java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.16.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:36:56,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:36:56,543 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:36:56,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:36:56,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:36:56,556 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:36:56,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:36:56,560 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:36:56,562 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:36:56,563 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:36:56,564 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:36:56,564 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:36:56,565 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:36:56,566 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:36:56,567 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:36:56,567 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:36:56,569 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:36:56,571 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:36:56,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:36:56,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:36:56,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:36:56,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:36:56,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:36:56,578 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:36:56,579 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:36:56,580 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:36:56,580 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:36:56,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:36:56,582 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 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[2018-06-22 00:36:56,586 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:36:56,600 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:36:56,600 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:36:56,600 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:36:56,600 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:36:56,601 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:36:56,602 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:36:56,602 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:36:56,602 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:36:56,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:36:56,602 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:36:56,603 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:36:56,603 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:36:56,603 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:36:56,603 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:36:56,603 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:36:56,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:36:56,604 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:36:56,605 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:36:56,605 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:36:56,650 INFO ]: Repository-Root is: /tmp [2018-06-22 00:36:56,667 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:36:56,672 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:36:56,673 INFO ]: Initializing SmtParser... [2018-06-22 00:36:56,673 INFO ]: SmtParser initialized [2018-06-22 00:36:56,674 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.16.smt2 [2018-06-22 00:36:56,675 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 [2018-06-22 00:36:56,766 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.16.smt2 unknown [2018-06-22 00:36:57,598 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.16.smt2 [2018-06-22 00:36:57,603 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:36:57,615 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:36:57,615 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:36:57,615 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:36:57,615 INFO ]: ChcToBoogie initialized [2018-06-22 00:36:57,619 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,782 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57 Unit [2018-06-22 00:36:57,782 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:36:57,782 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:36:57,783 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:36:57,783 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:36:57,799 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,799 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,817 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,817 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,854 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,860 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,873 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (1/1) ... [2018-06-22 00:36:57,882 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:36:57,882 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:36:57,882 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:36:57,882 INFO ]: RCFGBuilder initialized [2018-06-22 00:36:57,883 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (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) [2018-06-22 00:36:57,896 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:36:57,896 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:36:57,896 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:36:57,896 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:36:57,896 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:36:57,896 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 [2018-06-22 00:37:00,353 INFO ]: Using library mode [2018-06-22 00:37:00,357 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:37:00 BoogieIcfgContainer [2018-06-22 00:37:00,357 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:37:00,359 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:37:00,359 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:37:00,364 INFO ]: TraceAbstraction initialized [2018-06-22 00:37:00,364 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:36:57" (1/3) ... [2018-06-22 00:37:00,365 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9051d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:37:00, skipping insertion in model container [2018-06-22 00:37:00,365 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:57" (2/3) ... [2018-06-22 00:37:00,365 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9051d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:37:00, skipping insertion in model container [2018-06-22 00:37:00,365 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:37:00" (3/3) ... [2018-06-22 00:37:00,367 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:37:00,376 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:37:00,385 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:37:00,430 INFO ]: Using default assertion order modulation [2018-06-22 00:37:00,430 INFO ]: Interprodecural is true [2018-06-22 00:37:00,430 INFO ]: Hoare is false [2018-06-22 00:37:00,430 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:37:00,430 INFO ]: Backedges is TWOTRACK [2018-06-22 00:37:00,430 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:37:00,430 INFO ]: Difference is false [2018-06-22 00:37:00,430 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:37:00,431 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:37:00,451 INFO ]: Start isEmpty. Operand 146 states. [2018-06-22 00:37:00,470 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 00:37:00,470 INFO ]: Found error trace [2018-06-22 00:37:00,471 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:00,471 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:00,477 INFO ]: Analyzing trace with hash 1496812502, now seen corresponding path program 1 times [2018-06-22 00:37:00,479 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:00,479 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:00,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:00,516 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:00,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:00,572 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:00,873 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:37:00,876 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:00,876 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:37:00,878 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:37:00,893 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:37:00,893 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:37:00,896 INFO ]: Start difference. First operand 146 states. Second operand 4 states. [2018-06-22 00:37:03,664 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:37:03,664 INFO ]: Finished difference Result 285 states and 557 transitions. [2018-06-22 00:37:03,664 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:37:03,665 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 00:37:03,665 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:37:03,709 INFO ]: With dead ends: 285 [2018-06-22 00:37:03,709 INFO ]: Without dead ends: 283 [2018-06-22 00:37:03,711 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:37:03,729 INFO ]: Start minimizeSevpa. Operand 283 states. [2018-06-22 00:37:03,834 INFO ]: Finished minimizeSevpa. Reduced states from 283 to 283. [2018-06-22 00:37:03,835 INFO ]: Start removeUnreachable. Operand 283 states. [2018-06-22 00:37:03,862 INFO ]: Finished removeUnreachable. Reduced from 283 states to 283 states and 555 transitions. [2018-06-22 00:37:03,863 INFO ]: Start accepts. Automaton has 283 states and 555 transitions. Word has length 8 [2018-06-22 00:37:03,864 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:37:03,864 INFO ]: Abstraction has 283 states and 555 transitions. [2018-06-22 00:37:03,864 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:37:03,865 INFO ]: Start isEmpty. Operand 283 states and 555 transitions. [2018-06-22 00:37:03,872 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:37:03,872 INFO ]: Found error trace [2018-06-22 00:37:03,872 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:03,872 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:03,873 INFO ]: Analyzing trace with hash -750931895, now seen corresponding path program 1 times [2018-06-22 00:37:03,873 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:03,873 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:03,874 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:03,874 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:03,874 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:03,882 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:04,117 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:37:04,117 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:04,117 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:37:04,119 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:37:04,119 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:37:04,119 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:37:04,119 INFO ]: Start difference. First operand 283 states and 555 transitions. Second operand 4 states. [2018-06-22 00:37:06,176 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:37:06,176 INFO ]: Finished difference Result 423 states and 831 transitions. [2018-06-22 00:37:06,199 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:37:06,200 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:37:06,200 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:37:06,222 INFO ]: With dead ends: 423 [2018-06-22 00:37:06,222 INFO ]: Without dead ends: 423 [2018-06-22 00:37:06,223 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:37:06,223 INFO ]: Start minimizeSevpa. Operand 423 states. [2018-06-22 00:37:06,320 INFO ]: Finished minimizeSevpa. Reduced states from 423 to 423. [2018-06-22 00:37:06,321 INFO ]: Start removeUnreachable. Operand 423 states. [2018-06-22 00:37:06,342 INFO ]: Finished removeUnreachable. Reduced from 423 states to 423 states and 831 transitions. [2018-06-22 00:37:06,342 INFO ]: Start accepts. Automaton has 423 states and 831 transitions. Word has length 9 [2018-06-22 00:37:06,342 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:37:06,342 INFO ]: Abstraction has 423 states and 831 transitions. [2018-06-22 00:37:06,342 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:37:06,342 INFO ]: Start isEmpty. Operand 423 states and 831 transitions. [2018-06-22 00:37:06,345 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:37:06,345 INFO ]: Found error trace [2018-06-22 00:37:06,345 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:06,345 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:06,345 INFO ]: Analyzing trace with hash -855289768, now seen corresponding path program 1 times [2018-06-22 00:37:06,345 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:06,345 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:06,346 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:06,346 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:06,346 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:06,372 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:06,604 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:37:06,605 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:06,605 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:37:06,605 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:37:06,605 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:37:06,605 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:37:06,605 INFO ]: Start difference. First operand 423 states and 831 transitions. Second operand 4 states. [2018-06-22 00:37:08,305 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:37:08,305 INFO ]: Finished difference Result 563 states and 1107 transitions. [2018-06-22 00:37:08,305 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:37:08,305 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:37:08,306 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:37:08,342 INFO ]: With dead ends: 563 [2018-06-22 00:37:08,342 INFO ]: Without dead ends: 563 [2018-06-22 00:37:08,342 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:37:08,343 INFO ]: Start minimizeSevpa. Operand 563 states. [2018-06-22 00:37:08,426 INFO ]: Finished minimizeSevpa. Reduced states from 563 to 563. [2018-06-22 00:37:08,426 INFO ]: Start removeUnreachable. Operand 563 states. [2018-06-22 00:37:08,444 INFO ]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1107 transitions. [2018-06-22 00:37:08,444 INFO ]: Start accepts. Automaton has 563 states and 1107 transitions. Word has length 9 [2018-06-22 00:37:08,444 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:37:08,444 INFO ]: Abstraction has 563 states and 1107 transitions. [2018-06-22 00:37:08,444 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:37:08,444 INFO ]: Start isEmpty. Operand 563 states and 1107 transitions. [2018-06-22 00:37:08,484 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-22 00:37:08,484 INFO ]: Found error trace [2018-06-22 00:37:08,484 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:08,484 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:08,485 INFO ]: Analyzing trace with hash -935013006, now seen corresponding path program 1 times [2018-06-22 00:37:08,485 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:08,485 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:08,485 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:08,485 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:08,485 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:08,537 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:09,120 INFO ]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 00:37:09,120 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:09,120 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 00:37:09,120 INFO ]: Interpolant automaton has 8 states [2018-06-22 00:37:09,120 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 00:37:09,120 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 00:37:09,120 INFO ]: Start difference. First operand 563 states and 1107 transitions. Second operand 8 states. [2018-06-22 00:37:32,744 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:37:32,744 INFO ]: Finished difference Result 2456 states and 24908 transitions. [2018-06-22 00:37:32,744 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 00:37:32,745 INFO ]: Start accepts. Automaton has 8 states. Word has length 20 [2018-06-22 00:37:32,745 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:37:33,723 INFO ]: With dead ends: 2456 [2018-06-22 00:37:33,723 INFO ]: Without dead ends: 2453 [2018-06-22 00:37:33,723 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-06-22 00:37:33,725 INFO ]: Start minimizeSevpa. Operand 2453 states. [2018-06-22 00:37:35,910 INFO ]: Finished minimizeSevpa. Reduced states from 2453 to 1155. [2018-06-22 00:37:35,910 INFO ]: Start removeUnreachable. Operand 1155 states. [2018-06-22 00:37:35,977 INFO ]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 3130 transitions. [2018-06-22 00:37:35,978 INFO ]: Start accepts. Automaton has 1155 states and 3130 transitions. Word has length 20 [2018-06-22 00:37:35,978 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:37:35,978 INFO ]: Abstraction has 1155 states and 3130 transitions. [2018-06-22 00:37:35,978 INFO ]: Interpolant automaton has 8 states. [2018-06-22 00:37:35,978 INFO ]: Start isEmpty. Operand 1155 states and 3130 transitions. [2018-06-22 00:37:36,039 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-22 00:37:36,039 INFO ]: Found error trace [2018-06-22 00:37:36,040 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:36,040 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:36,041 INFO ]: Analyzing trace with hash -936770675, now seen corresponding path program 1 times [2018-06-22 00:37:36,041 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:36,041 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:36,042 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:36,042 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:36,042 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:36,098 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:36,809 INFO ]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 00:37:36,809 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:36,809 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 00:37:36,809 INFO ]: Interpolant automaton has 8 states [2018-06-22 00:37:36,810 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 00:37:36,810 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 00:37:36,810 INFO ]: Start difference. First operand 1155 states and 3130 transitions. Second operand 8 states. Received shutdown request... [2018-06-22 00:37:57,175 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 00:37:57,175 WARN ]: Verification canceled [2018-06-22 00:37:57,181 WARN ]: Timeout [2018-06-22 00:37:57,181 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:37:57 BoogieIcfgContainer [2018-06-22 00:37:57,181 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:37:57,182 INFO ]: Toolchain (without parser) took 59578.56 ms. Allocated memory was 309.3 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 219.0 MB in the beginning and 807.2 MB in the end (delta: -588.2 MB). Peak memory consumption was 469.9 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:57,186 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 00:37:57,186 INFO ]: ChcToBoogie took 166.96 ms. Allocated memory is still 309.3 MB. Free memory was 219.0 MB in the beginning and 213.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:57,187 INFO ]: Boogie Preprocessor took 99.29 ms. Allocated memory is still 309.3 MB. Free memory was 213.0 MB in the beginning and 209.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:57,187 INFO ]: RCFGBuilder took 2474.87 ms. Allocated memory was 309.3 MB in the beginning and 355.5 MB in the end (delta: 46.1 MB). Free memory was 209.1 MB in the beginning and 324.9 MB in the end (delta: -115.8 MB). Peak memory consumption was 49.7 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:57,188 INFO ]: TraceAbstraction took 56822.78 ms. Allocated memory was 355.5 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 324.9 MB in the beginning and 807.2 MB in the end (delta: -482.3 MB). Peak memory consumption was 529.6 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:57,194 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 166.96 ms. Allocated memory is still 309.3 MB. Free memory was 219.0 MB in the beginning and 213.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 99.29 ms. Allocated memory is still 309.3 MB. Free memory was 213.0 MB in the beginning and 209.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2474.87 ms. Allocated memory was 309.3 MB in the beginning and 355.5 MB in the end (delta: 46.1 MB). Free memory was 209.1 MB in the beginning and 324.9 MB in the end (delta: -115.8 MB). Peak memory consumption was 49.7 MB. Max. memory is 3.6 GB. * TraceAbstraction took 56822.78 ms. Allocated memory was 355.5 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 324.9 MB in the beginning and 807.2 MB in the end (delta: -482.3 MB). Peak memory consumption was 529.6 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was constructing difference of abstraction (1155states) and interpolant automaton (currently 19 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (2453 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 146 locations, 1 error locations. TIMEOUT Result, 56.7s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 51.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3742 SDtfs, 1304 SDslu, 9596 SDs, 0 SdLazy, 33774 SolverSat, 4024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1155occurred in iteration=4, 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: 2.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 1298 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 1997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.16.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-37-57-215.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.16.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-37-57-215.csv Completed graceful shutdown