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/copy-partial-2-n-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:30:51,803 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:30:51,807 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:30:51,820 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:30:51,821 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:30:51,822 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:30:51,823 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:30:51,826 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:30:51,828 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:30:51,830 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:30:51,831 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:30:51,832 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:30:51,833 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:30:51,834 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:30:51,836 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:30:51,837 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:30:51,837 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:30:51,839 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:30:51,841 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:30:51,843 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:30:51,844 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:30:51,846 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:30:51,848 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:30:51,848 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:30:51,849 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:30:51,850 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:30:51,850 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:30:51,851 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:30:51,852 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:30:51,853 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:30:51,853 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:30:51,854 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:30:51,856 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:30:51,856 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:30:51,857 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:30:51,857 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:30:51,857 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:30:51,858 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:30:51,859 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:30:51,859 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:30:51,874 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:30:51,874 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:30:51,876 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:30:51,876 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:30:51,876 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:30:51,876 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:30:51,876 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:30:51,877 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:30:51,877 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:30:51,877 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:30:51,877 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:30:51,877 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:30:51,878 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:30:51,878 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:30:51,878 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:30:51,878 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:30:51,878 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:30:51,879 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:30:51,879 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:30:51,879 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:30:51,879 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:30:51,879 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:30:51,880 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:30:51,880 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:30:51,880 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:30:51,880 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:30:51,880 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:30:51,881 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:30:51,881 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 11:30:51,922 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:30:51,937 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:30:51,941 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:30:51,942 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:30:51,942 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:30:51,943 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/copy-partial-2-n-u_true-unreach-call.i [2019-05-23 11:30:52,000 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb0a920e/66c21ef4df324b24973b260a34de13e3/FLAG14d3e5bbe [2019-05-23 11:30:52,406 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:30:52,407 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/copy-partial-2-n-u_true-unreach-call.i [2019-05-23 11:30:52,414 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb0a920e/66c21ef4df324b24973b260a34de13e3/FLAG14d3e5bbe [2019-05-23 11:30:52,799 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb0a920e/66c21ef4df324b24973b260a34de13e3 [2019-05-23 11:30:52,808 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:30:52,809 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:30:52,810 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:30:52,811 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:30:52,814 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:30:52,815 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:30:52" (1/1) ... [2019-05-23 11:30:52,818 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e435504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:52, skipping insertion in model container [2019-05-23 11:30:52,818 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:30:52" (1/1) ... [2019-05-23 11:30:52,825 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:30:52,849 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:30:53,078 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:30:53,082 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:30:53,108 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:30:53,127 INFO L146 ILogger]: Completed translation [2019-05-23 11:30:53,127 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53 WrapperNode [2019-05-23 11:30:53,127 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:30:53,128 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:30:53,128 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:30:53,128 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:30:53,135 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,143 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,165 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:30:53,165 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:30:53,165 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:30:53,166 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:30:53,174 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,174 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,176 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,176 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,182 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,281 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,282 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (1/1) ... [2019-05-23 11:30:53,284 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:30:53,285 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:30:53,285 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:30:53,285 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:30:53,286 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (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 11:30:53,349 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:30:53,350 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:30:53,350 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:30:53,350 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:30:53,350 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:30:53,350 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:30:53,848 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:30:53,848 INFO L146 ILogger]: Removed 12 assume(true) statements. [2019-05-23 11:30:53,849 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:30:53 BoogieIcfgContainer [2019-05-23 11:30:53,850 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:30:53,851 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:30:53,851 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:30:53,854 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:30:53,854 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:30:52" (1/3) ... [2019-05-23 11:30:53,855 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4d3d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:30:53, skipping insertion in model container [2019-05-23 11:30:53,855 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:53" (2/3) ... [2019-05-23 11:30:53,856 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4d3d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:30:53, skipping insertion in model container [2019-05-23 11:30:53,856 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:30:53" (3/3) ... [2019-05-23 11:30:53,857 INFO L146 ILogger]: Analyzing ICFG copy-partial-2-n-u_true-unreach-call.i [2019-05-23 11:30:53,867 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:30:53,875 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:30:53,892 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:30:53,920 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:30:53,921 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:30:53,921 INFO L146 ILogger]: Hoare is true [2019-05-23 11:30:53,921 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:30:53,921 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:30:53,922 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:30:53,922 INFO L146 ILogger]: Difference is false [2019-05-23 11:30:53,922 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:30:53,922 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:30:53,937 INFO L146 ILogger]: Start isEmpty. Operand 59 states. [2019-05-23 11:30:53,944 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 33 [2019-05-23 11:30:53,945 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:53,946 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] [2019-05-23 11:30:53,948 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:53,953 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:53,954 INFO L146 ILogger]: Analyzing trace with hash -12791313, now seen corresponding path program 1 times [2019-05-23 11:30:53,956 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:53,956 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:54,000 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:54,000 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:54,000 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:54,031 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:54,031 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:54,032 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 11:30:54,052 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:54,091 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:54,094 INFO L146 ILogger]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:30:54,101 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:54,187 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 11:30:54,216 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:30:54,217 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:30:54,221 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:30:54,234 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:30:54,235 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:30:54,238 INFO L146 ILogger]: Start difference. First operand 59 states. Second operand 4 states. [2019-05-23 11:30:54,587 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:54,589 INFO L146 ILogger]: Finished difference Result 142 states and 178 transitions. [2019-05-23 11:30:54,590 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:30:54,591 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 32 [2019-05-23 11:30:54,591 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:54,602 INFO L146 ILogger]: With dead ends: 142 [2019-05-23 11:30:54,602 INFO L146 ILogger]: Without dead ends: 83 [2019-05-23 11:30:54,605 INFO L146 ILogger]: 0 DeclaredPredicates, 31 GetRequests, 29 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 11:30:54,621 INFO L146 ILogger]: Start minimizeSevpa. Operand 83 states. [2019-05-23 11:30:54,641 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 83 to 52. [2019-05-23 11:30:54,642 INFO L146 ILogger]: Start removeUnreachable. Operand 52 states. [2019-05-23 11:30:54,644 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2019-05-23 11:30:54,645 INFO L146 ILogger]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 32 [2019-05-23 11:30:54,646 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:54,646 INFO L146 ILogger]: Abstraction has 52 states and 57 transitions. [2019-05-23 11:30:54,646 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:30:54,646 INFO L146 ILogger]: Start isEmpty. Operand 52 states and 57 transitions. [2019-05-23 11:30:54,648 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 37 [2019-05-23 11:30:54,648 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:54,648 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] [2019-05-23 11:30:54,649 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:54,649 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:54,649 INFO L146 ILogger]: Analyzing trace with hash 1573421690, now seen corresponding path program 1 times [2019-05-23 11:30:54,649 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:54,650 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:54,651 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:54,651 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:54,651 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:54,657 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:54,658 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:54,658 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 11:30:54,676 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:54,721 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:54,722 INFO L146 ILogger]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:30:54,725 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:54,867 INFO L146 ILogger]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:30:54,896 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:30:54,896 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:30:54,900 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:30:54,901 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:30:54,901 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:30:54,901 INFO L146 ILogger]: Start difference. First operand 52 states and 57 transitions. Second operand 4 states. [2019-05-23 11:30:55,152 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:55,153 INFO L146 ILogger]: Finished difference Result 118 states and 132 transitions. [2019-05-23 11:30:55,156 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:30:55,156 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 36 [2019-05-23 11:30:55,157 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:55,158 INFO L146 ILogger]: With dead ends: 118 [2019-05-23 11:30:55,158 INFO L146 ILogger]: Without dead ends: 83 [2019-05-23 11:30:55,159 INFO L146 ILogger]: 0 DeclaredPredicates, 35 GetRequests, 33 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 11:30:55,160 INFO L146 ILogger]: Start minimizeSevpa. Operand 83 states. [2019-05-23 11:30:55,167 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 83 to 53. [2019-05-23 11:30:55,167 INFO L146 ILogger]: Start removeUnreachable. Operand 53 states. [2019-05-23 11:30:55,168 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2019-05-23 11:30:55,169 INFO L146 ILogger]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 36 [2019-05-23 11:30:55,169 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:55,169 INFO L146 ILogger]: Abstraction has 53 states and 58 transitions. [2019-05-23 11:30:55,169 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:30:55,170 INFO L146 ILogger]: Start isEmpty. Operand 53 states and 58 transitions. [2019-05-23 11:30:55,171 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 42 [2019-05-23 11:30:55,171 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:55,171 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] [2019-05-23 11:30:55,172 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:55,172 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:55,172 INFO L146 ILogger]: Analyzing trace with hash 1391442571, now seen corresponding path program 1 times [2019-05-23 11:30:55,172 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:55,172 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:55,173 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:55,174 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:55,174 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:55,179 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:55,180 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:55,180 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:30:55,192 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:55,212 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:55,214 INFO L146 ILogger]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:30:55,218 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:55,279 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:30:55,302 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:55,302 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:30:55,303 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:30:55,303 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:30:55,304 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:30:55,305 INFO L146 ILogger]: Start difference. First operand 53 states and 58 transitions. Second operand 5 states. [2019-05-23 11:30:55,681 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:55,681 INFO L146 ILogger]: Finished difference Result 149 states and 166 transitions. [2019-05-23 11:30:55,682 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:30:55,682 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 41 [2019-05-23 11:30:55,682 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:55,685 INFO L146 ILogger]: With dead ends: 149 [2019-05-23 11:30:55,685 INFO L146 ILogger]: Without dead ends: 113 [2019-05-23 11:30:55,686 INFO L146 ILogger]: 0 DeclaredPredicates, 40 GetRequests, 37 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 11:30:55,686 INFO L146 ILogger]: Start minimizeSevpa. Operand 113 states. [2019-05-23 11:30:55,694 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 113 to 58. [2019-05-23 11:30:55,695 INFO L146 ILogger]: Start removeUnreachable. Operand 58 states. [2019-05-23 11:30:55,696 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2019-05-23 11:30:55,696 INFO L146 ILogger]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 41 [2019-05-23 11:30:55,696 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:55,696 INFO L146 ILogger]: Abstraction has 58 states and 63 transitions. [2019-05-23 11:30:55,696 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:30:55,697 INFO L146 ILogger]: Start isEmpty. Operand 58 states and 63 transitions. [2019-05-23 11:30:55,698 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 47 [2019-05-23 11:30:55,698 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:55,698 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:30:55,698 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:55,699 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:55,699 INFO L146 ILogger]: Analyzing trace with hash 713942298, now seen corresponding path program 2 times [2019-05-23 11:30:55,699 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:55,699 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:55,700 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:55,700 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:55,700 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:55,705 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:55,705 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:55,706 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 11:30:55,722 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:30:55,745 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-05-23 11:30:55,746 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:55,746 INFO L146 ILogger]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:30:55,749 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:55,851 INFO L146 ILogger]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:30:55,878 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:30:55,879 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:30:55,879 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:30:55,879 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:30:55,880 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:30:55,880 INFO L146 ILogger]: Start difference. First operand 58 states and 63 transitions. Second operand 4 states. [2019-05-23 11:30:56,018 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:56,018 INFO L146 ILogger]: Finished difference Result 111 states and 121 transitions. [2019-05-23 11:30:56,021 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:30:56,021 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 46 [2019-05-23 11:30:56,022 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:56,023 INFO L146 ILogger]: With dead ends: 111 [2019-05-23 11:30:56,023 INFO L146 ILogger]: Without dead ends: 94 [2019-05-23 11:30:56,023 INFO L146 ILogger]: 0 DeclaredPredicates, 45 GetRequests, 43 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 11:30:56,024 INFO L146 ILogger]: Start minimizeSevpa. Operand 94 states. [2019-05-23 11:30:56,033 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 94 to 59. [2019-05-23 11:30:56,034 INFO L146 ILogger]: Start removeUnreachable. Operand 59 states. [2019-05-23 11:30:56,034 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-05-23 11:30:56,035 INFO L146 ILogger]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 46 [2019-05-23 11:30:56,035 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:56,035 INFO L146 ILogger]: Abstraction has 59 states and 64 transitions. [2019-05-23 11:30:56,035 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:30:56,035 INFO L146 ILogger]: Start isEmpty. Operand 59 states and 64 transitions. [2019-05-23 11:30:56,041 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 51 [2019-05-23 11:30:56,041 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:56,041 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:30:56,042 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:56,042 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:56,042 INFO L146 ILogger]: Analyzing trace with hash 2131088879, now seen corresponding path program 1 times [2019-05-23 11:30:56,042 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:56,043 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:56,043 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:56,044 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:56,044 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:56,051 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:56,052 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:56,052 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 11:30:56,063 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:56,084 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:56,085 INFO L146 ILogger]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:30:56,087 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:56,170 INFO L146 ILogger]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:30:56,199 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:56,200 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:30:56,200 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:30:56,200 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:30:56,200 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:30:56,201 INFO L146 ILogger]: Start difference. First operand 59 states and 64 transitions. Second operand 6 states. [2019-05-23 11:30:56,888 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:56,889 INFO L146 ILogger]: Finished difference Result 186 states and 206 transitions. [2019-05-23 11:30:56,889 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:30:56,889 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 50 [2019-05-23 11:30:56,890 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:56,891 INFO L146 ILogger]: With dead ends: 186 [2019-05-23 11:30:56,891 INFO L146 ILogger]: Without dead ends: 144 [2019-05-23 11:30:56,892 INFO L146 ILogger]: 0 DeclaredPredicates, 49 GetRequests, 45 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 11:30:56,893 INFO L146 ILogger]: Start minimizeSevpa. Operand 144 states. [2019-05-23 11:30:56,900 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 144 to 64. [2019-05-23 11:30:56,900 INFO L146 ILogger]: Start removeUnreachable. Operand 64 states. [2019-05-23 11:30:56,904 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2019-05-23 11:30:56,904 INFO L146 ILogger]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 50 [2019-05-23 11:30:56,905 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:56,905 INFO L146 ILogger]: Abstraction has 64 states and 69 transitions. [2019-05-23 11:30:56,905 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:30:56,905 INFO L146 ILogger]: Start isEmpty. Operand 64 states and 69 transitions. [2019-05-23 11:30:56,906 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 56 [2019-05-23 11:30:56,906 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:56,907 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:30:56,907 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:56,907 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:56,907 INFO L146 ILogger]: Analyzing trace with hash -625140672, now seen corresponding path program 2 times [2019-05-23 11:30:56,908 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:56,908 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:56,909 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:56,911 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:56,911 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:56,917 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:56,917 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:56,918 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 11:30:56,933 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:30:56,957 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:30:56,958 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:56,959 INFO L146 ILogger]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:30:56,961 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:57,178 INFO L146 ILogger]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-05-23 11:30:57,198 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:57,198 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:30:57,199 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:30:57,199 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:30:57,200 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:30:57,200 INFO L146 ILogger]: Start difference. First operand 64 states and 69 transitions. Second operand 5 states. [2019-05-23 11:30:57,379 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:57,380 INFO L146 ILogger]: Finished difference Result 175 states and 191 transitions. [2019-05-23 11:30:57,380 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:30:57,380 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 55 [2019-05-23 11:30:57,380 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:57,382 INFO L146 ILogger]: With dead ends: 175 [2019-05-23 11:30:57,382 INFO L146 ILogger]: Without dead ends: 147 [2019-05-23 11:30:57,383 INFO L146 ILogger]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:30:57,384 INFO L146 ILogger]: Start minimizeSevpa. Operand 147 states. [2019-05-23 11:30:57,392 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 147 to 83. [2019-05-23 11:30:57,392 INFO L146 ILogger]: Start removeUnreachable. Operand 83 states. [2019-05-23 11:30:57,393 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2019-05-23 11:30:57,393 INFO L146 ILogger]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 55 [2019-05-23 11:30:57,393 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:57,393 INFO L146 ILogger]: Abstraction has 83 states and 89 transitions. [2019-05-23 11:30:57,394 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:30:57,394 INFO L146 ILogger]: Start isEmpty. Operand 83 states and 89 transitions. [2019-05-23 11:30:57,395 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 75 [2019-05-23 11:30:57,395 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:57,395 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 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] [2019-05-23 11:30:57,395 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:57,395 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:57,396 INFO L146 ILogger]: Analyzing trace with hash -2082113852, now seen corresponding path program 3 times [2019-05-23 11:30:57,396 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:57,396 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:57,397 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:57,397 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:57,397 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:57,401 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:57,402 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:57,402 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 11:30:57,412 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:30:57,431 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:30:57,431 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:57,432 INFO L146 ILogger]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:30:57,435 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:57,494 INFO L146 ILogger]: Checked inductivity of 94 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-05-23 11:30:57,513 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:30:57,513 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:30:57,514 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:30:57,514 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:30:57,514 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:30:57,515 INFO L146 ILogger]: Start difference. First operand 83 states and 89 transitions. Second operand 4 states. [2019-05-23 11:30:57,648 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:57,649 INFO L146 ILogger]: Finished difference Result 128 states and 139 transitions. [2019-05-23 11:30:57,649 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:30:57,649 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 74 [2019-05-23 11:30:57,650 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:57,651 INFO L146 ILogger]: With dead ends: 128 [2019-05-23 11:30:57,651 INFO L146 ILogger]: Without dead ends: 103 [2019-05-23 11:30:57,652 INFO L146 ILogger]: 0 DeclaredPredicates, 73 GetRequests, 71 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 11:30:57,652 INFO L146 ILogger]: Start minimizeSevpa. Operand 103 states. [2019-05-23 11:30:57,661 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 103 to 85. [2019-05-23 11:30:57,661 INFO L146 ILogger]: Start removeUnreachable. Operand 85 states. [2019-05-23 11:30:57,662 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2019-05-23 11:30:57,662 INFO L146 ILogger]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 74 [2019-05-23 11:30:57,663 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:57,663 INFO L146 ILogger]: Abstraction has 85 states and 91 transitions. [2019-05-23 11:30:57,663 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:30:57,663 INFO L146 ILogger]: Start isEmpty. Operand 85 states and 91 transitions. [2019-05-23 11:30:57,664 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 80 [2019-05-23 11:30:57,665 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:57,665 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 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] [2019-05-23 11:30:57,665 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:57,665 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:57,666 INFO L146 ILogger]: Analyzing trace with hash 148628863, now seen corresponding path program 1 times [2019-05-23 11:30:57,666 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:57,666 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:57,667 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:57,667 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:57,667 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:57,672 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:57,673 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:57,673 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 11:30:57,684 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:57,717 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:57,718 INFO L146 ILogger]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:30:57,721 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:58,264 INFO L146 ILogger]: Checked inductivity of 95 backedges. 55 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-05-23 11:30:58,284 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:58,284 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:30:58,284 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:30:58,284 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:30:58,285 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:30:58,285 INFO L146 ILogger]: Start difference. First operand 85 states and 91 transitions. Second operand 7 states. [2019-05-23 11:30:58,695 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:58,695 INFO L146 ILogger]: Finished difference Result 247 states and 269 transitions. [2019-05-23 11:30:58,696 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:30:58,696 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 79 [2019-05-23 11:30:58,696 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:58,697 INFO L146 ILogger]: With dead ends: 247 [2019-05-23 11:30:58,697 INFO L146 ILogger]: Without dead ends: 196 [2019-05-23 11:30:58,699 INFO L146 ILogger]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:30:58,699 INFO L146 ILogger]: Start minimizeSevpa. Operand 196 states. [2019-05-23 11:30:58,706 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 196 to 95. [2019-05-23 11:30:58,707 INFO L146 ILogger]: Start removeUnreachable. Operand 95 states. [2019-05-23 11:30:58,707 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 95 states to 95 states and 101 transitions. [2019-05-23 11:30:58,708 INFO L146 ILogger]: Start accepts. Automaton has 95 states and 101 transitions. Word has length 79 [2019-05-23 11:30:58,708 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:58,708 INFO L146 ILogger]: Abstraction has 95 states and 101 transitions. [2019-05-23 11:30:58,708 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:30:58,708 INFO L146 ILogger]: Start isEmpty. Operand 95 states and 101 transitions. [2019-05-23 11:30:58,710 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 90 [2019-05-23 11:30:58,710 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:58,710 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 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] [2019-05-23 11:30:58,710 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:58,710 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:58,711 INFO L146 ILogger]: Analyzing trace with hash -860415447, now seen corresponding path program 2 times [2019-05-23 11:30:58,711 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:58,711 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:58,712 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:58,712 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:58,712 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:58,717 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:58,717 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:58,717 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 11:30:58,734 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:30:58,761 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:30:58,762 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:58,763 INFO L146 ILogger]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:30:58,765 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:58,912 INFO L146 ILogger]: Checked inductivity of 164 backedges. 92 proven. 34 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-05-23 11:30:58,932 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:58,932 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-05-23 11:30:58,932 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:30:58,932 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:30:58,933 INFO L146 ILogger]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:30:58,933 INFO L146 ILogger]: Start difference. First operand 95 states and 101 transitions. Second operand 8 states. [2019-05-23 11:30:59,236 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:59,236 INFO L146 ILogger]: Finished difference Result 287 states and 312 transitions. [2019-05-23 11:30:59,236 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:30:59,236 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 89 [2019-05-23 11:30:59,237 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:59,238 INFO L146 ILogger]: With dead ends: 287 [2019-05-23 11:30:59,239 INFO L146 ILogger]: Without dead ends: 231 [2019-05-23 11:30:59,240 INFO L146 ILogger]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:30:59,240 INFO L146 ILogger]: Start minimizeSevpa. Operand 231 states. [2019-05-23 11:30:59,256 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 231 to 105. [2019-05-23 11:30:59,256 INFO L146 ILogger]: Start removeUnreachable. Operand 105 states. [2019-05-23 11:30:59,256 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2019-05-23 11:30:59,257 INFO L146 ILogger]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 89 [2019-05-23 11:30:59,257 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:59,257 INFO L146 ILogger]: Abstraction has 105 states and 111 transitions. [2019-05-23 11:30:59,257 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:30:59,257 INFO L146 ILogger]: Start isEmpty. Operand 105 states and 111 transitions. [2019-05-23 11:30:59,259 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 100 [2019-05-23 11:30:59,260 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:59,260 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 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] [2019-05-23 11:30:59,260 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:59,260 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:59,266 INFO L146 ILogger]: Analyzing trace with hash 1646108287, now seen corresponding path program 3 times [2019-05-23 11:30:59,266 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:59,266 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:59,267 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:59,267 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:59,267 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:59,273 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:59,273 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:59,273 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:30:59,293 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:30:59,311 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:30:59,312 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:59,312 INFO L146 ILogger]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:30:59,315 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:59,380 INFO L146 ILogger]: Checked inductivity of 253 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2019-05-23 11:30:59,399 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:59,399 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:30:59,399 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:30:59,399 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:30:59,400 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:30:59,400 INFO L146 ILogger]: Start difference. First operand 105 states and 111 transitions. Second operand 5 states. [2019-05-23 11:30:59,730 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:59,731 INFO L146 ILogger]: Finished difference Result 200 states and 213 transitions. [2019-05-23 11:30:59,731 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:30:59,731 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 99 [2019-05-23 11:30:59,731 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:59,732 INFO L146 ILogger]: With dead ends: 200 [2019-05-23 11:30:59,733 INFO L146 ILogger]: Without dead ends: 182 [2019-05-23 11:30:59,733 INFO L146 ILogger]: 0 DeclaredPredicates, 98 GetRequests, 95 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 11:30:59,733 INFO L146 ILogger]: Start minimizeSevpa. Operand 182 states. [2019-05-23 11:30:59,740 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 182 to 114. [2019-05-23 11:30:59,740 INFO L146 ILogger]: Start removeUnreachable. Operand 114 states. [2019-05-23 11:30:59,741 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 114 states to 114 states and 121 transitions. [2019-05-23 11:30:59,741 INFO L146 ILogger]: Start accepts. Automaton has 114 states and 121 transitions. Word has length 99 [2019-05-23 11:30:59,741 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:59,741 INFO L146 ILogger]: Abstraction has 114 states and 121 transitions. [2019-05-23 11:30:59,742 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:30:59,742 INFO L146 ILogger]: Start isEmpty. Operand 114 states and 121 transitions. [2019-05-23 11:30:59,743 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 109 [2019-05-23 11:30:59,743 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:59,743 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 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] [2019-05-23 11:30:59,743 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:59,744 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:59,744 INFO L146 ILogger]: Analyzing trace with hash -1266069137, now seen corresponding path program 4 times [2019-05-23 11:30:59,744 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:59,744 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:59,745 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:59,745 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:59,746 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:59,750 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:59,750 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:59,750 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 11:30:59,773 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:30:59,797 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:30:59,797 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:59,798 INFO L146 ILogger]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:30:59,799 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:59,909 INFO L146 ILogger]: Checked inductivity of 266 backedges. 13 proven. 141 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-05-23 11:30:59,929 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:59,929 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:30:59,930 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:30:59,930 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:30:59,930 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:30:59,930 INFO L146 ILogger]: Start difference. First operand 114 states and 121 transitions. Second operand 9 states. [2019-05-23 11:31:00,237 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:00,237 INFO L146 ILogger]: Finished difference Result 276 states and 296 transitions. [2019-05-23 11:31:00,244 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:31:00,244 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 108 [2019-05-23 11:31:00,244 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:00,246 INFO L146 ILogger]: With dead ends: 276 [2019-05-23 11:31:00,247 INFO L146 ILogger]: Without dead ends: 237 [2019-05-23 11:31:00,247 INFO L146 ILogger]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:31:00,248 INFO L146 ILogger]: Start minimizeSevpa. Operand 237 states. [2019-05-23 11:31:00,255 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 237 to 143. [2019-05-23 11:31:00,255 INFO L146 ILogger]: Start removeUnreachable. Operand 143 states. [2019-05-23 11:31:00,256 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 143 states to 143 states and 151 transitions. [2019-05-23 11:31:00,256 INFO L146 ILogger]: Start accepts. Automaton has 143 states and 151 transitions. Word has length 108 [2019-05-23 11:31:00,256 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:00,257 INFO L146 ILogger]: Abstraction has 143 states and 151 transitions. [2019-05-23 11:31:00,257 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:31:00,257 INFO L146 ILogger]: Start isEmpty. Operand 143 states and 151 transitions. [2019-05-23 11:31:00,259 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 138 [2019-05-23 11:31:00,259 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:00,259 INFO L146 ILogger]: trace histogram [15, 15, 15, 15, 15, 3, 3, 3, 3, 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] [2019-05-23 11:31:00,260 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:00,261 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:00,261 INFO L146 ILogger]: Analyzing trace with hash -668370229, now seen corresponding path program 5 times [2019-05-23 11:31:00,261 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:00,261 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:00,262 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:00,262 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:00,263 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:00,270 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:00,270 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:00,270 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:31:00,284 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1