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/hopv/lia/mochi/bcopy.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:40:09,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:40:09,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:40:09,564 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:40:09,564 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:40:09,566 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:40:09,567 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:40:09,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:40:09,573 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:40:09,574 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:40:09,575 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:40:09,575 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:40:09,578 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:40:09,579 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:40:09,580 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:40:09,580 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:40:09,584 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:40:09,595 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:40:09,597 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:40:09,598 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:40:09,599 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:40:09,604 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:40:09,604 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:40:09,605 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:40:09,605 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:40:09,606 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:40:09,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:40:09,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:40:09,611 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:40:09,612 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:40:09,612 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:40:09,613 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:40:09,613 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:40:09,618 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:40:09,619 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:40:09,619 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:40:09,639 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:40:09,641 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:40:09,641 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:40:09,641 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:40:09,642 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:40:09,643 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:40:09,643 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:40:09,643 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:40:09,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:40:09,643 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:40:09,644 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:40:09,644 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:40:09,644 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:40:09,644 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:40:09,644 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:40:09,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:40:09,645 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:40:09,647 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:40:09,647 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:40:09,703 INFO ]: Repository-Root is: /tmp [2018-06-22 01:40:09,719 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:40:09,726 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:40:09,728 INFO ]: Initializing SmtParser... [2018-06-22 01:40:09,728 INFO ]: SmtParser initialized [2018-06-22 01:40:09,729 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/bcopy.smt2 [2018-06-22 01:40:09,730 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 01:40:09,833 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/bcopy.smt2 unknown [2018-06-22 01:40:10,089 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/bcopy.smt2 [2018-06-22 01:40:10,094 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:40:10,100 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:40:10,101 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:40:10,101 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:40:10,101 INFO ]: ChcToBoogie initialized [2018-06-22 01:40:10,104 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,181 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10 Unit [2018-06-22 01:40:10,181 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:40:10,181 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:40:10,182 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:40:10,182 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:40:10,205 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,206 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,213 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,213 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,218 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,221 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,223 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (1/1) ... [2018-06-22 01:40:10,225 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:40:10,226 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:40:10,226 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:40:10,226 INFO ]: RCFGBuilder initialized [2018-06-22 01:40:10,227 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (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 01:40:10,238 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:40:10,238 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:40:10,238 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:40:10,239 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:40:10,239 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:40:10,239 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 01:40:10,678 INFO ]: Using library mode [2018-06-22 01:40:10,679 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:40:10 BoogieIcfgContainer [2018-06-22 01:40:10,679 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:40:10,680 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:40:10,680 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:40:10,684 INFO ]: TraceAbstraction initialized [2018-06-22 01:40:10,684 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:40:10" (1/3) ... [2018-06-22 01:40:10,685 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62119eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:40:10, skipping insertion in model container [2018-06-22 01:40:10,685 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:40:10" (2/3) ... [2018-06-22 01:40:10,685 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62119eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:40:10, skipping insertion in model container [2018-06-22 01:40:10,686 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:40:10" (3/3) ... [2018-06-22 01:40:10,688 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:40:10,696 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:40:10,703 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:40:10,743 INFO ]: Using default assertion order modulation [2018-06-22 01:40:10,744 INFO ]: Interprodecural is true [2018-06-22 01:40:10,744 INFO ]: Hoare is false [2018-06-22 01:40:10,744 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:40:10,744 INFO ]: Backedges is TWOTRACK [2018-06-22 01:40:10,744 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:40:10,744 INFO ]: Difference is false [2018-06-22 01:40:10,744 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:40:10,744 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:40:10,761 INFO ]: Start isEmpty. Operand 30 states. [2018-06-22 01:40:10,771 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:40:10,771 INFO ]: Found error trace [2018-06-22 01:40:10,772 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:10,772 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:10,776 INFO ]: Analyzing trace with hash -298020442, now seen corresponding path program 1 times [2018-06-22 01:40:10,778 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:10,778 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:10,814 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:10,814 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:10,814 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:10,846 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:10,918 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:40:10,921 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:40:10,921 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:40:10,922 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:10,934 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:10,934 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:10,937 INFO ]: Start difference. First operand 30 states. Second operand 4 states. [2018-06-22 01:40:11,591 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:11,591 INFO ]: Finished difference Result 53 states and 73 transitions. [2018-06-22 01:40:11,592 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:11,593 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-22 01:40:11,593 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:11,604 INFO ]: With dead ends: 53 [2018-06-22 01:40:11,604 INFO ]: Without dead ends: 53 [2018-06-22 01:40:11,606 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:40:11,621 INFO ]: Start minimizeSevpa. Operand 53 states. [2018-06-22 01:40:11,649 INFO ]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-06-22 01:40:11,650 INFO ]: Start removeUnreachable. Operand 53 states. [2018-06-22 01:40:11,654 INFO ]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2018-06-22 01:40:11,655 INFO ]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 7 [2018-06-22 01:40:11,655 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:11,656 INFO ]: Abstraction has 53 states and 73 transitions. [2018-06-22 01:40:11,656 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:11,656 INFO ]: Start isEmpty. Operand 53 states and 73 transitions. [2018-06-22 01:40:11,659 INFO ]: Finished isEmpty. Found accepting run of length 17 [2018-06-22 01:40:11,659 INFO ]: Found error trace [2018-06-22 01:40:11,659 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:11,659 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:11,659 INFO ]: Analyzing trace with hash -646910345, now seen corresponding path program 1 times [2018-06-22 01:40:11,659 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:11,659 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:11,660 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:11,660 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:11,660 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:11,665 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:11,727 INFO ]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:40:11,728 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:11,728 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 [2018-06-22 01:40:11,739 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:11,778 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:11,787 INFO ]: Computing forward predicates... [2018-06-22 01:40:11,814 INFO ]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:40:11,849 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:11,849 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 01:40:11,850 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:11,850 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:11,850 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:11,850 INFO ]: Start difference. First operand 53 states and 73 transitions. Second operand 4 states. [2018-06-22 01:40:12,518 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:12,518 INFO ]: Finished difference Result 74 states and 103 transitions. [2018-06-22 01:40:12,518 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:12,518 INFO ]: Start accepts. Automaton has 4 states. Word has length 16 [2018-06-22 01:40:12,519 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:12,522 INFO ]: With dead ends: 74 [2018-06-22 01:40:12,522 INFO ]: Without dead ends: 74 [2018-06-22 01:40:12,522 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 18 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 01:40:12,523 INFO ]: Start minimizeSevpa. Operand 74 states. [2018-06-22 01:40:12,534 INFO ]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-06-22 01:40:12,534 INFO ]: Start removeUnreachable. Operand 74 states. [2018-06-22 01:40:12,538 INFO ]: Finished removeUnreachable. Reduced from 74 states to 74 states and 103 transitions. [2018-06-22 01:40:12,538 INFO ]: Start accepts. Automaton has 74 states and 103 transitions. Word has length 16 [2018-06-22 01:40:12,538 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:12,538 INFO ]: Abstraction has 74 states and 103 transitions. [2018-06-22 01:40:12,538 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:12,538 INFO ]: Start isEmpty. Operand 74 states and 103 transitions. [2018-06-22 01:40:12,542 INFO ]: Finished isEmpty. Found accepting run of length 28 [2018-06-22 01:40:12,542 INFO ]: Found error trace [2018-06-22 01:40:12,542 INFO ]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:12,542 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:12,542 INFO ]: Analyzing trace with hash -1922171460, now seen corresponding path program 1 times [2018-06-22 01:40:12,542 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:12,543 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:12,543 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:12,543 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:12,543 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:12,551 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:12,584 INFO ]: Checked inductivity of 14 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 01:40:12,584 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:12,584 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 [2018-06-22 01:40:12,597 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:12,624 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:12,626 INFO ]: Computing forward predicates... [2018-06-22 01:40:12,633 INFO ]: Checked inductivity of 14 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 01:40:12,654 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:12,654 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 01:40:12,654 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:12,654 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:12,654 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:12,654 INFO ]: Start difference. First operand 74 states and 103 transitions. Second operand 4 states. [2018-06-22 01:40:13,091 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:13,091 INFO ]: Finished difference Result 94 states and 132 transitions. [2018-06-22 01:40:13,092 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:13,092 INFO ]: Start accepts. Automaton has 4 states. Word has length 27 [2018-06-22 01:40:13,092 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:13,094 INFO ]: With dead ends: 94 [2018-06-22 01:40:13,094 INFO ]: Without dead ends: 94 [2018-06-22 01:40:13,095 INFO ]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:40:13,095 INFO ]: Start minimizeSevpa. Operand 94 states. [2018-06-22 01:40:13,105 INFO ]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-06-22 01:40:13,109 INFO ]: Start removeUnreachable. Operand 94 states. [2018-06-22 01:40:13,111 INFO ]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2018-06-22 01:40:13,111 INFO ]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 27 [2018-06-22 01:40:13,111 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:13,111 INFO ]: Abstraction has 94 states and 132 transitions. [2018-06-22 01:40:13,111 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:13,111 INFO ]: Start isEmpty. Operand 94 states and 132 transitions. [2018-06-22 01:40:13,114 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 01:40:13,114 INFO ]: Found error trace [2018-06-22 01:40:13,115 INFO ]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:13,115 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:13,115 INFO ]: Analyzing trace with hash 1529221167, now seen corresponding path program 1 times [2018-06-22 01:40:13,115 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:13,115 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:13,116 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:13,116 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:13,116 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:13,140 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:13,329 INFO ]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 01:40:13,329 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:40:13,329 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 01:40:13,330 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:40:13,330 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:40:13,330 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:40:13,330 INFO ]: Start difference. First operand 94 states and 132 transitions. Second operand 6 states. [2018-06-22 01:40:13,605 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:13,605 INFO ]: Finished difference Result 193 states and 314 transitions. [2018-06-22 01:40:13,606 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 01:40:13,606 INFO ]: Start accepts. Automaton has 6 states. Word has length 29 [2018-06-22 01:40:13,607 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:13,615 INFO ]: With dead ends: 193 [2018-06-22 01:40:13,615 INFO ]: Without dead ends: 181 [2018-06-22 01:40:13,616 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-06-22 01:40:13,616 INFO ]: Start minimizeSevpa. Operand 181 states. [2018-06-22 01:40:13,647 INFO ]: Finished minimizeSevpa. Reduced states from 181 to 101. [2018-06-22 01:40:13,647 INFO ]: Start removeUnreachable. Operand 101 states. [2018-06-22 01:40:13,649 INFO ]: Finished removeUnreachable. Reduced from 101 states to 101 states and 139 transitions. [2018-06-22 01:40:13,649 INFO ]: Start accepts. Automaton has 101 states and 139 transitions. Word has length 29 [2018-06-22 01:40:13,650 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:13,650 INFO ]: Abstraction has 101 states and 139 transitions. [2018-06-22 01:40:13,650 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:40:13,650 INFO ]: Start isEmpty. Operand 101 states and 139 transitions. [2018-06-22 01:40:13,653 INFO ]: Finished isEmpty. Found accepting run of length 57 [2018-06-22 01:40:13,654 INFO ]: Found error trace [2018-06-22 01:40:13,654 INFO ]: trace histogram [6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:13,654 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:13,654 INFO ]: Analyzing trace with hash 1065687314, now seen corresponding path program 1 times [2018-06-22 01:40:13,654 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:13,654 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:13,655 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:13,655 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:13,655 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:13,672 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:13,741 INFO ]: Checked inductivity of 81 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-06-22 01:40:13,741 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:13,741 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) [2018-06-22 01:40:13,761 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:40:13,814 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:13,818 INFO ]: Computing forward predicates... [2018-06-22 01:40:13,835 INFO ]: Checked inductivity of 81 backedges. 56 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-06-22 01:40:13,865 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:13,865 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 01:40:13,866 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:13,866 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:13,866 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:13,866 INFO ]: Start difference. First operand 101 states and 139 transitions. Second operand 4 states. [2018-06-22 01:40:14,182 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:14,182 INFO ]: Finished difference Result 155 states and 211 transitions. [2018-06-22 01:40:14,183 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:14,183 INFO ]: Start accepts. Automaton has 4 states. Word has length 56 [2018-06-22 01:40:14,183 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:14,185 INFO ]: With dead ends: 155 [2018-06-22 01:40:14,186 INFO ]: Without dead ends: 124 [2018-06-22 01:40:14,186 INFO ]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:40:14,186 INFO ]: Start minimizeSevpa. Operand 124 states. [2018-06-22 01:40:14,197 INFO ]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-06-22 01:40:14,197 INFO ]: Start removeUnreachable. Operand 124 states. [2018-06-22 01:40:14,199 INFO ]: Finished removeUnreachable. Reduced from 124 states to 124 states and 165 transitions. [2018-06-22 01:40:14,199 INFO ]: Start accepts. Automaton has 124 states and 165 transitions. Word has length 56 [2018-06-22 01:40:14,200 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:14,200 INFO ]: Abstraction has 124 states and 165 transitions. [2018-06-22 01:40:14,200 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:14,200 INFO ]: Start isEmpty. Operand 124 states and 165 transitions. [2018-06-22 01:40:14,203 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-22 01:40:14,203 INFO ]: Found error trace [2018-06-22 01:40:14,203 INFO ]: trace histogram [6, 6, 4, 4, 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] [2018-06-22 01:40:14,203 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:14,204 INFO ]: Analyzing trace with hash 270718003, now seen corresponding path program 1 times [2018-06-22 01:40:14,204 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:14,204 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:14,205 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:14,205 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:14,205 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:14,248 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:14,773 INFO ]: Checked inductivity of 80 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-06-22 01:40:14,773 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:14,773 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 -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 01:40:14,790 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:40:14,837 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:14,842 INFO ]: Computing forward predicates... [2018-06-22 01:40:15,087 INFO ]: Checked inductivity of 80 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-06-22 01:40:15,121 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:15,121 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2018-06-22 01:40:15,121 INFO ]: Interpolant automaton has 22 states [2018-06-22 01:40:15,122 INFO ]: Constructing interpolant automaton starting with 22 interpolants. [2018-06-22 01:40:15,122 INFO ]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-06-22 01:40:15,122 INFO ]: Start difference. First operand 124 states and 165 transitions. Second operand 22 states. [2018-06-22 01:40:18,545 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:18,545 INFO ]: Finished difference Result 428 states and 883 transitions. [2018-06-22 01:40:18,545 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-06-22 01:40:18,545 INFO ]: Start accepts. Automaton has 22 states. Word has length 57 [2018-06-22 01:40:18,546 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:18,556 INFO ]: With dead ends: 428 [2018-06-22 01:40:18,557 INFO ]: Without dead ends: 350 [2018-06-22 01:40:18,558 INFO ]: 0 DeclaredPredicates, 107 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=276, Invalid=2174, Unknown=0, NotChecked=0, Total=2450 [2018-06-22 01:40:18,558 INFO ]: Start minimizeSevpa. Operand 350 states. [2018-06-22 01:40:18,639 INFO ]: Finished minimizeSevpa. Reduced states from 350 to 191. [2018-06-22 01:40:18,639 INFO ]: Start removeUnreachable. Operand 191 states. [2018-06-22 01:40:18,642 INFO ]: Finished removeUnreachable. Reduced from 191 states to 191 states and 278 transitions. [2018-06-22 01:40:18,642 INFO ]: Start accepts. Automaton has 191 states and 278 transitions. Word has length 57 [2018-06-22 01:40:18,648 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:18,649 INFO ]: Abstraction has 191 states and 278 transitions. [2018-06-22 01:40:18,649 INFO ]: Interpolant automaton has 22 states. [2018-06-22 01:40:18,649 INFO ]: Start isEmpty. Operand 191 states and 278 transitions. [2018-06-22 01:40:18,657 INFO ]: Finished isEmpty. Found accepting run of length 67 [2018-06-22 01:40:18,657 INFO ]: Found error trace [2018-06-22 01:40:18,657 INFO ]: trace histogram [7, 7, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:18,657 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:18,657 INFO ]: Analyzing trace with hash -124966322, now seen corresponding path program 2 times [2018-06-22 01:40:18,657 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:18,657 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:18,661 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:18,661 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:18,661 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:18,705 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:18,761 INFO ]: Checked inductivity of 118 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-06-22 01:40:18,761 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:18,761 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:40:18,772 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 01:40:18,828 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 01:40:18,828 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:18,832 INFO ]: Computing forward predicates... [2018-06-22 01:40:18,847 INFO ]: Checked inductivity of 118 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-06-22 01:40:18,883 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:18,883 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 01:40:18,884 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:18,884 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:18,884 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:18,884 INFO ]: Start difference. First operand 191 states and 278 transitions. Second operand 4 states. [2018-06-22 01:40:19,167 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:19,167 INFO ]: Finished difference Result 196 states and 281 transitions. [2018-06-22 01:40:19,167 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:19,167 INFO ]: Start accepts. Automaton has 4 states. Word has length 66 [2018-06-22 01:40:19,168 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:19,171 INFO ]: With dead ends: 196 [2018-06-22 01:40:19,171 INFO ]: Without dead ends: 187 [2018-06-22 01:40:19,172 INFO ]: 0 DeclaredPredicates, 71 GetRequests, 68 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 01:40:19,172 INFO ]: Start minimizeSevpa. Operand 187 states. [2018-06-22 01:40:19,189 INFO ]: Finished minimizeSevpa. Reduced states from 187 to 187. [2018-06-22 01:40:19,190 INFO ]: Start removeUnreachable. Operand 187 states. [2018-06-22 01:40:19,192 INFO ]: Finished removeUnreachable. Reduced from 187 states to 187 states and 269 transitions. [2018-06-22 01:40:19,192 INFO ]: Start accepts. Automaton has 187 states and 269 transitions. Word has length 66 [2018-06-22 01:40:19,193 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:19,193 INFO ]: Abstraction has 187 states and 269 transitions. [2018-06-22 01:40:19,193 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:19,193 INFO ]: Start isEmpty. Operand 187 states and 269 transitions. [2018-06-22 01:40:19,198 INFO ]: Finished isEmpty. Found accepting run of length 115 [2018-06-22 01:40:19,198 INFO ]: Found error trace [2018-06-22 01:40:19,198 INFO ]: trace histogram [12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:19,198 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:19,199 INFO ]: Analyzing trace with hash 1216264689, now seen corresponding path program 1 times [2018-06-22 01:40:19,199 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:19,199 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:19,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:19,199 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:40:19,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:19,241 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:19,453 INFO ]: Checked inductivity of 377 backedges. 47 proven. 45 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2018-06-22 01:40:19,453 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:19,453 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:40:19,461 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:19,536 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:19,553 INFO ]: Computing forward predicates... [2018-06-22 01:40:19,941 INFO ]: Checked inductivity of 377 backedges. 221 proven. 13 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-06-22 01:40:19,965 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:19,965 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-06-22 01:40:19,965 INFO ]: Interpolant automaton has 16 states [2018-06-22 01:40:19,965 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 01:40:19,965 INFO ]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2018-06-22 01:40:19,966 INFO ]: Start difference. First operand 187 states and 269 transitions. Second operand 16 states. [2018-06-22 01:40:22,810 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:22,810 INFO ]: Finished difference Result 387 states and 755 transitions. [2018-06-22 01:40:22,811 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-06-22 01:40:22,811 INFO ]: Start accepts. Automaton has 16 states. Word has length 114 [2018-06-22 01:40:22,811 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:22,820 INFO ]: With dead ends: 387 [2018-06-22 01:40:22,820 INFO ]: Without dead ends: 387 [2018-06-22 01:40:22,821 INFO ]: 0 DeclaredPredicates, 146 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=189, Invalid=867, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 01:40:22,821 INFO ]: Start minimizeSevpa. Operand 387 states. [2018-06-22 01:40:22,875 INFO ]: Finished minimizeSevpa. Reduced states from 387 to 215. [2018-06-22 01:40:22,875 INFO ]: Start removeUnreachable. Operand 215 states. [2018-06-22 01:40:22,879 INFO ]: Finished removeUnreachable. Reduced from 215 states to 215 states and 334 transitions. [2018-06-22 01:40:22,879 INFO ]: Start accepts. Automaton has 215 states and 334 transitions. Word has length 114 [2018-06-22 01:40:22,880 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:22,880 INFO ]: Abstraction has 215 states and 334 transitions. [2018-06-22 01:40:22,880 INFO ]: Interpolant automaton has 16 states. [2018-06-22 01:40:22,880 INFO ]: Start isEmpty. Operand 215 states and 334 transitions. [2018-06-22 01:40:22,891 INFO ]: Finished isEmpty. Found accepting run of length 116 [2018-06-22 01:40:22,891 INFO ]: Found error trace [2018-06-22 01:40:22,891 INFO ]: trace histogram [12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:22,891 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:22,891 INFO ]: Analyzing trace with hash -964507820, now seen corresponding path program 1 times [2018-06-22 01:40:22,891 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:22,891 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:22,893 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:22,894 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:22,894 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:22,917 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:23,117 INFO ]: Checked inductivity of 381 backedges. 62 proven. 28 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2018-06-22 01:40:23,117 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:23,118 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:40:23,132 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:23,204 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:23,219 INFO ]: Computing forward predicates... [2018-06-22 01:40:23,234 INFO ]: Checked inductivity of 381 backedges. 238 proven. 3 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-06-22 01:40:23,268 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:23,268 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 01:40:23,269 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:40:23,269 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:40:23,269 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:40:23,269 INFO ]: Start difference. First operand 215 states and 334 transitions. Second operand 4 states. [2018-06-22 01:40:23,355 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:23,355 INFO ]: Finished difference Result 244 states and 382 transitions. [2018-06-22 01:40:23,355 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:40:23,355 INFO ]: Start accepts. Automaton has 4 states. Word has length 115 [2018-06-22 01:40:23,355 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:23,358 INFO ]: With dead ends: 244 [2018-06-22 01:40:23,358 INFO ]: Without dead ends: 213 [2018-06-22 01:40:23,358 INFO ]: 0 DeclaredPredicates, 120 GetRequests, 117 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 01:40:23,359 INFO ]: Start minimizeSevpa. Operand 213 states. [2018-06-22 01:40:23,375 INFO ]: Finished minimizeSevpa. Reduced states from 213 to 213. [2018-06-22 01:40:23,375 INFO ]: Start removeUnreachable. Operand 213 states. [2018-06-22 01:40:23,379 INFO ]: Finished removeUnreachable. Reduced from 213 states to 213 states and 330 transitions. [2018-06-22 01:40:23,379 INFO ]: Start accepts. Automaton has 213 states and 330 transitions. Word has length 115 [2018-06-22 01:40:23,379 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:23,379 INFO ]: Abstraction has 213 states and 330 transitions. [2018-06-22 01:40:23,379 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:40:23,379 INFO ]: Start isEmpty. Operand 213 states and 330 transitions. [2018-06-22 01:40:23,386 INFO ]: Finished isEmpty. Found accepting run of length 143 [2018-06-22 01:40:23,386 INFO ]: Found error trace [2018-06-22 01:40:23,386 INFO ]: trace histogram [15, 15, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:40:23,386 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:23,386 INFO ]: Analyzing trace with hash 914980973, now seen corresponding path program 1 times [2018-06-22 01:40:23,386 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:23,386 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:23,387 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:23,387 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:23,387 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:23,437 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:23,683 INFO ]: Checked inductivity of 605 backedges. 52 proven. 42 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2018-06-22 01:40:23,683 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:23,684 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:40:23,693 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:23,751 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:23,755 INFO ]: Computing forward predicates... [2018-06-22 01:40:23,835 INFO ]: Checked inductivity of 605 backedges. 340 proven. 14 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2018-06-22 01:40:23,859 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:23,859 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 12 [2018-06-22 01:40:23,860 INFO ]: Interpolant automaton has 12 states [2018-06-22 01:40:23,860 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 01:40:23,860 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 01:40:23,860 INFO ]: Start difference. First operand 213 states and 330 transitions. Second operand 12 states. [2018-06-22 01:40:24,162 WARN ]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-06-22 01:40:25,356 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:25,356 INFO ]: Finished difference Result 481 states and 997 transitions. [2018-06-22 01:40:25,356 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-06-22 01:40:25,356 INFO ]: Start accepts. Automaton has 12 states. Word has length 142 [2018-06-22 01:40:25,356 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:25,361 INFO ]: With dead ends: 481 [2018-06-22 01:40:25,361 INFO ]: Without dead ends: 322 [2018-06-22 01:40:25,361 INFO ]: 0 DeclaredPredicates, 196 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2018-06-22 01:40:25,362 INFO ]: Start minimizeSevpa. Operand 322 states. [2018-06-22 01:40:25,395 INFO ]: Finished minimizeSevpa. Reduced states from 322 to 247. [2018-06-22 01:40:25,395 INFO ]: Start removeUnreachable. Operand 247 states. [2018-06-22 01:40:25,399 INFO ]: Finished removeUnreachable. Reduced from 247 states to 247 states and 394 transitions. [2018-06-22 01:40:25,399 INFO ]: Start accepts. Automaton has 247 states and 394 transitions. Word has length 142 [2018-06-22 01:40:25,399 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:25,399 INFO ]: Abstraction has 247 states and 394 transitions. [2018-06-22 01:40:25,399 INFO ]: Interpolant automaton has 12 states. [2018-06-22 01:40:25,399 INFO ]: Start isEmpty. Operand 247 states and 394 transitions. [2018-06-22 01:40:25,411 INFO ]: Finished isEmpty. Found accepting run of length 228 [2018-06-22 01:40:25,411 INFO ]: Found error trace [2018-06-22 01:40:25,411 INFO ]: trace histogram [24, 24, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-06-22 01:40:25,411 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:40:25,411 INFO ]: Analyzing trace with hash -33158209, now seen corresponding path program 2 times [2018-06-22 01:40:25,411 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:40:25,411 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:40:25,412 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:25,412 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:40:25,412 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:40:25,494 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:25,976 INFO ]: Checked inductivity of 1621 backedges. 254 proven. 116 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked. [2018-06-22 01:40:25,976 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:40:25,976 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:40:25,983 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 01:40:26,110 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 01:40:26,110 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:40:26,121 INFO ]: Computing forward predicates... [2018-06-22 01:40:26,771 INFO ]: Checked inductivity of 1621 backedges. 769 proven. 97 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2018-06-22 01:40:26,791 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:40:26,791 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21] total 40 [2018-06-22 01:40:26,792 INFO ]: Interpolant automaton has 40 states [2018-06-22 01:40:26,792 INFO ]: Constructing interpolant automaton starting with 40 interpolants. [2018-06-22 01:40:26,792 INFO ]: CoverageRelationStatistics Valid=89, Invalid=1471, Unknown=0, NotChecked=0, Total=1560 [2018-06-22 01:40:26,792 INFO ]: Start difference. First operand 247 states and 394 transitions. Second operand 40 states. [2018-06-22 01:40:32,553 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:40:32,553 INFO ]: Finished difference Result 297 states and 459 transitions. [2018-06-22 01:40:32,553 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-06-22 01:40:32,553 INFO ]: Start accepts. Automaton has 40 states. Word has length 227 [2018-06-22 01:40:32,554 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:40:32,554 INFO ]: With dead ends: 297 [2018-06-22 01:40:32,554 INFO ]: Without dead ends: 0 [2018-06-22 01:40:32,556 INFO ]: 0 DeclaredPredicates, 327 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2357 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=865, Invalid=9847, Unknown=0, NotChecked=0, Total=10712 [2018-06-22 01:40:32,556 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:40:32,556 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:40:32,557 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:40:32,557 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:40:32,557 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2018-06-22 01:40:32,557 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:40:32,557 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:40:32,557 INFO ]: Interpolant automaton has 40 states. [2018-06-22 01:40:32,557 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:40:32,557 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:40:32,561 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:40:32 BoogieIcfgContainer [2018-06-22 01:40:32,561 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:40:32,562 INFO ]: Toolchain (without parser) took 22468.04 ms. Allocated memory was 303.0 MB in the beginning and 573.0 MB in the end (delta: 270.0 MB). Free memory was 255.4 MB in the beginning and 243.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 282.4 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:32,563 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:40:32,564 INFO ]: ChcToBoogie took 80.53 ms. Allocated memory is still 303.0 MB. Free memory was 255.4 MB in the beginning and 252.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:32,564 INFO ]: Boogie Preprocessor took 43.71 ms. Allocated memory is still 303.0 MB. Free memory was 252.4 MB in the beginning and 251.4 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-22 01:40:32,565 INFO ]: RCFGBuilder took 453.13 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 237.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:32,565 INFO ]: TraceAbstraction took 21881.14 ms. Allocated memory was 303.0 MB in the beginning and 573.0 MB in the end (delta: 270.0 MB). Free memory was 237.4 MB in the beginning and 243.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 264.4 MB. Max. memory is 3.6 GB. [2018-06-22 01:40:32,573 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 80.53 ms. Allocated memory is still 303.0 MB. Free memory was 255.4 MB in the beginning and 252.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.71 ms. Allocated memory is still 303.0 MB. Free memory was 252.4 MB in the beginning and 251.4 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * RCFGBuilder took 453.13 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 237.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 21881.14 ms. Allocated memory was 303.0 MB in the beginning and 573.0 MB in the end (delta: 270.0 MB). Free memory was 237.4 MB in the beginning and 243.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 264.4 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, 30 locations, 1 error locations. SAFE Result, 21.8s OverallTime, 11 OverallIterations, 24 TraceHistogramMax, 16.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 700 SDtfs, 1090 SDslu, 3887 SDs, 0 SdLazy, 8979 SolverSat, 1435 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1095 GetRequests, 838 SyntacticMatches, 3 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3632 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=10, 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: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 486 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1676 NumberOfCodeBlocks, 1676 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1656 ConstructedInterpolants, 0 QuantifiedInterpolants, 375680 SizeOfPredicates, 57 NumberOfNonLiveVariables, 3256 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 6179/6578 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/bcopy.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-40-32-591.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bcopy.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-40-32-591.csv Received shutdown request...