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_No_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.42.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:40:50,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:40:50,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:40:50,998 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:40:50,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:40:51,000 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:40:51,001 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:40:51,005 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:40:51,006 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:40:51,008 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:40:51,009 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:40:51,009 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:40:51,010 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:40:51,011 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:40:51,016 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:40:51,017 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:40:51,018 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:40:51,032 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:40:51,033 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:40:51,034 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:40:51,035 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:40:51,038 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:40:51,038 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:40:51,038 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:40:51,039 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:40:51,045 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:40:51,046 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:40:51,046 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:40:51,047 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:40:51,047 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:40:51,048 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:40:51,049 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:40:51,049 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:40:51,052 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:40:51,053 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:40:51,054 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 10:40:51,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:40:51,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:40:51,074 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:40:51,074 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:40:51,075 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:40:51,075 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:40:51,076 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:40:51,077 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:40:51,077 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:40:51,077 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:40:51,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:40:51,077 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:40:51,078 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:40:51,078 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:40:51,078 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:40:51,078 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:40:51,078 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:40:51,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:40:51,079 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:40:51,081 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:40:51,081 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:40:51,126 INFO ]: Repository-Root is: /tmp [2018-06-22 10:40:51,140 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:40:51,144 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:40:51,148 INFO ]: Initializing SmtParser... [2018-06-22 10:40:51,148 INFO ]: SmtParser initialized [2018-06-22 10:40:51,149 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.42.smt2 [2018-06-22 10:40:51,150 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 10:40:51,228 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.42.smt2 unknown [2018-06-22 10:40:51,964 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.42.smt2 [2018-06-22 10:40:51,968 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:40:51,982 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:40:51,983 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:40:51,983 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:40:51,983 INFO ]: ChcToBoogie initialized [2018-06-22 10:40:51,993 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:40:51" (1/1) ... [2018-06-22 10:40:52,110 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52 Unit [2018-06-22 10:40:52,110 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:40:52,111 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:40:52,111 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:40:52,111 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:40:52,132 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... [2018-06-22 10:40:52,133 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... [2018-06-22 10:40:52,163 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... [2018-06-22 10:40:52,163 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... [2018-06-22 10:40:52,195 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... [2018-06-22 10:40:52,201 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... [2018-06-22 10:40:52,206 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... [2018-06-22 10:40:52,212 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:40:52,213 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:40:52,213 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:40:52,213 INFO ]: RCFGBuilder initialized [2018-06-22 10:40:52,214 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:40:52,224 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:40:52,224 INFO ]: Found specification of procedure False [2018-06-22 10:40:52,224 INFO ]: Found implementation of procedure False [2018-06-22 10:40:52,224 INFO ]: Specification and implementation of procedure combined_lturn__bar given in one single declaration [2018-06-22 10:40:52,224 INFO ]: Found specification of procedure combined_lturn__bar [2018-06-22 10:40:52,224 INFO ]: Found implementation of procedure combined_lturn__bar [2018-06-22 10:40:52,224 INFO ]: Specification and implementation of procedure lturn__bar given in one single declaration [2018-06-22 10:40:52,224 INFO ]: Found specification of procedure lturn__bar [2018-06-22 10:40:52,224 INFO ]: Found implementation of procedure lturn__bar [2018-06-22 10:40:52,225 INFO ]: Specification and implementation of procedure step_lturn__bar given in one single declaration [2018-06-22 10:40:52,225 INFO ]: Found specification of procedure step_lturn__bar [2018-06-22 10:40:52,225 INFO ]: Found implementation of procedure step_lturn__bar [2018-06-22 10:40:52,225 INFO ]: Specification and implementation of procedure combined_lturn given in one single declaration [2018-06-22 10:40:52,225 INFO ]: Found specification of procedure combined_lturn [2018-06-22 10:40:52,225 INFO ]: Found implementation of procedure combined_lturn [2018-06-22 10:40:52,225 INFO ]: Specification and implementation of procedure lturn given in one single declaration [2018-06-22 10:40:52,225 INFO ]: Found specification of procedure lturn [2018-06-22 10:40:52,225 INFO ]: Found implementation of procedure lturn [2018-06-22 10:40:52,225 INFO ]: Specification and implementation of procedure step_lturn given in one single declaration [2018-06-22 10:40:52,225 INFO ]: Found specification of procedure step_lturn [2018-06-22 10:40:52,225 INFO ]: Found implementation of procedure step_lturn [2018-06-22 10:40:52,225 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:40:52,225 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:40:52,225 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 10:40:53,761 INFO ]: Using library mode [2018-06-22 10:40:53,761 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:40:53 BoogieIcfgContainer [2018-06-22 10:40:53,762 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:40:53,764 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:40:53,764 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:40:53,767 INFO ]: TraceAbstraction initialized [2018-06-22 10:40:53,767 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:40:51" (1/3) ... [2018-06-22 10:40:53,768 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abfae30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:40:53, skipping insertion in model container [2018-06-22 10:40:53,768 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:52" (2/3) ... [2018-06-22 10:40:53,768 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abfae30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:40:53, skipping insertion in model container [2018-06-22 10:40:53,768 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:40:53" (3/3) ... [2018-06-22 10:40:53,770 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:40:53,781 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:40:53,792 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:40:53,845 INFO ]: Using default assertion order modulation [2018-06-22 10:40:53,845 INFO ]: Interprodecural is true [2018-06-22 10:40:53,845 INFO ]: Hoare is false [2018-06-22 10:40:53,845 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:40:53,845 INFO ]: Backedges is TWOTRACK [2018-06-22 10:40:53,845 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:40:53,846 INFO ]: Difference is false [2018-06-22 10:40:53,846 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:40:53,846 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:40:53,873 INFO ]: Start isEmpty. Operand 162 states. [2018-06-22 10:40:53,920 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:40:53,920 INFO ]: Found error trace [2018-06-22 10:40:53,921 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:40:53,921 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:40:53,926 INFO ]: Analyzing trace with hash 666632952, now seen corresponding path program 1 times [2018-06-22 10:40:53,928 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:40:53,929 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:40:53,973 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:53,973 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:40:53,973 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:54,260 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:40:55,002 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:40:55,005 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:40:55,005 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:40:55,007 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:40:55,022 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:40:55,023 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:40:55,025 INFO ]: Start difference. First operand 162 states. Second operand 6 states. [2018-06-22 10:40:58,119 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:40:58,119 INFO ]: Finished difference Result 246 states and 630 transitions. [2018-06-22 10:40:58,119 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:40:58,120 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:40:58,120 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:40:58,147 INFO ]: With dead ends: 246 [2018-06-22 10:40:58,147 INFO ]: Without dead ends: 243 [2018-06-22 10:40:58,149 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:40:58,168 INFO ]: Start minimizeSevpa. Operand 243 states. [2018-06-22 10:40:58,289 INFO ]: Finished minimizeSevpa. Reduced states from 243 to 221. [2018-06-22 10:40:58,290 INFO ]: Start removeUnreachable. Operand 221 states. [2018-06-22 10:40:58,297 INFO ]: Finished removeUnreachable. Reduced from 221 states to 221 states and 569 transitions. [2018-06-22 10:40:58,299 INFO ]: Start accepts. Automaton has 221 states and 569 transitions. Word has length 17 [2018-06-22 10:40:58,300 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:40:58,300 INFO ]: Abstraction has 221 states and 569 transitions. [2018-06-22 10:40:58,300 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:40:58,300 INFO ]: Start isEmpty. Operand 221 states and 569 transitions. [2018-06-22 10:40:58,310 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:40:58,311 INFO ]: Found error trace [2018-06-22 10:40:58,311 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:40:58,311 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:40:58,311 INFO ]: Analyzing trace with hash 1640687123, now seen corresponding path program 1 times [2018-06-22 10:40:58,311 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:40:58,311 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:40:58,312 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:58,312 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:40:58,312 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:58,367 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:40:58,542 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:40:58,542 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:40:58,542 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:40:58,543 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:40:58,544 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:40:58,544 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:40:58,544 INFO ]: Start difference. First operand 221 states and 569 transitions. Second operand 6 states. [2018-06-22 10:41:00,164 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:00,164 INFO ]: Finished difference Result 366 states and 1304 transitions. [2018-06-22 10:41:00,165 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:41:00,166 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:41:00,166 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:00,185 INFO ]: With dead ends: 366 [2018-06-22 10:41:00,185 INFO ]: Without dead ends: 365 [2018-06-22 10:41:00,186 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:41:00,187 INFO ]: Start minimizeSevpa. Operand 365 states. [2018-06-22 10:41:00,344 INFO ]: Finished minimizeSevpa. Reduced states from 365 to 346. [2018-06-22 10:41:00,344 INFO ]: Start removeUnreachable. Operand 346 states. [2018-06-22 10:41:00,350 INFO ]: Finished removeUnreachable. Reduced from 346 states to 346 states and 1231 transitions. [2018-06-22 10:41:00,351 INFO ]: Start accepts. Automaton has 346 states and 1231 transitions. Word has length 17 [2018-06-22 10:41:00,351 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:00,351 INFO ]: Abstraction has 346 states and 1231 transitions. [2018-06-22 10:41:00,351 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:41:00,351 INFO ]: Start isEmpty. Operand 346 states and 1231 transitions. [2018-06-22 10:41:00,358 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:41:00,359 INFO ]: Found error trace [2018-06-22 10:41:00,359 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:00,359 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:00,360 INFO ]: Analyzing trace with hash -93925632, now seen corresponding path program 1 times [2018-06-22 10:41:00,360 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:00,360 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:00,361 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:00,361 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:00,361 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:00,424 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:00,748 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:41:00,748 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:41:00,748 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 10:41:00,755 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:00,873 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:00,885 INFO ]: Computing forward predicates... [2018-06-22 10:41:01,066 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:41:01,090 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:41:01,090 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 10:41:01,091 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:41:01,091 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:41:01,091 INFO ]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:41:01,091 INFO ]: Start difference. First operand 346 states and 1231 transitions. Second operand 14 states. [2018-06-22 10:41:08,155 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:08,156 INFO ]: Finished difference Result 529 states and 2322 transitions. [2018-06-22 10:41:08,156 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:41:08,156 INFO ]: Start accepts. Automaton has 14 states. Word has length 25 [2018-06-22 10:41:08,156 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:08,173 INFO ]: With dead ends: 529 [2018-06-22 10:41:08,173 INFO ]: Without dead ends: 525 [2018-06-22 10:41:08,173 INFO ]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:41:08,174 INFO ]: Start minimizeSevpa. Operand 525 states. [2018-06-22 10:41:08,488 INFO ]: Finished minimizeSevpa. Reduced states from 525 to 477. [2018-06-22 10:41:08,488 INFO ]: Start removeUnreachable. Operand 477 states. [2018-06-22 10:41:08,499 INFO ]: Finished removeUnreachable. Reduced from 477 states to 477 states and 2081 transitions. [2018-06-22 10:41:08,499 INFO ]: Start accepts. Automaton has 477 states and 2081 transitions. Word has length 25 [2018-06-22 10:41:08,499 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:08,499 INFO ]: Abstraction has 477 states and 2081 transitions. [2018-06-22 10:41:08,499 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:41:08,499 INFO ]: Start isEmpty. Operand 477 states and 2081 transitions. [2018-06-22 10:41:08,510 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:41:08,510 INFO ]: Found error trace [2018-06-22 10:41:08,510 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:08,510 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:08,512 INFO ]: Analyzing trace with hash 42537961, now seen corresponding path program 1 times [2018-06-22 10:41:08,512 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:08,512 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:08,513 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:08,513 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:08,513 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:08,579 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:09,013 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:41:09,013 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:41:09,014 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:41:09,014 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:41:09,014 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:41:09,014 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:09,014 INFO ]: Start difference. First operand 477 states and 2081 transitions. Second operand 7 states. [2018-06-22 10:41:10,482 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:10,482 INFO ]: Finished difference Result 512 states and 2308 transitions. [2018-06-22 10:41:10,483 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:41:10,483 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:41:10,483 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:10,499 INFO ]: With dead ends: 512 [2018-06-22 10:41:10,499 INFO ]: Without dead ends: 512 [2018-06-22 10:41:10,499 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:10,500 INFO ]: Start minimizeSevpa. Operand 512 states. [2018-06-22 10:41:10,717 INFO ]: Finished minimizeSevpa. Reduced states from 512 to 486. [2018-06-22 10:41:10,718 INFO ]: Start removeUnreachable. Operand 486 states. [2018-06-22 10:41:10,727 INFO ]: Finished removeUnreachable. Reduced from 486 states to 486 states and 2177 transitions. [2018-06-22 10:41:10,727 INFO ]: Start accepts. Automaton has 486 states and 2177 transitions. Word has length 21 [2018-06-22 10:41:10,728 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:10,728 INFO ]: Abstraction has 486 states and 2177 transitions. [2018-06-22 10:41:10,728 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:41:10,728 INFO ]: Start isEmpty. Operand 486 states and 2177 transitions. [2018-06-22 10:41:10,739 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:41:10,739 INFO ]: Found error trace [2018-06-22 10:41:10,739 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:10,739 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:10,740 INFO ]: Analyzing trace with hash 99283332, now seen corresponding path program 1 times [2018-06-22 10:41:10,740 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:10,740 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:10,741 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:10,741 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:10,741 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:10,806 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:11,006 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:41:11,006 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:41:11,006 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:41:11,006 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:41:11,006 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:41:11,006 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:11,006 INFO ]: Start difference. First operand 486 states and 2177 transitions. Second operand 7 states. [2018-06-22 10:41:12,525 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:12,525 INFO ]: Finished difference Result 516 states and 2349 transitions. [2018-06-22 10:41:12,526 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:41:12,526 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:41:12,526 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:12,542 INFO ]: With dead ends: 516 [2018-06-22 10:41:12,542 INFO ]: Without dead ends: 516 [2018-06-22 10:41:12,542 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:12,542 INFO ]: Start minimizeSevpa. Operand 516 states. [2018-06-22 10:41:12,761 INFO ]: Finished minimizeSevpa. Reduced states from 516 to 496. [2018-06-22 10:41:12,761 INFO ]: Start removeUnreachable. Operand 496 states. [2018-06-22 10:41:12,772 INFO ]: Finished removeUnreachable. Reduced from 496 states to 496 states and 2259 transitions. [2018-06-22 10:41:12,772 INFO ]: Start accepts. Automaton has 496 states and 2259 transitions. Word has length 21 [2018-06-22 10:41:12,772 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:12,772 INFO ]: Abstraction has 496 states and 2259 transitions. [2018-06-22 10:41:12,772 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:41:12,772 INFO ]: Start isEmpty. Operand 496 states and 2259 transitions. [2018-06-22 10:41:12,786 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:41:12,786 INFO ]: Found error trace [2018-06-22 10:41:12,786 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:12,786 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:12,787 INFO ]: Analyzing trace with hash -234435783, now seen corresponding path program 1 times [2018-06-22 10:41:12,787 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:12,787 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:12,787 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:12,787 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:12,787 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:12,845 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:13,130 INFO ]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 10:41:13,130 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:41:13,130 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) [2018-06-22 10:41:13,144 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:41:13,239 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:13,243 INFO ]: Computing forward predicates... [2018-06-22 10:41:13,273 INFO ]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 10:41:13,293 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:41:13,293 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 10:41:13,294 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:41:13,294 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:41:13,294 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:13,294 INFO ]: Start difference. First operand 496 states and 2259 transitions. Second operand 7 states. [2018-06-22 10:41:13,665 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:13,665 INFO ]: Finished difference Result 508 states and 2523 transitions. [2018-06-22 10:41:13,665 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:41:13,665 INFO ]: Start accepts. Automaton has 7 states. Word has length 25 [2018-06-22 10:41:13,666 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:13,680 INFO ]: With dead ends: 508 [2018-06-22 10:41:13,680 INFO ]: Without dead ends: 508 [2018-06-22 10:41:13,680 INFO ]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:13,681 INFO ]: Start minimizeSevpa. Operand 508 states. [2018-06-22 10:41:13,906 INFO ]: Finished minimizeSevpa. Reduced states from 508 to 506. [2018-06-22 10:41:13,907 INFO ]: Start removeUnreachable. Operand 506 states. [2018-06-22 10:41:13,921 INFO ]: Finished removeUnreachable. Reduced from 506 states to 506 states and 2521 transitions. [2018-06-22 10:41:13,921 INFO ]: Start accepts. Automaton has 506 states and 2521 transitions. Word has length 25 [2018-06-22 10:41:13,921 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:13,921 INFO ]: Abstraction has 506 states and 2521 transitions. [2018-06-22 10:41:13,921 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:41:13,921 INFO ]: Start isEmpty. Operand 506 states and 2521 transitions. [2018-06-22 10:41:13,933 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:41:13,933 INFO ]: Found error trace [2018-06-22 10:41:13,933 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:13,933 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:13,933 INFO ]: Analyzing trace with hash 656845474, now seen corresponding path program 1 times [2018-06-22 10:41:13,933 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:13,933 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:13,934 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:13,934 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:13,934 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:13,971 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:14,180 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:41:14,181 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:41:14,181 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:41:14,181 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:41:14,181 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:41:14,181 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:41:14,181 INFO ]: Start difference. First operand 506 states and 2521 transitions. Second operand 6 states. [2018-06-22 10:41:14,371 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:14,371 INFO ]: Finished difference Result 512 states and 2544 transitions. [2018-06-22 10:41:14,372 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:41:14,372 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 10:41:14,372 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:14,382 INFO ]: With dead ends: 512 [2018-06-22 10:41:14,382 INFO ]: Without dead ends: 512 [2018-06-22 10:41:14,382 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:41:14,383 INFO ]: Start minimizeSevpa. Operand 512 states. [2018-06-22 10:41:14,559 INFO ]: Finished minimizeSevpa. Reduced states from 512 to 506. [2018-06-22 10:41:14,559 INFO ]: Start removeUnreachable. Operand 506 states. [2018-06-22 10:41:14,569 INFO ]: Finished removeUnreachable. Reduced from 506 states to 506 states and 2519 transitions. [2018-06-22 10:41:14,569 INFO ]: Start accepts. Automaton has 506 states and 2519 transitions. Word has length 21 [2018-06-22 10:41:14,569 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:14,569 INFO ]: Abstraction has 506 states and 2519 transitions. [2018-06-22 10:41:14,569 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:41:14,569 INFO ]: Start isEmpty. Operand 506 states and 2519 transitions. [2018-06-22 10:41:14,578 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:41:14,578 INFO ]: Found error trace [2018-06-22 10:41:14,578 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:14,578 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:14,578 INFO ]: Analyzing trace with hash -1980044528, now seen corresponding path program 1 times [2018-06-22 10:41:14,578 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:14,578 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:14,579 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:14,579 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:14,579 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:14,609 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:14,871 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:41:14,871 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:41:14,871 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:41:14,871 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:41:14,871 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:41:14,871 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:14,872 INFO ]: Start difference. First operand 506 states and 2519 transitions. Second operand 7 states. [2018-06-22 10:41:16,325 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:16,325 INFO ]: Finished difference Result 979 states and 7695 transitions. [2018-06-22 10:41:16,327 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:41:16,327 INFO ]: Start accepts. Automaton has 7 states. Word has length 25 [2018-06-22 10:41:16,327 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:16,376 INFO ]: With dead ends: 979 [2018-06-22 10:41:16,376 INFO ]: Without dead ends: 978 [2018-06-22 10:41:16,377 INFO ]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:16,381 INFO ]: Start minimizeSevpa. Operand 978 states. [2018-06-22 10:41:17,122 INFO ]: Finished minimizeSevpa. Reduced states from 978 to 948. [2018-06-22 10:41:17,122 INFO ]: Start removeUnreachable. Operand 948 states. [2018-06-22 10:41:17,157 INFO ]: Finished removeUnreachable. Reduced from 948 states to 948 states and 7452 transitions. [2018-06-22 10:41:17,157 INFO ]: Start accepts. Automaton has 948 states and 7452 transitions. Word has length 25 [2018-06-22 10:41:17,157 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:17,157 INFO ]: Abstraction has 948 states and 7452 transitions. [2018-06-22 10:41:17,157 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:41:17,157 INFO ]: Start isEmpty. Operand 948 states and 7452 transitions. [2018-06-22 10:41:17,170 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 10:41:17,170 INFO ]: Found error trace [2018-06-22 10:41:17,170 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:17,170 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:17,172 INFO ]: Analyzing trace with hash 352816903, now seen corresponding path program 1 times [2018-06-22 10:41:17,172 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:17,172 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:17,173 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:17,173 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:17,173 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:17,211 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:17,383 INFO ]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 10:41:17,383 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:41:17,383 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:41:17,389 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:17,479 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:17,483 INFO ]: Computing forward predicates... [2018-06-22 10:41:17,512 INFO ]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 10:41:17,539 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:41:17,539 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 10:41:17,539 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:41:17,539 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:41:17,539 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:17,539 INFO ]: Start difference. First operand 948 states and 7452 transitions. Second operand 7 states. [2018-06-22 10:41:19,044 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:19,044 INFO ]: Finished difference Result 1058 states and 10527 transitions. [2018-06-22 10:41:19,099 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:41:19,099 INFO ]: Start accepts. Automaton has 7 states. Word has length 29 [2018-06-22 10:41:19,099 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:19,160 INFO ]: With dead ends: 1058 [2018-06-22 10:41:19,160 INFO ]: Without dead ends: 1058 [2018-06-22 10:41:19,160 INFO ]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:41:19,161 INFO ]: Start minimizeSevpa. Operand 1058 states. [2018-06-22 10:41:20,220 INFO ]: Finished minimizeSevpa. Reduced states from 1058 to 1040. [2018-06-22 10:41:20,220 INFO ]: Start removeUnreachable. Operand 1040 states. [2018-06-22 10:41:20,271 INFO ]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 10345 transitions. [2018-06-22 10:41:20,271 INFO ]: Start accepts. Automaton has 1040 states and 10345 transitions. Word has length 29 [2018-06-22 10:41:20,271 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:20,271 INFO ]: Abstraction has 1040 states and 10345 transitions. [2018-06-22 10:41:20,271 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:41:20,271 INFO ]: Start isEmpty. Operand 1040 states and 10345 transitions. [2018-06-22 10:41:20,284 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 10:41:20,284 INFO ]: Found error trace [2018-06-22 10:41:20,285 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:20,285 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:20,286 INFO ]: Analyzing trace with hash -2088304041, now seen corresponding path program 2 times [2018-06-22 10:41:20,286 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:20,286 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:20,286 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:20,286 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:20,286 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:20,318 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:20,538 INFO ]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 10:41:20,538 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:41:20,538 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 10:41:20,553 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:41:20,642 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:41:20,642 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:20,647 INFO ]: Computing forward predicates... [2018-06-22 10:41:20,751 INFO ]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 10:41:20,771 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:41:20,771 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-06-22 10:41:20,772 INFO ]: Interpolant automaton has 16 states [2018-06-22 10:41:20,772 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 10:41:20,772 INFO ]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2018-06-22 10:41:20,772 INFO ]: Start difference. First operand 1040 states and 10345 transitions. Second operand 16 states. [2018-06-22 10:41:35,626 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:35,626 INFO ]: Finished difference Result 3226 states and 86083 transitions. [2018-06-22 10:41:35,626 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 10:41:35,626 INFO ]: Start accepts. Automaton has 16 states. Word has length 29 [2018-06-22 10:41:35,627 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:36,167 INFO ]: With dead ends: 3226 [2018-06-22 10:41:36,168 INFO ]: Without dead ends: 3222 [2018-06-22 10:41:36,168 INFO ]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2018-06-22 10:41:36,170 INFO ]: Start minimizeSevpa. Operand 3222 states. [2018-06-22 10:41:45,441 INFO ]: Finished minimizeSevpa. Reduced states from 3222 to 2979. [2018-06-22 10:41:45,441 INFO ]: Start removeUnreachable. Operand 2979 states. [2018-06-22 10:41:45,856 INFO ]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 79589 transitions. [2018-06-22 10:41:45,856 INFO ]: Start accepts. Automaton has 2979 states and 79589 transitions. Word has length 29 [2018-06-22 10:41:45,857 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:45,857 INFO ]: Abstraction has 2979 states and 79589 transitions. [2018-06-22 10:41:45,857 INFO ]: Interpolant automaton has 16 states. [2018-06-22 10:41:45,857 INFO ]: Start isEmpty. Operand 2979 states and 79589 transitions. [2018-06-22 10:41:45,876 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 10:41:45,876 INFO ]: Found error trace [2018-06-22 10:41:45,876 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:45,876 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:45,878 INFO ]: Analyzing trace with hash -1820679152, now seen corresponding path program 2 times [2018-06-22 10:41:45,878 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:45,878 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:45,879 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:45,879 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:41:45,879 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:45,917 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:46,129 INFO ]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:41:46,129 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:41:46,129 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 10:41:46,136 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 10:41:46,216 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:41:46,216 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:46,219 INFO ]: Computing forward predicates... [2018-06-22 10:41:46,313 INFO ]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 10:41:46,331 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:41:46,332 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2018-06-22 10:41:46,332 INFO ]: Interpolant automaton has 15 states [2018-06-22 10:41:46,332 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-22 10:41:46,332 INFO ]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-06-22 10:41:46,332 INFO ]: Start difference. First operand 2979 states and 79589 transitions. Second operand 15 states. [2018-06-22 10:41:48,492 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:48,492 INFO ]: Finished difference Result 3427 states and 120852 transitions. [2018-06-22 10:41:48,492 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 10:41:48,492 INFO ]: Start accepts. Automaton has 15 states. Word has length 29 [2018-06-22 10:41:48,493 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:51,214 INFO ]: With dead ends: 3427 [2018-06-22 10:41:51,214 INFO ]: Without dead ends: 3427 [2018-06-22 10:41:51,214 INFO ]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2018-06-22 10:41:51,216 INFO ]: Start minimizeSevpa. Operand 3427 states. Received shutdown request... [2018-06-22 10:41:51,905 WARN ]: Verification canceled [2018-06-22 10:41:51,909 WARN ]: Timeout [2018-06-22 10:41:51,909 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:41:51 BoogieIcfgContainer [2018-06-22 10:41:51,909 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:41:51,910 INFO ]: Toolchain (without parser) took 59940.88 ms. Allocated memory was 309.3 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 215.9 MB in the beginning and 554.9 MB in the end (delta: -339.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-22 10:41:51,911 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:41:51,911 INFO ]: ChcToBoogie took 127.34 ms. Allocated memory is still 309.3 MB. Free memory was 215.9 MB in the beginning and 210.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:41:51,912 INFO ]: Boogie Preprocessor took 101.50 ms. Allocated memory is still 309.3 MB. Free memory was 210.9 MB in the beginning and 207.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:41:51,912 INFO ]: RCFGBuilder took 1548.87 ms. Allocated memory was 309.3 MB in the beginning and 329.3 MB in the end (delta: 19.9 MB). Free memory was 207.9 MB in the beginning and 196.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 3.6 GB. [2018-06-22 10:41:51,913 INFO ]: TraceAbstraction took 58145.04 ms. Allocated memory was 329.3 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 194.6 MB in the beginning and 554.9 MB in the end (delta: -360.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 10:41:51,915 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 127.34 ms. Allocated memory is still 309.3 MB. Free memory was 215.9 MB in the beginning and 210.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 101.50 ms. Allocated memory is still 309.3 MB. Free memory was 210.9 MB in the beginning and 207.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1548.87 ms. Allocated memory was 309.3 MB in the beginning and 329.3 MB in the end (delta: 19.9 MB). Free memory was 207.9 MB in the beginning and 196.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 3.6 GB. * TraceAbstraction took 58145.04 ms. Allocated memory was 329.3 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 194.6 MB in the beginning and 554.9 MB in the end (delta: -360.3 MB). Peak memory consumption was 1.4 GB. 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 162 locations, 1 error locations. TIMEOUT Result, 58.0s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 38.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4211 SDtfs, 149 SDslu, 26010 SDs, 0 SdLazy, 30964 SolverSat, 1836 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2979occurred 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: 13.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 434 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 25232 SizeOfPredicates, 19 NumberOfNonLiveVariables, 4461 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 54/96 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/incremental2.42.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-41-51-926.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/incremental2.42.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-41-51-926.csv Completed graceful shutdown