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/reducercommutativity/rangesum40_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:22:39,972 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:22:39,974 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:22:39,991 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:22:39,992 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:22:39,993 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:22:39,995 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:22:39,997 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:22:40,000 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:22:40,001 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:22:40,002 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:22:40,003 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:22:40,004 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:22:40,005 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:22:40,006 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:22:40,006 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:22:40,007 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:22:40,010 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:22:40,012 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:22:40,014 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:22:40,015 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:22:40,017 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:22:40,019 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:22:40,020 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:22:40,020 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:22:40,021 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:22:40,021 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:22:40,023 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:22:40,023 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:22:40,024 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:22:40,025 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:22:40,025 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:22:40,026 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:22:40,027 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:22:40,027 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:22:40,028 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:22:40,028 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:22:40,029 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:22:40,030 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:22:40,030 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:22:40,047 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:22:40,047 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:22:40,049 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:22:40,049 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:22:40,049 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:22:40,049 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:22:40,050 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:22:40,050 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:22:40,050 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:22:40,050 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:22:40,050 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:22:40,051 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:22:40,051 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:22:40,051 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:22:40,051 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:22:40,051 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:22:40,052 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:22:40,052 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:22:40,052 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:22:40,052 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:22:40,052 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:22:40,053 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:22:40,053 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:22:40,053 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:22:40,053 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:22:40,053 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:22:40,054 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:22:40,054 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:22:40,054 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 11:22:40,098 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:22:40,113 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:22:40,119 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:22:40,121 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:22:40,121 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:22:40,122 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/reducercommutativity/rangesum40_false-unreach-call.i [2019-05-23 11:22:40,187 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3d47bcf/f127c99c2f0743b6bcdbc0dab4b46da7/FLAG4aad973f4 [2019-05-23 11:22:40,659 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:22:40,659 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/reducercommutativity/rangesum40_false-unreach-call.i [2019-05-23 11:22:40,666 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3d47bcf/f127c99c2f0743b6bcdbc0dab4b46da7/FLAG4aad973f4 [2019-05-23 11:22:41,007 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3d47bcf/f127c99c2f0743b6bcdbc0dab4b46da7 [2019-05-23 11:22:41,019 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:22:41,020 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:22:41,021 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:41,022 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:22:41,027 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:22:41,028 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,030 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d79be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41, skipping insertion in model container [2019-05-23 11:22:41,031 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,038 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:22:41,058 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:22:41,237 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:41,246 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:22:41,282 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:41,303 INFO L146 ILogger]: Completed translation [2019-05-23 11:22:41,304 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41 WrapperNode [2019-05-23 11:22:41,304 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:41,305 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:41,305 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:22:41,305 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:22:41,315 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,324 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,354 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:41,354 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:22:41,355 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:22:41,355 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:22:41,363 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,363 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,366 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,366 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,473 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,485 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,492 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (1/1) ... [2019-05-23 11:22:41,495 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:22:41,498 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:22:41,498 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:22:41,498 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:22:41,502 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (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 11:22:41,557 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:22:41,558 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:22:41,558 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:22:41,558 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:22:41,558 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:22:41,558 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:22:42,368 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:22:42,369 INFO L146 ILogger]: Removed 17 assume(true) statements. [2019-05-23 11:22:42,370 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:42 BoogieIcfgContainer [2019-05-23 11:22:42,370 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:22:42,371 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:22:42,371 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:22:42,374 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:22:42,374 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:22:41" (1/3) ... [2019-05-23 11:22:42,375 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e0d3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:42, skipping insertion in model container [2019-05-23 11:22:42,376 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:41" (2/3) ... [2019-05-23 11:22:42,376 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e0d3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:42, skipping insertion in model container [2019-05-23 11:22:42,376 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:42" (3/3) ... [2019-05-23 11:22:42,378 INFO L146 ILogger]: Analyzing ICFG rangesum40_false-unreach-call.i [2019-05-23 11:22:42,387 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:22:42,395 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:22:42,412 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:22:42,444 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:22:42,445 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:22:42,445 INFO L146 ILogger]: Hoare is true [2019-05-23 11:22:42,445 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:22:42,445 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:22:42,446 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:22:42,446 INFO L146 ILogger]: Difference is false [2019-05-23 11:22:42,446 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:22:42,446 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:22:42,466 INFO L146 ILogger]: Start isEmpty. Operand 124 states. [2019-05-23 11:22:42,475 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 79 [2019-05-23 11:22:42,476 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:42,477 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:42,479 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:42,483 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:42,484 INFO L146 ILogger]: Analyzing trace with hash -924562874, now seen corresponding path program 1 times [2019-05-23 11:22:42,486 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:42,486 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:42,527 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,528 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:42,528 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,579 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:42,664 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 11:22:42,666 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:42,667 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:22:42,671 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:22:42,685 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:22:42,686 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:42,688 INFO L146 ILogger]: Start difference. First operand 124 states. Second operand 3 states. [2019-05-23 11:22:42,799 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:42,800 INFO L146 ILogger]: Finished difference Result 237 states and 269 transitions. [2019-05-23 11:22:42,800 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:22:42,802 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 78 [2019-05-23 11:22:42,802 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:42,813 INFO L146 ILogger]: With dead ends: 237 [2019-05-23 11:22:42,813 INFO L146 ILogger]: Without dead ends: 124 [2019-05-23 11:22:42,816 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 11:22:42,835 INFO L146 ILogger]: Start minimizeSevpa. Operand 124 states. [2019-05-23 11:22:42,862 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 124 to 119. [2019-05-23 11:22:42,863 INFO L146 ILogger]: Start removeUnreachable. Operand 119 states. [2019-05-23 11:22:42,866 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2019-05-23 11:22:42,872 INFO L146 ILogger]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 78 [2019-05-23 11:22:42,872 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:42,872 INFO L146 ILogger]: Abstraction has 119 states and 129 transitions. [2019-05-23 11:22:42,874 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:22:42,874 INFO L146 ILogger]: Start isEmpty. Operand 119 states and 129 transitions. [2019-05-23 11:22:42,878 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 86 [2019-05-23 11:22:42,879 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:42,880 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:42,881 INFO L146 ILogger]: === Iteration 2 === [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 -955470100, now seen corresponding path program 1 times [2019-05-23 11:22:42,882 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:42,883 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:42,885 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,885 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:42,885 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,905 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:43,181 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 11:22:43,181 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:43,181 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 11:22:43,200 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:43,272 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:43,278 INFO L146 ILogger]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:22:43,288 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:43,324 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 11:22:43,354 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:43,354 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:22:43,355 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:43,359 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:43,359 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:43,359 INFO L146 ILogger]: Start difference. First operand 119 states and 129 transitions. Second operand 6 states. [2019-05-23 11:22:43,694 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:43,694 INFO L146 ILogger]: Finished difference Result 302 states and 331 transitions. [2019-05-23 11:22:43,695 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:43,695 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 85 [2019-05-23 11:22:43,695 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:43,698 INFO L146 ILogger]: With dead ends: 302 [2019-05-23 11:22:43,698 INFO L146 ILogger]: Without dead ends: 201 [2019-05-23 11:22:43,700 INFO L146 ILogger]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:43,700 INFO L146 ILogger]: Start minimizeSevpa. Operand 201 states. [2019-05-23 11:22:43,714 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 201 to 144. [2019-05-23 11:22:43,715 INFO L146 ILogger]: Start removeUnreachable. Operand 144 states. [2019-05-23 11:22:43,719 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 144 states to 144 states and 160 transitions. [2019-05-23 11:22:43,719 INFO L146 ILogger]: Start accepts. Automaton has 144 states and 160 transitions. Word has length 85 [2019-05-23 11:22:43,720 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:43,720 INFO L146 ILogger]: Abstraction has 144 states and 160 transitions. [2019-05-23 11:22:43,720 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:43,720 INFO L146 ILogger]: Start isEmpty. Operand 144 states and 160 transitions. [2019-05-23 11:22:43,723 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 93 [2019-05-23 11:22:43,724 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:43,724 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:43,724 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:43,725 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:43,725 INFO L146 ILogger]: Analyzing trace with hash -1153429310, now seen corresponding path program 1 times [2019-05-23 11:22:43,725 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:43,725 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:43,726 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:43,726 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:43,727 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:43,745 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:43,807 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:22:43,808 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:43,808 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:22:43,808 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:22:43,809 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:22:43,809 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:43,809 INFO L146 ILogger]: Start difference. First operand 144 states and 160 transitions. Second operand 3 states. [2019-05-23 11:22:43,970 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:43,971 INFO L146 ILogger]: Finished difference Result 257 states and 292 transitions. [2019-05-23 11:22:43,973 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:22:43,973 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 92 [2019-05-23 11:22:43,974 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:43,977 INFO L146 ILogger]: With dead ends: 257 [2019-05-23 11:22:43,977 INFO L146 ILogger]: Without dead ends: 156 [2019-05-23 11:22:43,982 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 11:22:43,983 INFO L146 ILogger]: Start minimizeSevpa. Operand 156 states. [2019-05-23 11:22:43,998 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 156 to 150. [2019-05-23 11:22:43,999 INFO L146 ILogger]: Start removeUnreachable. Operand 150 states. [2019-05-23 11:22:44,008 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 150 states to 150 states and 166 transitions. [2019-05-23 11:22:44,008 INFO L146 ILogger]: Start accepts. Automaton has 150 states and 166 transitions. Word has length 92 [2019-05-23 11:22:44,008 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:44,009 INFO L146 ILogger]: Abstraction has 150 states and 166 transitions. [2019-05-23 11:22:44,009 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:22:44,009 INFO L146 ILogger]: Start isEmpty. Operand 150 states and 166 transitions. [2019-05-23 11:22:44,011 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 108 [2019-05-23 11:22:44,011 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:44,012 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:44,012 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:44,012 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:44,012 INFO L146 ILogger]: Analyzing trace with hash -1024653488, now seen corresponding path program 1 times [2019-05-23 11:22:44,013 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:44,013 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:44,014 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,017 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:44,017 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,054 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:44,289 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:22:44,289 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:44,289 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 11:22:44,301 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:44,348 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:44,349 INFO L146 ILogger]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:22:44,353 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:44,416 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-05-23 11:22:44,443 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:44,444 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:22:44,444 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:44,445 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:44,445 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:44,445 INFO L146 ILogger]: Start difference. First operand 150 states and 166 transitions. Second operand 6 states. [2019-05-23 11:22:44,697 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:44,697 INFO L146 ILogger]: Finished difference Result 282 states and 318 transitions. [2019-05-23 11:22:44,700 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:44,700 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 107 [2019-05-23 11:22:44,701 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:44,702 INFO L146 ILogger]: With dead ends: 282 [2019-05-23 11:22:44,702 INFO L146 ILogger]: Without dead ends: 177 [2019-05-23 11:22:44,703 INFO L146 ILogger]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:44,706 INFO L146 ILogger]: Start minimizeSevpa. Operand 177 states. [2019-05-23 11:22:44,730 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 177 to 166. [2019-05-23 11:22:44,731 INFO L146 ILogger]: Start removeUnreachable. Operand 166 states. [2019-05-23 11:22:44,733 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 166 states to 166 states and 182 transitions. [2019-05-23 11:22:44,733 INFO L146 ILogger]: Start accepts. Automaton has 166 states and 182 transitions. Word has length 107 [2019-05-23 11:22:44,734 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:44,734 INFO L146 ILogger]: Abstraction has 166 states and 182 transitions. [2019-05-23 11:22:44,734 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:44,735 INFO L146 ILogger]: Start isEmpty. Operand 166 states and 182 transitions. [2019-05-23 11:22:44,744 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 130 [2019-05-23 11:22:44,745 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:44,746 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:44,746 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:44,746 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:44,747 INFO L146 ILogger]: Analyzing trace with hash 379922757, now seen corresponding path program 1 times [2019-05-23 11:22:44,747 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:44,747 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:44,749 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,750 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:44,750 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,809 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:45,071 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-05-23 11:22:45,071 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:45,072 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 11:22:45,082 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:45,131 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:45,133 INFO L146 ILogger]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:45,137 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:45,266 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-05-23 11:22:45,284 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:45,285 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:22:45,285 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:22:45,286 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:22:45,287 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:22:45,287 INFO L146 ILogger]: Start difference. First operand 166 states and 182 transitions. Second operand 10 states. [2019-05-23 11:22:45,717 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:45,718 INFO L146 ILogger]: Finished difference Result 331 states and 364 transitions. [2019-05-23 11:22:45,719 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:22:45,719 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 129 [2019-05-23 11:22:45,720 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:45,721 INFO L146 ILogger]: With dead ends: 331 [2019-05-23 11:22:45,721 INFO L146 ILogger]: Without dead ends: 190 [2019-05-23 11:22:45,722 INFO L146 ILogger]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:22:45,722 INFO L146 ILogger]: Start minimizeSevpa. Operand 190 states. [2019-05-23 11:22:45,729 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 190 to 180. [2019-05-23 11:22:45,729 INFO L146 ILogger]: Start removeUnreachable. Operand 180 states. [2019-05-23 11:22:45,730 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 180 states to 180 states and 196 transitions. [2019-05-23 11:22:45,730 INFO L146 ILogger]: Start accepts. Automaton has 180 states and 196 transitions. Word has length 129 [2019-05-23 11:22:45,731 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:45,731 INFO L146 ILogger]: Abstraction has 180 states and 196 transitions. [2019-05-23 11:22:45,731 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:22:45,731 INFO L146 ILogger]: Start isEmpty. Operand 180 states and 196 transitions. [2019-05-23 11:22:45,733 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 144 [2019-05-23 11:22:45,733 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:45,733 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:45,734 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:45,734 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:45,734 INFO L146 ILogger]: Analyzing trace with hash 1280746348, now seen corresponding path program 2 times [2019-05-23 11:22:45,734 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:45,734 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:45,735 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:45,735 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:45,736 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:45,760 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:46,008 INFO L146 ILogger]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-05-23 11:22:46,008 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:46,008 INFO L146 ILogger]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-05-23 11:22:46,009 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:46,009 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:46,010 INFO L146 ILogger]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:46,010 INFO L146 ILogger]: Start difference. First operand 180 states and 196 transitions. Second operand 11 states. [2019-05-23 11:22:46,380 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:46,380 INFO L146 ILogger]: Finished difference Result 402 states and 431 transitions. [2019-05-23 11:22:46,381 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:22:46,382 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 143 [2019-05-23 11:22:46,382 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:46,384 INFO L146 ILogger]: With dead ends: 402 [2019-05-23 11:22:46,384 INFO L146 ILogger]: Without dead ends: 393 [2019-05-23 11:22:46,385 INFO L146 ILogger]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:46,386 INFO L146 ILogger]: Start minimizeSevpa. Operand 393 states. [2019-05-23 11:22:46,396 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 393 to 279. [2019-05-23 11:22:46,397 INFO L146 ILogger]: Start removeUnreachable. Operand 279 states. [2019-05-23 11:22:46,398 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 279 states to 279 states and 304 transitions. [2019-05-23 11:22:46,398 INFO L146 ILogger]: Start accepts. Automaton has 279 states and 304 transitions. Word has length 143 [2019-05-23 11:22:46,398 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:46,399 INFO L146 ILogger]: Abstraction has 279 states and 304 transitions. [2019-05-23 11:22:46,399 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:46,399 INFO L146 ILogger]: Start isEmpty. Operand 279 states and 304 transitions. [2019-05-23 11:22:46,401 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 153 [2019-05-23 11:22:46,401 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:46,401 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:46,401 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:46,401 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:46,402 INFO L146 ILogger]: Analyzing trace with hash -745362242, now seen corresponding path program 1 times [2019-05-23 11:22:46,402 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:46,402 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:46,403 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,403 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:46,403 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,415 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:46,416 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:46,416 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:46,437 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:46,489 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:46,490 INFO L146 ILogger]: Trace formula consists of 250 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:46,505 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:46,644 INFO L146 ILogger]: Checked inductivity of 65 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-05-23 11:22:46,664 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:46,664 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:22:46,665 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:46,665 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:46,665 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:46,665 INFO L146 ILogger]: Start difference. First operand 279 states and 304 transitions. Second operand 9 states. [2019-05-23 11:22:46,786 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:46,787 INFO L146 ILogger]: Finished difference Result 538 states and 588 transitions. [2019-05-23 11:22:46,788 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:46,788 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 152 [2019-05-23 11:22:46,788 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:46,790 INFO L146 ILogger]: With dead ends: 538 [2019-05-23 11:22:46,790 INFO L146 ILogger]: Without dead ends: 291 [2019-05-23 11:22:46,791 INFO L146 ILogger]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:46,791 INFO L146 ILogger]: Start minimizeSevpa. Operand 291 states. [2019-05-23 11:22:46,798 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 291 to 286. [2019-05-23 11:22:46,798 INFO L146 ILogger]: Start removeUnreachable. Operand 286 states. [2019-05-23 11:22:46,799 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 286 states to 286 states and 311 transitions. [2019-05-23 11:22:46,799 INFO L146 ILogger]: Start accepts. Automaton has 286 states and 311 transitions. Word has length 152 [2019-05-23 11:22:46,800 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:46,800 INFO L146 ILogger]: Abstraction has 286 states and 311 transitions. [2019-05-23 11:22:46,800 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:46,800 INFO L146 ILogger]: Start isEmpty. Operand 286 states and 311 transitions. [2019-05-23 11:22:46,802 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 160 [2019-05-23 11:22:46,802 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:46,802 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:46,803 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:46,803 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:46,803 INFO L146 ILogger]: Analyzing trace with hash 1348160392, now seen corresponding path program 2 times [2019-05-23 11:22:46,803 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:46,803 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:46,804 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,804 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:46,804 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,814 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:46,815 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:46,815 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:46,834 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:46,888 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:46,888 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:46,889 INFO L146 ILogger]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:46,894 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:47,241 INFO L146 ILogger]: Checked inductivity of 87 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-05-23 11:22:47,260 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:47,260 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:47,260 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:47,260 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:47,261 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:47,261 INFO L146 ILogger]: Start difference. First operand 286 states and 311 transitions. Second operand 7 states. [2019-05-23 11:22:47,532 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:47,532 INFO L146 ILogger]: Finished difference Result 595 states and 660 transitions. [2019-05-23 11:22:47,532 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:47,533 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 159 [2019-05-23 11:22:47,533 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:47,535 INFO L146 ILogger]: With dead ends: 595 [2019-05-23 11:22:47,535 INFO L146 ILogger]: Without dead ends: 382 [2019-05-23 11:22:47,536 INFO L146 ILogger]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:47,536 INFO L146 ILogger]: Start minimizeSevpa. Operand 382 states. [2019-05-23 11:22:47,543 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 382 to 322. [2019-05-23 11:22:47,543 INFO L146 ILogger]: Start removeUnreachable. Operand 322 states. [2019-05-23 11:22:47,544 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 322 states to 322 states and 343 transitions. [2019-05-23 11:22:47,545 INFO L146 ILogger]: Start accepts. Automaton has 322 states and 343 transitions. Word has length 159 [2019-05-23 11:22:47,545 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:47,545 INFO L146 ILogger]: Abstraction has 322 states and 343 transitions. [2019-05-23 11:22:47,545 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:47,545 INFO L146 ILogger]: Start isEmpty. Operand 322 states and 343 transitions. [2019-05-23 11:22:47,547 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 205 [2019-05-23 11:22:47,548 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:47,548 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:47,548 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:47,548 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:47,549 INFO L146 ILogger]: Analyzing trace with hash 503003842, now seen corresponding path program 1 times [2019-05-23 11:22:47,549 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:47,549 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:47,550 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:47,550 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:47,550 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:47,561 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:47,561 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:47,562 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:47,579 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:47,630 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:47,631 INFO L146 ILogger]: Trace formula consists of 328 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:22:47,635 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:47,783 INFO L146 ILogger]: Checked inductivity of 169 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2019-05-23 11:22:47,802 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:47,802 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:22:47,803 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:47,803 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:47,803 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:47,804 INFO L146 ILogger]: Start difference. First operand 322 states and 343 transitions. Second operand 11 states. [2019-05-23 11:22:48,039 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:48,039 INFO L146 ILogger]: Finished difference Result 617 states and 659 transitions. [2019-05-23 11:22:48,042 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:48,042 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 204 [2019-05-23 11:22:48,043 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:48,044 INFO L146 ILogger]: With dead ends: 617 [2019-05-23 11:22:48,044 INFO L146 ILogger]: Without dead ends: 334 [2019-05-23 11:22:48,045 INFO L146 ILogger]: 0 DeclaredPredicates, 211 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:48,046 INFO L146 ILogger]: Start minimizeSevpa. Operand 334 states. [2019-05-23 11:22:48,056 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 334 to 329. [2019-05-23 11:22:48,057 INFO L146 ILogger]: Start removeUnreachable. Operand 329 states. [2019-05-23 11:22:48,058 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 329 states to 329 states and 350 transitions. [2019-05-23 11:22:48,058 INFO L146 ILogger]: Start accepts. Automaton has 329 states and 350 transitions. Word has length 204 [2019-05-23 11:22:48,058 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:48,058 INFO L146 ILogger]: Abstraction has 329 states and 350 transitions. [2019-05-23 11:22:48,059 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:48,059 INFO L146 ILogger]: Start isEmpty. Operand 329 states and 350 transitions. [2019-05-23 11:22:48,069 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 212 [2019-05-23 11:22:48,069 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:48,070 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:48,070 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:48,070 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:48,071 INFO L146 ILogger]: Analyzing trace with hash -257890164, now seen corresponding path program 2 times [2019-05-23 11:22:48,071 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:48,071 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:48,072 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:48,073 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:48,073 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:48,094 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:48,094 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:48,094 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:48,112 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:48,190 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:48,190 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:48,191 INFO L146 ILogger]: Trace formula consists of 338 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:48,205 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:48,405 INFO L146 ILogger]: Checked inductivity of 198 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2019-05-23 11:22:48,435 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:48,436 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:22:48,436 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:48,437 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:48,437 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:48,438 INFO L146 ILogger]: Start difference. First operand 329 states and 350 transitions. Second operand 13 states. [2019-05-23 11:22:48,726 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:48,726 INFO L146 ILogger]: Finished difference Result 624 states and 666 transitions. [2019-05-23 11:22:48,727 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:48,727 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 211 [2019-05-23 11:22:48,727 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:48,729 INFO L146 ILogger]: With dead ends: 624 [2019-05-23 11:22:48,729 INFO L146 ILogger]: Without dead ends: 341 [2019-05-23 11:22:48,730 INFO L146 ILogger]: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:22:48,731 INFO L146 ILogger]: Start minimizeSevpa. Operand 341 states. [2019-05-23 11:22:48,738 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 341 to 336. [2019-05-23 11:22:48,738 INFO L146 ILogger]: Start removeUnreachable. Operand 336 states. [2019-05-23 11:22:48,739 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 336 states to 336 states and 357 transitions. [2019-05-23 11:22:48,740 INFO L146 ILogger]: Start accepts. Automaton has 336 states and 357 transitions. Word has length 211 [2019-05-23 11:22:48,740 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:48,740 INFO L146 ILogger]: Abstraction has 336 states and 357 transitions. [2019-05-23 11:22:48,740 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:48,741 INFO L146 ILogger]: Start isEmpty. Operand 336 states and 357 transitions. [2019-05-23 11:22:48,743 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 219 [2019-05-23 11:22:48,743 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:48,743 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:48,744 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:48,744 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:48,744 INFO L146 ILogger]: Analyzing trace with hash -312736894, now seen corresponding path program 3 times [2019-05-23 11:22:48,744 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:48,744 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:48,745 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:48,745 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:48,746 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:48,757 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:48,757 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:48,757 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:48,777 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:49,102 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:22:49,103 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:49,104 INFO L146 ILogger]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:49,106 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:49,170 INFO L146 ILogger]: Checked inductivity of 234 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2019-05-23 11:22:49,189 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:49,189 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:49,190 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:49,190 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:49,190 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:49,190 INFO L146 ILogger]: Start difference. First operand 336 states and 357 transitions. Second operand 7 states. [2019-05-23 11:22:50,171 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:50,171 INFO L146 ILogger]: Finished difference Result 449 states and 478 transitions. [2019-05-23 11:22:50,172 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:50,172 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 218 [2019-05-23 11:22:50,173 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:50,175 INFO L146 ILogger]: With dead ends: 449 [2019-05-23 11:22:50,175 INFO L146 ILogger]: Without dead ends: 360 [2019-05-23 11:22:50,176 INFO L146 ILogger]: 0 DeclaredPredicates, 221 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:50,177 INFO L146 ILogger]: Start minimizeSevpa. Operand 360 states. [2019-05-23 11:22:50,183 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 360 to 350. [2019-05-23 11:22:50,184 INFO L146 ILogger]: Start removeUnreachable. Operand 350 states. [2019-05-23 11:22:50,185 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 350 states to 350 states and 371 transitions. [2019-05-23 11:22:50,185 INFO L146 ILogger]: Start accepts. Automaton has 350 states and 371 transitions. Word has length 218 [2019-05-23 11:22:50,185 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:50,186 INFO L146 ILogger]: Abstraction has 350 states and 371 transitions. [2019-05-23 11:22:50,186 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:50,186 INFO L146 ILogger]: Start isEmpty. Operand 350 states and 371 transitions. [2019-05-23 11:22:50,187 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 226 [2019-05-23 11:22:50,187 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:50,188 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:50,188 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:50,188 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:50,188 INFO L146 ILogger]: Analyzing trace with hash -1538059067, now seen corresponding path program 4 times [2019-05-23 11:22:50,188 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:50,189 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:50,190 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,190 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:50,190 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,200 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:50,200 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:50,200 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:50,219 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:50,303 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:50,304 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:50,305 INFO L146 ILogger]: Trace formula consists of 358 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:22:50,309 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:50,721 INFO L146 ILogger]: Checked inductivity of 249 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2019-05-23 11:22:50,740 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:50,740 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:22:50,741 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:22:50,741 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:22:50,741 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:50,741 INFO L146 ILogger]: Start difference. First operand 350 states and 371 transitions. Second operand 15 states. [2019-05-23 11:22:50,994 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:50,994 INFO L146 ILogger]: Finished difference Result 659 states and 701 transitions. [2019-05-23 11:22:50,997 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:22:50,997 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 225 [2019-05-23 11:22:50,997 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:50,999 INFO L146 ILogger]: With dead ends: 659 [2019-05-23 11:22:50,999 INFO L146 ILogger]: Without dead ends: 362 [2019-05-23 11:22:51,000 INFO L146 ILogger]: 0 DeclaredPredicates, 236 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:22:51,001 INFO L146 ILogger]: Start minimizeSevpa. Operand 362 states. [2019-05-23 11:22:51,007 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 362 to 357. [2019-05-23 11:22:51,007 INFO L146 ILogger]: Start removeUnreachable. Operand 357 states. [2019-05-23 11:22:51,008 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 357 states to 357 states and 378 transitions. [2019-05-23 11:22:51,008 INFO L146 ILogger]: Start accepts. Automaton has 357 states and 378 transitions. Word has length 225 [2019-05-23 11:22:51,008 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:51,009 INFO L146 ILogger]: Abstraction has 357 states and 378 transitions. [2019-05-23 11:22:51,009 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:22:51,009 INFO L146 ILogger]: Start isEmpty. Operand 357 states and 378 transitions. [2019-05-23 11:22:51,010 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 233 [2019-05-23 11:22:51,010 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:51,011 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:51,011 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:51,011 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:51,011 INFO L146 ILogger]: Analyzing trace with hash -546256581, now seen corresponding path program 5 times [2019-05-23 11:22:51,011 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:51,012 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:51,012 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,013 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:51,013 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,023 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:51,023 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:51,023 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:51,038 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:51,133 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2019-05-23 11:22:51,133 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:51,135 INFO L146 ILogger]: Trace formula consists of 368 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:51,138 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:51,275 INFO L146 ILogger]: Checked inductivity of 292 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2019-05-23 11:22:51,295 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:51,295 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:51,295 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:51,296 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:51,296 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:51,296 INFO L146 ILogger]: Start difference. First operand 357 states and 378 transitions. Second operand 7 states. [2019-05-23 11:22:51,766 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:51,766 INFO L146 ILogger]: Finished difference Result 669 states and 715 transitions. [2019-05-23 11:22:51,766 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:51,767 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 232 [2019-05-23 11:22:51,767 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:51,770 INFO L146 ILogger]: With dead ends: 669 [2019-05-23 11:22:51,770 INFO L146 ILogger]: Without dead ends: 392 [2019-05-23 11:22:51,771 INFO L146 ILogger]: 0 DeclaredPredicates, 239 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:51,771 INFO L146 ILogger]: Start minimizeSevpa. Operand 392 states. [2019-05-23 11:22:51,778 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 392 to 382. [2019-05-23 11:22:51,778 INFO L146 ILogger]: Start removeUnreachable. Operand 382 states. [2019-05-23 11:22:51,779 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 382 states to 382 states and 403 transitions. [2019-05-23 11:22:51,779 INFO L146 ILogger]: Start accepts. Automaton has 382 states and 403 transitions. Word has length 232 [2019-05-23 11:22:51,780 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:51,780 INFO L146 ILogger]: Abstraction has 382 states and 403 transitions. [2019-05-23 11:22:51,780 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:51,780 INFO L146 ILogger]: Start isEmpty. Operand 382 states and 403 transitions. [2019-05-23 11:22:51,781 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 248 [2019-05-23 11:22:51,782 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:51,782 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:51,782 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:51,782 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:51,783 INFO L146 ILogger]: Analyzing trace with hash 2080387367, now seen corresponding path program 6 times [2019-05-23 11:22:51,783 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:51,783 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:51,784 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,784 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:51,784 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,794 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:51,795 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:51,795 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:51,812 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:55,539 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:22:55,539 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:55,542 INFO L146 ILogger]: Trace formula consists of 358 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:55,545 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:55,685 INFO L146 ILogger]: Checked inductivity of 355 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2019-05-23 11:22:55,707 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:55,707 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:22:55,707 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:55,707 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:55,708 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:55,708 INFO L146 ILogger]: Start difference. First operand 382 states and 403 transitions. Second operand 9 states. [2019-05-23 11:22:55,819 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:55,819 INFO L146 ILogger]: Finished difference Result 505 states and 534 transitions. [2019-05-23 11:22:55,819 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:55,819 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 247 [2019-05-23 11:22:55,820 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:55,822 INFO L146 ILogger]: With dead ends: 505 [2019-05-23 11:22:55,822 INFO L146 ILogger]: Without dead ends: 406 [2019-05-23 11:22:55,823 INFO L146 ILogger]: 0 DeclaredPredicates, 252 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:55,823 INFO L146 ILogger]: Start minimizeSevpa. Operand 406 states. [2019-05-23 11:22:55,830 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 406 to 396. [2019-05-23 11:22:55,830 INFO L146 ILogger]: Start removeUnreachable. Operand 396 states. [2019-05-23 11:22:55,831 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 396 states to 396 states and 417 transitions. [2019-05-23 11:22:55,831 INFO L146 ILogger]: Start accepts. Automaton has 396 states and 417 transitions. Word has length 247 [2019-05-23 11:22:55,832 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:55,832 INFO L146 ILogger]: Abstraction has 396 states and 417 transitions. [2019-05-23 11:22:55,832 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:55,832 INFO L146 ILogger]: Start isEmpty. Operand 396 states and 417 transitions. [2019-05-23 11:22:55,833 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 255 [2019-05-23 11:22:55,834 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:55,834 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:55,834 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:55,834 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:55,835 INFO L146 ILogger]: Analyzing trace with hash 1204565478, now seen corresponding path program 7 times [2019-05-23 11:22:55,835 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:55,835 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:55,836 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,836 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:55,836 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,845 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:55,845 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:55,846 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:55,860 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:55,918 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:55,920 INFO L146 ILogger]: Trace formula consists of 399 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:22:55,924 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:56,417 INFO L146 ILogger]: Checked inductivity of 377 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-05-23 11:22:56,436 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:56,436 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 11:22:56,437 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:22:56,437 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:22:56,437 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:56,438 INFO L146 ILogger]: Start difference. First operand 396 states and 417 transitions. Second operand 17 states. [2019-05-23 11:22:56,823 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:56,823 INFO L146 ILogger]: Finished difference Result 744 states and 786 transitions. [2019-05-23 11:22:56,824 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:22:56,824 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 254 [2019-05-23 11:22:56,824 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:56,826 INFO L146 ILogger]: With dead ends: 744 [2019-05-23 11:22:56,826 INFO L146 ILogger]: Without dead ends: 408 [2019-05-23 11:22:56,827 INFO L146 ILogger]: 0 DeclaredPredicates, 267 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:22:56,828 INFO L146 ILogger]: Start minimizeSevpa. Operand 408 states. [2019-05-23 11:22:56,835 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 408 to 403. [2019-05-23 11:22:56,835 INFO L146 ILogger]: Start removeUnreachable. Operand 403 states. [2019-05-23 11:22:56,836 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 403 states to 403 states and 424 transitions. [2019-05-23 11:22:56,836 INFO L146 ILogger]: Start accepts. Automaton has 403 states and 424 transitions. Word has length 254 [2019-05-23 11:22:56,836 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:56,836 INFO L146 ILogger]: Abstraction has 403 states and 424 transitions. [2019-05-23 11:22:56,836 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:22:56,837 INFO L146 ILogger]: Start isEmpty. Operand 403 states and 424 transitions. [2019-05-23 11:22:56,838 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 262 [2019-05-23 11:22:56,838 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:56,838 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:56,839 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:56,839 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:56,839 INFO L146 ILogger]: Analyzing trace with hash 370285872, now seen corresponding path program 8 times [2019-05-23 11:22:56,839 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:56,839 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:56,840 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:56,840 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:56,840 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:56,851 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:56,851 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:56,851 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:56,867 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:59,674 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:59,674 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:59,676 INFO L146 ILogger]: Trace formula consists of 409 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:22:59,679 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:59,886 INFO L146 ILogger]: Checked inductivity of 427 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-05-23 11:22:59,904 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:59,904 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-05-23 11:22:59,905 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:22:59,905 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:22:59,905 INFO L146 ILogger]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:59,906 INFO L146 ILogger]: Start difference. First operand 403 states and 424 transitions. Second operand 19 states. [2019-05-23 11:23:00,184 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:00,184 INFO L146 ILogger]: Finished difference Result 751 states and 793 transitions. [2019-05-23 11:23:00,188 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:23:00,188 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 261 [2019-05-23 11:23:00,188 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:00,190 INFO L146 ILogger]: With dead ends: 751 [2019-05-23 11:23:00,191 INFO L146 ILogger]: Without dead ends: 415 [2019-05-23 11:23:00,192 INFO L146 ILogger]: 0 DeclaredPredicates, 276 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=403, Invalid=787, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:23:00,193 INFO L146 ILogger]: Start minimizeSevpa. Operand 415 states. [2019-05-23 11:23:00,199 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 415 to 410. [2019-05-23 11:23:00,199 INFO L146 ILogger]: Start removeUnreachable. Operand 410 states. [2019-05-23 11:23:00,200 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 410 states to 410 states and 431 transitions. [2019-05-23 11:23:00,200 INFO L146 ILogger]: Start accepts. Automaton has 410 states and 431 transitions. Word has length 261 [2019-05-23 11:23:00,201 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:00,201 INFO L146 ILogger]: Abstraction has 410 states and 431 transitions. [2019-05-23 11:23:00,201 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:23:00,201 INFO L146 ILogger]: Start isEmpty. Operand 410 states and 431 transitions. [2019-05-23 11:23:00,202 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 269 [2019-05-23 11:23:00,203 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:00,203 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:00,203 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:00,203 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:00,204 INFO L146 ILogger]: Analyzing trace with hash -691974490, now seen corresponding path program 9 times [2019-05-23 11:23:00,204 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:00,204 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:00,205 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:00,205 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:00,205 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:00,215 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:23:00,215 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:23:00,216 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:23:00,231 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2