java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/termination/churchNum01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:27:49,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:27:49,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:27:49,997 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:27:49,997 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:27:49,998 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:27:49,999 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:27:50,001 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:27:50,002 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:27:50,003 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:27:50,004 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:27:50,004 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:27:50,005 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:27:50,006 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:27:50,007 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:27:50,007 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:27:50,009 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:27:50,013 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:27:50,015 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:27:50,016 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:27:50,017 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:27:50,019 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:27:50,020 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:27:50,020 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:27:50,021 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:27:50,022 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:27:50,022 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:27:50,023 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:27:50,024 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:27:50,025 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:27:50,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:27:50,026 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:27:50,026 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:27:50,027 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:27:50,028 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:27:50,028 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:27:50,042 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:27:50,042 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:27:50,042 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:27:50,043 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:27:50,044 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:27:50,044 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:27:50,044 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:27:50,044 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:27:50,045 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:27:50,045 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:27:50,045 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:27:50,045 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:27:50,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:27:50,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:27:50,046 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:27:50,047 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:27:50,047 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:27:50,047 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:27:50,047 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:27:50,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:27:50,048 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:27:50,049 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:27:50,049 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:27:50,091 INFO ]: Repository-Root is: /tmp [2018-06-24 21:27:50,106 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:27:50,111 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:27:50,112 INFO ]: Initializing SmtParser... [2018-06-24 21:27:50,112 INFO ]: SmtParser initialized [2018-06-24 21:27:50,113 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/churchNum01.smt2 [2018-06-24 21:27:50,114 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-06-24 21:27:50,203 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/churchNum01.smt2 unknown [2018-06-24 21:27:50,979 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/churchNum01.smt2 [2018-06-24 21:27:50,984 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:27:50,989 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:27:50,989 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:27:50,989 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:27:50,990 INFO ]: ChcToBoogie initialized [2018-06-24 21:27:50,993 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:27:50" (1/1) ... [2018-06-24 21:27:51,078 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51 Unit [2018-06-24 21:27:51,078 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:27:51,079 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:27:51,079 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:27:51,079 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:27:51,100 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... [2018-06-24 21:27:51,100 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... [2018-06-24 21:27:51,124 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... [2018-06-24 21:27:51,125 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... [2018-06-24 21:27:51,145 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... [2018-06-24 21:27:51,153 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... [2018-06-24 21:27:51,156 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... [2018-06-24 21:27:51,162 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:27:51,162 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:27:51,162 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:27:51,162 INFO ]: RCFGBuilder initialized [2018-06-24 21:27:51,163 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-24 21:27:51,182 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:27:51,182 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:27:51,182 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:27:51,182 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:27:51,182 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:27:51,182 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:27:52,782 INFO ]: Using library mode [2018-06-24 21:27:52,783 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:27:52 BoogieIcfgContainer [2018-06-24 21:27:52,783 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:27:52,783 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:27:52,783 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:27:52,784 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:27:52,786 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:27:52" (1/1) ... [2018-06-24 21:27:52,820 INFO ]: Initial Icfg 89 locations, 134 edges [2018-06-24 21:27:52,822 INFO ]: Using Remove infeasible edges [2018-06-24 21:27:52,822 INFO ]: Using Maximize final states [2018-06-24 21:27:52,823 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:27:52,823 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:27:52,825 INFO ]: Using Remove sink states [2018-06-24 21:27:52,825 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:27:52,826 INFO ]: Using Use SBE [2018-06-24 21:27:52,841 INFO ]: SBE split 0 edges [2018-06-24 21:27:52,855 INFO ]: Removed 5 edges and 2 locations because of local infeasibility [2018-06-24 21:27:52,857 INFO ]: 0 new accepting states [2018-06-24 21:27:53,619 INFO ]: Removed 124 edges and 39 locations by large block encoding [2018-06-24 21:27:53,621 INFO ]: Removed 3 edges and 3 locations by removing sink states [2018-06-24 21:27:53,623 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:27:53,623 INFO ]: 0 new accepting states [2018-06-24 21:27:53,624 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:27:53,625 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:27:53,625 INFO ]: Encoded RCFG 45 locations, 88 edges [2018-06-24 21:27:53,626 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:27:53 BasicIcfg [2018-06-24 21:27:53,626 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:27:53,627 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:27:53,627 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:27:53,630 INFO ]: TraceAbstraction initialized [2018-06-24 21:27:53,630 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:27:50" (1/4) ... [2018-06-24 21:27:53,631 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74124704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:27:53, skipping insertion in model container [2018-06-24 21:27:53,631 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:51" (2/4) ... [2018-06-24 21:27:53,631 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74124704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:27:53, skipping insertion in model container [2018-06-24 21:27:53,631 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:27:52" (3/4) ... [2018-06-24 21:27:53,631 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74124704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:27:53, skipping insertion in model container [2018-06-24 21:27:53,631 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:27:53" (4/4) ... [2018-06-24 21:27:53,633 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:27:53,642 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:27:53,650 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:27:53,692 INFO ]: Using default assertion order modulation [2018-06-24 21:27:53,693 INFO ]: Interprodecural is true [2018-06-24 21:27:53,693 INFO ]: Hoare is false [2018-06-24 21:27:53,693 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:27:53,693 INFO ]: Backedges is TWOTRACK [2018-06-24 21:27:53,693 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:27:53,693 INFO ]: Difference is false [2018-06-24 21:27:53,693 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:27:53,693 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:27:53,706 INFO ]: Start isEmpty. Operand 45 states. [2018-06-24 21:27:53,730 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 21:27:53,730 INFO ]: Found error trace [2018-06-24 21:27:53,731 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 21:27:53,732 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:53,737 INFO ]: Analyzing trace with hash 3212949, now seen corresponding path program 1 times [2018-06-24 21:27:53,738 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:53,739 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:53,773 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:53,773 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:53,773 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:53,813 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:53,916 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:27:53,918 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:53,919 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:53,920 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:53,935 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:53,936 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:53,939 INFO ]: Start difference. First operand 45 states. Second operand 3 states. [2018-06-24 21:27:54,713 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:54,713 INFO ]: Finished difference Result 49 states and 110 transitions. [2018-06-24 21:27:54,713 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:54,714 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 21:27:54,714 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:54,727 INFO ]: With dead ends: 49 [2018-06-24 21:27:54,727 INFO ]: Without dead ends: 47 [2018-06-24 21:27:54,728 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:54,741 INFO ]: Start minimizeSevpa. Operand 47 states. [2018-06-24 21:27:54,778 INFO ]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-06-24 21:27:54,780 INFO ]: Start removeUnreachable. Operand 47 states. [2018-06-24 21:27:54,783 INFO ]: Finished removeUnreachable. Reduced from 47 states to 47 states and 104 transitions. [2018-06-24 21:27:54,785 INFO ]: Start accepts. Automaton has 47 states and 104 transitions. Word has length 4 [2018-06-24 21:27:54,785 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:54,786 INFO ]: Abstraction has 47 states and 104 transitions. [2018-06-24 21:27:54,786 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:54,786 INFO ]: Start isEmpty. Operand 47 states and 104 transitions. [2018-06-24 21:27:54,796 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 21:27:54,796 INFO ]: Found error trace [2018-06-24 21:27:54,797 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:54,797 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:54,797 INFO ]: Analyzing trace with hash 701999979, now seen corresponding path program 1 times [2018-06-24 21:27:54,797 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:54,797 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:54,798 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:54,798 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:54,798 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:54,811 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:54,885 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:27:54,885 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:54,885 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:54,886 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:54,886 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:54,887 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:54,887 INFO ]: Start difference. First operand 47 states and 104 transitions. Second operand 3 states. [2018-06-24 21:27:55,431 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:55,431 INFO ]: Finished difference Result 51 states and 125 transitions. [2018-06-24 21:27:55,432 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:55,432 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-24 21:27:55,432 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:55,436 INFO ]: With dead ends: 51 [2018-06-24 21:27:55,436 INFO ]: Without dead ends: 51 [2018-06-24 21:27:55,437 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:55,437 INFO ]: Start minimizeSevpa. Operand 51 states. [2018-06-24 21:27:55,447 INFO ]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-06-24 21:27:55,447 INFO ]: Start removeUnreachable. Operand 51 states. [2018-06-24 21:27:55,452 INFO ]: Finished removeUnreachable. Reduced from 51 states to 51 states and 125 transitions. [2018-06-24 21:27:55,452 INFO ]: Start accepts. Automaton has 51 states and 125 transitions. Word has length 8 [2018-06-24 21:27:55,452 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:55,452 INFO ]: Abstraction has 51 states and 125 transitions. [2018-06-24 21:27:55,452 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:55,452 INFO ]: Start isEmpty. Operand 51 states and 125 transitions. [2018-06-24 21:27:55,460 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 21:27:55,460 INFO ]: Found error trace [2018-06-24 21:27:55,460 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:55,460 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:55,460 INFO ]: Analyzing trace with hash -645354056, now seen corresponding path program 1 times [2018-06-24 21:27:55,460 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:55,460 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:55,461 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:55,461 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:55,461 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:55,499 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:55,582 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:27:55,583 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:55,583 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:55,583 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:55,583 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:55,583 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:55,583 INFO ]: Start difference. First operand 51 states and 125 transitions. Second operand 3 states. [2018-06-24 21:27:56,022 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:56,022 INFO ]: Finished difference Result 55 states and 100 transitions. [2018-06-24 21:27:56,022 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:56,022 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-24 21:27:56,022 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:56,024 INFO ]: With dead ends: 55 [2018-06-24 21:27:56,024 INFO ]: Without dead ends: 55 [2018-06-24 21:27:56,025 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:56,025 INFO ]: Start minimizeSevpa. Operand 55 states. [2018-06-24 21:27:56,036 INFO ]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-06-24 21:27:56,036 INFO ]: Start removeUnreachable. Operand 55 states. [2018-06-24 21:27:56,038 INFO ]: Finished removeUnreachable. Reduced from 55 states to 55 states and 100 transitions. [2018-06-24 21:27:56,038 INFO ]: Start accepts. Automaton has 55 states and 100 transitions. Word has length 8 [2018-06-24 21:27:56,038 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:56,038 INFO ]: Abstraction has 55 states and 100 transitions. [2018-06-24 21:27:56,039 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:56,039 INFO ]: Start isEmpty. Operand 55 states and 100 transitions. [2018-06-24 21:27:56,041 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-24 21:27:56,041 INFO ]: Found error trace [2018-06-24 21:27:56,041 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:56,041 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:56,042 INFO ]: Analyzing trace with hash 968323444, now seen corresponding path program 1 times [2018-06-24 21:27:56,042 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:56,042 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:56,042 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:56,043 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:56,043 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:56,066 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:56,066 INFO ]: Advancing trace checker [2018-06-24 21:27:56,066 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-24 21:27:56,086 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:56,143 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:56,152 INFO ]: Computing forward predicates... [2018-06-24 21:27:56,180 INFO ]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-24 21:27:56,212 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:56,212 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:56,213 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:56,213 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:56,213 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:56,213 INFO ]: Start difference. First operand 55 states and 100 transitions. Second operand 3 states. [2018-06-24 21:27:56,605 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:56,605 INFO ]: Finished difference Result 70 states and 133 transitions. [2018-06-24 21:27:56,605 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:56,605 INFO ]: Start accepts. Automaton has 3 states. Word has length 12 [2018-06-24 21:27:56,605 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:56,607 INFO ]: With dead ends: 70 [2018-06-24 21:27:56,607 INFO ]: Without dead ends: 70 [2018-06-24 21:27:56,608 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:56,608 INFO ]: Start minimizeSevpa. Operand 70 states. [2018-06-24 21:27:56,617 INFO ]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-06-24 21:27:56,617 INFO ]: Start removeUnreachable. Operand 70 states. [2018-06-24 21:27:56,620 INFO ]: Finished removeUnreachable. Reduced from 70 states to 70 states and 133 transitions. [2018-06-24 21:27:56,620 INFO ]: Start accepts. Automaton has 70 states and 133 transitions. Word has length 12 [2018-06-24 21:27:56,620 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:56,620 INFO ]: Abstraction has 70 states and 133 transitions. [2018-06-24 21:27:56,620 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:56,620 INFO ]: Start isEmpty. Operand 70 states and 133 transitions. [2018-06-24 21:27:56,623 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-24 21:27:56,623 INFO ]: Found error trace [2018-06-24 21:27:56,623 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:56,623 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:56,623 INFO ]: Analyzing trace with hash 1433764738, now seen corresponding path program 1 times [2018-06-24 21:27:56,623 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:56,623 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:56,624 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:56,624 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:56,624 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:56,643 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:56,643 INFO ]: Advancing trace checker [2018-06-24 21:27:56,643 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-24 21:27:56,657 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:56,739 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:56,741 INFO ]: Computing forward predicates... [2018-06-24 21:27:56,792 INFO ]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-24 21:27:56,816 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:56,816 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:56,816 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:56,816 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:56,816 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:56,816 INFO ]: Start difference. First operand 70 states and 133 transitions. Second operand 3 states. [2018-06-24 21:27:57,000 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:57,000 INFO ]: Finished difference Result 85 states and 170 transitions. [2018-06-24 21:27:57,001 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:57,001 INFO ]: Start accepts. Automaton has 3 states. Word has length 12 [2018-06-24 21:27:57,001 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:57,003 INFO ]: With dead ends: 85 [2018-06-24 21:27:57,003 INFO ]: Without dead ends: 85 [2018-06-24 21:27:57,003 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:57,003 INFO ]: Start minimizeSevpa. Operand 85 states. [2018-06-24 21:27:57,012 INFO ]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-06-24 21:27:57,012 INFO ]: Start removeUnreachable. Operand 85 states. [2018-06-24 21:27:57,015 INFO ]: Finished removeUnreachable. Reduced from 85 states to 85 states and 170 transitions. [2018-06-24 21:27:57,015 INFO ]: Start accepts. Automaton has 85 states and 170 transitions. Word has length 12 [2018-06-24 21:27:57,015 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:57,015 INFO ]: Abstraction has 85 states and 170 transitions. [2018-06-24 21:27:57,015 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:57,015 INFO ]: Start isEmpty. Operand 85 states and 170 transitions. [2018-06-24 21:27:57,019 INFO ]: Finished isEmpty. Found accepting run of length 17 [2018-06-24 21:27:57,019 INFO ]: Found error trace [2018-06-24 21:27:57,019 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:57,019 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:57,019 INFO ]: Analyzing trace with hash -1841085852, now seen corresponding path program 1 times [2018-06-24 21:27:57,019 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:57,019 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:57,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:57,020 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:57,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:57,032 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:57,032 INFO ]: Advancing trace checker [2018-06-24 21:27:57,032 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-24 21:27:57,054 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:57,125 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:57,128 INFO ]: Computing forward predicates... [2018-06-24 21:27:57,156 INFO ]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-24 21:27:57,181 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:57,181 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-24 21:27:57,181 INFO ]: Interpolant automaton has 6 states [2018-06-24 21:27:57,181 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 21:27:57,181 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-24 21:27:57,181 INFO ]: Start difference. First operand 85 states and 170 transitions. Second operand 6 states. [2018-06-24 21:27:58,322 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:58,322 INFO ]: Finished difference Result 162 states and 489 transitions. [2018-06-24 21:27:58,322 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-24 21:27:58,322 INFO ]: Start accepts. Automaton has 6 states. Word has length 16 [2018-06-24 21:27:58,322 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:58,335 INFO ]: With dead ends: 162 [2018-06-24 21:27:58,335 INFO ]: Without dead ends: 159 [2018-06-24 21:27:58,335 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-06-24 21:27:58,336 INFO ]: Start minimizeSevpa. Operand 159 states. [2018-06-24 21:27:58,376 INFO ]: Finished minimizeSevpa. Reduced states from 159 to 134. [2018-06-24 21:27:58,377 INFO ]: Start removeUnreachable. Operand 134 states. [2018-06-24 21:27:58,381 INFO ]: Finished removeUnreachable. Reduced from 134 states to 134 states and 290 transitions. [2018-06-24 21:27:58,381 INFO ]: Start accepts. Automaton has 134 states and 290 transitions. Word has length 16 [2018-06-24 21:27:58,382 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:58,382 INFO ]: Abstraction has 134 states and 290 transitions. [2018-06-24 21:27:58,382 INFO ]: Interpolant automaton has 6 states. [2018-06-24 21:27:58,382 INFO ]: Start isEmpty. Operand 134 states and 290 transitions. [2018-06-24 21:27:58,388 INFO ]: Finished isEmpty. Found accepting run of length 25 [2018-06-24 21:27:58,388 INFO ]: Found error trace [2018-06-24 21:27:58,388 INFO ]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:58,388 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:58,388 INFO ]: Analyzing trace with hash -1601863430, now seen corresponding path program 1 times [2018-06-24 21:27:58,389 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:58,389 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:58,389 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:58,389 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:58,389 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:58,403 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:58,403 INFO ]: Advancing trace checker [2018-06-24 21:27:58,403 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:27:58,422 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:27:58,542 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:58,547 INFO ]: Computing forward predicates... [2018-06-24 21:27:58,603 INFO ]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-06-24 21:27:58,637 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:58,637 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:58,637 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:58,637 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:58,638 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:58,638 INFO ]: Start difference. First operand 134 states and 290 transitions. Second operand 3 states. [2018-06-24 21:27:59,314 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:59,314 INFO ]: Finished difference Result 141 states and 257 transitions. [2018-06-24 21:27:59,315 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:59,315 INFO ]: Start accepts. Automaton has 3 states. Word has length 24 [2018-06-24 21:27:59,315 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:59,318 INFO ]: With dead ends: 141 [2018-06-24 21:27:59,318 INFO ]: Without dead ends: 137 [2018-06-24 21:27:59,318 INFO ]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:59,318 INFO ]: Start minimizeSevpa. Operand 137 states. [2018-06-24 21:27:59,334 INFO ]: Finished minimizeSevpa. Reduced states from 137 to 135. [2018-06-24 21:27:59,334 INFO ]: Start removeUnreachable. Operand 135 states. [2018-06-24 21:27:59,337 INFO ]: Finished removeUnreachable. Reduced from 135 states to 135 states and 239 transitions. [2018-06-24 21:27:59,337 INFO ]: Start accepts. Automaton has 135 states and 239 transitions. Word has length 24 [2018-06-24 21:27:59,337 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:59,337 INFO ]: Abstraction has 135 states and 239 transitions. [2018-06-24 21:27:59,337 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:59,337 INFO ]: Start isEmpty. Operand 135 states and 239 transitions. [2018-06-24 21:27:59,341 INFO ]: Finished isEmpty. Found accepting run of length 37 [2018-06-24 21:27:59,342 INFO ]: Found error trace [2018-06-24 21:27:59,342 INFO ]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:59,342 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:59,342 INFO ]: Analyzing trace with hash -448317335, now seen corresponding path program 1 times [2018-06-24 21:27:59,342 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:59,342 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:59,343 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:59,343 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:59,343 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:59,372 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:59,372 INFO ]: Advancing trace checker [2018-06-24 21:27:59,372 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:27:59,390 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:27:59,561 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:59,572 INFO ]: Computing forward predicates... [2018-06-24 21:27:59,635 INFO ]: Checked inductivity of 78 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-06-24 21:27:59,668 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:59,668 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:59,668 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:59,668 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:59,668 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:59,669 INFO ]: Start difference. First operand 135 states and 239 transitions. Second operand 3 states. [2018-06-24 21:28:00,254 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:00,254 INFO ]: Finished difference Result 122 states and 214 transitions. [2018-06-24 21:28:00,255 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:00,255 INFO ]: Start accepts. Automaton has 3 states. Word has length 36 [2018-06-24 21:28:00,255 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:00,257 INFO ]: With dead ends: 122 [2018-06-24 21:28:00,257 INFO ]: Without dead ends: 122 [2018-06-24 21:28:00,257 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:00,257 INFO ]: Start minimizeSevpa. Operand 122 states. [2018-06-24 21:28:00,267 INFO ]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-06-24 21:28:00,267 INFO ]: Start removeUnreachable. Operand 122 states. [2018-06-24 21:28:00,269 INFO ]: Finished removeUnreachable. Reduced from 122 states to 122 states and 214 transitions. [2018-06-24 21:28:00,269 INFO ]: Start accepts. Automaton has 122 states and 214 transitions. Word has length 36 [2018-06-24 21:28:00,270 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:00,270 INFO ]: Abstraction has 122 states and 214 transitions. [2018-06-24 21:28:00,270 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:00,270 INFO ]: Start isEmpty. Operand 122 states and 214 transitions. [2018-06-24 21:28:00,274 INFO ]: Finished isEmpty. Found accepting run of length 49 [2018-06-24 21:28:00,274 INFO ]: Found error trace [2018-06-24 21:28:00,274 INFO ]: trace histogram [6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:28:00,274 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:00,274 INFO ]: Analyzing trace with hash 1469006954, now seen corresponding path program 1 times [2018-06-24 21:28:00,274 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:00,274 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:00,275 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:00,275 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:00,275 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:00,291 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:00,291 INFO ]: Advancing trace checker [2018-06-24 21:28:00,291 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-24 21:28:00,307 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:00,575 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:00,583 INFO ]: Computing forward predicates... [2018-06-24 21:28:00,641 INFO ]: Checked inductivity of 146 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-06-24 21:28:00,671 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:28:00,671 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:28:00,672 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:28:00,672 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:28:00,672 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:00,672 INFO ]: Start difference. First operand 122 states and 214 transitions. Second operand 3 states. [2018-06-24 21:28:00,774 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:00,774 INFO ]: Finished difference Result 130 states and 232 transitions. [2018-06-24 21:28:00,774 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:00,774 INFO ]: Start accepts. Automaton has 3 states. Word has length 48 [2018-06-24 21:28:00,775 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:00,777 INFO ]: With dead ends: 130 [2018-06-24 21:28:00,777 INFO ]: Without dead ends: 130 [2018-06-24 21:28:00,777 INFO ]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:00,777 INFO ]: Start minimizeSevpa. Operand 130 states. [2018-06-24 21:28:00,787 INFO ]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-06-24 21:28:00,787 INFO ]: Start removeUnreachable. Operand 130 states. [2018-06-24 21:28:00,789 INFO ]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2018-06-24 21:28:00,789 INFO ]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 48 [2018-06-24 21:28:00,789 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:00,789 INFO ]: Abstraction has 130 states and 232 transitions. [2018-06-24 21:28:00,789 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:00,789 INFO ]: Start isEmpty. Operand 130 states and 232 transitions. [2018-06-24 21:28:00,793 INFO ]: Finished isEmpty. Found accepting run of length 60 [2018-06-24 21:28:00,793 INFO ]: Found error trace [2018-06-24 21:28:00,794 INFO ]: trace histogram [7, 4, 4, 3, 3, 3, 3, 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] [2018-06-24 21:28:00,794 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:00,794 INFO ]: Analyzing trace with hash -1530018322, now seen corresponding path program 1 times [2018-06-24 21:28:00,794 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:00,794 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:00,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:00,795 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:00,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:00,809 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:00,809 INFO ]: Advancing trace checker [2018-06-24 21:28:00,809 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-24 21:28:00,820 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:01,091 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:01,098 INFO ]: Computing forward predicates... [2018-06-24 21:28:01,111 INFO ]: Checked inductivity of 230 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-06-24 21:28:01,142 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:28:01,142 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:28:01,142 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:28:01,142 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:28:01,142 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:01,143 INFO ]: Start difference. First operand 130 states and 232 transitions. Second operand 3 states. [2018-06-24 21:28:01,240 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:01,240 INFO ]: Finished difference Result 134 states and 244 transitions. [2018-06-24 21:28:01,240 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:01,240 INFO ]: Start accepts. Automaton has 3 states. Word has length 59 [2018-06-24 21:28:01,241 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:01,242 INFO ]: With dead ends: 134 [2018-06-24 21:28:01,242 INFO ]: Without dead ends: 134 [2018-06-24 21:28:01,243 INFO ]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:01,243 INFO ]: Start minimizeSevpa. Operand 134 states. [2018-06-24 21:28:01,263 INFO ]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-06-24 21:28:01,263 INFO ]: Start removeUnreachable. Operand 134 states. [2018-06-24 21:28:01,265 INFO ]: Finished removeUnreachable. Reduced from 134 states to 134 states and 244 transitions. [2018-06-24 21:28:01,265 INFO ]: Start accepts. Automaton has 134 states and 244 transitions. Word has length 59 [2018-06-24 21:28:01,266 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:01,266 INFO ]: Abstraction has 134 states and 244 transitions. [2018-06-24 21:28:01,266 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:01,266 INFO ]: Start isEmpty. Operand 134 states and 244 transitions. [2018-06-24 21:28:01,271 INFO ]: Finished isEmpty. Found accepting run of length 68 [2018-06-24 21:28:01,271 INFO ]: Found error trace [2018-06-24 21:28:01,271 INFO ]: trace histogram [8, 5, 5, 4, 3, 3, 3, 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] [2018-06-24 21:28:01,271 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:01,271 INFO ]: Analyzing trace with hash -746600493, now seen corresponding path program 1 times [2018-06-24 21:28:01,271 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:01,271 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:01,272 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:01,272 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:01,272 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:01,289 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:01,289 INFO ]: Advancing trace checker [2018-06-24 21:28:01,289 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:28:01,303 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:01,610 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:01,619 INFO ]: Computing forward predicates... [2018-06-24 21:28:01,646 INFO ]: Checked inductivity of 300 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-06-24 21:28:01,666 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:28:01,667 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:28:01,667 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:28:01,667 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:28:01,667 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:01,667 INFO ]: Start difference. First operand 134 states and 244 transitions. Second operand 3 states. [2018-06-24 21:28:01,771 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:01,771 INFO ]: Finished difference Result 139 states and 244 transitions. [2018-06-24 21:28:01,771 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:01,772 INFO ]: Start accepts. Automaton has 3 states. Word has length 67 [2018-06-24 21:28:01,772 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:01,774 INFO ]: With dead ends: 139 [2018-06-24 21:28:01,774 INFO ]: Without dead ends: 132 [2018-06-24 21:28:01,774 INFO ]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:01,774 INFO ]: Start minimizeSevpa. Operand 132 states. [2018-06-24 21:28:01,782 INFO ]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-06-24 21:28:01,782 INFO ]: Start removeUnreachable. Operand 132 states. [2018-06-24 21:28:01,784 INFO ]: Finished removeUnreachable. Reduced from 132 states to 132 states and 232 transitions. [2018-06-24 21:28:01,784 INFO ]: Start accepts. Automaton has 132 states and 232 transitions. Word has length 67 [2018-06-24 21:28:01,784 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:01,784 INFO ]: Abstraction has 132 states and 232 transitions. [2018-06-24 21:28:01,784 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:01,784 INFO ]: Start isEmpty. Operand 132 states and 232 transitions. [2018-06-24 21:28:01,787 INFO ]: Finished isEmpty. Found accepting run of length 71 [2018-06-24 21:28:01,788 INFO ]: Found error trace [2018-06-24 21:28:01,788 INFO ]: trace histogram [9, 5, 5, 4, 3, 3, 3, 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] [2018-06-24 21:28:01,788 INFO ]: === Iteration 12 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:01,788 INFO ]: Analyzing trace with hash -982114610, now seen corresponding path program 1 times [2018-06-24 21:28:01,788 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:01,788 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:01,788 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:01,788 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:01,789 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:01,802 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:01,802 INFO ]: Advancing trace checker [2018-06-24 21:28:01,802 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:28:01,823 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:02,105 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:02,113 INFO ]: Computing forward predicates... [2018-06-24 21:28:02,128 INFO ]: Checked inductivity of 334 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-06-24 21:28:02,162 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:28:02,163 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:28:02,163 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:28:02,163 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:28:02,163 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:02,163 INFO ]: Start difference. First operand 132 states and 232 transitions. Second operand 3 states. [2018-06-24 21:28:02,290 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:02,290 INFO ]: Finished difference Result 147 states and 258 transitions. [2018-06-24 21:28:02,290 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:02,290 INFO ]: Start accepts. Automaton has 3 states. Word has length 70 [2018-06-24 21:28:02,291 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:02,293 INFO ]: With dead ends: 147 [2018-06-24 21:28:02,293 INFO ]: Without dead ends: 147 [2018-06-24 21:28:02,293 INFO ]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:02,293 INFO ]: Start minimizeSevpa. Operand 147 states. [2018-06-24 21:28:02,301 INFO ]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-06-24 21:28:02,301 INFO ]: Start removeUnreachable. Operand 147 states. [2018-06-24 21:28:02,303 INFO ]: Finished removeUnreachable. Reduced from 147 states to 147 states and 258 transitions. [2018-06-24 21:28:02,303 INFO ]: Start accepts. Automaton has 147 states and 258 transitions. Word has length 70 [2018-06-24 21:28:02,304 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:02,304 INFO ]: Abstraction has 147 states and 258 transitions. [2018-06-24 21:28:02,304 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:02,304 INFO ]: Start isEmpty. Operand 147 states and 258 transitions. [2018-06-24 21:28:02,307 INFO ]: Finished isEmpty. Found accepting run of length 83 [2018-06-24 21:28:02,307 INFO ]: Found error trace [2018-06-24 21:28:02,307 INFO ]: trace histogram [11, 6, 6, 5, 4, 4, 4, 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] [2018-06-24 21:28:02,307 INFO ]: === Iteration 13 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:02,308 INFO ]: Analyzing trace with hash 697218375, now seen corresponding path program 1 times [2018-06-24 21:28:02,308 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:02,308 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:02,308 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:02,308 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:02,308 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:02,323 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:02,323 INFO ]: Advancing trace checker [2018-06-24 21:28:02,323 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:28:02,338 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:02,713 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:02,725 INFO ]: Computing forward predicates... [2018-06-24 21:28:02,982 INFO ]: Checked inductivity of 464 backedges. 64 proven. 36 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2018-06-24 21:28:03,004 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-24 21:28:03,004 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-06-24 21:28:03,004 INFO ]: Interpolant automaton has 10 states [2018-06-24 21:28:03,004 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-24 21:28:03,004 INFO ]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-06-24 21:28:03,005 INFO ]: Start difference. First operand 147 states and 258 transitions. Second operand 10 states. [2018-06-24 21:28:03,880 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:03,880 INFO ]: Finished difference Result 201 states and 492 transitions. [2018-06-24 21:28:03,881 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-24 21:28:03,881 INFO ]: Start accepts. Automaton has 10 states. Word has length 82 [2018-06-24 21:28:03,881 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:03,886 INFO ]: With dead ends: 201 [2018-06-24 21:28:03,886 INFO ]: Without dead ends: 200 [2018-06-24 21:28:03,886 INFO ]: 0 DeclaredPredicates, 91 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-06-24 21:28:03,886 INFO ]: Start minimizeSevpa. Operand 200 states. [2018-06-24 21:28:03,908 INFO ]: Finished minimizeSevpa. Reduced states from 200 to 154. [2018-06-24 21:28:03,908 INFO ]: Start removeUnreachable. Operand 154 states. [2018-06-24 21:28:03,911 INFO ]: Finished removeUnreachable. Reduced from 154 states to 154 states and 285 transitions. [2018-06-24 21:28:03,911 INFO ]: Start accepts. Automaton has 154 states and 285 transitions. Word has length 82 [2018-06-24 21:28:03,911 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:03,911 INFO ]: Abstraction has 154 states and 285 transitions. [2018-06-24 21:28:03,911 INFO ]: Interpolant automaton has 10 states. [2018-06-24 21:28:03,911 INFO ]: Start isEmpty. Operand 154 states and 285 transitions. [2018-06-24 21:28:03,915 INFO ]: Finished isEmpty. Found accepting run of length 86 [2018-06-24 21:28:03,915 INFO ]: Found error trace [2018-06-24 21:28:03,916 INFO ]: trace histogram [11, 6, 6, 6, 4, 4, 3, 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] [2018-06-24 21:28:03,917 INFO ]: === Iteration 14 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:03,917 INFO ]: Analyzing trace with hash 465029005, now seen corresponding path program 1 times [2018-06-24 21:28:03,917 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:03,917 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:03,917 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:03,917 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:03,917 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:03,937 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:03,937 INFO ]: Advancing trace checker [2018-06-24 21:28:03,937 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-24 21:28:03,951 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:04,376 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:04,387 INFO ]: Computing forward predicates... [2018-06-24 21:28:04,455 INFO ]: Checked inductivity of 506 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2018-06-24 21:28:04,490 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:28:04,490 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:28:04,490 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:28:04,490 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:28:04,490 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:04,490 INFO ]: Start difference. First operand 154 states and 285 transitions. Second operand 3 states. [2018-06-24 21:28:04,671 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:04,672 INFO ]: Finished difference Result 167 states and 305 transitions. [2018-06-24 21:28:04,672 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:04,672 INFO ]: Start accepts. Automaton has 3 states. Word has length 85 [2018-06-24 21:28:04,672 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:04,674 INFO ]: With dead ends: 167 [2018-06-24 21:28:04,674 INFO ]: Without dead ends: 167 [2018-06-24 21:28:04,675 INFO ]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:04,675 INFO ]: Start minimizeSevpa. Operand 167 states. [2018-06-24 21:28:04,684 INFO ]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-06-24 21:28:04,684 INFO ]: Start removeUnreachable. Operand 167 states. [2018-06-24 21:28:04,687 INFO ]: Finished removeUnreachable. Reduced from 167 states to 167 states and 305 transitions. [2018-06-24 21:28:04,687 INFO ]: Start accepts. Automaton has 167 states and 305 transitions. Word has length 85 [2018-06-24 21:28:04,687 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:04,687 INFO ]: Abstraction has 167 states and 305 transitions. [2018-06-24 21:28:04,687 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:04,687 INFO ]: Start isEmpty. Operand 167 states and 305 transitions. [2018-06-24 21:28:04,691 INFO ]: Finished isEmpty. Found accepting run of length 94 [2018-06-24 21:28:04,691 INFO ]: Found error trace [2018-06-24 21:28:04,692 INFO ]: trace histogram [12, 6, 6, 6, 5, 5, 4, 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] [2018-06-24 21:28:04,692 INFO ]: === Iteration 15 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:04,692 INFO ]: Analyzing trace with hash 1692426160, now seen corresponding path program 1 times [2018-06-24 21:28:04,692 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:04,692 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:04,692 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:04,692 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:04,692 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:04,709 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:04,709 INFO ]: Advancing trace checker [2018-06-24 21:28:04,709 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:04,729 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:05,100 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:05,110 INFO ]: Computing forward predicates... [2018-06-24 21:28:05,128 INFO ]: Checked inductivity of 606 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-06-24 21:28:05,154 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:28:05,154 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:28:05,155 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:28:05,155 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:28:05,155 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:05,155 INFO ]: Start difference. First operand 167 states and 305 transitions. Second operand 3 states. [2018-06-24 21:28:05,243 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:05,243 INFO ]: Finished difference Result 173 states and 315 transitions. [2018-06-24 21:28:05,243 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:05,243 INFO ]: Start accepts. Automaton has 3 states. Word has length 93 [2018-06-24 21:28:05,243 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:05,245 INFO ]: With dead ends: 173 [2018-06-24 21:28:05,245 INFO ]: Without dead ends: 173 [2018-06-24 21:28:05,245 INFO ]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:05,246 INFO ]: Start minimizeSevpa. Operand 173 states. [2018-06-24 21:28:05,255 INFO ]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-06-24 21:28:05,255 INFO ]: Start removeUnreachable. Operand 173 states. [2018-06-24 21:28:05,258 INFO ]: Finished removeUnreachable. Reduced from 173 states to 173 states and 315 transitions. [2018-06-24 21:28:05,259 INFO ]: Start accepts. Automaton has 173 states and 315 transitions. Word has length 93 [2018-06-24 21:28:05,259 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:05,259 INFO ]: Abstraction has 173 states and 315 transitions. [2018-06-24 21:28:05,259 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:05,259 INFO ]: Start isEmpty. Operand 173 states and 315 transitions. [2018-06-24 21:28:05,263 INFO ]: Finished isEmpty. Found accepting run of length 90 [2018-06-24 21:28:05,263 INFO ]: Found error trace [2018-06-24 21:28:05,263 INFO ]: trace histogram [12, 6, 6, 6, 5, 5, 4, 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] [2018-06-24 21:28:05,263 INFO ]: === Iteration 16 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:05,264 INFO ]: Analyzing trace with hash -2128759959, now seen corresponding path program 1 times [2018-06-24 21:28:05,264 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:05,264 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:05,264 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:05,264 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:05,264 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:05,283 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:05,283 INFO ]: Advancing trace checker [2018-06-24 21:28:05,283 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:28:05,297 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:05,791 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:05,806 INFO ]: Computing forward predicates... [2018-06-24 21:28:06,005 INFO ]: Checked inductivity of 558 backedges. 79 proven. 7 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-06-24 21:28:06,029 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-24 21:28:06,030 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-06-24 21:28:06,030 INFO ]: Interpolant automaton has 8 states [2018-06-24 21:28:06,030 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-24 21:28:06,030 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-24 21:28:06,030 INFO ]: Start difference. First operand 173 states and 315 transitions. Second operand 8 states. [2018-06-24 21:28:06,651 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:06,651 INFO ]: Finished difference Result 201 states and 436 transitions. [2018-06-24 21:28:06,651 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-24 21:28:06,651 INFO ]: Start accepts. Automaton has 8 states. Word has length 89 [2018-06-24 21:28:06,651 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:06,654 INFO ]: With dead ends: 201 [2018-06-24 21:28:06,654 INFO ]: Without dead ends: 201 [2018-06-24 21:28:06,655 INFO ]: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-06-24 21:28:06,655 INFO ]: Start minimizeSevpa. Operand 201 states. [2018-06-24 21:28:06,671 INFO ]: Finished minimizeSevpa. Reduced states from 201 to 176. [2018-06-24 21:28:06,671 INFO ]: Start removeUnreachable. Operand 176 states. [2018-06-24 21:28:06,673 INFO ]: Finished removeUnreachable. Reduced from 176 states to 176 states and 325 transitions. [2018-06-24 21:28:06,673 INFO ]: Start accepts. Automaton has 176 states and 325 transitions. Word has length 89 [2018-06-24 21:28:06,674 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:06,674 INFO ]: Abstraction has 176 states and 325 transitions. [2018-06-24 21:28:06,674 INFO ]: Interpolant automaton has 8 states. [2018-06-24 21:28:06,674 INFO ]: Start isEmpty. Operand 176 states and 325 transitions. [2018-06-24 21:28:06,679 INFO ]: Finished isEmpty. Found accepting run of length 156 [2018-06-24 21:28:06,679 INFO ]: Found error trace [2018-06-24 21:28:06,679 INFO ]: trace histogram [21, 11, 11, 10, 8, 8, 7, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:28:06,679 INFO ]: === Iteration 17 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:06,679 INFO ]: Analyzing trace with hash 240156812, now seen corresponding path program 1 times [2018-06-24 21:28:06,679 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:06,679 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:06,680 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:06,680 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:06,680 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:06,707 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:06,707 INFO ]: Advancing trace checker [2018-06-24 21:28:06,707 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:28:06,724 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:07,401 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:07,426 INFO ]: Computing forward predicates... [2018-06-24 21:28:08,078 INFO ]: Checked inductivity of 1742 backedges. 204 proven. 195 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2018-06-24 21:28:08,101 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-24 21:28:08,101 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-06-24 21:28:08,102 INFO ]: Interpolant automaton has 16 states [2018-06-24 21:28:08,102 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-24 21:28:08,102 INFO ]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2018-06-24 21:28:08,102 INFO ]: Start difference. First operand 176 states and 325 transitions. Second operand 16 states. [2018-06-24 21:28:15,724 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:15,724 INFO ]: Finished difference Result 540 states and 1417 transitions. [2018-06-24 21:28:15,724 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-06-24 21:28:15,724 INFO ]: Start accepts. Automaton has 16 states. Word has length 155 [2018-06-24 21:28:15,725 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:15,736 INFO ]: With dead ends: 540 [2018-06-24 21:28:15,736 INFO ]: Without dead ends: 341 [2018-06-24 21:28:15,738 INFO ]: 0 DeclaredPredicates, 251 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2958 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=944, Invalid=8176, Unknown=0, NotChecked=0, Total=9120 [2018-06-24 21:28:15,739 INFO ]: Start minimizeSevpa. Operand 341 states. [2018-06-24 21:28:15,776 INFO ]: Finished minimizeSevpa. Reduced states from 341 to 283. [2018-06-24 21:28:15,776 INFO ]: Start removeUnreachable. Operand 283 states. [2018-06-24 21:28:15,781 INFO ]: Finished removeUnreachable. Reduced from 283 states to 283 states and 587 transitions. [2018-06-24 21:28:15,781 INFO ]: Start accepts. Automaton has 283 states and 587 transitions. Word has length 155 [2018-06-24 21:28:15,781 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:15,781 INFO ]: Abstraction has 283 states and 587 transitions. [2018-06-24 21:28:15,781 INFO ]: Interpolant automaton has 16 states. [2018-06-24 21:28:15,781 INFO ]: Start isEmpty. Operand 283 states and 587 transitions. [2018-06-24 21:28:15,793 INFO ]: Finished isEmpty. Found accepting run of length 391 [2018-06-24 21:28:15,793 INFO ]: Found error trace [2018-06-24 21:28:15,793 INFO ]: trace histogram [53, 29, 29, 26, 19, 19, 18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-06-24 21:28:15,793 INFO ]: === Iteration 18 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:15,793 INFO ]: Analyzing trace with hash 226958502, now seen corresponding path program 1 times [2018-06-24 21:28:15,793 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:15,793 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:15,794 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:15,794 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:15,794 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:15,851 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:15,851 INFO ]: Advancing trace checker [2018-06-24 21:28:15,851 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:15,865 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:17,489 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:17,533 INFO ]: Computing forward predicates... [2018-06-24 21:28:17,676 INFO ]: Checked inductivity of 11413 backedges. 5510 proven. 0 refuted. 0 times theorem prover too weak. 5903 trivial. 0 not checked. [2018-06-24 21:28:17,706 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:28:17,706 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:28:17,706 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:28:17,706 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:28:17,706 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:17,706 INFO ]: Start difference. First operand 283 states and 587 transitions. Second operand 3 states. [2018-06-24 21:28:17,763 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:17,763 INFO ]: Finished difference Result 288 states and 592 transitions. [2018-06-24 21:28:17,764 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:28:17,764 INFO ]: Start accepts. Automaton has 3 states. Word has length 390 [2018-06-24 21:28:17,764 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:17,769 INFO ]: With dead ends: 288 [2018-06-24 21:28:17,769 INFO ]: Without dead ends: 279 [2018-06-24 21:28:17,769 INFO ]: 0 DeclaredPredicates, 389 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:28:17,770 INFO ]: Start minimizeSevpa. Operand 279 states. [2018-06-24 21:28:17,787 INFO ]: Finished minimizeSevpa. Reduced states from 279 to 279. [2018-06-24 21:28:17,787 INFO ]: Start removeUnreachable. Operand 279 states. [2018-06-24 21:28:17,795 INFO ]: Finished removeUnreachable. Reduced from 279 states to 279 states and 572 transitions. [2018-06-24 21:28:17,796 INFO ]: Start accepts. Automaton has 279 states and 572 transitions. Word has length 390 [2018-06-24 21:28:17,796 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:17,796 INFO ]: Abstraction has 279 states and 572 transitions. [2018-06-24 21:28:17,796 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:28:17,796 INFO ]: Start isEmpty. Operand 279 states and 572 transitions. [2018-06-24 21:28:17,812 INFO ]: Finished isEmpty. Found accepting run of length 406 [2018-06-24 21:28:17,812 INFO ]: Found error trace [2018-06-24 21:28:17,812 INFO ]: trace histogram [55, 30, 30, 27, 20, 20, 19, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-06-24 21:28:17,812 INFO ]: === Iteration 19 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:17,812 INFO ]: Analyzing trace with hash 448810463, now seen corresponding path program 1 times [2018-06-24 21:28:17,812 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:17,812 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:17,813 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:17,813 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:17,813 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:17,869 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:17,869 INFO ]: Advancing trace checker [2018-06-24 21:28:17,869 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:17,885 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:19,723 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:19,774 INFO ]: Computing forward predicates... [2018-06-24 21:28:20,192 INFO ]: Checked inductivity of 12329 backedges. 720 proven. 472 refuted. 0 times theorem prover too weak. 11137 trivial. 0 not checked. [2018-06-24 21:28:20,221 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-24 21:28:20,221 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-06-24 21:28:20,222 INFO ]: Interpolant automaton has 17 states [2018-06-24 21:28:20,222 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-24 21:28:20,224 INFO ]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2018-06-24 21:28:20,224 INFO ]: Start difference. First operand 279 states and 572 transitions. Second operand 17 states. [2018-06-24 21:28:27,415 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:27,416 INFO ]: Finished difference Result 829 states and 2558 transitions. [2018-06-24 21:28:27,416 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-06-24 21:28:27,416 INFO ]: Start accepts. Automaton has 17 states. Word has length 405 [2018-06-24 21:28:27,416 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:27,431 INFO ]: With dead ends: 829 [2018-06-24 21:28:27,431 INFO ]: Without dead ends: 575 [2018-06-24 21:28:27,433 INFO ]: 0 DeclaredPredicates, 505 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2679 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=906, Invalid=7466, Unknown=0, NotChecked=0, Total=8372 [2018-06-24 21:28:27,434 INFO ]: Start minimizeSevpa. Operand 575 states. [2018-06-24 21:28:27,494 INFO ]: Finished minimizeSevpa. Reduced states from 575 to 481. [2018-06-24 21:28:27,494 INFO ]: Start removeUnreachable. Operand 481 states. [2018-06-24 21:28:27,501 INFO ]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1210 transitions. [2018-06-24 21:28:27,501 INFO ]: Start accepts. Automaton has 481 states and 1210 transitions. Word has length 405 [2018-06-24 21:28:27,503 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:27,503 INFO ]: Abstraction has 481 states and 1210 transitions. [2018-06-24 21:28:27,503 INFO ]: Interpolant automaton has 17 states. [2018-06-24 21:28:27,503 INFO ]: Start isEmpty. Operand 481 states and 1210 transitions. [2018-06-24 21:28:27,525 INFO ]: Finished isEmpty. Found accepting run of length 472 [2018-06-24 21:28:27,525 INFO ]: Found error trace [2018-06-24 21:28:27,525 INFO ]: trace histogram [64, 35, 35, 31, 23, 23, 22, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-06-24 21:28:27,525 INFO ]: === Iteration 20 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:28:27,525 INFO ]: Analyzing trace with hash 1486246812, now seen corresponding path program 2 times [2018-06-24 21:28:27,526 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:28:27,526 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:28:27,526 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:27,526 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:28:27,526 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:28:27,589 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:28:27,589 INFO ]: Advancing trace checker [2018-06-24 21:28:27,589 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-24 21:28:27,604 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:28:29,810 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-24 21:28:29,810 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:28:29,863 INFO ]: Computing forward predicates... [2018-06-24 21:28:30,593 INFO ]: Checked inductivity of 16694 backedges. 905 proven. 777 refuted. 0 times theorem prover too weak. 15012 trivial. 0 not checked. [2018-06-24 21:28:30,629 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-24 21:28:30,629 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-06-24 21:28:30,630 INFO ]: Interpolant automaton has 18 states [2018-06-24 21:28:30,630 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-24 21:28:30,630 INFO ]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2018-06-24 21:28:30,630 INFO ]: Start difference. First operand 481 states and 1210 transitions. Second operand 18 states. [2018-06-24 21:28:35,415 WARN ]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-24 21:28:36,372 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:28:36,372 INFO ]: Finished difference Result 1153 states and 3135 transitions. [2018-06-24 21:28:36,375 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-06-24 21:28:36,375 INFO ]: Start accepts. Automaton has 18 states. Word has length 471 [2018-06-24 21:28:36,376 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:28:36,376 INFO ]: With dead ends: 1153 [2018-06-24 21:28:36,377 INFO ]: Without dead ends: 0 [2018-06-24 21:28:36,379 INFO ]: 0 DeclaredPredicates, 561 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2903 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1010, Invalid=8302, Unknown=0, NotChecked=0, Total=9312 [2018-06-24 21:28:36,379 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:28:36,379 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:28:36,379 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:28:36,379 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:28:36,379 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 471 [2018-06-24 21:28:36,379 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:28:36,379 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:28:36,379 INFO ]: Interpolant automaton has 18 states. [2018-06-24 21:28:36,379 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:28:36,379 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:28:36,381 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:28:36,382 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:28:36 BasicIcfg [2018-06-24 21:28:36,382 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:28:36,383 INFO ]: Toolchain (without parser) took 45398.49 ms. Allocated memory was 300.9 MB in the beginning and 1.2 GB in the end (delta: 894.4 MB). Free memory was 211.5 MB in the beginning and 567.0 MB in the end (delta: -355.5 MB). Peak memory consumption was 538.9 MB. Max. memory is 3.6 GB. [2018-06-24 21:28:36,384 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 300.9 MB. Free memory is still 266.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:28:36,384 INFO ]: ChcToBoogie took 89.00 ms. Allocated memory is still 300.9 MB. Free memory was 211.5 MB in the beginning and 207.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:28:36,385 INFO ]: Boogie Preprocessor took 82.83 ms. Allocated memory is still 300.9 MB. Free memory was 207.5 MB in the beginning and 205.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:28:36,385 INFO ]: RCFGBuilder took 1620.76 ms. Allocated memory was 300.9 MB in the beginning and 320.3 MB in the end (delta: 19.4 MB). Free memory was 205.5 MB in the beginning and 251.0 MB in the end (delta: -45.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 3.6 GB. [2018-06-24 21:28:36,386 INFO ]: BlockEncodingV2 took 842.25 ms. Allocated memory is still 320.3 MB. Free memory was 251.0 MB in the beginning and 185.5 MB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 3.6 GB. [2018-06-24 21:28:36,387 INFO ]: TraceAbstraction took 42755.33 ms. Allocated memory was 320.3 MB in the beginning and 1.2 GB in the end (delta: 875.0 MB). Free memory was 185.5 MB in the beginning and 567.0 MB in the end (delta: -381.5 MB). Peak memory consumption was 493.5 MB. Max. memory is 3.6 GB. [2018-06-24 21:28:36,389 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 89 locations, 134 edges - StatisticsResult: Encoded RCFG 45 locations, 88 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 300.9 MB. Free memory is still 266.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 89.00 ms. Allocated memory is still 300.9 MB. Free memory was 211.5 MB in the beginning and 207.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 82.83 ms. Allocated memory is still 300.9 MB. Free memory was 207.5 MB in the beginning and 205.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1620.76 ms. Allocated memory was 300.9 MB in the beginning and 320.3 MB in the end (delta: 19.4 MB). Free memory was 205.5 MB in the beginning and 251.0 MB in the end (delta: -45.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 842.25 ms. Allocated memory is still 320.3 MB. Free memory was 251.0 MB in the beginning and 185.5 MB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 3.6 GB. * TraceAbstraction took 42755.33 ms. Allocated memory was 320.3 MB in the beginning and 1.2 GB in the end (delta: 875.0 MB). Free memory was 185.5 MB in the beginning and 567.0 MB in the end (delta: -381.5 MB). Peak memory consumption was 493.5 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. SAFE Result, 42.6s OverallTime, 20 OverallIterations, 64 TraceHistogramMax, 27.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2304 SDtfs, 964 SDslu, 4792 SDs, 0 SdLazy, 23698 SolverSat, 3644 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2424 GetRequests, 2090 SyntacticMatches, 0 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8610 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=481occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 250 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 2.2s SsaConstructionTime, 7.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2134 NumberOfCodeBlocks, 2134 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2114 ConstructedInterpolants, 0 QuantifiedInterpolants, 784275 SizeOfPredicates, 147 NumberOfNonLiveVariables, 85758 ConjunctsInSsa, 427 ConjunctsInUnsatCore, 20 InterpolantComputations, 15 PerfectInterpolantSequences, 43973/45460 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/churchNum01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-28-36-399.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/churchNum01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-28-36-399.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/churchNum01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-28-36-399.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/churchNum01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-28-36-399.csv Received shutdown request...