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/point-location.48.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:45:41,807 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:45:41,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:45:41,822 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:45:41,822 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:45:41,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:45:41,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:45:41,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:45:41,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:45:41,832 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:45:41,835 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:45:41,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:45:41,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:45:41,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:45:41,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:45:41,839 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:45:41,843 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:45:41,846 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:45:41,848 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:45:41,850 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:45:41,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:45:41,853 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:45:41,854 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:45:41,854 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:45:41,855 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:45:41,855 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:45:41,856 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:45:41,857 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:45:41,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:45:41,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:45:41,858 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:45:41,859 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:45:41,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:45:41,860 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:45:41,861 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:45:41,861 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 10:45:41,873 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:45:41,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:45:41,874 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:45:41,874 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:45:41,875 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:45:41,875 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:45:41,875 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:45:41,876 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:45:41,876 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:45:41,876 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:45:41,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:45:41,876 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:45:41,877 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:45:41,877 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:45:41,877 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:45:41,877 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:45:41,877 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:45:41,877 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:45:41,878 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:45:41,879 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:45:41,879 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:45:41,923 INFO ]: Repository-Root is: /tmp [2018-06-22 10:45:41,936 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:45:41,942 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:45:41,945 INFO ]: Initializing SmtParser... [2018-06-22 10:45:41,945 INFO ]: SmtParser initialized [2018-06-22 10:45:41,946 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.48.smt2 [2018-06-22 10:45:41,947 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 10:45:42,043 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.48.smt2 unknown [2018-06-22 10:45:42,623 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.48.smt2 [2018-06-22 10:45:42,630 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:45:42,636 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:45:42,636 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:45:42,636 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:45:42,636 INFO ]: ChcToBoogie initialized [2018-06-22 10:45:42,640 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,730 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42 Unit [2018-06-22 10:45:42,730 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:45:42,731 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:45:42,731 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:45:42,731 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:45:42,753 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,753 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,775 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,776 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,804 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,807 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,811 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (1/1) ... [2018-06-22 10:45:42,816 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:45:42,816 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:45:42,816 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:45:42,816 INFO ]: RCFGBuilder initialized [2018-06-22 10:45:42,817 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (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 10:45:42,833 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:45:42,833 INFO ]: Found specification of procedure False [2018-06-22 10:45:42,833 INFO ]: Found implementation of procedure False [2018-06-22 10:45:42,833 INFO ]: Specification and implementation of procedure step_lturn__bar given in one single declaration [2018-06-22 10:45:42,833 INFO ]: Found specification of procedure step_lturn__bar [2018-06-22 10:45:42,833 INFO ]: Found implementation of procedure step_lturn__bar [2018-06-22 10:45:42,833 INFO ]: Specification and implementation of procedure combined_lturn__bar given in one single declaration [2018-06-22 10:45:42,833 INFO ]: Found specification of procedure combined_lturn__bar [2018-06-22 10:45:42,833 INFO ]: Found implementation of procedure combined_lturn__bar [2018-06-22 10:45:42,834 INFO ]: Specification and implementation of procedure lturn__bar given in one single declaration [2018-06-22 10:45:42,834 INFO ]: Found specification of procedure lturn__bar [2018-06-22 10:45:42,834 INFO ]: Found implementation of procedure lturn__bar [2018-06-22 10:45:42,834 INFO ]: Specification and implementation of procedure step_lturn given in one single declaration [2018-06-22 10:45:42,834 INFO ]: Found specification of procedure step_lturn [2018-06-22 10:45:42,834 INFO ]: Found implementation of procedure step_lturn [2018-06-22 10:45:42,834 INFO ]: Specification and implementation of procedure combined_lturn given in one single declaration [2018-06-22 10:45:42,834 INFO ]: Found specification of procedure combined_lturn [2018-06-22 10:45:42,834 INFO ]: Found implementation of procedure combined_lturn [2018-06-22 10:45:42,834 INFO ]: Specification and implementation of procedure lturn given in one single declaration [2018-06-22 10:45:42,834 INFO ]: Found specification of procedure lturn [2018-06-22 10:45:42,834 INFO ]: Found implementation of procedure lturn [2018-06-22 10:45:42,834 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:45:42,834 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:45:42,834 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 10:45:44,029 INFO ]: Using library mode [2018-06-22 10:45:44,029 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:45:44 BoogieIcfgContainer [2018-06-22 10:45:44,029 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:45:44,031 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:45:44,031 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:45:44,034 INFO ]: TraceAbstraction initialized [2018-06-22 10:45:44,034 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:45:42" (1/3) ... [2018-06-22 10:45:44,035 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748fe7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:45:44, skipping insertion in model container [2018-06-22 10:45:44,035 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:45:42" (2/3) ... [2018-06-22 10:45:44,035 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748fe7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:45:44, skipping insertion in model container [2018-06-22 10:45:44,035 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:45:44" (3/3) ... [2018-06-22 10:45:44,037 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:45:44,049 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:45:44,059 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:45:44,110 INFO ]: Using default assertion order modulation [2018-06-22 10:45:44,110 INFO ]: Interprodecural is true [2018-06-22 10:45:44,110 INFO ]: Hoare is false [2018-06-22 10:45:44,110 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:45:44,110 INFO ]: Backedges is TWOTRACK [2018-06-22 10:45:44,110 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:45:44,110 INFO ]: Difference is false [2018-06-22 10:45:44,110 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:45:44,111 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:45:44,136 INFO ]: Start isEmpty. Operand 162 states. [2018-06-22 10:45:44,180 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:45:44,180 INFO ]: Found error trace [2018-06-22 10:45:44,181 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:45:44,181 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:45:44,191 INFO ]: Analyzing trace with hash 750863724, now seen corresponding path program 1 times [2018-06-22 10:45:44,193 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:45:44,194 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:45:44,241 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:44,241 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:45:44,241 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:44,365 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:45:44,718 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:45:44,721 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:45:44,721 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:45:44,723 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:45:44,738 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:45:44,738 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:45:44,740 INFO ]: Start difference. First operand 162 states. Second operand 6 states. [2018-06-22 10:45:47,011 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:45:47,011 INFO ]: Finished difference Result 204 states and 534 transitions. [2018-06-22 10:45:47,011 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:45:47,012 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:45:47,012 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:45:47,036 INFO ]: With dead ends: 204 [2018-06-22 10:45:47,036 INFO ]: Without dead ends: 202 [2018-06-22 10:45:47,038 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:45:47,054 INFO ]: Start minimizeSevpa. Operand 202 states. [2018-06-22 10:45:47,178 INFO ]: Finished minimizeSevpa. Reduced states from 202 to 200. [2018-06-22 10:45:47,179 INFO ]: Start removeUnreachable. Operand 200 states. [2018-06-22 10:45:47,187 INFO ]: Finished removeUnreachable. Reduced from 200 states to 200 states and 530 transitions. [2018-06-22 10:45:47,188 INFO ]: Start accepts. Automaton has 200 states and 530 transitions. Word has length 17 [2018-06-22 10:45:47,189 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:45:47,189 INFO ]: Abstraction has 200 states and 530 transitions. [2018-06-22 10:45:47,189 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:45:47,189 INFO ]: Start isEmpty. Operand 200 states and 530 transitions. [2018-06-22 10:45:47,195 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:45:47,195 INFO ]: Found error trace [2018-06-22 10:45:47,195 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:45:47,196 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:45:47,196 INFO ]: Analyzing trace with hash -867829528, now seen corresponding path program 1 times [2018-06-22 10:45:47,196 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:45:47,196 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:45:47,197 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:47,197 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:45:47,197 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:47,237 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:45:47,361 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:45:47,361 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:45:47,361 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:45:47,363 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:45:47,363 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:45:47,363 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:45:47,363 INFO ]: Start difference. First operand 200 states and 530 transitions. Second operand 6 states. [2018-06-22 10:45:48,686 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:45:48,686 INFO ]: Finished difference Result 290 states and 1045 transitions. [2018-06-22 10:45:48,686 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:45:48,686 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:45:48,687 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:45:48,698 INFO ]: With dead ends: 290 [2018-06-22 10:45:48,698 INFO ]: Without dead ends: 290 [2018-06-22 10:45:48,699 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 10:45:48,699 INFO ]: Start minimizeSevpa. Operand 290 states. [2018-06-22 10:45:48,799 INFO ]: Finished minimizeSevpa. Reduced states from 290 to 288. [2018-06-22 10:45:48,799 INFO ]: Start removeUnreachable. Operand 288 states. [2018-06-22 10:45:48,806 INFO ]: Finished removeUnreachable. Reduced from 288 states to 288 states and 1043 transitions. [2018-06-22 10:45:48,806 INFO ]: Start accepts. Automaton has 288 states and 1043 transitions. Word has length 17 [2018-06-22 10:45:48,806 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:45:48,806 INFO ]: Abstraction has 288 states and 1043 transitions. [2018-06-22 10:45:48,806 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:45:48,806 INFO ]: Start isEmpty. Operand 288 states and 1043 transitions. [2018-06-22 10:45:48,810 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:45:48,810 INFO ]: Found error trace [2018-06-22 10:45:48,810 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:45:48,810 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:45:48,811 INFO ]: Analyzing trace with hash -306717068, now seen corresponding path program 1 times [2018-06-22 10:45:48,811 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:45:48,811 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:45:48,811 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:48,811 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:45:48,811 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:48,839 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:45:49,247 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:45:49,247 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:45:49,247 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:45:49,247 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:45:49,247 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:45:49,247 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:45:49,248 INFO ]: Start difference. First operand 288 states and 1043 transitions. Second operand 6 states. [2018-06-22 10:45:50,799 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:45:50,799 INFO ]: Finished difference Result 378 states and 1719 transitions. [2018-06-22 10:45:50,799 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:45:50,799 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:45:50,800 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:45:50,811 INFO ]: With dead ends: 378 [2018-06-22 10:45:50,811 INFO ]: Without dead ends: 378 [2018-06-22 10:45:50,812 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 10:45:50,812 INFO ]: Start minimizeSevpa. Operand 378 states. [2018-06-22 10:45:51,024 INFO ]: Finished minimizeSevpa. Reduced states from 378 to 376. [2018-06-22 10:45:51,024 INFO ]: Start removeUnreachable. Operand 376 states. [2018-06-22 10:45:51,056 INFO ]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1717 transitions. [2018-06-22 10:45:51,056 INFO ]: Start accepts. Automaton has 376 states and 1717 transitions. Word has length 17 [2018-06-22 10:45:51,057 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:45:51,057 INFO ]: Abstraction has 376 states and 1717 transitions. [2018-06-22 10:45:51,057 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:45:51,057 INFO ]: Start isEmpty. Operand 376 states and 1717 transitions. [2018-06-22 10:45:51,062 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:45:51,062 INFO ]: Found error trace [2018-06-22 10:45:51,062 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 10:45:51,062 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:45:51,062 INFO ]: Analyzing trace with hash 462274104, now seen corresponding path program 1 times [2018-06-22 10:45:51,062 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:45:51,063 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:45:51,063 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:51,063 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:45:51,063 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:51,097 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:45:51,502 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:45:51,502 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:45:51,502 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:45:51,502 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:45:51,502 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:45:51,502 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:45:51,502 INFO ]: Start difference. First operand 376 states and 1717 transitions. Second operand 6 states. [2018-06-22 10:45:52,638 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:45:52,638 INFO ]: Finished difference Result 436 states and 2299 transitions. [2018-06-22 10:45:52,639 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:45:52,639 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 10:45:52,639 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:45:52,655 INFO ]: With dead ends: 436 [2018-06-22 10:45:52,655 INFO ]: Without dead ends: 436 [2018-06-22 10:45:52,655 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 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 10:45:52,655 INFO ]: Start minimizeSevpa. Operand 436 states. [2018-06-22 10:45:52,924 INFO ]: Finished minimizeSevpa. Reduced states from 436 to 429. [2018-06-22 10:45:52,924 INFO ]: Start removeUnreachable. Operand 429 states. [2018-06-22 10:45:52,933 INFO ]: Finished removeUnreachable. Reduced from 429 states to 429 states and 2275 transitions. [2018-06-22 10:45:52,933 INFO ]: Start accepts. Automaton has 429 states and 2275 transitions. Word has length 21 [2018-06-22 10:45:52,933 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:45:52,933 INFO ]: Abstraction has 429 states and 2275 transitions. [2018-06-22 10:45:52,933 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:45:52,933 INFO ]: Start isEmpty. Operand 429 states and 2275 transitions. [2018-06-22 10:45:52,938 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:45:52,938 INFO ]: Found error trace [2018-06-22 10:45:52,938 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 10:45:52,938 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:45:52,938 INFO ]: Analyzing trace with hash 2061251015, now seen corresponding path program 1 times [2018-06-22 10:45:52,938 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:45:52,938 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:45:52,939 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:52,939 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:45:52,939 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:52,955 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:45:53,329 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:45:53,330 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:45:53,330 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:45:53,330 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:45:53,330 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:45:53,330 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:45:53,330 INFO ]: Start difference. First operand 429 states and 2275 transitions. Second operand 6 states. [2018-06-22 10:45:55,722 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:45:55,722 INFO ]: Finished difference Result 711 states and 5450 transitions. [2018-06-22 10:45:55,722 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:45:55,723 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 10:45:55,723 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:45:55,755 INFO ]: With dead ends: 711 [2018-06-22 10:45:55,755 INFO ]: Without dead ends: 711 [2018-06-22 10:45:55,755 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 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 10:45:55,756 INFO ]: Start minimizeSevpa. Operand 711 states. [2018-06-22 10:45:56,550 INFO ]: Finished minimizeSevpa. Reduced states from 711 to 699. [2018-06-22 10:45:56,550 INFO ]: Start removeUnreachable. Operand 699 states. [2018-06-22 10:45:56,571 INFO ]: Finished removeUnreachable. Reduced from 699 states to 699 states and 5404 transitions. [2018-06-22 10:45:56,572 INFO ]: Start accepts. Automaton has 699 states and 5404 transitions. Word has length 21 [2018-06-22 10:45:56,572 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:45:56,572 INFO ]: Abstraction has 699 states and 5404 transitions. [2018-06-22 10:45:56,572 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:45:56,572 INFO ]: Start isEmpty. Operand 699 states and 5404 transitions. [2018-06-22 10:45:56,581 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:45:56,581 INFO ]: Found error trace [2018-06-22 10:45:56,581 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 10:45:56,581 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:45:56,581 INFO ]: Analyzing trace with hash 1391845388, now seen corresponding path program 1 times [2018-06-22 10:45:56,581 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:45:56,581 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:45:56,582 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:56,582 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:45:56,582 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:45:56,607 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:45:56,777 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:45:56,778 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:45:56,778 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 10:45:56,785 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:45:56,872 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:45:56,880 INFO ]: Computing forward predicates... [2018-06-22 10:45:57,075 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:45:57,109 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:45:57,109 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 10:45:57,109 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:45:57,109 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:45:57,109 INFO ]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:45:57,109 INFO ]: Start difference. First operand 699 states and 5404 transitions. Second operand 14 states. [2018-06-22 10:46:03,313 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:46:03,313 INFO ]: Finished difference Result 1861 states and 27811 transitions. [2018-06-22 10:46:03,313 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 10:46:03,313 INFO ]: Start accepts. Automaton has 14 states. Word has length 25 [2018-06-22 10:46:03,313 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:46:03,481 INFO ]: With dead ends: 1861 [2018-06-22 10:46:03,481 INFO ]: Without dead ends: 1851 [2018-06-22 10:46:03,481 INFO ]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:46:03,483 INFO ]: Start minimizeSevpa. Operand 1851 states. [2018-06-22 10:46:08,185 INFO ]: Finished minimizeSevpa. Reduced states from 1851 to 1814. [2018-06-22 10:46:08,185 INFO ]: Start removeUnreachable. Operand 1814 states. [2018-06-22 10:46:08,413 INFO ]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 26909 transitions. [2018-06-22 10:46:08,413 INFO ]: Start accepts. Automaton has 1814 states and 26909 transitions. Word has length 25 [2018-06-22 10:46:08,413 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:46:08,413 INFO ]: Abstraction has 1814 states and 26909 transitions. [2018-06-22 10:46:08,413 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:46:08,413 INFO ]: Start isEmpty. Operand 1814 states and 26909 transitions. [2018-06-22 10:46:08,426 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:46:08,426 INFO ]: Found error trace [2018-06-22 10:46:08,426 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 10:46:08,426 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:46:08,426 INFO ]: Analyzing trace with hash -243451512, now seen corresponding path program 1 times [2018-06-22 10:46:08,426 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:46:08,426 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:46:08,429 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:08,429 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:46:08,429 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:08,458 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:46:09,151 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:46:09,151 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:46:09,151 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 10:46:09,163 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 10:46:09,213 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:46:09,216 INFO ]: Computing forward predicates... [2018-06-22 10:46:09,457 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:46:09,477 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:46:09,477 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 10:46:09,478 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:46:09,478 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:46:09,478 INFO ]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:46:09,478 INFO ]: Start difference. First operand 1814 states and 26909 transitions. Second operand 14 states. [2018-06-22 10:46:14,929 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:46:14,929 INFO ]: Finished difference Result 2538 states and 42784 transitions. [2018-06-22 10:46:14,930 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-22 10:46:14,930 INFO ]: Start accepts. Automaton has 14 states. Word has length 25 [2018-06-22 10:46:14,930 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:46:15,096 INFO ]: With dead ends: 2538 [2018-06-22 10:46:15,096 INFO ]: Without dead ends: 2538 [2018-06-22 10:46:15,097 INFO ]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:46:15,100 INFO ]: Start minimizeSevpa. Operand 2538 states. [2018-06-22 10:46:20,609 INFO ]: Finished minimizeSevpa. Reduced states from 2538 to 2221. [2018-06-22 10:46:20,609 INFO ]: Start removeUnreachable. Operand 2221 states. [2018-06-22 10:46:20,770 INFO ]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 37686 transitions. [2018-06-22 10:46:20,770 INFO ]: Start accepts. Automaton has 2221 states and 37686 transitions. Word has length 25 [2018-06-22 10:46:20,770 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:46:20,770 INFO ]: Abstraction has 2221 states and 37686 transitions. [2018-06-22 10:46:20,770 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:46:20,770 INFO ]: Start isEmpty. Operand 2221 states and 37686 transitions. [2018-06-22 10:46:20,792 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:46:20,792 INFO ]: Found error trace [2018-06-22 10:46:20,792 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 10:46:20,792 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:46:20,793 INFO ]: Analyzing trace with hash -195014822, now seen corresponding path program 1 times [2018-06-22 10:46:20,793 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:46:20,793 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:46:20,793 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:20,793 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:46:20,793 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:20,812 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:46:20,996 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:46:20,996 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:46:20,996 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:46:20,997 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:46:20,997 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:46:20,997 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:46:20,997 INFO ]: Start difference. First operand 2221 states and 37686 transitions. Second operand 7 states. [2018-06-22 10:46:22,215 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:46:22,215 INFO ]: Finished difference Result 2771 states and 48049 transitions. [2018-06-22 10:46:22,216 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:46:22,216 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:46:22,216 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:46:22,474 INFO ]: With dead ends: 2771 [2018-06-22 10:46:22,474 INFO ]: Without dead ends: 2771 [2018-06-22 10:46:22,474 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 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 10:46:22,476 INFO ]: Start minimizeSevpa. Operand 2771 states. [2018-06-22 10:46:28,132 INFO ]: Finished minimizeSevpa. Reduced states from 2771 to 2658. [2018-06-22 10:46:28,132 INFO ]: Start removeUnreachable. Operand 2658 states. [2018-06-22 10:46:28,298 INFO ]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 45995 transitions. [2018-06-22 10:46:28,298 INFO ]: Start accepts. Automaton has 2658 states and 45995 transitions. Word has length 21 [2018-06-22 10:46:28,298 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:46:28,298 INFO ]: Abstraction has 2658 states and 45995 transitions. [2018-06-22 10:46:28,298 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:46:28,298 INFO ]: Start isEmpty. Operand 2658 states and 45995 transitions. [2018-06-22 10:46:28,314 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:46:28,314 INFO ]: Found error trace [2018-06-22 10:46:28,314 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 10:46:28,314 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:46:28,314 INFO ]: Analyzing trace with hash 1636428006, now seen corresponding path program 1 times [2018-06-22 10:46:28,314 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:46:28,314 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:46:28,316 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:28,316 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:46:28,316 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:28,331 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:46:28,521 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:46:28,522 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:46:28,522 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:46:28,522 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:46:28,522 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:46:28,522 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:46:28,522 INFO ]: Start difference. First operand 2658 states and 45995 transitions. Second operand 7 states. [2018-06-22 10:46:29,693 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:46:29,693 INFO ]: Finished difference Result 3845 states and 68517 transitions. [2018-06-22 10:46:29,694 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:46:29,694 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:46:29,694 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:46:30,063 INFO ]: With dead ends: 3845 [2018-06-22 10:46:30,063 INFO ]: Without dead ends: 3845 [2018-06-22 10:46:30,063 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 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 10:46:30,067 INFO ]: Start minimizeSevpa. Operand 3845 states. [2018-06-22 10:46:35,720 INFO ]: Finished minimizeSevpa. Reduced states from 3845 to 3755. [2018-06-22 10:46:35,720 INFO ]: Start removeUnreachable. Operand 3755 states. [2018-06-22 10:46:35,934 INFO ]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 66671 transitions. [2018-06-22 10:46:35,935 INFO ]: Start accepts. Automaton has 3755 states and 66671 transitions. Word has length 21 [2018-06-22 10:46:35,935 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:46:35,935 INFO ]: Abstraction has 3755 states and 66671 transitions. [2018-06-22 10:46:35,935 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:46:35,935 INFO ]: Start isEmpty. Operand 3755 states and 66671 transitions. [2018-06-22 10:46:35,951 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:46:35,951 INFO ]: Found error trace [2018-06-22 10:46:35,951 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 10:46:35,951 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:46:35,956 INFO ]: Analyzing trace with hash -2089927132, now seen corresponding path program 1 times [2018-06-22 10:46:35,956 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:46:35,956 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:46:35,956 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:35,956 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:46:35,956 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:46:35,982 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:46:36,167 INFO ]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 10:46:36,167 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:46:36,167 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 10:46:36,172 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:46:36,207 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:46:36,210 INFO ]: Computing forward predicates... [2018-06-22 10:46:36,263 INFO ]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 10:46:36,295 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:46:36,295 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2018-06-22 10:46:36,295 INFO ]: Interpolant automaton has 13 states [2018-06-22 10:46:36,296 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 10:46:36,296 INFO ]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-06-22 10:46:36,296 INFO ]: Start difference. First operand 3755 states and 66671 transitions. Second operand 13 states. [2018-06-22 10:46:37,379 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:46:37,379 INFO ]: Finished difference Result 3759 states and 66672 transitions. [2018-06-22 10:46:37,380 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 10:46:37,380 INFO ]: Start accepts. Automaton has 13 states. Word has length 25 [2018-06-22 10:46:37,380 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:46:37,725 INFO ]: With dead ends: 3759 [2018-06-22 10:46:37,725 INFO ]: Without dead ends: 3759 [2018-06-22 10:46:37,725 INFO ]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-06-22 10:46:37,727 INFO ]: Start minimizeSevpa. Operand 3759 states. Received shutdown request... [2018-06-22 10:46:40,012 WARN ]: Verification canceled [2018-06-22 10:46:40,017 WARN ]: Timeout [2018-06-22 10:46:40,017 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:46:40 BoogieIcfgContainer [2018-06-22 10:46:40,017 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:46:40,020 INFO ]: Toolchain (without parser) took 57387.11 ms. Allocated memory was 309.3 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 239.8 MB in the beginning and 762.7 MB in the end (delta: -522.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-22 10:46:40,021 INFO ]: SmtParser took 0.07 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 10:46:40,022 INFO ]: ChcToBoogie took 94.40 ms. Allocated memory is still 309.3 MB. Free memory was 239.8 MB in the beginning and 236.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:46:40,022 INFO ]: Boogie Preprocessor took 84.71 ms. Allocated memory is still 309.3 MB. Free memory was 236.8 MB in the beginning and 231.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:46:40,022 INFO ]: RCFGBuilder took 1213.24 ms. Allocated memory was 309.3 MB in the beginning and 324.0 MB in the end (delta: 14.7 MB). Free memory was 231.8 MB in the beginning and 274.3 MB in the end (delta: -42.6 MB). Peak memory consumption was 49.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:46:40,030 INFO ]: TraceAbstraction took 55985.81 ms. Allocated memory was 324.0 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 274.3 MB in the beginning and 762.7 MB in the end (delta: -488.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-22 10:46:40,033 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 94.40 ms. Allocated memory is still 309.3 MB. Free memory was 239.8 MB in the beginning and 236.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 84.71 ms. Allocated memory is still 309.3 MB. Free memory was 236.8 MB in the beginning and 231.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1213.24 ms. Allocated memory was 309.3 MB in the beginning and 324.0 MB in the end (delta: 14.7 MB). Free memory was 231.8 MB in the beginning and 274.3 MB in the end (delta: -42.6 MB). Peak memory consumption was 49.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 55985.81 ms. Allocated memory was 324.0 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 274.3 MB in the beginning and 762.7 MB in the end (delta: -488.4 MB). Peak memory consumption was 1.5 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, 55.9s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 25.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3460 SDtfs, 145 SDslu, 19867 SDs, 0 SdLazy, 19794 SolverSat, 1105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3755occurred in iteration=9, 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: 26.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 582 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 14368 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1060 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 16/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.48.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-46-40-050.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.48.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-46-40-050.csv Completed graceful shutdown