java -Xss4m -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/point-location.43.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 08:35:08,983 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 08:35:08,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 08:35:08,999 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 08:35:08,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 08:35:09,000 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 08:35:09,001 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 08:35:09,003 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 08:35:09,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 08:35:09,005 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 08:35:09,006 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 08:35:09,006 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 08:35:09,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 08:35:09,010 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 08:35:09,011 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 08:35:09,012 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 08:35:09,013 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 08:35:09,015 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 08:35:09,017 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 08:35:09,018 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 08:35:09,019 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 08:35:09,021 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 08:35:09,021 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 08:35:09,022 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 08:35:09,022 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 08:35:09,023 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 08:35:09,024 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 08:35:09,025 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 08:35:09,026 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 08:35:09,026 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 08:35:09,027 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 08:35:09,027 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 08:35:09,028 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 08:35:09,028 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 08:35:09,029 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 08:35:09,029 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 08:35:09,043 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 08:35:09,043 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 08:35:09,043 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 08:35:09,044 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 08:35:09,049 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 08:35:09,049 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 08:35:09,049 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 08:35:09,049 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 08:35:09,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 08:35:09,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 08:35:09,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 08:35:09,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 08:35:09,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 08:35:09,050 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 08:35:09,051 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 08:35:09,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 08:35:09,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 08:35:09,051 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 08:35:09,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 08:35:09,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 08:35:09,052 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 08:35:09,053 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 08:35:09,053 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 08:35:09,093 INFO ]: Repository-Root is: /tmp [2018-06-25 08:35:09,112 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 08:35:09,116 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 08:35:09,118 INFO ]: Initializing SmtParser... [2018-06-25 08:35:09,118 INFO ]: SmtParser initialized [2018-06-25 08:35:09,119 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.43.smt2 [2018-06-25 08:35:09,120 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 [2018-06-25 08:35:09,209 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.43.smt2 unknown [2018-06-25 08:35:09,713 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.43.smt2 [2018-06-25 08:35:09,720 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 08:35:09,729 INFO ]: Walking toolchain with 4 elements. [2018-06-25 08:35:09,729 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 08:35:09,729 INFO ]: Initializing ChcToBoogie... [2018-06-25 08:35:09,730 INFO ]: ChcToBoogie initialized [2018-06-25 08:35:09,733 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,838 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09 Unit [2018-06-25 08:35:09,838 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 08:35:09,838 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 08:35:09,838 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 08:35:09,838 INFO ]: Boogie Preprocessor initialized [2018-06-25 08:35:09,859 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,859 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,880 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,880 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,911 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,915 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,926 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (1/1) ... [2018-06-25 08:35:09,931 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 08:35:09,931 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 08:35:09,931 INFO ]: Initializing RCFGBuilder... [2018-06-25 08:35:09,931 INFO ]: RCFGBuilder initialized [2018-06-25 08:35:09,932 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (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) [2018-06-25 08:35:09,964 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 08:35:09,964 INFO ]: Found specification of procedure gotoProc [2018-06-25 08:35:09,964 INFO ]: Found implementation of procedure gotoProc [2018-06-25 08:35:09,964 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 08:35:09,964 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 08:35:09,964 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 [2018-06-25 08:35:11,837 INFO ]: Using library mode [2018-06-25 08:35:11,838 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:35:11 BoogieIcfgContainer [2018-06-25 08:35:11,838 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 08:35:11,839 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 08:35:11,839 INFO ]: Initializing TraceAbstraction... [2018-06-25 08:35:11,842 INFO ]: TraceAbstraction initialized [2018-06-25 08:35:11,842 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:35:09" (1/3) ... [2018-06-25 08:35:11,843 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de458db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 08:35:11, skipping insertion in model container [2018-06-25 08:35:11,844 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:35:09" (2/3) ... [2018-06-25 08:35:11,844 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de458db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 08:35:11, skipping insertion in model container [2018-06-25 08:35:11,844 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:35:11" (3/3) ... [2018-06-25 08:35:11,845 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 08:35:11,854 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 08:35:11,863 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 08:35:11,919 INFO ]: Using default assertion order modulation [2018-06-25 08:35:11,919 INFO ]: Interprodecural is true [2018-06-25 08:35:11,919 INFO ]: Hoare is false [2018-06-25 08:35:11,919 INFO ]: Compute interpolants for FPandBP [2018-06-25 08:35:11,919 INFO ]: Backedges is TWOTRACK [2018-06-25 08:35:11,919 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 08:35:11,920 INFO ]: Difference is false [2018-06-25 08:35:11,920 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 08:35:11,920 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 08:35:11,948 INFO ]: Start isEmpty. Operand 147 states. [2018-06-25 08:35:11,964 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 08:35:11,964 INFO ]: Found error trace [2018-06-25 08:35:11,966 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:35:11,966 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:35:11,971 INFO ]: Analyzing trace with hash 145653055, now seen corresponding path program 1 times [2018-06-25 08:35:11,973 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:35:11,974 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:35:12,021 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:12,022 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:35:12,022 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:12,051 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:35:12,094 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:35:12,096 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:35:12,096 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-25 08:35:12,098 INFO ]: Interpolant automaton has 2 states [2018-06-25 08:35:12,111 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-25 08:35:12,112 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 08:35:12,113 INFO ]: Start difference. First operand 147 states. Second operand 2 states. [2018-06-25 08:35:12,182 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:35:12,182 INFO ]: Finished difference Result 145 states and 284 transitions. [2018-06-25 08:35:12,182 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-25 08:35:12,183 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-25 08:35:12,183 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:35:12,229 INFO ]: With dead ends: 145 [2018-06-25 08:35:12,230 INFO ]: Without dead ends: 142 [2018-06-25 08:35:12,232 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 08:35:12,262 INFO ]: Start minimizeSevpa. Operand 142 states. [2018-06-25 08:35:12,345 INFO ]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-06-25 08:35:12,348 INFO ]: Start removeUnreachable. Operand 142 states. [2018-06-25 08:35:12,364 INFO ]: Finished removeUnreachable. Reduced from 142 states to 142 states and 278 transitions. [2018-06-25 08:35:12,365 INFO ]: Start accepts. Automaton has 142 states and 278 transitions. Word has length 7 [2018-06-25 08:35:12,365 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:35:12,365 INFO ]: Abstraction has 142 states and 278 transitions. [2018-06-25 08:35:12,365 INFO ]: Interpolant automaton has 2 states. [2018-06-25 08:35:12,365 INFO ]: Start isEmpty. Operand 142 states and 278 transitions. [2018-06-25 08:35:12,368 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 08:35:12,368 INFO ]: Found error trace [2018-06-25 08:35:12,368 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:35:12,368 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:35:12,368 INFO ]: Analyzing trace with hash -255119670, now seen corresponding path program 1 times [2018-06-25 08:35:12,368 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:35:12,368 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:35:12,369 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:12,369 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:35:12,369 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:12,383 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:35:12,533 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:35:12,533 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:35:12,533 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 08:35:12,535 INFO ]: Interpolant automaton has 4 states [2018-06-25 08:35:12,535 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 08:35:12,535 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 08:35:12,535 INFO ]: Start difference. First operand 142 states and 278 transitions. Second operand 4 states. [2018-06-25 08:35:15,767 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:35:15,767 INFO ]: Finished difference Result 281 states and 553 transitions. [2018-06-25 08:35:15,767 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:35:15,768 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-25 08:35:15,768 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:35:15,789 INFO ]: With dead ends: 281 [2018-06-25 08:35:15,789 INFO ]: Without dead ends: 281 [2018-06-25 08:35:15,790 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 [2018-06-25 08:35:15,790 INFO ]: Start minimizeSevpa. Operand 281 states. [2018-06-25 08:35:15,855 INFO ]: Finished minimizeSevpa. Reduced states from 281 to 281. [2018-06-25 08:35:15,855 INFO ]: Start removeUnreachable. Operand 281 states. [2018-06-25 08:35:15,869 INFO ]: Finished removeUnreachable. Reduced from 281 states to 281 states and 553 transitions. [2018-06-25 08:35:15,870 INFO ]: Start accepts. Automaton has 281 states and 553 transitions. Word has length 9 [2018-06-25 08:35:15,871 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:35:15,871 INFO ]: Abstraction has 281 states and 553 transitions. [2018-06-25 08:35:15,871 INFO ]: Interpolant automaton has 4 states. [2018-06-25 08:35:15,871 INFO ]: Start isEmpty. Operand 281 states and 553 transitions. [2018-06-25 08:35:15,873 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 08:35:15,873 INFO ]: Found error trace [2018-06-25 08:35:15,873 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:35:15,873 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:35:15,873 INFO ]: Analyzing trace with hash -389030215, now seen corresponding path program 1 times [2018-06-25 08:35:15,873 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:35:15,873 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:35:15,874 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:15,874 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:35:15,874 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:15,893 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:35:15,988 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:35:15,988 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:35:15,988 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 08:35:15,988 INFO ]: Interpolant automaton has 4 states [2018-06-25 08:35:15,988 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 08:35:15,988 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 08:35:15,988 INFO ]: Start difference. First operand 281 states and 553 transitions. Second operand 4 states. [2018-06-25 08:35:17,218 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:35:17,218 INFO ]: Finished difference Result 420 states and 828 transitions. [2018-06-25 08:35:17,219 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:35:17,219 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-25 08:35:17,219 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:35:17,242 INFO ]: With dead ends: 420 [2018-06-25 08:35:17,242 INFO ]: Without dead ends: 420 [2018-06-25 08:35:17,242 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 [2018-06-25 08:35:17,243 INFO ]: Start minimizeSevpa. Operand 420 states. [2018-06-25 08:35:17,315 INFO ]: Finished minimizeSevpa. Reduced states from 420 to 420. [2018-06-25 08:35:17,316 INFO ]: Start removeUnreachable. Operand 420 states. [2018-06-25 08:35:17,333 INFO ]: Finished removeUnreachable. Reduced from 420 states to 420 states and 828 transitions. [2018-06-25 08:35:17,333 INFO ]: Start accepts. Automaton has 420 states and 828 transitions. Word has length 9 [2018-06-25 08:35:17,333 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:35:17,333 INFO ]: Abstraction has 420 states and 828 transitions. [2018-06-25 08:35:17,333 INFO ]: Interpolant automaton has 4 states. [2018-06-25 08:35:17,333 INFO ]: Start isEmpty. Operand 420 states and 828 transitions. [2018-06-25 08:35:17,367 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-25 08:35:17,367 INFO ]: Found error trace [2018-06-25 08:35:17,367 INFO ]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:35:17,367 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:35:17,367 INFO ]: Analyzing trace with hash -872112059, now seen corresponding path program 1 times [2018-06-25 08:35:17,367 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:35:17,367 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:35:17,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:17,368 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:35:17,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:35:17,416 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:35:17,548 INFO ]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-25 08:35:17,548 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 08:35:17,549 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 [2018-06-25 08:35:17,559 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:35:17,626 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:35:17,633 INFO ]: Computing forward predicates... [2018-06-25 08:35:18,762 INFO ]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-25 08:35:18,782 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 08:35:18,782 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-25 08:35:18,783 INFO ]: Interpolant automaton has 12 states [2018-06-25 08:35:18,783 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-25 08:35:18,783 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-25 08:35:18,783 INFO ]: Start difference. First operand 420 states and 828 transitions. Second operand 12 states. [2018-06-25 08:35:19,022 WARN ]: Spent 211.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 Received shutdown request... [2018-06-25 08:36:13,018 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-06-25 08:36:13,018 WARN ]: Verification canceled [2018-06-25 08:36:13,025 WARN ]: Timeout [2018-06-25 08:36:13,025 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 08:36:13 BoogieIcfgContainer [2018-06-25 08:36:13,025 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 08:36:13,027 INFO ]: Toolchain (without parser) took 63304.53 ms. Allocated memory was 306.7 MB in the beginning and 1.3 GB in the end (delta: 973.6 MB). Free memory was 236.2 MB in the beginning and 557.3 MB in the end (delta: -321.0 MB). Peak memory consumption was 652.6 MB. Max. memory is 3.6 GB. [2018-06-25 08:36:13,027 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 08:36:13,028 INFO ]: ChcToBoogie took 108.58 ms. Allocated memory is still 306.7 MB. Free memory was 235.2 MB in the beginning and 231.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:36:13,028 INFO ]: Boogie Preprocessor took 92.36 ms. Allocated memory is still 306.7 MB. Free memory was 231.2 MB in the beginning and 229.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:36:13,029 INFO ]: RCFGBuilder took 1906.80 ms. Allocated memory was 306.7 MB in the beginning and 320.9 MB in the end (delta: 14.2 MB). Free memory was 229.2 MB in the beginning and 253.8 MB in the end (delta: -24.5 MB). Peak memory consumption was 49.3 MB. Max. memory is 3.6 GB. [2018-06-25 08:36:13,029 INFO ]: TraceAbstraction took 61185.75 ms. Allocated memory was 320.9 MB in the beginning and 1.3 GB in the end (delta: 959.4 MB). Free memory was 253.8 MB in the beginning and 557.3 MB in the end (delta: -303.5 MB). Peak memory consumption was 656.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:36:13,037 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 108.58 ms. Allocated memory is still 306.7 MB. Free memory was 235.2 MB in the beginning and 231.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 92.36 ms. Allocated memory is still 306.7 MB. Free memory was 231.2 MB in the beginning and 229.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1906.80 ms. Allocated memory was 306.7 MB in the beginning and 320.9 MB in the end (delta: 14.2 MB). Free memory was 229.2 MB in the beginning and 253.8 MB in the end (delta: -24.5 MB). Peak memory consumption was 49.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 61185.75 ms. Allocated memory was 320.9 MB in the beginning and 1.3 GB in the end (delta: 959.4 MB). Free memory was 253.8 MB in the beginning and 557.3 MB in the end (delta: -303.5 MB). Peak memory consumption was 656.0 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 (420states) and interpolant automaton (currently 61 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (5036 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 147 locations, 1 error locations. TIMEOUT Result, 61.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 58.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3454 SDtfs, 1576 SDslu, 9085 SDs, 0 SdLazy, 43563 SolverSat, 19200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1462 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 2142 SizeOfPredicates, 6 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 10/12 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/point-location.43.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_08-36-13-052.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.43.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_08-36-13-052.csv Completed graceful shutdown