java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-multidimensional/diff-3-n-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:30:57,587 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:30:57,589 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:30:57,601 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:30:57,602 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:30:57,603 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:30:57,604 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:30:57,606 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:30:57,608 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:30:57,609 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:30:57,610 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:30:57,610 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:30:57,611 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:30:57,612 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:30:57,613 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:30:57,614 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:30:57,615 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:30:57,617 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:30:57,619 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:30:57,621 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:30:57,625 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:30:57,629 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:30:57,631 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:30:57,632 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:30:57,632 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:30:57,633 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:30:57,633 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:30:57,634 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:30:57,634 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:30:57,635 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:30:57,637 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:30:57,637 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:30:57,639 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:30:57,639 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:30:57,641 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:30:57,641 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:30:57,641 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:30:57,642 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:30:57,643 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:30:57,646 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:30:57,668 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:30:57,669 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:30:57,670 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:30:57,670 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:30:57,670 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:30:57,670 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:30:57,672 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:30:57,672 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:30:57,672 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:30:57,673 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:30:57,673 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:30:57,673 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:30:57,673 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:30:57,674 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:30:57,674 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:30:57,674 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:30:57,674 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:30:57,674 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:30:57,675 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:30:57,676 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:30:57,676 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:30:57,676 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:30:57,677 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:30:57,677 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:30:57,677 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:30:57,677 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:30:57,678 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:30:57,678 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:30:57,678 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 11:30:57,711 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:30:57,723 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:30:57,728 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:30:57,729 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:30:57,730 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:30:57,731 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/diff-3-n-u_true-unreach-call.i [2019-05-23 11:30:57,795 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c0bf5bc/40137b8e94384c5088091ace7f7da328/FLAGb6028b883 [2019-05-23 11:30:58,255 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:30:58,255 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/diff-3-n-u_true-unreach-call.i [2019-05-23 11:30:58,262 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c0bf5bc/40137b8e94384c5088091ace7f7da328/FLAGb6028b883 [2019-05-23 11:30:58,606 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c0bf5bc/40137b8e94384c5088091ace7f7da328 [2019-05-23 11:30:58,617 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:30:58,618 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:30:58,619 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:30:58,620 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:30:58,623 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:30:58,624 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:58,627 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c5a4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58, skipping insertion in model container [2019-05-23 11:30:58,627 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:58,635 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:30:58,657 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:30:58,847 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:30:58,855 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:30:58,896 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:30:58,914 INFO L146 ILogger]: Completed translation [2019-05-23 11:30:58,915 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58 WrapperNode [2019-05-23 11:30:58,915 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:30:58,916 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:30:58,916 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:30:58,916 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:30:58,925 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:58,934 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:58,963 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:30:58,963 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:30:58,963 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:30:58,964 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:30:58,972 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:58,972 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:58,974 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:58,975 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:59,067 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:59,086 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:59,088 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (1/1) ... [2019-05-23 11:30:59,090 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:30:59,091 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:30:59,091 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:30:59,091 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:30:59,093 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (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 11:30:59,156 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:30:59,157 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:30:59,157 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:30:59,157 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:30:59,157 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:30:59,157 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:30:59,736 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:30:59,736 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:30:59,737 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:30:59 BoogieIcfgContainer [2019-05-23 11:30:59,738 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:30:59,739 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:30:59,739 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:30:59,742 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:30:59,742 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:30:58" (1/3) ... [2019-05-23 11:30:59,743 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6df148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:30:59, skipping insertion in model container [2019-05-23 11:30:59,743 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:58" (2/3) ... [2019-05-23 11:30:59,744 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6df148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:30:59, skipping insertion in model container [2019-05-23 11:30:59,744 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:30:59" (3/3) ... [2019-05-23 11:30:59,746 INFO L146 ILogger]: Analyzing ICFG diff-3-n-u_true-unreach-call.i [2019-05-23 11:30:59,755 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:30:59,765 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:30:59,783 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:30:59,815 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:30:59,816 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:30:59,816 INFO L146 ILogger]: Hoare is true [2019-05-23 11:30:59,816 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:30:59,816 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:30:59,816 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:30:59,816 INFO L146 ILogger]: Difference is false [2019-05-23 11:30:59,817 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:30:59,817 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:30:59,834 INFO L146 ILogger]: Start isEmpty. Operand 80 states. [2019-05-23 11:30:59,842 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:30:59,842 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:59,844 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:59,846 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:59,851 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:59,851 INFO L146 ILogger]: Analyzing trace with hash 1437487732, now seen corresponding path program 1 times [2019-05-23 11:30:59,853 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:59,853 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:59,894 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:59,894 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:59,894 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:59,929 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:59,929 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:59,930 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:30:59,943 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:59,980 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:59,983 INFO L146 ILogger]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:30:59,991 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:00,101 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:00,129 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:00,129 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:00,132 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:00,142 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:00,143 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:00,145 INFO L146 ILogger]: Start difference. First operand 80 states. Second operand 4 states. [2019-05-23 11:31:00,628 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:00,629 INFO L146 ILogger]: Finished difference Result 192 states and 247 transitions. [2019-05-23 11:31:00,632 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:00,633 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 38 [2019-05-23 11:31:00,634 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:00,644 INFO L146 ILogger]: With dead ends: 192 [2019-05-23 11:31:00,644 INFO L146 ILogger]: Without dead ends: 118 [2019-05-23 11:31:00,647 INFO L146 ILogger]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:00,664 INFO L146 ILogger]: Start minimizeSevpa. Operand 118 states. [2019-05-23 11:31:00,685 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 118 to 72. [2019-05-23 11:31:00,687 INFO L146 ILogger]: Start removeUnreachable. Operand 72 states. [2019-05-23 11:31:00,688 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2019-05-23 11:31:00,690 INFO L146 ILogger]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 38 [2019-05-23 11:31:00,690 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:00,690 INFO L146 ILogger]: Abstraction has 72 states and 80 transitions. [2019-05-23 11:31:00,691 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:00,691 INFO L146 ILogger]: Start isEmpty. Operand 72 states and 80 transitions. [2019-05-23 11:31:00,692 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 49 [2019-05-23 11:31:00,693 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:00,693 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] [2019-05-23 11:31:00,693 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:00,694 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:00,694 INFO L146 ILogger]: Analyzing trace with hash 2024999956, now seen corresponding path program 1 times [2019-05-23 11:31:00,694 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:00,694 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:00,695 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:00,695 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:00,696 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:00,702 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:00,702 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:00,702 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:00,718 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:00,744 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:00,745 INFO L146 ILogger]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:00,748 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:00,851 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:31:00,869 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:00,869 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:00,874 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:00,874 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:00,875 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:00,875 INFO L146 ILogger]: Start difference. First operand 72 states and 80 transitions. Second operand 4 states. [2019-05-23 11:31:01,054 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:01,054 INFO L146 ILogger]: Finished difference Result 167 states and 189 transitions. [2019-05-23 11:31:01,055 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:01,055 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 48 [2019-05-23 11:31:01,056 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:01,057 INFO L146 ILogger]: With dead ends: 167 [2019-05-23 11:31:01,057 INFO L146 ILogger]: Without dead ends: 112 [2019-05-23 11:31:01,059 INFO L146 ILogger]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:01,059 INFO L146 ILogger]: Start minimizeSevpa. Operand 112 states. [2019-05-23 11:31:01,068 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 112 to 75. [2019-05-23 11:31:01,069 INFO L146 ILogger]: Start removeUnreachable. Operand 75 states. [2019-05-23 11:31:01,070 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2019-05-23 11:31:01,070 INFO L146 ILogger]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 48 [2019-05-23 11:31:01,070 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:01,071 INFO L146 ILogger]: Abstraction has 75 states and 83 transitions. [2019-05-23 11:31:01,071 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:01,071 INFO L146 ILogger]: Start isEmpty. Operand 75 states and 83 transitions. [2019-05-23 11:31:01,073 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 57 [2019-05-23 11:31:01,073 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:01,073 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] [2019-05-23 11:31:01,073 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:01,074 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:01,074 INFO L146 ILogger]: Analyzing trace with hash 2127463893, now seen corresponding path program 1 times [2019-05-23 11:31:01,074 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:01,074 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:01,075 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:01,075 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:01,076 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:01,081 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:01,081 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:01,082 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:01,096 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:01,131 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:01,132 INFO L146 ILogger]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:01,137 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:01,251 INFO L146 ILogger]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:31:01,276 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:01,277 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:01,277 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:01,277 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:01,278 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:01,278 INFO L146 ILogger]: Start difference. First operand 75 states and 83 transitions. Second operand 4 states. [2019-05-23 11:31:01,691 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:01,692 INFO L146 ILogger]: Finished difference Result 170 states and 189 transitions. [2019-05-23 11:31:01,694 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:01,694 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 56 [2019-05-23 11:31:01,694 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:01,696 INFO L146 ILogger]: With dead ends: 170 [2019-05-23 11:31:01,696 INFO L146 ILogger]: Without dead ends: 112 [2019-05-23 11:31:01,699 INFO L146 ILogger]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:01,699 INFO L146 ILogger]: Start minimizeSevpa. Operand 112 states. [2019-05-23 11:31:01,709 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 112 to 78. [2019-05-23 11:31:01,710 INFO L146 ILogger]: Start removeUnreachable. Operand 78 states. [2019-05-23 11:31:01,711 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2019-05-23 11:31:01,711 INFO L146 ILogger]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 56 [2019-05-23 11:31:01,711 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:01,711 INFO L146 ILogger]: Abstraction has 78 states and 86 transitions. [2019-05-23 11:31:01,711 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:01,712 INFO L146 ILogger]: Start isEmpty. Operand 78 states and 86 transitions. [2019-05-23 11:31:01,713 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 70 [2019-05-23 11:31:01,714 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:01,714 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] [2019-05-23 11:31:01,714 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:01,714 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:01,715 INFO L146 ILogger]: Analyzing trace with hash -1374796928, now seen corresponding path program 1 times [2019-05-23 11:31:01,715 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:01,715 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:01,716 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:01,716 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:01,716 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:01,721 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:01,722 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:01,722 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:01,730 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:01,758 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:01,759 INFO L146 ILogger]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:01,765 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:01,866 INFO L146 ILogger]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:31:01,893 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:01,893 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:01,894 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:01,894 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:01,894 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:01,894 INFO L146 ILogger]: Start difference. First operand 78 states and 86 transitions. Second operand 5 states. [2019-05-23 11:31:02,130 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:02,131 INFO L146 ILogger]: Finished difference Result 200 states and 219 transitions. [2019-05-23 11:31:02,132 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:02,132 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 69 [2019-05-23 11:31:02,132 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:02,134 INFO L146 ILogger]: With dead ends: 200 [2019-05-23 11:31:02,134 INFO L146 ILogger]: Without dead ends: 139 [2019-05-23 11:31:02,135 INFO L146 ILogger]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:02,138 INFO L146 ILogger]: Start minimizeSevpa. Operand 139 states. [2019-05-23 11:31:02,147 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 139 to 103. [2019-05-23 11:31:02,147 INFO L146 ILogger]: Start removeUnreachable. Operand 103 states. [2019-05-23 11:31:02,148 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2019-05-23 11:31:02,148 INFO L146 ILogger]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 69 [2019-05-23 11:31:02,149 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:02,149 INFO L146 ILogger]: Abstraction has 103 states and 112 transitions. [2019-05-23 11:31:02,149 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:02,149 INFO L146 ILogger]: Start isEmpty. Operand 103 states and 112 transitions. [2019-05-23 11:31:02,152 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 83 [2019-05-23 11:31:02,152 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:02,152 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:31:02,152 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:02,153 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:02,153 INFO L146 ILogger]: Analyzing trace with hash 1586255, now seen corresponding path program 2 times [2019-05-23 11:31:02,153 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:02,153 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:02,154 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:02,154 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:02,154 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:02,159 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:02,159 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:02,159 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:02,176 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:02,208 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:31:02,208 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:02,209 INFO L146 ILogger]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:31:02,212 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:02,303 INFO L146 ILogger]: Checked inductivity of 21 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:31:02,321 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:02,321 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:31:02,322 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:31:02,322 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:31:02,322 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:31:02,323 INFO L146 ILogger]: Start difference. First operand 103 states and 112 transitions. Second operand 6 states. [2019-05-23 11:31:02,807 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:02,807 INFO L146 ILogger]: Finished difference Result 252 states and 272 transitions. [2019-05-23 11:31:02,807 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:31:02,808 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 82 [2019-05-23 11:31:02,808 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:02,810 INFO L146 ILogger]: With dead ends: 252 [2019-05-23 11:31:02,810 INFO L146 ILogger]: Without dead ends: 166 [2019-05-23 11:31:02,812 INFO L146 ILogger]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:31:02,812 INFO L146 ILogger]: Start minimizeSevpa. Operand 166 states. [2019-05-23 11:31:02,822 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 166 to 128. [2019-05-23 11:31:02,823 INFO L146 ILogger]: Start removeUnreachable. Operand 128 states. [2019-05-23 11:31:02,824 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2019-05-23 11:31:02,824 INFO L146 ILogger]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 82 [2019-05-23 11:31:02,824 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:02,824 INFO L146 ILogger]: Abstraction has 128 states and 138 transitions. [2019-05-23 11:31:02,824 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:31:02,825 INFO L146 ILogger]: Start isEmpty. Operand 128 states and 138 transitions. [2019-05-23 11:31:02,826 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 96 [2019-05-23 11:31:02,826 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:02,826 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:02,827 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:02,827 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:02,827 INFO L146 ILogger]: Analyzing trace with hash 1037724166, now seen corresponding path program 3 times [2019-05-23 11:31:02,827 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:02,827 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:02,828 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:02,828 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:02,828 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:02,833 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:02,834 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:02,834 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:02,850 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:31:02,875 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:31:02,876 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:02,877 INFO L146 ILogger]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:02,888 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:02,960 INFO L146 ILogger]: Checked inductivity of 49 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-05-23 11:31:02,986 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:02,987 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:02,987 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:02,987 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:02,988 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:02,988 INFO L146 ILogger]: Start difference. First operand 128 states and 138 transitions. Second operand 5 states. [2019-05-23 11:31:03,158 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:03,159 INFO L146 ILogger]: Finished difference Result 418 states and 453 transitions. [2019-05-23 11:31:03,161 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:03,161 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 95 [2019-05-23 11:31:03,162 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:03,163 INFO L146 ILogger]: With dead ends: 418 [2019-05-23 11:31:03,163 INFO L146 ILogger]: Without dead ends: 334 [2019-05-23 11:31:03,164 INFO L146 ILogger]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:03,165 INFO L146 ILogger]: Start minimizeSevpa. Operand 334 states. [2019-05-23 11:31:03,179 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 334 to 185. [2019-05-23 11:31:03,179 INFO L146 ILogger]: Start removeUnreachable. Operand 185 states. [2019-05-23 11:31:03,180 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 185 states to 185 states and 199 transitions. [2019-05-23 11:31:03,180 INFO L146 ILogger]: Start accepts. Automaton has 185 states and 199 transitions. Word has length 95 [2019-05-23 11:31:03,181 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:03,181 INFO L146 ILogger]: Abstraction has 185 states and 199 transitions. [2019-05-23 11:31:03,181 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:03,181 INFO L146 ILogger]: Start isEmpty. Operand 185 states and 199 transitions. [2019-05-23 11:31:03,184 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 153 [2019-05-23 11:31:03,184 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:03,184 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2019-05-23 11:31:03,185 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:03,185 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:03,185 INFO L146 ILogger]: Analyzing trace with hash -782797140, now seen corresponding path program 4 times [2019-05-23 11:31:03,185 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:03,185 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:03,186 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:03,186 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:03,187 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:03,193 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:03,193 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:03,193 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:03,213 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:31:03,931 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:31:03,931 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:03,932 INFO L146 ILogger]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:31:03,937 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:04,020 INFO L146 ILogger]: Checked inductivity of 249 backedges. 69 proven. 21 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2019-05-23 11:31:04,039 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:04,039 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:31:04,040 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:31:04,040 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:31:04,040 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:04,041 INFO L146 ILogger]: Start difference. First operand 185 states and 199 transitions. Second operand 7 states. [2019-05-23 11:31:04,496 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:04,496 INFO L146 ILogger]: Finished difference Result 437 states and 468 transitions. [2019-05-23 11:31:04,496 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:31:04,496 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 152 [2019-05-23 11:31:04,497 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:04,498 INFO L146 ILogger]: With dead ends: 437 [2019-05-23 11:31:04,498 INFO L146 ILogger]: Without dead ends: 272 [2019-05-23 11:31:04,499 INFO L146 ILogger]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:04,499 INFO L146 ILogger]: Start minimizeSevpa. Operand 272 states. [2019-05-23 11:31:04,511 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 272 to 223. [2019-05-23 11:31:04,512 INFO L146 ILogger]: Start removeUnreachable. Operand 223 states. [2019-05-23 11:31:04,513 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2019-05-23 11:31:04,513 INFO L146 ILogger]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 152 [2019-05-23 11:31:04,513 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:04,514 INFO L146 ILogger]: Abstraction has 223 states and 238 transitions. [2019-05-23 11:31:04,514 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:31:04,514 INFO L146 ILogger]: Start isEmpty. Operand 223 states and 238 transitions. [2019-05-23 11:31:04,516 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 179 [2019-05-23 11:31:04,517 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:04,517 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-05-23 11:31:04,517 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:04,517 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:04,518 INFO L146 ILogger]: Analyzing trace with hash 569715284, now seen corresponding path program 5 times [2019-05-23 11:31:04,518 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:04,518 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:04,519 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:04,519 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:04,519 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:04,525 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:04,526 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:04,526 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:04,542 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1