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/mochi/max.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:25:05,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:25:05,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:25:05,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:25:05,741 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:25:05,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:25:05,742 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:25:05,746 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:25:05,747 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:25:05,748 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:25:05,749 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:25:05,749 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:25:05,750 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:25:05,751 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:25:05,753 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:25:05,754 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:25:05,754 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:25:05,764 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:25:05,766 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:25:05,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:25:05,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:25:05,769 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:25:05,774 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:25:05,774 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:25:05,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:25:05,775 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:25:05,776 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:25:05,777 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:25:05,779 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:25:05,780 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:25:05,780 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:25:05,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:25:05,781 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:25:05,781 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:25:05,782 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:25:05,785 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:25:05,786 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:25:05,810 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:25:05,810 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:25:05,811 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:25:05,811 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:25:05,812 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:25:05,812 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:25:05,812 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:25:05,812 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:25:05,813 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:25:05,813 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:25:05,813 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:25:05,813 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:25:05,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:25:05,814 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:25:05,814 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:25:05,814 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:25:05,814 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:25:05,814 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:25:05,815 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:25:05,815 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:25:05,815 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:25:05,821 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:25:05,821 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:25:05,867 INFO ]: Repository-Root is: /tmp [2018-06-26 18:25:05,880 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:25:05,884 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:25:05,885 INFO ]: Initializing SmtParser... [2018-06-26 18:25:05,885 INFO ]: SmtParser initialized [2018-06-26 18:25:05,886 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/max.smt2 [2018-06-26 18:25:05,887 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 [2018-06-26 18:25:05,983 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/max.smt2 unknown [2018-06-26 18:25:06,148 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/max.smt2 [2018-06-26 18:25:06,157 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:25:06,166 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:25:06,166 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:25:06,166 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:25:06,166 INFO ]: ChcToBoogie initialized [2018-06-26 18:25:06,172 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,227 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06 Unit [2018-06-26 18:25:06,227 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:25:06,230 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:25:06,230 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:25:06,230 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:25:06,250 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,251 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,256 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,256 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,258 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,261 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,262 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,263 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:25:06,265 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:25:06,265 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:25:06,265 INFO ]: RCFGBuilder initialized [2018-06-26 18:25:06,266 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:25:06,286 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:25:06,286 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:25:06,286 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:25:06,286 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:25:06,286 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:25:06,286 INFO ]: Found implementation of procedure Ultimate.START [2018-06-26 18:25:06,595 INFO ]: Using library mode [2018-06-26 18:25:06,595 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:25:06 BoogieIcfgContainer [2018-06-26 18:25:06,595 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:25:06,596 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:25:06,596 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:25:06,597 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:25:06,597 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:25:06" (1/1) ... [2018-06-26 18:25:06,615 INFO ]: Initial Icfg 18 locations, 23 edges [2018-06-26 18:25:06,616 INFO ]: Using Remove infeasible edges [2018-06-26 18:25:06,618 INFO ]: Using Maximize final states [2018-06-26 18:25:06,618 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:25:06,618 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:25:06,620 INFO ]: Using Remove sink states [2018-06-26 18:25:06,621 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:25:06,621 INFO ]: Using Use SBE [2018-06-26 18:25:06,632 INFO ]: SBE split 0 edges [2018-06-26 18:25:06,638 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-26 18:25:06,640 INFO ]: 0 new accepting states [2018-06-26 18:25:06,717 INFO ]: Removed 16 edges and 6 locations by large block encoding [2018-06-26 18:25:06,719 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:25:06,720 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:25:06,721 INFO ]: 0 new accepting states [2018-06-26 18:25:06,721 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:25:06,721 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:25:06,721 INFO ]: Encoded RCFG 10 locations, 14 edges [2018-06-26 18:25:06,722 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:25:06 BasicIcfg [2018-06-26 18:25:06,722 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:25:06,723 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:25:06,723 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:25:06,726 INFO ]: TraceAbstraction initialized [2018-06-26 18:25:06,726 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:25:06" (1/4) ... [2018-06-26 18:25:06,729 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a650087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:25:06, skipping insertion in model container [2018-06-26 18:25:06,730 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:25:06" (2/4) ... [2018-06-26 18:25:06,730 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a650087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:25:06, skipping insertion in model container [2018-06-26 18:25:06,730 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:25:06" (3/4) ... [2018-06-26 18:25:06,731 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a650087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:25:06, skipping insertion in model container [2018-06-26 18:25:06,731 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:25:06" (4/4) ... [2018-06-26 18:25:06,733 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:25:06,742 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:25:06,750 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:25:06,790 INFO ]: Using default assertion order modulation [2018-06-26 18:25:06,791 INFO ]: Interprodecural is true [2018-06-26 18:25:06,791 INFO ]: Hoare is false [2018-06-26 18:25:06,791 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:25:06,791 INFO ]: Backedges is TWOTRACK [2018-06-26 18:25:06,791 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:25:06,791 INFO ]: Difference is false [2018-06-26 18:25:06,791 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:25:06,791 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:25:06,805 INFO ]: Start isEmpty. Operand 10 states. [2018-06-26 18:25:06,815 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:25:06,815 INFO ]: Found error trace [2018-06-26 18:25:06,816 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:25:06,816 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:06,822 INFO ]: Analyzing trace with hash 34052742, now seen corresponding path program 1 times [2018-06-26 18:25:06,824 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:06,824 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:06,860 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:06,860 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:06,860 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:06,912 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:06,962 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:25:06,964 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:25:06,964 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:25:06,966 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:25:06,977 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:25:06,977 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:25:06,980 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-26 18:25:07,103 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:07,103 INFO ]: Finished difference Result 15 states and 21 transitions. [2018-06-26 18:25:07,104 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:25:07,105 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:25:07,105 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:07,112 INFO ]: With dead ends: 15 [2018-06-26 18:25:07,113 INFO ]: Without dead ends: 15 [2018-06-26 18:25:07,114 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 [2018-06-26 18:25:07,128 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-26 18:25:07,164 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-26 18:25:07,165 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-26 18:25:07,166 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2018-06-26 18:25:07,167 INFO ]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 5 [2018-06-26 18:25:07,168 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:07,168 INFO ]: Abstraction has 15 states and 21 transitions. [2018-06-26 18:25:07,168 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:25:07,168 INFO ]: Start isEmpty. Operand 15 states and 21 transitions. [2018-06-26 18:25:07,169 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 18:25:07,169 INFO ]: Found error trace [2018-06-26 18:25:07,169 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:25:07,169 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:07,170 INFO ]: Analyzing trace with hash -746253795, now seen corresponding path program 1 times [2018-06-26 18:25:07,170 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:07,170 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:07,171 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:07,171 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:07,171 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:07,187 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:07,280 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:25:07,280 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:25:07,280 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:25:07,282 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:25:07,282 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:25:07,282 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:25:07,282 INFO ]: Start difference. First operand 15 states and 21 transitions. Second operand 3 states. [2018-06-26 18:25:07,461 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:07,461 INFO ]: Finished difference Result 20 states and 29 transitions. [2018-06-26 18:25:07,462 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:25:07,462 INFO ]: Start accepts. Automaton has 3 states. Word has length 10 [2018-06-26 18:25:07,462 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:07,463 INFO ]: With dead ends: 20 [2018-06-26 18:25:07,463 INFO ]: Without dead ends: 20 [2018-06-26 18:25:07,464 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 [2018-06-26 18:25:07,464 INFO ]: Start minimizeSevpa. Operand 20 states. [2018-06-26 18:25:07,470 INFO ]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-06-26 18:25:07,471 INFO ]: Start removeUnreachable. Operand 20 states. [2018-06-26 18:25:07,472 INFO ]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2018-06-26 18:25:07,472 INFO ]: Start accepts. Automaton has 20 states and 29 transitions. Word has length 10 [2018-06-26 18:25:07,472 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:07,472 INFO ]: Abstraction has 20 states and 29 transitions. [2018-06-26 18:25:07,472 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:25:07,472 INFO ]: Start isEmpty. Operand 20 states and 29 transitions. [2018-06-26 18:25:07,473 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-26 18:25:07,473 INFO ]: Found error trace [2018-06-26 18:25:07,473 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:25:07,473 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:07,473 INFO ]: Analyzing trace with hash -1995253638, now seen corresponding path program 1 times [2018-06-26 18:25:07,473 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:07,473 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:07,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:07,474 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:07,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:07,519 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:08,091 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:25:08,092 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:25:08,092 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:25:08,100 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:08,145 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:08,154 INFO ]: Computing forward predicates... [2018-06-26 18:25:08,310 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:25:08,336 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:25:08,336 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-06-26 18:25:08,337 INFO ]: Interpolant automaton has 11 states [2018-06-26 18:25:08,337 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-26 18:25:08,337 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-26 18:25:08,337 INFO ]: Start difference. First operand 20 states and 29 transitions. Second operand 11 states. [2018-06-26 18:25:09,259 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:09,259 INFO ]: Finished difference Result 46 states and 64 transitions. [2018-06-26 18:25:09,259 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-26 18:25:09,259 INFO ]: Start accepts. Automaton has 11 states. Word has length 15 [2018-06-26 18:25:09,259 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:09,262 INFO ]: With dead ends: 46 [2018-06-26 18:25:09,262 INFO ]: Without dead ends: 36 [2018-06-26 18:25:09,263 INFO ]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2018-06-26 18:25:09,263 INFO ]: Start minimizeSevpa. Operand 36 states. [2018-06-26 18:25:09,270 INFO ]: Finished minimizeSevpa. Reduced states from 36 to 31. [2018-06-26 18:25:09,270 INFO ]: Start removeUnreachable. Operand 31 states. [2018-06-26 18:25:09,271 INFO ]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2018-06-26 18:25:09,271 INFO ]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 15 [2018-06-26 18:25:09,271 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:09,272 INFO ]: Abstraction has 31 states and 42 transitions. [2018-06-26 18:25:09,272 INFO ]: Interpolant automaton has 11 states. [2018-06-26 18:25:09,272 INFO ]: Start isEmpty. Operand 31 states and 42 transitions. [2018-06-26 18:25:09,272 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-26 18:25:09,273 INFO ]: Found error trace [2018-06-26 18:25:09,273 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:25:09,273 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:09,273 INFO ]: Analyzing trace with hash -1995254599, now seen corresponding path program 1 times [2018-06-26 18:25:09,273 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:09,273 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:09,273 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:09,273 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:09,273 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:09,288 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:09,343 INFO ]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-26 18:25:09,343 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:25:09,343 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-26 18:25:09,344 INFO ]: Interpolant automaton has 4 states [2018-06-26 18:25:09,344 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-26 18:25:09,344 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:25:09,344 INFO ]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2018-06-26 18:25:09,360 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:09,360 INFO ]: Finished difference Result 34 states and 42 transitions. [2018-06-26 18:25:09,360 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-26 18:25:09,360 INFO ]: Start accepts. Automaton has 4 states. Word has length 15 [2018-06-26 18:25:09,360 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:09,361 INFO ]: With dead ends: 34 [2018-06-26 18:25:09,361 INFO ]: Without dead ends: 27 [2018-06-26 18:25:09,362 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:25:09,362 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-26 18:25:09,365 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-06-26 18:25:09,365 INFO ]: Start removeUnreachable. Operand 25 states. [2018-06-26 18:25:09,366 INFO ]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2018-06-26 18:25:09,366 INFO ]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 15 [2018-06-26 18:25:09,366 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:09,366 INFO ]: Abstraction has 25 states and 31 transitions. [2018-06-26 18:25:09,366 INFO ]: Interpolant automaton has 4 states. [2018-06-26 18:25:09,366 INFO ]: Start isEmpty. Operand 25 states and 31 transitions. [2018-06-26 18:25:09,367 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-26 18:25:09,367 INFO ]: Found error trace [2018-06-26 18:25:09,367 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:25:09,367 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:09,367 INFO ]: Analyzing trace with hash -2023882789, now seen corresponding path program 2 times [2018-06-26 18:25:09,367 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:09,367 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:09,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:09,368 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:25:09,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:09,382 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:09,567 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:25:09,567 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:25:09,567 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:25:09,572 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-26 18:25:09,596 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-26 18:25:09,596 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:09,598 INFO ]: Computing forward predicates... [2018-06-26 18:25:09,719 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:25:09,739 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:25:09,739 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2018-06-26 18:25:09,739 INFO ]: Interpolant automaton has 14 states [2018-06-26 18:25:09,739 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-26 18:25:09,739 INFO ]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-06-26 18:25:09,740 INFO ]: Start difference. First operand 25 states and 31 transitions. Second operand 14 states. [2018-06-26 18:25:10,069 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:10,069 INFO ]: Finished difference Result 37 states and 47 transitions. [2018-06-26 18:25:10,069 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-26 18:25:10,069 INFO ]: Start accepts. Automaton has 14 states. Word has length 15 [2018-06-26 18:25:10,069 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:10,070 INFO ]: With dead ends: 37 [2018-06-26 18:25:10,070 INFO ]: Without dead ends: 27 [2018-06-26 18:25:10,071 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2018-06-26 18:25:10,071 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-26 18:25:10,076 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-06-26 18:25:10,076 INFO ]: Start removeUnreachable. Operand 24 states. [2018-06-26 18:25:10,076 INFO ]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2018-06-26 18:25:10,077 INFO ]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2018-06-26 18:25:10,077 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:10,077 INFO ]: Abstraction has 24 states and 29 transitions. [2018-06-26 18:25:10,077 INFO ]: Interpolant automaton has 14 states. [2018-06-26 18:25:10,077 INFO ]: Start isEmpty. Operand 24 states and 29 transitions. [2018-06-26 18:25:10,077 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-26 18:25:10,077 INFO ]: Found error trace [2018-06-26 18:25:10,077 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:25:10,078 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:25:10,078 INFO ]: Analyzing trace with hash -187799175, now seen corresponding path program 3 times [2018-06-26 18:25:10,078 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:25:10,078 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:25:10,078 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:10,079 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:25:10,079 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:25:10,099 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:10,216 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:25:10,216 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:25:10,216 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:25:10,221 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-26 18:25:10,264 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-26 18:25:10,264 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:25:10,266 INFO ]: Computing forward predicates... [2018-06-26 18:25:10,439 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-26 18:25:10,458 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:25:10,458 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2018-06-26 18:25:10,459 INFO ]: Interpolant automaton has 14 states [2018-06-26 18:25:10,459 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-26 18:25:10,459 INFO ]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-06-26 18:25:10,459 INFO ]: Start difference. First operand 24 states and 29 transitions. Second operand 14 states. [2018-06-26 18:25:10,587 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:25:10,588 INFO ]: Finished difference Result 19 states and 21 transitions. [2018-06-26 18:25:10,588 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-26 18:25:10,588 INFO ]: Start accepts. Automaton has 14 states. Word has length 15 [2018-06-26 18:25:10,588 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:25:10,588 INFO ]: With dead ends: 19 [2018-06-26 18:25:10,588 INFO ]: Without dead ends: 0 [2018-06-26 18:25:10,588 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2018-06-26 18:25:10,588 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:25:10,588 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:25:10,588 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:25:10,588 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:25:10,588 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-06-26 18:25:10,588 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:25:10,589 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:25:10,589 INFO ]: Interpolant automaton has 14 states. [2018-06-26 18:25:10,589 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:25:10,589 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:25:10,591 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:25:10,592 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:25:10 BasicIcfg [2018-06-26 18:25:10,592 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:25:10,593 INFO ]: Toolchain (without parser) took 4435.35 ms. Allocated memory was 305.7 MB in the beginning and 341.3 MB in the end (delta: 35.7 MB). Free memory was 262.1 MB in the beginning and 272.9 MB in the end (delta: -10.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:10,595 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:25:10,595 INFO ]: ChcToBoogie took 61.34 ms. Allocated memory is still 305.7 MB. Free memory was 262.1 MB in the beginning and 260.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:10,596 INFO ]: Boogie Preprocessor took 33.64 ms. Allocated memory is still 305.7 MB. Free memory was 260.1 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:10,596 INFO ]: RCFGBuilder took 330.43 ms. Allocated memory is still 305.7 MB. Free memory was 258.1 MB in the beginning and 250.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:10,597 INFO ]: BlockEncodingV2 took 126.14 ms. Allocated memory is still 305.7 MB. Free memory was 250.1 MB in the beginning and 246.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:10,598 INFO ]: TraceAbstraction took 3869.66 ms. Allocated memory was 305.7 MB in the beginning and 341.3 MB in the end (delta: 35.7 MB). Free memory was 246.1 MB in the beginning and 272.9 MB in the end (delta: -26.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 3.6 GB. [2018-06-26 18:25:10,602 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 18 locations, 23 edges - StatisticsResult: Encoded RCFG 10 locations, 14 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.34 ms. Allocated memory is still 305.7 MB. Free memory was 262.1 MB in the beginning and 260.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 33.64 ms. Allocated memory is still 305.7 MB. Free memory was 260.1 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 330.43 ms. Allocated memory is still 305.7 MB. Free memory was 258.1 MB in the beginning and 250.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 126.14 ms. Allocated memory is still 305.7 MB. Free memory was 250.1 MB in the beginning and 246.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3869.66 ms. Allocated memory was 305.7 MB in the beginning and 341.3 MB in the end (delta: 35.7 MB). Free memory was 246.1 MB in the beginning and 272.9 MB in the end (delta: -26.7 MB). Peak memory consumption was 8.9 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, 10 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 39 SDslu, 107 SDs, 0 SdLazy, 462 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=3, 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 5085 SizeOfPredicates, 45 NumberOfNonLiveVariables, 332 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 42/66 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/max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-25-10-618.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-25-10-618.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-25-10-618.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-25-10-618.csv Received shutdown request...