 DeclaredPredicates, 402 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1316, Invalid=2844, Unknown=0, NotChecked=0, Total=4160 [2019-05-23 11:27:57,368 INFO L146 ILogger]: Start minimizeSevpa. Operand 353 states. [2019-05-23 11:27:57,373 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 353 to 348. [2019-05-23 11:27:57,373 INFO L146 ILogger]: Start removeUnreachable. Operand 348 states. [2019-05-23 11:27:57,374 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 348 states to 348 states and 352 transitions. [2019-05-23 11:27:57,374 INFO L146 ILogger]: Start accepts. Automaton has 348 states and 352 transitions. Word has length 340 [2019-05-23 11:27:57,374 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:57,375 INFO L146 ILogger]: Abstraction has 348 states and 352 transitions. [2019-05-23 11:27:57,375 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:27:57,375 INFO L146 ILogger]: Start isEmpty. Operand 348 states and 352 transitions. [2019-05-23 11:27:57,377 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 348 [2019-05-23 11:27:57,377 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:57,377 INFO L146 ILogger]: trace histogram [16, 16, 16, 16, 16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:57,378 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:57,378 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:57,378 INFO L146 ILogger]: Analyzing trace with hash -2026566401, now seen corresponding path program 15 times [2019-05-23 11:27:57,378 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:57,378 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:57,379 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:57,379 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:57,380 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:57,406 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:58,371 INFO L146 ILogger]: Checked inductivity of 1264 backedges. 0 proven. 856 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-05-23 11:27:58,371 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:58,371 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 11:27:58,381 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:27:58,562 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-05-23 11:27:58,563 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:58,565 INFO L146 ILogger]: Trace formula consists of 382 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:27:58,568 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:58,843 INFO L146 ILogger]: Checked inductivity of 1264 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1189 trivial. 0 not checked. [2019-05-23 11:27:58,862 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:58,862 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 13] total 46 [2019-05-23 11:27:58,863 INFO L146 ILogger]: Interpolant automaton has 46 states [2019-05-23 11:27:58,863 INFO L146 ILogger]: Constructing interpolant automaton starting with 46 interpolants. [2019-05-23 11:27:58,864 INFO L146 ILogger]: CoverageRelationStatistics Valid=370, Invalid=1700, Unknown=0, NotChecked=0, Total=2070 [2019-05-23 11:27:58,864 INFO L146 ILogger]: Start difference. First operand 348 states and 352 transitions. Second operand 46 states. [2019-05-23 11:28:00,072 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:00,072 INFO L146 ILogger]: Finished difference Result 597 states and 606 transitions. [2019-05-23 11:28:00,073 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-05-23 11:28:00,073 INFO L146 ILogger]: Start accepts. Automaton has 46 states. Word has length 347 [2019-05-23 11:28:00,073 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:00,075 INFO L146 ILogger]: With dead ends: 597 [2019-05-23 11:28:00,075 INFO L146 ILogger]: Without dead ends: 372 [2019-05-23 11:28:00,078 INFO L146 ILogger]: 0 DeclaredPredicates, 423 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1462 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1620, Invalid=6036, Unknown=0, NotChecked=0, Total=7656 [2019-05-23 11:28:00,079 INFO L146 ILogger]: Start minimizeSevpa. Operand 372 states. [2019-05-23 11:28:00,083 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 372 to 362. [2019-05-23 11:28:00,083 INFO L146 ILogger]: Start removeUnreachable. Operand 362 states. [2019-05-23 11:28:00,084 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 362 states to 362 states and 366 transitions. [2019-05-23 11:28:00,084 INFO L146 ILogger]: Start accepts. Automaton has 362 states and 366 transitions. Word has length 347 [2019-05-23 11:28:00,084 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:00,085 INFO L146 ILogger]: Abstraction has 362 states and 366 transitions. [2019-05-23 11:28:00,085 INFO L146 ILogger]: Interpolant automaton has 46 states. [2019-05-23 11:28:00,085 INFO L146 ILogger]: Start isEmpty. Operand 362 states and 366 transitions. [2019-05-23 11:28:00,087 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 362 [2019-05-23 11:28:00,087 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:00,087 INFO L146 ILogger]: trace histogram [17, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:00,087 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:00,088 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:00,088 INFO L146 ILogger]: Analyzing trace with hash 760365830, now seen corresponding path program 16 times [2019-05-23 11:28:00,088 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:00,088 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:00,089 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:00,089 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:28:00,089 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:00,115 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:00,854 INFO L146 ILogger]: Checked inductivity of 1413 backedges. 0 proven. 969 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-05-23 11:28:00,854 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:28:00,854 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:28:00,863 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:28:01,159 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:28:01,159 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:01,161 INFO L146 ILogger]: Trace formula consists of 542 conjuncts, 36 conjunts are in the unsatisfiable core [2019-05-23 11:28:01,165 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:28:01,336 INFO L146 ILogger]: Checked inductivity of 1413 backedges. 0 proven. 969 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-05-23 11:28:01,356 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:28:01,357 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2019-05-23 11:28:01,357 INFO L146 ILogger]: Interpolant automaton has 39 states [2019-05-23 11:28:01,357 INFO L146 ILogger]: Constructing interpolant automaton starting with 39 interpolants. [2019-05-23 11:28:01,358 INFO L146 ILogger]: CoverageRelationStatistics Valid=399, Invalid=1083, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:28:01,358 INFO L146 ILogger]: Start difference. First operand 362 states and 366 transitions. Second operand 39 states. [2019-05-23 11:28:02,134 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:02,134 INFO L146 ILogger]: Finished difference Result 606 states and 614 transitions. [2019-05-23 11:28:02,134 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-05-23 11:28:02,134 INFO L146 ILogger]: Start accepts. Automaton has 39 states. Word has length 361 [2019-05-23 11:28:02,134 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:02,136 INFO L146 ILogger]: With dead ends: 606 [2019-05-23 11:28:02,136 INFO L146 ILogger]: Without dead ends: 374 [2019-05-23 11:28:02,138 INFO L146 ILogger]: 0 DeclaredPredicates, 431 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1660, Invalid=3596, Unknown=0, NotChecked=0, Total=5256 [2019-05-23 11:28:02,139 INFO L146 ILogger]: Start minimizeSevpa. Operand 374 states. [2019-05-23 11:28:02,143 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 374 to 369. [2019-05-23 11:28:02,143 INFO L146 ILogger]: Start removeUnreachable. Operand 369 states. [2019-05-23 11:28:02,144 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 369 states to 369 states and 373 transitions. [2019-05-23 11:28:02,144 INFO L146 ILogger]: Start accepts. Automaton has 369 states and 373 transitions. Word has length 361 [2019-05-23 11:28:02,145 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:02,145 INFO L146 ILogger]: Abstraction has 369 states and 373 transitions. [2019-05-23 11:28:02,145 INFO L146 ILogger]: Interpolant automaton has 39 states. [2019-05-23 11:28:02,145 INFO L146 ILogger]: Start isEmpty. Operand 369 states and 373 transitions. [2019-05-23 11:28:02,147 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 369 [2019-05-23 11:28:02,147 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:02,147 INFO L146 ILogger]: trace histogram [18, 18, 18, 18, 18, 18, 18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:02,147 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:02,148 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:02,148 INFO L146 ILogger]: Analyzing trace with hash -1087782532, now seen corresponding path program 17 times [2019-05-23 11:28:02,148 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:02,148 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:02,149 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:02,149 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:28:02,149 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:02,179 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:02,798 INFO L146 ILogger]: Checked inductivity of 1533 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-05-23 11:28:02,799 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:28:02,799 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:28:02,807 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:28:04,350 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2019-05-23 11:28:04,350 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:04,355 INFO L146 ILogger]: Trace formula consists of 552 conjuncts, 38 conjunts are in the unsatisfiable core [2019-05-23 11:28:04,360 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:28:04,637 INFO L146 ILogger]: Checked inductivity of 1533 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-05-23 11:28:04,657 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:28:04,658 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2019-05-23 11:28:04,658 INFO L146 ILogger]: Interpolant automaton has 41 states [2019-05-23 11:28:04,658 INFO L146 ILogger]: Constructing interpolant automaton starting with 41 interpolants. [2019-05-23 11:28:04,659 INFO L146 ILogger]: CoverageRelationStatistics Valid=440, Invalid=1200, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 11:28:04,659 INFO L146 ILogger]: Start difference. First operand 369 states and 373 transitions. Second operand 41 states. [2019-05-23 11:28:05,535 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:05,535 INFO L146 ILogger]: Finished difference Result 613 states and 621 transitions. [2019-05-23 11:28:05,536 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-05-23 11:28:05,536 INFO L146 ILogger]: Start accepts. Automaton has 41 states. Word has length 368 [2019-05-23 11:28:05,536 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:05,537 INFO L146 ILogger]: With dead ends: 613 [2019-05-23 11:28:05,538 INFO L146 ILogger]: Without dead ends: 381 [2019-05-23 11:28:05,541 INFO L146 ILogger]: 0 DeclaredPredicates, 442 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1847, Invalid=4005, Unknown=0, NotChecked=0, Total=5852 [2019-05-23 11:28:05,541 INFO L146 ILogger]: Start minimizeSevpa. Operand 381 states. [2019-05-23 11:28:05,546 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 381 to 376. [2019-05-23 11:28:05,546 INFO L146 ILogger]: Start removeUnreachable. Operand 376 states. [2019-05-23 11:28:05,547 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 376 states to 376 states and 380 transitions. [2019-05-23 11:28:05,547 INFO L146 ILogger]: Start accepts. Automaton has 376 states and 380 transitions. Word has length 368 [2019-05-23 11:28:05,547 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:05,547 INFO L146 ILogger]: Abstraction has 376 states and 380 transitions. [2019-05-23 11:28:05,547 INFO L146 ILogger]: Interpolant automaton has 41 states. [2019-05-23 11:28:05,547 INFO L146 ILogger]: Start isEmpty. Operand 376 states and 380 transitions. [2019-05-23 11:28:05,549 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 376 [2019-05-23 11:28:05,549 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:05,550 INFO L146 ILogger]: trace histogram [19, 19, 19, 19, 19, 19, 19, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:05,550 INFO L146 ILogger]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:05,550 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:05,551 INFO L146 ILogger]: Analyzing trace with hash 1934832198, now seen corresponding path program 18 times [2019-05-23 11:28:05,551 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:05,551 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:05,551 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:05,552 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:28:05,552 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:05,585 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:06,650 INFO L146 ILogger]: Checked inductivity of 1660 backedges. 0 proven. 1216 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-05-23 11:28:06,650 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:28:06,650 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:28:06,659 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:28:08,005 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2019-05-23 11:28:08,005 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:08,010 INFO L146 ILogger]: Trace formula consists of 492 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:28:08,012 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:28:08,351 INFO L146 ILogger]: Checked inductivity of 1660 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 1549 trivial. 0 not checked. [2019-05-23 11:28:08,372 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:28:08,372 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 15] total 54 [2019-05-23 11:28:08,373 INFO L146 ILogger]: Interpolant automaton has 54 states [2019-05-23 11:28:08,373 INFO L146 ILogger]: Constructing interpolant automaton starting with 54 interpolants. [2019-05-23 11:28:08,374 INFO L146 ILogger]: CoverageRelationStatistics Valid=502, Invalid=2360, Unknown=0, NotChecked=0, Total=2862 [2019-05-23 11:28:08,374 INFO L146 ILogger]: Start difference. First operand 376 states and 380 transitions. Second operand 54 states. [2019-05-23 11:28:11,644 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:11,644 INFO L146 ILogger]: Finished difference Result 656 states and 667 transitions. [2019-05-23 11:28:11,645 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2019-05-23 11:28:11,645 INFO L146 ILogger]: Start accepts. Automaton has 54 states. Word has length 375 [2019-05-23 11:28:11,645 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:11,647 INFO L146 ILogger]: With dead ends: 656 [2019-05-23 11:28:11,647 INFO L146 ILogger]: Without dead ends: 424 [2019-05-23 11:28:11,650 INFO L146 ILogger]: 0 DeclaredPredicates, 477 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2078 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2240, Invalid=8472, Unknown=0, NotChecked=0, Total=10712 [2019-05-23 11:28:11,650 INFO L146 ILogger]: Start minimizeSevpa. Operand 424 states. [2019-05-23 11:28:11,655 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 424 to 404. [2019-05-23 11:28:11,655 INFO L146 ILogger]: Start removeUnreachable. Operand 404 states. [2019-05-23 11:28:11,656 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 404 states to 404 states and 408 transitions. [2019-05-23 11:28:11,656 INFO L146 ILogger]: Start accepts. Automaton has 404 states and 408 transitions. Word has length 375 [2019-05-23 11:28:11,657 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:11,657 INFO L146 ILogger]: Abstraction has 404 states and 408 transitions. [2019-05-23 11:28:11,657 INFO L146 ILogger]: Interpolant automaton has 54 states. [2019-05-23 11:28:11,657 INFO L146 ILogger]: Start isEmpty. Operand 404 states and 408 transitions. [2019-05-23 11:28:11,659 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 404 [2019-05-23 11:28:11,659 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:11,659 INFO L146 ILogger]: trace histogram [20, 20, 20, 20, 20, 20, 20, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:11,660 INFO L146 ILogger]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:11,660 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:11,660 INFO L146 ILogger]: Analyzing trace with hash 313561627, now seen corresponding path program 19 times [2019-05-23 11:28:11,660 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:11,660 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:11,661 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:11,661 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:28:11,661 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:11,692 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:12,373 INFO L146 ILogger]: Checked inductivity of 1923 backedges. 0 proven. 1350 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2019-05-23 11:28:12,373 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:28:12,373 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:28:12,383 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:28:12,469 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:12,471 INFO L146 ILogger]: Trace formula consists of 602 conjuncts, 42 conjunts are in the unsatisfiable core [2019-05-23 11:28:12,475 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:28:12,706 INFO L146 ILogger]: Checked inductivity of 1923 backedges. 0 proven. 1350 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2019-05-23 11:28:12,736 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:28:12,737 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2019-05-23 11:28:12,737 INFO L146 ILogger]: Interpolant automaton has 45 states [2019-05-23 11:28:12,738 INFO L146 ILogger]: Constructing interpolant automaton starting with 45 interpolants. [2019-05-23 11:28:12,738 INFO L146 ILogger]: CoverageRelationStatistics Valid=528, Invalid=1452, Unknown=0, NotChecked=0, Total=1980 [2019-05-23 11:28:12,738 INFO L146 ILogger]: Start difference. First operand 404 states and 408 transitions. Second operand 45 states. [2019-05-23 11:28:13,905 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:13,905 INFO L146 ILogger]: Finished difference Result 669 states and 677 transitions. [2019-05-23 11:28:13,907 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-05-23 11:28:13,907 INFO L146 ILogger]: Start accepts. Automaton has 45 states. Word has length 403 [2019-05-23 11:28:13,907 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:13,908 INFO L146 ILogger]: With dead ends: 669 [2019-05-23 11:28:13,908 INFO L146 ILogger]: Without dead ends: 416 [2019-05-23 11:28:13,910 INFO L146 ILogger]: 0 DeclaredPredicates, 485 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2251, Invalid=4889, Unknown=0, NotChecked=0, Total=7140 [2019-05-23 11:28:13,910 INFO L146 ILogger]: Start minimizeSevpa. Operand 416 states. [2019-05-23 11:28:13,915 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 416 to 411. [2019-05-23 11:28:13,915 INFO L146 ILogger]: Start removeUnreachable. Operand 411 states. [2019-05-23 11:28:13,916 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 411 states to 411 states and 415 transitions. [2019-05-23 11:28:13,916 INFO L146 ILogger]: Start accepts. Automaton has 411 states and 415 transitions. Word has length 403 [2019-05-23 11:28:13,917 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:13,917 INFO L146 ILogger]: Abstraction has 411 states and 415 transitions. [2019-05-23 11:28:13,917 INFO L146 ILogger]: Interpolant automaton has 45 states. [2019-05-23 11:28:13,917 INFO L146 ILogger]: Start isEmpty. Operand 411 states and 415 transitions. [2019-05-23 11:28:13,919 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 411 [2019-05-23 11:28:13,919 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:13,920 INFO L146 ILogger]: trace histogram [21, 21, 21, 21, 21, 21, 21, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:13,920 INFO L146 ILogger]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:13,920 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:13,920 INFO L146 ILogger]: Analyzing trace with hash 1215536401, now seen corresponding path program 20 times [2019-05-23 11:28:13,920 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:13,921 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:13,921 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:13,921 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:28:13,922 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:13,949 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:14,751 INFO L146 ILogger]: Checked inductivity of 2064 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2019-05-23 11:28:14,751 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:28:14,751 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:28:14,759 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:28:14,854 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:28:14,854 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:14,857 INFO L146 ILogger]: Trace formula consists of 612 conjuncts, 44 conjunts are in the unsatisfiable core [2019-05-23 11:28:14,862 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:28:15,160 INFO L146 ILogger]: Checked inductivity of 2064 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2019-05-23 11:28:15,189 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:28:15,189 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2019-05-23 11:28:15,190 INFO L146 ILogger]: Interpolant automaton has 47 states [2019-05-23 11:28:15,190 INFO L146 ILogger]: Constructing interpolant automaton starting with 47 interpolants. [2019-05-23 11:28:15,191 INFO L146 ILogger]: CoverageRelationStatistics Valid=575, Invalid=1587, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 11:28:15,191 INFO L146 ILogger]: Start difference. First operand 411 states and 415 transitions. Second operand 47 states. [2019-05-23 11:28:16,287 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:16,287 INFO L146 ILogger]: Finished difference Result 676 states and 684 transitions. [2019-05-23 11:28:16,288 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-05-23 11:28:16,288 INFO L146 ILogger]: Start accepts. Automaton has 47 states. Word has length 410 [2019-05-23 11:28:16,288 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:16,289 INFO L146 ILogger]: With dead ends: 676 [2019-05-23 11:28:16,289 INFO L146 ILogger]: Without dead ends: 423 [2019-05-23 11:28:16,290 INFO L146 ILogger]: 0 DeclaredPredicates, 496 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1479 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2468, Invalid=5364, Unknown=0, NotChecked=0, Total=7832 [2019-05-23 11:28:16,291 INFO L146 ILogger]: Start minimizeSevpa. Operand 423 states. [2019-05-23 11:28:16,295 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 423 to 418. [2019-05-23 11:28:16,296 INFO L146 ILogger]: Start removeUnreachable. Operand 418 states. [2019-05-23 11:28:16,296 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 418 states to 418 states and 422 transitions. [2019-05-23 11:28:16,296 INFO L146 ILogger]: Start accepts. Automaton has 418 states and 422 transitions. Word has length 410 [2019-05-23 11:28:16,297 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:16,297 INFO L146 ILogger]: Abstraction has 418 states and 422 transitions. [2019-05-23 11:28:16,297 INFO L146 ILogger]: Interpolant automaton has 47 states. [2019-05-23 11:28:16,297 INFO L146 ILogger]: Start isEmpty. Operand 418 states and 422 transitions. [2019-05-23 11:28:16,299 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 418 [2019-05-23 11:28:16,299 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:16,300 INFO L146 ILogger]: trace histogram [22, 22, 22, 22, 22, 22, 22, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:16,300 INFO L146 ILogger]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:16,300 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:16,301 INFO L146 ILogger]: Analyzing trace with hash 1064464731, now seen corresponding path program 21 times [2019-05-23 11:28:16,301 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:16,301 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:16,302 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:16,302 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:28:16,302 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:16,339 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:18,182 INFO L146 ILogger]: Checked inductivity of 2212 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2019-05-23 11:28:18,183 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:28:18,183 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:28:18,192 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:28:18,397 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2019-05-23 11:28:18,397 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:18,399 INFO L146 ILogger]: Trace formula consists of 432 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:28:18,402 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:28:18,778 INFO L146 ILogger]: Checked inductivity of 2212 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 2101 trivial. 0 not checked. [2019-05-23 11:28:18,797 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:28:18,798 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 15] total 60 [2019-05-23 11:28:18,798 INFO L146 ILogger]: Interpolant automaton has 60 states [2019-05-23 11:28:18,799 INFO L146 ILogger]: Constructing interpolant automaton starting with 60 interpolants. [2019-05-23 11:28:18,799 INFO L146 ILogger]: CoverageRelationStatistics Valid=637, Invalid=2903, Unknown=0, NotChecked=0, Total=3540 [2019-05-23 11:28:18,799 INFO L146 ILogger]: Start difference. First operand 418 states and 422 transitions. Second operand 60 states. [2019-05-23 11:28:20,560 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:20,560 INFO L146 ILogger]: Finished difference Result 695 states and 704 transitions. [2019-05-23 11:28:20,560 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2019-05-23 11:28:20,561 INFO L146 ILogger]: Start accepts. Automaton has 60 states. Word has length 417 [2019-05-23 11:28:20,561 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:20,563 INFO L146 ILogger]: With dead ends: 695 [2019-05-23 11:28:20,563 INFO L146 ILogger]: Without dead ends: 442 [2019-05-23 11:28:20,565 INFO L146 ILogger]: 0 DeclaredPredicates, 519 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2591 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2885, Invalid=10455, Unknown=0, NotChecked=0, Total=13340 [2019-05-23 11:28:20,566 INFO L146 ILogger]: Start minimizeSevpa. Operand 442 states. [2019-05-23 11:28:20,570 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 442 to 432. [2019-05-23 11:28:20,570 INFO L146 ILogger]: Start removeUnreachable. Operand 432 states. [2019-05-23 11:28:20,571 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 432 states to 432 states and 436 transitions. [2019-05-23 11:28:20,572 INFO L146 ILogger]: Start accepts. Automaton has 432 states and 436 transitions. Word has length 417 [2019-05-23 11:28:20,572 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:20,572 INFO L146 ILogger]: Abstraction has 432 states and 436 transitions. [2019-05-23 11:28:20,572 INFO L146 ILogger]: Interpolant automaton has 60 states. [2019-05-23 11:28:20,572 INFO L146 ILogger]: Start isEmpty. Operand 432 states and 436 transitions. [2019-05-23 11:28:20,575 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 432 [2019-05-23 11:28:20,575 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:20,575 INFO L146 ILogger]: trace histogram [23, 23, 23, 23, 23, 23, 23, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:20,576 INFO L146 ILogger]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:20,576 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:20,576 INFO L146 ILogger]: Analyzing trace with hash -1332457732, now seen corresponding path program 22 times [2019-05-23 11:28:20,576 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:20,576 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:20,577 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:20,577 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:28:20,577 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:20,609 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:21,559 INFO L146 ILogger]: Checked inductivity of 2410 backedges. 0 proven. 1794 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2019-05-23 11:28:21,560 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:28:21,560 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:28:21,568 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:28:21,964 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:28:21,964 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:28:21,967 INFO L146 ILogger]: Trace formula consists of 642 conjuncts, 48 conjunts are in the unsatisfiable core [2019-05-23 11:28:21,971 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:28:22,158 INFO L146 ILogger]: Checked inductivity of 2410 backedges. 0 proven. 1794 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2019-05-23 11:28:22,178 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:28:22,178 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2019-05-23 11:28:22,179 INFO L146 ILogger]: Interpolant automaton has 51 states [2019-05-23 11:28:22,179 INFO L146 ILogger]: Constructing interpolant automaton starting with 51 interpolants. [2019-05-23 11:28:22,180 INFO L146 ILogger]: CoverageRelationStatistics Valid=675, Invalid=1875, Unknown=0, NotChecked=0, Total=2550 [2019-05-23 11:28:22,180 INFO L146 ILogger]: Start difference. First operand 432 states and 436 transitions. Second operand 51 states. [2019-05-23 11:28:23,433 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:28:23,433 INFO L146 ILogger]: Finished difference Result 704 states and 712 transitions. [2019-05-23 11:28:23,434 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2019-05-23 11:28:23,434 INFO L146 ILogger]: Start accepts. Automaton has 51 states. Word has length 431 [2019-05-23 11:28:23,434 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:28:23,435 INFO L146 ILogger]: With dead ends: 704 [2019-05-23 11:28:23,436 INFO L146 ILogger]: Without dead ends: 444 [2019-05-23 11:28:23,437 INFO L146 ILogger]: 0 DeclaredPredicates, 525 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1759 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2932, Invalid=6380, Unknown=0, NotChecked=0, Total=9312 [2019-05-23 11:28:23,438 INFO L146 ILogger]: Start minimizeSevpa. Operand 444 states. [2019-05-23 11:28:23,442 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 444 to 439. [2019-05-23 11:28:23,442 INFO L146 ILogger]: Start removeUnreachable. Operand 439 states. [2019-05-23 11:28:23,443 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 439 states to 439 states and 443 transitions. [2019-05-23 11:28:23,443 INFO L146 ILogger]: Start accepts. Automaton has 439 states and 443 transitions. Word has length 431 [2019-05-23 11:28:23,444 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:28:23,444 INFO L146 ILogger]: Abstraction has 439 states and 443 transitions. [2019-05-23 11:28:23,444 INFO L146 ILogger]: Interpolant automaton has 51 states. [2019-05-23 11:28:23,444 INFO L146 ILogger]: Start isEmpty. Operand 439 states and 443 transitions. [2019-05-23 11:28:23,446 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 439 [2019-05-23 11:28:23,447 INFO L146 ILogger]: Found error trace [2019-05-23 11:28:23,447 INFO L146 ILogger]: trace histogram [24, 24, 24, 24, 24, 24, 24, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:23,447 INFO L146 ILogger]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:28:23,447 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:28:23,448 INFO L146 ILogger]: Analyzing trace with hash 1166666994, now seen corresponding path program 23 times [2019-05-23 11:28:23,448 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:28:23,448 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:28:23,449 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:23,451 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:28:23,451 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:28:23,482 INFO L146 ILogger]: Conjunction of SSA is unsat