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-industry-pattern/array_ptr_single_elem_init_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:22:26,971 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:22:26,974 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:22:26,986 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:22:26,986 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:22:26,987 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:22:26,989 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:22:26,991 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:22:26,993 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:22:26,994 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:22:26,995 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:22:26,996 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:22:26,997 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:22:26,998 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:22:26,999 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:22:27,000 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:22:27,001 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:22:27,004 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:22:27,008 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:22:27,012 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:22:27,016 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:22:27,022 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:22:27,027 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:22:27,027 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:22:27,027 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:22:27,028 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:22:27,031 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:22:27,033 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:22:27,033 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:22:27,037 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:22:27,039 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:22:27,040 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:22:27,043 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:22:27,043 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:22:27,044 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:22:27,045 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:22:27,045 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:22:27,046 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:22:27,047 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:22:27,049 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:22:27,074 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:22:27,075 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:22:27,076 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:22:27,076 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:22:27,076 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:22:27,077 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:22:27,077 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:22:27,077 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:22:27,077 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:22:27,078 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:22:27,078 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:22:27,078 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:22:27,078 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:22:27,078 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:22:27,079 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:22:27,079 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:22:27,079 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:22:27,079 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:22:27,079 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:22:27,080 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:22:27,080 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:22:27,080 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:22:27,080 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:22:27,081 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:22:27,081 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:22:27,081 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:22:27,081 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:22:27,081 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:22:27,082 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 11:22:27,114 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:22:27,131 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:22:27,137 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:22:27,139 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:22:27,139 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:22:27,140 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-industry-pattern/array_ptr_single_elem_init_true-unreach-call.i [2019-05-23 11:22:27,202 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc50f9d/5a8550d02283464aa63937361b4dcf87/FLAG1fd90226a [2019-05-23 11:22:27,710 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:22:27,711 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-industry-pattern/array_ptr_single_elem_init_true-unreach-call.i [2019-05-23 11:22:27,717 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc50f9d/5a8550d02283464aa63937361b4dcf87/FLAG1fd90226a [2019-05-23 11:22:28,035 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc50f9d/5a8550d02283464aa63937361b4dcf87 [2019-05-23 11:22:28,046 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:22:28,048 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:22:28,049 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:28,049 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:22:28,054 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:22:28,055 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,058 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a625f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28, skipping insertion in model container [2019-05-23 11:22:28,058 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,066 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:22:28,086 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:22:28,276 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:28,297 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:22:28,328 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:28,356 INFO L146 ILogger]: Completed translation [2019-05-23 11:22:28,357 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28 WrapperNode [2019-05-23 11:22:28,357 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:28,358 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:28,358 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:22:28,359 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:22:28,369 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,379 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,401 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:28,401 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:22:28,402 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:22:28,402 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:22:28,410 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,411 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,413 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,414 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,421 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,520 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,522 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (1/1) ... [2019-05-23 11:22:28,525 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:22:28,526 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:22:28,526 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:22:28,526 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:22:28,527 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (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 11:22:28,582 INFO L146 ILogger]: Found specification of procedure read~$Pointer$ [2019-05-23 11:22:28,583 INFO L146 ILogger]: Found specification of procedure write~$Pointer$ [2019-05-23 11:22:28,583 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:22:28,583 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:22:28,583 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnHeap [2019-05-23 11:22:28,583 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:22:28,583 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:22:28,584 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:22:29,102 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:22:29,103 INFO L146 ILogger]: Removed 8 assume(true) statements. [2019-05-23 11:22:29,104 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:29 BoogieIcfgContainer [2019-05-23 11:22:29,104 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:22:29,105 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:22:29,105 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:22:29,109 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:22:29,109 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:22:28" (1/3) ... [2019-05-23 11:22:29,110 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61de1645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:29, skipping insertion in model container [2019-05-23 11:22:29,110 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:28" (2/3) ... [2019-05-23 11:22:29,110 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61de1645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:29, skipping insertion in model container [2019-05-23 11:22:29,111 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:29" (3/3) ... [2019-05-23 11:22:29,112 INFO L146 ILogger]: Analyzing ICFG array_ptr_single_elem_init_true-unreach-call.i [2019-05-23 11:22:29,123 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:22:29,133 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:22:29,151 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:22:29,178 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:22:29,178 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:22:29,179 INFO L146 ILogger]: Hoare is true [2019-05-23 11:22:29,179 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:22:29,179 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:22:29,179 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:22:29,180 INFO L146 ILogger]: Difference is false [2019-05-23 11:22:29,180 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:22:29,180 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:22:29,195 INFO L146 ILogger]: Start isEmpty. Operand 60 states. [2019-05-23 11:22:29,202 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 28 [2019-05-23 11:22:29,202 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:29,203 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] [2019-05-23 11:22:29,206 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:29,211 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:29,211 INFO L146 ILogger]: Analyzing trace with hash 1638305477, now seen corresponding path program 1 times [2019-05-23 11:22:29,213 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:29,214 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:29,255 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:29,255 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:29,255 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:29,303 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:29,357 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 11:22:29,360 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:29,360 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:22:29,364 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:22:29,375 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:22:29,376 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:22:29,378 INFO L146 ILogger]: Start difference. First operand 60 states. Second operand 2 states. [2019-05-23 11:22:29,395 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:29,395 INFO L146 ILogger]: Finished difference Result 91 states and 104 transitions. [2019-05-23 11:22:29,395 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:22:29,397 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 27 [2019-05-23 11:22:29,397 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:29,407 INFO L146 ILogger]: With dead ends: 91 [2019-05-23 11:22:29,408 INFO L146 ILogger]: Without dead ends: 56 [2019-05-23 11:22:29,411 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:22:29,426 INFO L146 ILogger]: Start minimizeSevpa. Operand 56 states. [2019-05-23 11:22:29,440 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-05-23 11:22:29,441 INFO L146 ILogger]: Start removeUnreachable. Operand 56 states. [2019-05-23 11:22:29,443 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2019-05-23 11:22:29,444 INFO L146 ILogger]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 27 [2019-05-23 11:22:29,445 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:29,445 INFO L146 ILogger]: Abstraction has 56 states and 62 transitions. [2019-05-23 11:22:29,445 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:22:29,445 INFO L146 ILogger]: Start isEmpty. Operand 56 states and 62 transitions. [2019-05-23 11:22:29,446 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 28 [2019-05-23 11:22:29,446 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:29,447 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] [2019-05-23 11:22:29,447 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:29,447 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:29,447 INFO L146 ILogger]: Analyzing trace with hash 1057441949, now seen corresponding path program 1 times [2019-05-23 11:22:29,447 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:29,448 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:29,449 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:29,449 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:29,449 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:29,468 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:29,518 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 11:22:29,519 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:29,519 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:22:29,521 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:22:29,522 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:22:29,522 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:29,523 INFO L146 ILogger]: Start difference. First operand 56 states and 62 transitions. Second operand 3 states. [2019-05-23 11:22:29,714 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:29,715 INFO L146 ILogger]: Finished difference Result 126 states and 140 transitions. [2019-05-23 11:22:29,716 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:22:29,716 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 27 [2019-05-23 11:22:29,716 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:29,719 INFO L146 ILogger]: With dead ends: 126 [2019-05-23 11:22:29,719 INFO L146 ILogger]: Without dead ends: 99 [2019-05-23 11:22:29,721 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 11:22:29,722 INFO L146 ILogger]: Start minimizeSevpa. Operand 99 states. [2019-05-23 11:22:29,728 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 99 to 57. [2019-05-23 11:22:29,728 INFO L146 ILogger]: Start removeUnreachable. Operand 57 states. [2019-05-23 11:22:29,730 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2019-05-23 11:22:29,730 INFO L146 ILogger]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 27 [2019-05-23 11:22:29,730 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:29,731 INFO L146 ILogger]: Abstraction has 57 states and 63 transitions. [2019-05-23 11:22:29,731 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:22:29,731 INFO L146 ILogger]: Start isEmpty. Operand 57 states and 63 transitions. [2019-05-23 11:22:29,732 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:22:29,733 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:29,733 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] [2019-05-23 11:22:29,733 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:29,733 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:29,734 INFO L146 ILogger]: Analyzing trace with hash 968129504, now seen corresponding path program 1 times [2019-05-23 11:22:29,734 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:29,734 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:29,735 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:29,736 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:29,736 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:29,764 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:30,039 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 11:22:30,040 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:30,040 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 11:22:30,057 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:30,124 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:30,126 INFO L146 ILogger]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:22:30,136 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:30,172 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 11:22:30,202 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:30,203 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:22:30,203 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:30,204 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:30,204 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:30,204 INFO L146 ILogger]: Start difference. First operand 57 states and 63 transitions. Second operand 6 states. [2019-05-23 11:22:30,751 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:30,752 INFO L146 ILogger]: Finished difference Result 149 states and 168 transitions. [2019-05-23 11:22:30,752 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:22:30,753 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 38 [2019-05-23 11:22:30,753 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:30,755 INFO L146 ILogger]: With dead ends: 149 [2019-05-23 11:22:30,756 INFO L146 ILogger]: Without dead ends: 122 [2019-05-23 11:22:30,757 INFO L146 ILogger]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:30,757 INFO L146 ILogger]: Start minimizeSevpa. Operand 122 states. [2019-05-23 11:22:30,765 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 122 to 79. [2019-05-23 11:22:30,765 INFO L146 ILogger]: Start removeUnreachable. Operand 79 states. [2019-05-23 11:22:30,767 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2019-05-23 11:22:30,767 INFO L146 ILogger]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 38 [2019-05-23 11:22:30,768 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:30,768 INFO L146 ILogger]: Abstraction has 79 states and 88 transitions. [2019-05-23 11:22:30,768 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:30,768 INFO L146 ILogger]: Start isEmpty. Operand 79 states and 88 transitions. [2019-05-23 11:22:30,770 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 52 [2019-05-23 11:22:30,770 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:30,770 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:22:30,771 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:30,771 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:30,771 INFO L146 ILogger]: Analyzing trace with hash 746945888, now seen corresponding path program 1 times [2019-05-23 11:22:30,771 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:30,772 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:30,773 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:30,773 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:30,773 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:30,805 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:30,976 INFO L146 ILogger]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:30,976 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:30,977 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 11:22:30,997 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:31,036 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:31,038 INFO L146 ILogger]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:31,041 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:31,160 INFO L146 ILogger]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:31,190 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:31,191 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-05-23 11:22:31,191 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:31,192 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:31,192 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:31,193 INFO L146 ILogger]: Start difference. First operand 79 states and 88 transitions. Second operand 9 states. [2019-05-23 11:22:32,130 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:32,131 INFO L146 ILogger]: Finished difference Result 171 states and 191 transitions. [2019-05-23 11:22:32,131 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:32,132 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 51 [2019-05-23 11:22:32,132 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:32,133 INFO L146 ILogger]: With dead ends: 171 [2019-05-23 11:22:32,134 INFO L146 ILogger]: Without dead ends: 143 [2019-05-23 11:22:32,134 INFO L146 ILogger]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:32,135 INFO L146 ILogger]: Start minimizeSevpa. Operand 143 states. [2019-05-23 11:22:32,143 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 143 to 100. [2019-05-23 11:22:32,143 INFO L146 ILogger]: Start removeUnreachable. Operand 100 states. [2019-05-23 11:22:32,144 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2019-05-23 11:22:32,144 INFO L146 ILogger]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 51 [2019-05-23 11:22:32,145 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:32,145 INFO L146 ILogger]: Abstraction has 100 states and 112 transitions. [2019-05-23 11:22:32,145 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:32,145 INFO L146 ILogger]: Start isEmpty. Operand 100 states and 112 transitions. [2019-05-23 11:22:32,147 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:22:32,148 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:32,148 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:22:32,148 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:32,148 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:32,149 INFO L146 ILogger]: Analyzing trace with hash 1747834787, now seen corresponding path program 2 times [2019-05-23 11:22:32,152 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:32,152 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:32,153 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:32,153 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:32,154 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:32,185 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:32,341 INFO L146 ILogger]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:32,341 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:32,342 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 11:22:32,360 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:32,416 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:32,416 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:32,419 INFO L146 ILogger]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:32,423 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:32,510 INFO L146 ILogger]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:32,529 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:32,529 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:22:32,530 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:32,530 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:32,530 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:32,531 INFO L146 ILogger]: Start difference. First operand 100 states and 112 transitions. Second operand 11 states. [2019-05-23 11:22:33,033 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:33,033 INFO L146 ILogger]: Finished difference Result 192 states and 215 transitions. [2019-05-23 11:22:33,034 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:33,034 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 62 [2019-05-23 11:22:33,034 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:33,035 INFO L146 ILogger]: With dead ends: 192 [2019-05-23 11:22:33,035 INFO L146 ILogger]: Without dead ends: 164 [2019-05-23 11:22:33,036 INFO L146 ILogger]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:33,037 INFO L146 ILogger]: Start minimizeSevpa. Operand 164 states. [2019-05-23 11:22:33,044 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 164 to 121. [2019-05-23 11:22:33,044 INFO L146 ILogger]: Start removeUnreachable. Operand 121 states. [2019-05-23 11:22:33,045 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2019-05-23 11:22:33,045 INFO L146 ILogger]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 62 [2019-05-23 11:22:33,046 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:33,046 INFO L146 ILogger]: Abstraction has 121 states and 136 transitions. [2019-05-23 11:22:33,046 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:33,046 INFO L146 ILogger]: Start isEmpty. Operand 121 states and 136 transitions. [2019-05-23 11:22:33,048 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 74 [2019-05-23 11:22:33,049 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:33,049 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:22:33,049 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:33,049 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:33,050 INFO L146 ILogger]: Analyzing trace with hash 1260881280, now seen corresponding path program 3 times [2019-05-23 11:22:33,050 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:33,050 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:33,051 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:33,051 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:33,051 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:33,090 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:33,272 INFO L146 ILogger]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:33,273 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:33,273 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 11:22:33,284 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:33,398 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-05-23 11:22:33,398 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:33,401 INFO L146 ILogger]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:22:33,405 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:33,703 INFO L146 ILogger]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:33,723 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:33,724 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2019-05-23 11:22:33,724 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:33,724 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:33,725 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:33,725 INFO L146 ILogger]: Start difference. First operand 121 states and 136 transitions. Second operand 13 states. [2019-05-23 11:22:34,124 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:34,125 INFO L146 ILogger]: Finished difference Result 213 states and 239 transitions. [2019-05-23 11:22:34,127 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:34,127 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 73 [2019-05-23 11:22:34,128 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:34,130 INFO L146 ILogger]: With dead ends: 213 [2019-05-23 11:22:34,130 INFO L146 ILogger]: Without dead ends: 185 [2019-05-23 11:22:34,131 INFO L146 ILogger]: 0 DeclaredPredicates, 91 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:22:34,132 INFO L146 ILogger]: Start minimizeSevpa. Operand 185 states. [2019-05-23 11:22:34,139 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 185 to 142. [2019-05-23 11:22:34,139 INFO L146 ILogger]: Start removeUnreachable. Operand 142 states. [2019-05-23 11:22:34,141 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 142 states to 142 states and 160 transitions. [2019-05-23 11:22:34,141 INFO L146 ILogger]: Start accepts. Automaton has 142 states and 160 transitions. Word has length 73 [2019-05-23 11:22:34,141 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:34,141 INFO L146 ILogger]: Abstraction has 142 states and 160 transitions. [2019-05-23 11:22:34,141 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:34,142 INFO L146 ILogger]: Start isEmpty. Operand 142 states and 160 transitions. [2019-05-23 11:22:34,144 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 85 [2019-05-23 11:22:34,145 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:34,145 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 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] [2019-05-23 11:22:34,145 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:34,145 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:34,146 INFO L146 ILogger]: Analyzing trace with hash -1280607357, now seen corresponding path program 4 times [2019-05-23 11:22:34,146 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:34,146 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:34,147 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:34,147 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:34,147 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:34,169 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:34,341 INFO L146 ILogger]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:34,342 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:34,342 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 11:22:34,352 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:34,391 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:34,392 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:34,393 INFO L146 ILogger]: Trace formula consists of 181 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:34,398 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:34,442 INFO L146 ILogger]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:34,464 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:34,464 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2019-05-23 11:22:34,465 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:22:34,465 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:22:34,465 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:34,466 INFO L146 ILogger]: Start difference. First operand 142 states and 160 transitions. Second operand 15 states. [2019-05-23 11:22:34,748 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:34,748 INFO L146 ILogger]: Finished difference Result 234 states and 263 transitions. [2019-05-23 11:22:34,748 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:34,748 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 84 [2019-05-23 11:22:34,749 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:34,750 INFO L146 ILogger]: With dead ends: 234 [2019-05-23 11:22:34,750 INFO L146 ILogger]: Without dead ends: 206 [2019-05-23 11:22:34,751 INFO L146 ILogger]: 0 DeclaredPredicates, 106 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=404, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:22:34,751 INFO L146 ILogger]: Start minimizeSevpa. Operand 206 states. [2019-05-23 11:22:34,757 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 206 to 163. [2019-05-23 11:22:34,758 INFO L146 ILogger]: Start removeUnreachable. Operand 163 states. [2019-05-23 11:22:34,759 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2019-05-23 11:22:34,759 INFO L146 ILogger]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 84 [2019-05-23 11:22:34,759 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:34,760 INFO L146 ILogger]: Abstraction has 163 states and 184 transitions. [2019-05-23 11:22:34,760 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:22:34,760 INFO L146 ILogger]: Start isEmpty. Operand 163 states and 184 transitions. [2019-05-23 11:22:34,763 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 96 [2019-05-23 11:22:34,763 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:34,763 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:22:34,764 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:34,764 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:34,764 INFO L146 ILogger]: Analyzing trace with hash -1220102752, now seen corresponding path program 5 times [2019-05-23 11:22:34,764 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:34,764 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:34,765 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:34,765 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:34,765 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:34,785 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:35,011 INFO L146 ILogger]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:35,012 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:35,012 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 11:22:35,023 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:35,162 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2019-05-23 11:22:35,162 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:35,164 INFO L146 ILogger]: Trace formula consists of 204 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:22:35,167 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:35,222 INFO L146 ILogger]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:35,243 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:35,243 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2019-05-23 11:22:35,243 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:22:35,243 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:22:35,244 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:35,244 INFO L146 ILogger]: Start difference. First operand 163 states and 184 transitions. Second operand 17 states. [2019-05-23 11:22:35,577 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:35,577 INFO L146 ILogger]: Finished difference Result 255 states and 287 transitions. [2019-05-23 11:22:35,578 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:22:35,578 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 95 [2019-05-23 11:22:35,579 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:35,580 INFO L146 ILogger]: With dead ends: 255 [2019-05-23 11:22:35,580 INFO L146 ILogger]: Without dead ends: 227 [2019-05-23 11:22:35,581 INFO L146 ILogger]: 0 DeclaredPredicates, 121 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:22:35,582 INFO L146 ILogger]: Start minimizeSevpa. Operand 227 states. [2019-05-23 11:22:35,589 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 227 to 184. [2019-05-23 11:22:35,589 INFO L146 ILogger]: Start removeUnreachable. Operand 184 states. [2019-05-23 11:22:35,591 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 184 states to 184 states and 208 transitions. [2019-05-23 11:22:35,591 INFO L146 ILogger]: Start accepts. Automaton has 184 states and 208 transitions. Word has length 95 [2019-05-23 11:22:35,592 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:35,592 INFO L146 ILogger]: Abstraction has 184 states and 208 transitions. [2019-05-23 11:22:35,592 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:22:35,592 INFO L146 ILogger]: Start isEmpty. Operand 184 states and 208 transitions. [2019-05-23 11:22:35,594 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 107 [2019-05-23 11:22:35,594 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:35,595 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:22:35,597 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:35,597 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:35,597 INFO L146 ILogger]: Analyzing trace with hash 325252963, now seen corresponding path program 6 times [2019-05-23 11:22:35,598 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:35,598 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:35,599 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:35,599 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:35,599 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:35,622 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:35,864 INFO L146 ILogger]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:35,864 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:35,864 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 11:22:35,874 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:36,029 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2019-05-23 11:22:36,029 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:36,030 INFO L146 ILogger]: Trace formula consists of 227 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:22:36,033 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:36,072 INFO L146 ILogger]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:36,092 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:36,092 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2019-05-23 11:22:36,093 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:22:36,093 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:22:36,093 INFO L146 ILogger]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:36,094 INFO L146 ILogger]: Start difference. First operand 184 states and 208 transitions. Second operand 19 states. [2019-05-23 11:22:36,724 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:36,724 INFO L146 ILogger]: Finished difference Result 276 states and 311 transitions. [2019-05-23 11:22:36,725 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:22:36,725 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 106 [2019-05-23 11:22:36,725 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:36,727 INFO L146 ILogger]: With dead ends: 276 [2019-05-23 11:22:36,727 INFO L146 ILogger]: Without dead ends: 248 [2019-05-23 11:22:36,728 INFO L146 ILogger]: 0 DeclaredPredicates, 136 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=716, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:22:36,729 INFO L146 ILogger]: Start minimizeSevpa. Operand 248 states. [2019-05-23 11:22:36,734 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 248 to 205. [2019-05-23 11:22:36,734 INFO L146 ILogger]: Start removeUnreachable. Operand 205 states. [2019-05-23 11:22:36,735 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 205 states to 205 states and 232 transitions. [2019-05-23 11:22:36,735 INFO L146 ILogger]: Start accepts. Automaton has 205 states and 232 transitions. Word has length 106 [2019-05-23 11:22:36,736 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:36,736 INFO L146 ILogger]: Abstraction has 205 states and 232 transitions. [2019-05-23 11:22:36,736 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:22:36,736 INFO L146 ILogger]: Start isEmpty. Operand 205 states and 232 transitions. [2019-05-23 11:22:36,738 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 118 [2019-05-23 11:22:36,738 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:36,739 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 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 11:22:36,739 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:36,739 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:36,739 INFO L146 ILogger]: Analyzing trace with hash 1159007680, now seen corresponding path program 7 times [2019-05-23 11:22:36,739 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:36,740 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:36,743 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:36,744 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:36,744 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:36,768 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:37,047 INFO L146 ILogger]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:37,047 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:37,047 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:22:37,058 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:37,104 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:37,105 INFO L146 ILogger]: Trace formula consists of 250 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:22:37,108 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:37,162 INFO L146 ILogger]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:37,182 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:37,182 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2019-05-23 11:22:37,182 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:22:37,183 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:22:37,184 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:22:37,184 INFO L146 ILogger]: Start difference. First operand 205 states and 232 transitions. Second operand 21 states. [2019-05-23 11:22:37,520 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:37,520 INFO L146 ILogger]: Finished difference Result 297 states and 335 transitions. [2019-05-23 11:22:37,521 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:22:37,521 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 117 [2019-05-23 11:22:37,521 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:37,524 INFO L146 ILogger]: With dead ends: 297 [2019-05-23 11:22:37,524 INFO L146 ILogger]: Without dead ends: 269 [2019-05-23 11:22:37,526 INFO L146 ILogger]: 0 DeclaredPredicates, 151 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=427, Invalid=905, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:22:37,526 INFO L146 ILogger]: Start minimizeSevpa. Operand 269 states. [2019-05-23 11:22:37,531 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 269 to 226. [2019-05-23 11:22:37,532 INFO L146 ILogger]: Start removeUnreachable. Operand 226 states. [2019-05-23 11:22:37,533 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 226 states to 226 states and 256 transitions. [2019-05-23 11:22:37,533 INFO L146 ILogger]: Start accepts. Automaton has 226 states and 256 transitions. Word has length 117 [2019-05-23 11:22:37,533 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:37,533 INFO L146 ILogger]: Abstraction has 226 states and 256 transitions. [2019-05-23 11:22:37,534 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:22:37,534 INFO L146 ILogger]: Start isEmpty. Operand 226 states and 256 transitions. [2019-05-23 11:22:37,536 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 129 [2019-05-23 11:22:37,536 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:37,536 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 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 11:22:37,536 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:37,537 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:37,537 INFO L146 ILogger]: Analyzing trace with hash 2145536835, now seen corresponding path program 8 times [2019-05-23 11:22:37,537 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:37,537 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:37,538 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:37,538 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:37,539 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:37,560 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:37,806 INFO L146 ILogger]: Checked inductivity of 405 backedges. 0 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:37,806 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:37,806 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 11:22:37,815 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:37,860 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:37,861 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:37,862 INFO L146 ILogger]: Trace formula consists of 273 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:22:37,865 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:37,936 INFO L146 ILogger]: Checked inductivity of 405 backedges. 0 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:37,956 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:37,957 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2019-05-23 11:22:37,957 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:22:37,957 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:22:37,958 INFO L146 ILogger]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:22:37,958 INFO L146 ILogger]: Start difference. First operand 226 states and 256 transitions. Second operand 23 states. [2019-05-23 11:22:38,599 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:38,599 INFO L146 ILogger]: Finished difference Result 318 states and 359 transitions. [2019-05-23 11:22:38,599 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:22:38,599 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 128 [2019-05-23 11:22:38,600 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:38,601 INFO L146 ILogger]: With dead ends: 318 [2019-05-23 11:22:38,601 INFO L146 ILogger]: Without dead ends: 290 [2019-05-23 11:22:38,602 INFO L146 ILogger]: 0 DeclaredPredicates, 166 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 11:22:38,603 INFO L146 ILogger]: Start minimizeSevpa. Operand 290 states. [2019-05-23 11:22:38,608 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 290 to 247. [2019-05-23 11:22:38,608 INFO L146 ILogger]: Start removeUnreachable. Operand 247 states. [2019-05-23 11:22:38,609 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 247 states to 247 states and 280 transitions. [2019-05-23 11:22:38,609 INFO L146 ILogger]: Start accepts. Automaton has 247 states and 280 transitions. Word has length 128 [2019-05-23 11:22:38,609 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:38,610 INFO L146 ILogger]: Abstraction has 247 states and 280 transitions. [2019-05-23 11:22:38,610 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:22:38,610 INFO L146 ILogger]: Start isEmpty. Operand 247 states and 280 transitions. [2019-05-23 11:22:38,611 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 140 [2019-05-23 11:22:38,611 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:38,612 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 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 11:22:38,612 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:38,612 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:38,612 INFO L146 ILogger]: Analyzing trace with hash -1220244000, now seen corresponding path program 9 times [2019-05-23 11:22:38,613 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:38,613 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:38,614 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:38,614 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:38,614 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:38,633 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:39,025 INFO L146 ILogger]: Checked inductivity of 505 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:39,025 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:39,025 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 11:22:39,036 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:39,788 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-05-23 11:22:39,788 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:39,791 INFO L146 ILogger]: Trace formula consists of 296 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 11:22:39,793 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:39,853 INFO L146 ILogger]: Checked inductivity of 505 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:39,875 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:39,875 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2019-05-23 11:22:39,875 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 11:22:39,876 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 11:22:39,876 INFO L146 ILogger]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:22:39,876 INFO L146 ILogger]: Start difference. First operand 247 states and 280 transitions. Second operand 25 states. [2019-05-23 11:22:40,380 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:40,380 INFO L146 ILogger]: Finished difference Result 339 states and 383 transitions. [2019-05-23 11:22:40,380 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-05-23 11:22:40,381 INFO L146 ILogger]: Start accepts. Automaton has 25 states. Word has length 139 [2019-05-23 11:22:40,381 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:40,383 INFO L146 ILogger]: With dead ends: 339 [2019-05-23 11:22:40,383 INFO L146 ILogger]: Without dead ends: 311 [2019-05-23 11:22:40,385 INFO L146 ILogger]: 0 DeclaredPredicates, 181 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=631, Invalid=1349, Unknown=0, NotChecked=0, Total=1980 [2019-05-23 11:22:40,385 INFO L146 ILogger]: Start minimizeSevpa. Operand 311 states. [2019-05-23 11:22:40,389 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 311 to 268. [2019-05-23 11:22:40,390 INFO L146 ILogger]: Start removeUnreachable. Operand 268 states. [2019-05-23 11:22:40,391 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 268 states to 268 states and 304 transitions. [2019-05-23 11:22:40,391 INFO L146 ILogger]: Start accepts. Automaton has 268 states and 304 transitions. Word has length 139 [2019-05-23 11:22:40,391 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:40,391 INFO L146 ILogger]: Abstraction has 268 states and 304 transitions. [2019-05-23 11:22:40,392 INFO L146 ILogger]: Interpolant automaton has 25 states. [2019-05-23 11:22:40,392 INFO L146 ILogger]: Start isEmpty. Operand 268 states and 304 transitions. [2019-05-23 11:22:40,393 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 151 [2019-05-23 11:22:40,393 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:40,394 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 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 11:22:40,394 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:40,394 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:40,394 INFO L146 ILogger]: Analyzing trace with hash -214468829, now seen corresponding path program 10 times [2019-05-23 11:22:40,394 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:40,395 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:40,395 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:40,396 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:40,396 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:40,413 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:41,852 INFO L146 ILogger]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:41,852 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:41,852 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 11:22:41,861 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:41,996 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:41,997 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:41,999 INFO L146 ILogger]: Trace formula consists of 319 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:22:42,001 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:42,062 INFO L146 ILogger]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:42,086 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:42,086 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2019-05-23 11:22:42,086 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:22:42,087 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:22:42,087 INFO L146 ILogger]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:22:42,087 INFO L146 ILogger]: Start difference. First operand 268 states and 304 transitions. Second operand 27 states. [2019-05-23 11:22:42,867 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:42,867 INFO L146 ILogger]: Finished difference Result 360 states and 407 transitions. [2019-05-23 11:22:42,868 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:22:42,868 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 150 [2019-05-23 11:22:42,869 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:42,870 INFO L146 ILogger]: With dead ends: 360 [2019-05-23 11:22:42,870 INFO L146 ILogger]: Without dead ends: 332 [2019-05-23 11:22:42,871 INFO L146 ILogger]: 0 DeclaredPredicates, 196 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=748, Invalid=1604, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:22:42,872 INFO L146 ILogger]: Start minimizeSevpa. Operand 332 states. [2019-05-23 11:22:42,876 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 332 to 289. [2019-05-23 11:22:42,877 INFO L146 ILogger]: Start removeUnreachable. Operand 289 states. [2019-05-23 11:22:42,878 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 289 states to 289 states and 328 transitions. [2019-05-23 11:22:42,878 INFO L146 ILogger]: Start accepts. Automaton has 289 states and 328 transitions. Word has length 150 [2019-05-23 11:22:42,878 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:42,878 INFO L146 ILogger]: Abstraction has 289 states and 328 transitions. [2019-05-23 11:22:42,878 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:22:42,879 INFO L146 ILogger]: Start isEmpty. Operand 289 states and 328 transitions. [2019-05-23 11:22:42,880 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 162 [2019-05-23 11:22:42,880 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:42,880 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 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 11:22:42,881 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:42,881 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:42,881 INFO L146 ILogger]: Analyzing trace with hash -553175552, now seen corresponding path program 11 times [2019-05-23 11:22:42,881 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:42,881 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:42,882 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,882 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:42,882 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,902 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:43,270 INFO L146 ILogger]: Checked inductivity of 738 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:43,271 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:43,271 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 11:22:43,280 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:47,166 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2019-05-23 11:22:47,166 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:47,171 INFO L146 ILogger]: Trace formula consists of 342 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:22:47,174 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:47,418 INFO L146 ILogger]: Checked inductivity of 738 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:47,439 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:47,440 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2019-05-23 11:22:47,440 INFO L146 ILogger]: Interpolant automaton has 29 states [2019-05-23 11:22:47,440 INFO L146 ILogger]: Constructing interpolant automaton starting with 29 interpolants. [2019-05-23 11:22:47,441 INFO L146 ILogger]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:22:47,441 INFO L146 ILogger]: Start difference. First operand 289 states and 328 transitions. Second operand 29 states. [2019-05-23 11:22:48,585 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:48,585 INFO L146 ILogger]: Finished difference Result 381 states and 431 transitions. [2019-05-23 11:22:48,586 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-05-23 11:22:48,586 INFO L146 ILogger]: Start accepts. Automaton has 29 states. Word has length 161 [2019-05-23 11:22:48,586 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:48,588 INFO L146 ILogger]: With dead ends: 381 [2019-05-23 11:22:48,589 INFO L146 ILogger]: Without dead ends: 353 [2019-05-23 11:22:48,591 INFO L146 ILogger]: 0 DeclaredPredicates, 211 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=875, Invalid=1881, Unknown=0, NotChecked=0, Total=2756 [2019-05-23 11:22:48,591 INFO L146 ILogger]: Start minimizeSevpa. Operand 353 states. [2019-05-23 11:22:48,596 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 353 to 310. [2019-05-23 11:22:48,597 INFO L146 ILogger]: Start removeUnreachable. Operand 310 states. [2019-05-23 11:22:48,598 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 310 states to 310 states and 352 transitions. [2019-05-23 11:22:48,598 INFO L146 ILogger]: Start accepts. Automaton has 310 states and 352 transitions. Word has length 161 [2019-05-23 11:22:48,598 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:48,598 INFO L146 ILogger]: Abstraction has 310 states and 352 transitions. [2019-05-23 11:22:48,598 INFO L146 ILogger]: Interpolant automaton has 29 states. [2019-05-23 11:22:48,598 INFO L146 ILogger]: Start isEmpty. Operand 310 states and 352 transitions. [2019-05-23 11:22:48,600 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 173 [2019-05-23 11:22:48,600 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:48,600 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 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 11:22:48,601 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:48,601 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:48,601 INFO L146 ILogger]: Analyzing trace with hash 1223719683, now seen corresponding path program 12 times [2019-05-23 11:22:48,601 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:48,601 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:48,602 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:48,602 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:48,602 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:48,621 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:49,329 INFO L146 ILogger]: Checked inductivity of 871 backedges. 0 proven. 871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:49,329 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:49,329 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 11:22:49,338 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:23:09,737 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2019-05-23 11:23:09,738 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:09,752 INFO L146 ILogger]: Trace formula consists of 365 conjuncts, 28 conjunts are in the unsatisfiable core [2019-05-23 11:23:09,754 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:09,826 INFO L146 ILogger]: Checked inductivity of 871 backedges. 0 proven. 871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:23:09,853 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:09,853 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2019-05-23 11:23:09,853 INFO L146 ILogger]: Interpolant automaton has 31 states [2019-05-23 11:23:09,854 INFO L146 ILogger]: Constructing interpolant automaton starting with 31 interpolants. [2019-05-23 11:23:09,854 INFO L146 ILogger]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:23:09,854 INFO L146 ILogger]: Start difference. First operand 310 states and 352 transitions. Second operand 31 states. [2019-05-23 11:23:12,979 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:12,979 INFO L146 ILogger]: Finished difference Result 402 states and 455 transitions. [2019-05-23 11:23:12,980 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-05-23 11:23:12,980 INFO L146 ILogger]: Start accepts. Automaton has 31 states. Word has length 172 [2019-05-23 11:23:12,980 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:12,982 INFO L146 ILogger]: With dead ends: 402 [2019-05-23 11:23:12,983 INFO L146 ILogger]: Without dead ends: 374 [2019-05-23 11:23:12,985 INFO L146 ILogger]: 0 DeclaredPredicates, 226 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1012, Invalid=2180, Unknown=0, NotChecked=0, Total=3192 [2019-05-23 11:23:12,986 INFO L146 ILogger]: Start minimizeSevpa. Operand 374 states. [2019-05-23 11:23:12,992 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 374 to 331. [2019-05-23 11:23:12,992 INFO L146 ILogger]: Start removeUnreachable. Operand 331 states. [2019-05-23 11:23:12,993 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 331 states to 331 states and 376 transitions. [2019-05-23 11:23:12,994 INFO L146 ILogger]: Start accepts. Automaton has 331 states and 376 transitions. Word has length 172 [2019-05-23 11:23:12,994 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:12,994 INFO L146 ILogger]: Abstraction has 331 states and 376 transitions. [2019-05-23 11:23:12,994 INFO L146 ILogger]: Interpolant automaton has 31 states. [2019-05-23 11:23:12,994 INFO L146 ILogger]: Start isEmpty. Operand 331 states and 376 transitions. [2019-05-23 11:23:12,996 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 184 [2019-05-23 11:23:12,996 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:12,996 INFO L146 ILogger]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 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 11:23:12,996 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:12,996 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:12,997 INFO L146 ILogger]: Analyzing trace with hash -1139866080, now seen corresponding path program 13 times [2019-05-23 11:23:12,997 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:12,997 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:12,998 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:12,998 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:12,998 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:13,018 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:13,476 INFO L146 ILogger]: Checked inductivity of 1015 backedges. 0 proven. 1015 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:23:13,476 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:13,476 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 11:23:13,487 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:13,542 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:13,544 INFO L146 ILogger]: Trace formula consists of 388 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 11:23:13,547 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:13,653 INFO L146 ILogger]: Checked inductivity of 1015 backedges. 0 proven. 1015 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:23:13,672 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:13,672 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2019-05-23 11:23:13,673 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:23:13,673 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:23:13,674 INFO L146 ILogger]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:23:13,674 INFO L146 ILogger]: Start difference. First operand 331 states and 376 transitions. Second operand 33 states. [2019-05-23 11:23:14,463 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:14,464 INFO L146 ILogger]: Finished difference Result 423 states and 479 transitions. [2019-05-23 11:23:14,464 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-05-23 11:23:14,464 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 183 [2019-05-23 11:23:14,464 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:14,467 INFO L146 ILogger]: With dead ends: 423 [2019-05-23 11:23:14,467 INFO L146 ILogger]: Without dead ends: 395 [2019-05-23 11:23:14,469 INFO L146 ILogger]: 0 DeclaredPredicates, 241 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1159, Invalid=2501, Unknown=0, NotChecked=0, Total=3660 [2019-05-23 11:23:14,469 INFO L146 ILogger]: Start minimizeSevpa. Operand 395 states. [2019-05-23 11:23:14,475 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 395 to 352. [2019-05-23 11:23:14,475 INFO L146 ILogger]: Start removeUnreachable. Operand 352 states. [2019-05-23 11:23:14,476 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 352 states to 352 states and 400 transitions. [2019-05-23 11:23:14,476 INFO L146 ILogger]: Start accepts. Automaton has 352 states and 400 transitions. Word has length 183 [2019-05-23 11:23:14,477 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:14,477 INFO L146 ILogger]: Abstraction has 352 states and 400 transitions. [2019-05-23 11:23:14,477 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:23:14,477 INFO L146 ILogger]: Start isEmpty. Operand 352 states and 400 transitions. [2019-05-23 11:23:14,478 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 195 [2019-05-23 11:23:14,478 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:14,478 INFO L146 ILogger]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 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 11:23:14,479 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:14,479 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:14,479 INFO L146 ILogger]: Analyzing trace with hash 505108195, now seen corresponding path program 14 times [2019-05-23 11:23:14,479 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:14,479 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:14,480 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:14,480 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:14,480 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:14,503 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:15,492 INFO L146 ILogger]: Checked inductivity of 1170 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:23:15,492 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:15,492 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 11:23:15,501 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:23:15,554 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:23:15,555 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:15,556 INFO L146 ILogger]: Trace formula consists of 411 conjuncts, 32 conjunts are in the unsatisfiable core [2019-05-23 11:23:15,559 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:15,628 INFO L146 ILogger]: Checked inductivity of 1170 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:23:15,648 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:15,648 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2019-05-23 11:23:15,648 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:23:15,649 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:23:15,649 INFO L146 ILogger]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:23:15,650 INFO L146 ILogger]: Start difference. First operand 352 states and 400 transitions. Second operand 35 states. [2019-05-23 11:23:16,562 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:16,562 INFO L146 ILogger]: Finished difference Result 444 states and 503 transitions. [2019-05-23 11:23:16,562 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-05-23 11:23:16,563 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 194 [2019-05-23 11:23:16,564 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:16,567 INFO L146 ILogger]: With dead ends: 444 [2019-05-23 11:23:16,567 INFO L146 ILogger]: Without dead ends: 416 [2019-05-23 11:23:16,569 INFO L146 ILogger]: 0 DeclaredPredicates, 256 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1316, Invalid=2844, Unknown=0, NotChecked=0, Total=4160 [2019-05-23 11:23:16,570 INFO L146 ILogger]: Start minimizeSevpa. Operand 416 states. [2019-05-23 11:23:16,575 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 416 to 373. [2019-05-23 11:23:16,575 INFO L146 ILogger]: Start removeUnreachable. Operand 373 states. [2019-05-23 11:23:16,576 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 373 states to 373 states and 424 transitions. [2019-05-23 11:23:16,576 INFO L146 ILogger]: Start accepts. Automaton has 373 states and 424 transitions. Word has length 194 [2019-05-23 11:23:16,577 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:16,577 INFO L146 ILogger]: Abstraction has 373 states and 424 transitions. [2019-05-23 11:23:16,577 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:23:16,577 INFO L146 ILogger]: Start isEmpty. Operand 373 states and 424 transitions. [2019-05-23 11:23:16,578 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 206 [2019-05-23 11:23:16,578 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:16,579 INFO L146 ILogger]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 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 11:23:16,579 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:16,579 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:16,579 INFO L146 ILogger]: Analyzing trace with hash -1668415936, now seen corresponding path program 15 times [2019-05-23 11:23:16,579 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:16,580 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:16,580 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:16,581 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:16,581 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:16,605 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:17,119 INFO L146 ILogger]: Checked inductivity of 1336 backedges. 0 proven. 1336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:23:17,119 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:17,119 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:23:17,127 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2