java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:31:43,183 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:31:43,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:31:43,200 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:31:43,201 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:31:43,201 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:31:43,205 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:31:43,207 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:31:43,209 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:31:43,209 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:31:43,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:31:43,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:31:43,212 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:31:43,213 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:31:43,214 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:31:43,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:31:43,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:31:43,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:31:43,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:31:43,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:31:43,224 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:31:43,226 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:31:43,226 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:31:43,227 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:31:43,227 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:31:43,228 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:31:43,229 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:31:43,230 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:31:43,231 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 00:31:43,231 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 00:31:43,231 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 00:31:43,232 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 00:31:43,232 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 00:31:43,233 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 00:31:43,234 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 00:31:43,234 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:31:43,247 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:31:43,248 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:31:43,248 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:31:43,248 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:31:43,249 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:31:43,249 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:31:43,254 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:31:43,254 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:31:43,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:31:43,254 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:31:43,255 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:31:43,255 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:31:43,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:31:43,255 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:31:43,255 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:31:43,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:31:43,256 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:31:43,257 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:31:43,257 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:31:43,316 INFO ]: Repository-Root is: /tmp [2018-06-22 00:31:43,332 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:31:43,340 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:31:43,342 INFO ]: Initializing SmtParser... [2018-06-22 00:31:43,342 INFO ]: SmtParser initialized [2018-06-22 00:31:43,343 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.3.smt2 [2018-06-22 00:31:43,344 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 00:31:43,442 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.3.smt2 unknown [2018-06-22 00:31:43,876 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.3.smt2 [2018-06-22 00:31:43,886 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:31:43,892 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:31:43,892 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:31:43,892 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:31:43,893 INFO ]: ChcToBoogie initialized [2018-06-22 00:31:43,896 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:31:43" (1/1) ... [2018-06-22 00:31:44,000 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44 Unit [2018-06-22 00:31:44,000 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:31:44,001 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:31:44,001 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:31:44,001 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:31:44,023 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... [2018-06-22 00:31:44,023 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... [2018-06-22 00:31:44,034 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... [2018-06-22 00:31:44,034 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... [2018-06-22 00:31:44,056 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... [2018-06-22 00:31:44,061 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... [2018-06-22 00:31:44,064 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... [2018-06-22 00:31:44,069 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:31:44,069 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:31:44,069 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:31:44,069 INFO ]: RCFGBuilder initialized [2018-06-22 00:31:44,071 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 00:31:44,103 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:31:44,103 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:31:44,103 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:31:44,103 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:31:44,104 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:31:44,104 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:31:45,489 INFO ]: Using library mode [2018-06-22 00:31:45,493 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:31:45 BoogieIcfgContainer [2018-06-22 00:31:45,493 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:31:45,495 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:31:45,495 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:31:45,502 INFO ]: TraceAbstraction initialized [2018-06-22 00:31:45,502 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:31:43" (1/3) ... [2018-06-22 00:31:45,503 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4938bc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:31:45, skipping insertion in model container [2018-06-22 00:31:45,503 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:31:44" (2/3) ... [2018-06-22 00:31:45,504 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4938bc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:31:45, skipping insertion in model container [2018-06-22 00:31:45,504 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:31:45" (3/3) ... [2018-06-22 00:31:45,505 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:31:45,515 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:31:45,527 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:31:45,575 INFO ]: Using default assertion order modulation [2018-06-22 00:31:45,576 INFO ]: Interprodecural is true [2018-06-22 00:31:45,576 INFO ]: Hoare is false [2018-06-22 00:31:45,576 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:31:45,576 INFO ]: Backedges is TWOTRACK [2018-06-22 00:31:45,576 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:31:45,576 INFO ]: Difference is false [2018-06-22 00:31:45,576 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:31:45,576 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:31:45,597 INFO ]: Start isEmpty. Operand 147 states. [2018-06-22 00:31:45,622 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 00:31:45,622 INFO ]: Found error trace [2018-06-22 00:31:45,624 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:31:45,624 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:31:45,628 INFO ]: Analyzing trace with hash 132474473, now seen corresponding path program 1 times [2018-06-22 00:31:45,629 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:31:45,629 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:31:45,661 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:31:45,661 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:31:45,661 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:31:45,704 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:31:45,830 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:31:45,831 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:31:45,831 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:31:45,832 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:31:45,843 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:31:45,843 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:31:45,845 INFO ]: Start difference. First operand 147 states. Second operand 4 states. [2018-06-22 00:31:48,190 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:31:48,190 INFO ]: Finished difference Result 287 states and 565 transitions. [2018-06-22 00:31:48,190 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:31:48,191 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 00:31:48,192 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:31:48,232 INFO ]: With dead ends: 287 [2018-06-22 00:31:48,232 INFO ]: Without dead ends: 281 [2018-06-22 00:31:48,234 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:31:48,252 INFO ]: Start minimizeSevpa. Operand 281 states. [2018-06-22 00:31:48,358 INFO ]: Finished minimizeSevpa. Reduced states from 281 to 281. [2018-06-22 00:31:48,360 INFO ]: Start removeUnreachable. Operand 281 states. [2018-06-22 00:31:48,383 INFO ]: Finished removeUnreachable. Reduced from 281 states to 281 states and 553 transitions. [2018-06-22 00:31:48,386 INFO ]: Start accepts. Automaton has 281 states and 553 transitions. Word has length 8 [2018-06-22 00:31:48,387 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:31:48,387 INFO ]: Abstraction has 281 states and 553 transitions. [2018-06-22 00:31:48,387 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:31:48,387 INFO ]: Start isEmpty. Operand 281 states and 553 transitions. [2018-06-22 00:31:48,392 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 00:31:48,392 INFO ]: Found error trace [2018-06-22 00:31:48,392 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:31:48,393 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:31:48,393 INFO ]: Analyzing trace with hash -9330687, now seen corresponding path program 1 times [2018-06-22 00:31:48,393 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:31:48,393 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:31:48,395 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:31:48,395 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:31:48,395 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:31:48,402 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:31:48,534 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:31:48,534 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:31:48,534 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:31:48,535 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:31:48,536 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:31:48,536 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:31:48,536 INFO ]: Start difference. First operand 281 states and 553 transitions. Second operand 4 states. [2018-06-22 00:31:50,530 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:31:50,530 INFO ]: Finished difference Result 420 states and 828 transitions. [2018-06-22 00:31:50,530 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:31:50,530 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 00:31:50,531 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:31:50,557 INFO ]: With dead ends: 420 [2018-06-22 00:31:50,557 INFO ]: Without dead ends: 420 [2018-06-22 00:31:50,558 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:31:50,559 INFO ]: Start minimizeSevpa. Operand 420 states. [2018-06-22 00:31:50,693 INFO ]: Finished minimizeSevpa. Reduced states from 420 to 420. [2018-06-22 00:31:50,693 INFO ]: Start removeUnreachable. Operand 420 states. [2018-06-22 00:31:50,710 INFO ]: Finished removeUnreachable. Reduced from 420 states to 420 states and 828 transitions. [2018-06-22 00:31:50,711 INFO ]: Start accepts. Automaton has 420 states and 828 transitions. Word has length 8 [2018-06-22 00:31:50,711 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:31:50,711 INFO ]: Abstraction has 420 states and 828 transitions. [2018-06-22 00:31:50,711 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:31:50,711 INFO ]: Start isEmpty. Operand 420 states and 828 transitions. [2018-06-22 00:31:50,738 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-22 00:31:50,738 INFO ]: Found error trace [2018-06-22 00:31:50,738 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:31:50,738 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:31:50,739 INFO ]: Analyzing trace with hash -659192777, now seen corresponding path program 1 times [2018-06-22 00:31:50,739 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:31:50,739 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:31:50,740 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:31:50,740 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:31:50,740 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:31:50,785 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:31:50,919 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:31:50,919 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:31:50,919 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 00:31:50,920 INFO ]: Interpolant automaton has 7 states [2018-06-22 00:31:50,920 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 00:31:50,920 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 00:31:50,920 INFO ]: Start difference. First operand 420 states and 828 transitions. Second operand 7 states. [2018-06-22 00:32:04,276 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:32:04,276 INFO ]: Finished difference Result 1641 states and 10715 transitions. [2018-06-22 00:32:04,276 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 00:32:04,276 INFO ]: Start accepts. Automaton has 7 states. Word has length 19 [2018-06-22 00:32:04,277 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:32:05,008 INFO ]: With dead ends: 1641 [2018-06-22 00:32:05,008 INFO ]: Without dead ends: 1641 [2018-06-22 00:32:05,008 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2018-06-22 00:32:05,010 INFO ]: Start minimizeSevpa. Operand 1641 states. [2018-06-22 00:32:06,089 INFO ]: Finished minimizeSevpa. Reduced states from 1641 to 915. [2018-06-22 00:32:06,089 INFO ]: Start removeUnreachable. Operand 915 states. [2018-06-22 00:32:06,136 INFO ]: Finished removeUnreachable. Reduced from 915 states to 915 states and 2427 transitions. [2018-06-22 00:32:06,137 INFO ]: Start accepts. Automaton has 915 states and 2427 transitions. Word has length 19 [2018-06-22 00:32:06,137 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:32:06,137 INFO ]: Abstraction has 915 states and 2427 transitions. [2018-06-22 00:32:06,137 INFO ]: Interpolant automaton has 7 states. [2018-06-22 00:32:06,137 INFO ]: Start isEmpty. Operand 915 states and 2427 transitions. [2018-06-22 00:32:06,172 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-22 00:32:06,172 INFO ]: Found error trace [2018-06-22 00:32:06,172 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:32:06,172 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:32:06,172 INFO ]: Analyzing trace with hash 2076554222, now seen corresponding path program 1 times [2018-06-22 00:32:06,172 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:32:06,172 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:32:06,173 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:32:06,173 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:32:06,173 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:32:06,218 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:32:06,849 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:32:06,849 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:32:06,849 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 00:32:06,849 INFO ]: Interpolant automaton has 7 states [2018-06-22 00:32:06,849 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 00:32:06,849 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 00:32:06,849 INFO ]: Start difference. First operand 915 states and 2427 transitions. Second operand 7 states. [2018-06-22 00:32:14,597 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:32:14,597 INFO ]: Finished difference Result 3316 states and 25826 transitions. [2018-06-22 00:32:14,598 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-22 00:32:14,598 INFO ]: Start accepts. Automaton has 7 states. Word has length 19 [2018-06-22 00:32:14,598 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:32:16,166 INFO ]: With dead ends: 3316 [2018-06-22 00:32:16,166 INFO ]: Without dead ends: 3316 [2018-06-22 00:32:16,166 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-06-22 00:32:16,168 INFO ]: Start minimizeSevpa. Operand 3316 states. [2018-06-22 00:32:19,544 INFO ]: Finished minimizeSevpa. Reduced states from 3316 to 2157. [2018-06-22 00:32:19,545 INFO ]: Start removeUnreachable. Operand 2157 states. [2018-06-22 00:32:19,692 INFO ]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 6799 transitions. [2018-06-22 00:32:19,692 INFO ]: Start accepts. Automaton has 2157 states and 6799 transitions. Word has length 19 [2018-06-22 00:32:19,692 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:32:19,692 INFO ]: Abstraction has 2157 states and 6799 transitions. [2018-06-22 00:32:19,692 INFO ]: Interpolant automaton has 7 states. [2018-06-22 00:32:19,692 INFO ]: Start isEmpty. Operand 2157 states and 6799 transitions. [2018-06-22 00:32:19,718 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-22 00:32:19,718 INFO ]: Found error trace [2018-06-22 00:32:19,718 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:32:19,718 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:32:19,720 INFO ]: Analyzing trace with hash -222197400, now seen corresponding path program 1 times [2018-06-22 00:32:19,720 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:32:19,720 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:32:19,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:32:19,721 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:32:19,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:32:19,757 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:32:19,915 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:32:19,915 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 00:32:19,915 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 00:32:19,922 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:32:19,967 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:32:19,979 INFO ]: Computing forward predicates... [2018-06-22 00:32:20,142 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:32:20,176 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 00:32:20,176 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-06-22 00:32:20,177 INFO ]: Interpolant automaton has 9 states [2018-06-22 00:32:20,177 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 00:32:20,177 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-22 00:32:20,177 INFO ]: Start difference. First operand 2157 states and 6799 transitions. Second operand 9 states. Received shutdown request... [2018-06-22 00:32:44,144 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 00:32:44,144 WARN ]: Verification canceled [2018-06-22 00:32:44,149 WARN ]: Timeout [2018-06-22 00:32:44,149 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:32:44 BoogieIcfgContainer [2018-06-22 00:32:44,149 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:32:44,150 INFO ]: Toolchain (without parser) took 60263.98 ms. Allocated memory was 308.8 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 253.4 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 405.4 MB. Max. memory is 3.6 GB. [2018-06-22 00:32:44,152 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 00:32:44,152 INFO ]: ChcToBoogie took 108.55 ms. Allocated memory is still 308.8 MB. Free memory was 253.4 MB in the beginning and 249.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:32:44,153 INFO ]: Boogie Preprocessor took 67.47 ms. Allocated memory is still 308.8 MB. Free memory was 249.4 MB in the beginning and 247.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:32:44,153 INFO ]: RCFGBuilder took 1423.67 ms. Allocated memory was 308.8 MB in the beginning and 325.1 MB in the end (delta: 16.3 MB). Free memory was 247.4 MB in the beginning and 289.1 MB in the end (delta: -41.7 MB). Peak memory consumption was 66.3 MB. Max. memory is 3.6 GB. [2018-06-22 00:32:44,154 INFO ]: TraceAbstraction took 58654.66 ms. Allocated memory was 325.1 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 289.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 424.9 MB. Max. memory is 3.6 GB. [2018-06-22 00:32:44,167 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 108.55 ms. Allocated memory is still 308.8 MB. Free memory was 253.4 MB in the beginning and 249.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 67.47 ms. Allocated memory is still 308.8 MB. Free memory was 249.4 MB in the beginning and 247.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1423.67 ms. Allocated memory was 308.8 MB in the beginning and 325.1 MB in the end (delta: 16.3 MB). Free memory was 247.4 MB in the beginning and 289.1 MB in the end (delta: -41.7 MB). Peak memory consumption was 66.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 58654.66 ms. Allocated memory was 325.1 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 289.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 424.9 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 (2157states) and interpolant automaton (currently 19 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (7153 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 147 locations, 1 error locations. TIMEOUT Result, 58.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 51.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3332 SDtfs, 1368 SDslu, 6455 SDs, 0 SdLazy, 27668 SolverSat, 8449 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2157occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 1885 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 3550 SizeOfPredicates, 6 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 16/18 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/ch-triangle-location-nr.3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-32-44-177.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-32-44-177.csv Completed graceful shutdown