java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location-nr.52.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:53:33,885 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:53:33,887 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:53:33,900 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:53:33,901 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:53:33,902 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:53:33,906 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:53:33,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:53:33,909 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:53:33,912 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:53:33,912 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:53:33,913 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:53:33,914 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:53:33,915 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:53:33,915 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:53:33,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:53:33,918 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:53:33,920 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:53:33,930 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:53:33,931 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:53:33,932 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:53:33,935 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-22 00:53:33,950 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:53:33,964 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:53:33,964 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:53:33,964 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:53:33,965 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:53:33,966 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:53:33,966 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:53:33,966 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:53:33,966 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:53:33,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:53:33,967 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:53:33,967 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:53:33,967 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:53:33,967 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:53:33,967 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:53:33,968 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:53:33,968 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:53:33,968 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:53:33,970 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:53:33,971 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:53:34,009 INFO ]: Repository-Root is: /tmp [2018-06-22 00:53:34,020 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:53:34,026 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:53:34,028 INFO ]: Initializing SmtParser... [2018-06-22 00:53:34,028 INFO ]: SmtParser initialized [2018-06-22 00:53:34,029 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location-nr.52.smt2 [2018-06-22 00:53:34,030 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 00:53:34,120 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location-nr.52.smt2 unknown [2018-06-22 00:53:34,521 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location-nr.52.smt2 [2018-06-22 00:53:34,529 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:53:34,535 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:53:34,535 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:53:34,535 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:53:34,535 INFO ]: ChcToBoogie initialized [2018-06-22 00:53:34,539 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,630 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34 Unit [2018-06-22 00:53:34,630 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:53:34,631 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:53:34,631 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:53:34,631 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:53:34,649 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,649 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,659 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,659 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,672 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,676 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,679 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... [2018-06-22 00:53:34,682 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:53:34,683 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:53:34,683 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:53:34,683 INFO ]: RCFGBuilder initialized [2018-06-22 00:53:34,684 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 00:53:34,693 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:53:34,693 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:53:34,693 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:53:34,693 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:53:34,693 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:53:34,693 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:53:35,723 INFO ]: Using library mode [2018-06-22 00:53:35,723 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:53:35 BoogieIcfgContainer [2018-06-22 00:53:35,723 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:53:35,728 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:53:35,728 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:53:35,732 INFO ]: TraceAbstraction initialized [2018-06-22 00:53:35,733 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:53:34" (1/3) ... [2018-06-22 00:53:35,734 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271e359f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:53:35, skipping insertion in model container [2018-06-22 00:53:35,734 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:34" (2/3) ... [2018-06-22 00:53:35,734 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271e359f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:53:35, skipping insertion in model container [2018-06-22 00:53:35,734 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:53:35" (3/3) ... [2018-06-22 00:53:35,736 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:53:35,745 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:53:35,753 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:53:35,808 INFO ]: Using default assertion order modulation [2018-06-22 00:53:35,808 INFO ]: Interprodecural is true [2018-06-22 00:53:35,808 INFO ]: Hoare is false [2018-06-22 00:53:35,808 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:53:35,808 INFO ]: Backedges is TWOTRACK [2018-06-22 00:53:35,808 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:53:35,808 INFO ]: Difference is false [2018-06-22 00:53:35,808 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:53:35,808 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:53:35,833 INFO ]: Start isEmpty. Operand 146 states. [2018-06-22 00:53:35,851 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 00:53:35,851 INFO ]: Found error trace [2018-06-22 00:53:35,852 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:53:35,852 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:53:35,857 INFO ]: Analyzing trace with hash 1535183310, now seen corresponding path program 1 times [2018-06-22 00:53:35,859 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:53:35,860 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:53:35,895 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:35,895 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:53:35,895 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:35,932 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:53:36,067 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:53:36,069 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:53:36,069 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:53:36,070 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:53:36,080 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:53:36,081 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:53:36,083 INFO ]: Start difference. First operand 146 states. Second operand 4 states. [2018-06-22 00:53:39,327 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:53:39,327 INFO ]: Finished difference Result 285 states and 557 transitions. [2018-06-22 00:53:39,328 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:53:39,329 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 00:53:39,329 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:53:39,377 INFO ]: With dead ends: 285 [2018-06-22 00:53:39,377 INFO ]: Without dead ends: 283 [2018-06-22 00:53:39,379 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:53:39,403 INFO ]: Start minimizeSevpa. Operand 283 states. [2018-06-22 00:53:39,528 INFO ]: Finished minimizeSevpa. Reduced states from 283 to 283. [2018-06-22 00:53:39,529 INFO ]: Start removeUnreachable. Operand 283 states. [2018-06-22 00:53:39,554 INFO ]: Finished removeUnreachable. Reduced from 283 states to 283 states and 555 transitions. [2018-06-22 00:53:39,555 INFO ]: Start accepts. Automaton has 283 states and 555 transitions. Word has length 8 [2018-06-22 00:53:39,556 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:53:39,556 INFO ]: Abstraction has 283 states and 555 transitions. [2018-06-22 00:53:39,556 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:53:39,556 INFO ]: Start isEmpty. Operand 283 states and 555 transitions. [2018-06-22 00:53:39,563 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:53:39,563 INFO ]: Found error trace [2018-06-22 00:53:39,563 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:53:39,563 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:53:39,564 INFO ]: Analyzing trace with hash -792698877, now seen corresponding path program 1 times [2018-06-22 00:53:39,564 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:53:39,564 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:53:39,565 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:39,565 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:53:39,565 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:39,572 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:53:39,718 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:53:39,718 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:53:39,718 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:53:39,720 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:53:39,720 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:53:39,720 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:53:39,720 INFO ]: Start difference. First operand 283 states and 555 transitions. Second operand 4 states. [2018-06-22 00:53:41,943 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:53:41,943 INFO ]: Finished difference Result 423 states and 831 transitions. [2018-06-22 00:53:41,944 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:53:41,944 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:53:41,944 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:53:41,973 INFO ]: With dead ends: 423 [2018-06-22 00:53:41,973 INFO ]: Without dead ends: 423 [2018-06-22 00:53:41,974 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:53:41,974 INFO ]: Start minimizeSevpa. Operand 423 states. [2018-06-22 00:53:42,074 INFO ]: Finished minimizeSevpa. Reduced states from 423 to 423. [2018-06-22 00:53:42,074 INFO ]: Start removeUnreachable. Operand 423 states. [2018-06-22 00:53:42,094 INFO ]: Finished removeUnreachable. Reduced from 423 states to 423 states and 831 transitions. [2018-06-22 00:53:42,094 INFO ]: Start accepts. Automaton has 423 states and 831 transitions. Word has length 9 [2018-06-22 00:53:42,094 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:53:42,094 INFO ]: Abstraction has 423 states and 831 transitions. [2018-06-22 00:53:42,094 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:53:42,094 INFO ]: Start isEmpty. Operand 423 states and 831 transitions. [2018-06-22 00:53:42,096 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:53:42,096 INFO ]: Found error trace [2018-06-22 00:53:42,096 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:53:42,097 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:53:42,097 INFO ]: Analyzing trace with hash -855498305, now seen corresponding path program 1 times [2018-06-22 00:53:42,097 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:53:42,097 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:53:42,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:42,098 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:53:42,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:42,107 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:53:42,146 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:53:42,146 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:53:42,146 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:53:42,146 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:53:42,146 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:53:42,146 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:53:42,147 INFO ]: Start difference. First operand 423 states and 831 transitions. Second operand 4 states. [2018-06-22 00:53:43,412 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:53:43,412 INFO ]: Finished difference Result 563 states and 1107 transitions. [2018-06-22 00:53:43,412 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:53:43,412 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:53:43,413 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:53:43,463 INFO ]: With dead ends: 563 [2018-06-22 00:53:43,463 INFO ]: Without dead ends: 563 [2018-06-22 00:53:43,464 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:53:43,465 INFO ]: Start minimizeSevpa. Operand 563 states. [2018-06-22 00:53:43,556 INFO ]: Finished minimizeSevpa. Reduced states from 563 to 563. [2018-06-22 00:53:43,556 INFO ]: Start removeUnreachable. Operand 563 states. [2018-06-22 00:53:43,574 INFO ]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1107 transitions. [2018-06-22 00:53:43,574 INFO ]: Start accepts. Automaton has 563 states and 1107 transitions. Word has length 9 [2018-06-22 00:53:43,574 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:53:43,574 INFO ]: Abstraction has 563 states and 1107 transitions. [2018-06-22 00:53:43,574 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:53:43,574 INFO ]: Start isEmpty. Operand 563 states and 1107 transitions. [2018-06-22 00:53:43,611 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-22 00:53:43,611 INFO ]: Found error trace [2018-06-22 00:53:43,611 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:53:43,611 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:53:43,612 INFO ]: Analyzing trace with hash 702556654, now seen corresponding path program 1 times [2018-06-22 00:53:43,612 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:53:43,612 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:53:43,612 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:43,612 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:53:43,613 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:53:43,662 INFO ]: Conjunction of SSA is sat [2018-06-22 00:53:43,672 INFO ]: Counterexample might be feasible [2018-06-22 00:53:43,697 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:53:43 BoogieIcfgContainer [2018-06-22 00:53:43,698 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:53:43,698 INFO ]: Toolchain (without parser) took 9169.13 ms. Allocated memory was 308.8 MB in the beginning and 447.2 MB in the end (delta: 138.4 MB). Free memory was 255.2 MB in the beginning and 241.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 152.2 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:43,700 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 00:53:43,700 INFO ]: ChcToBoogie took 95.25 ms. Allocated memory is still 308.8 MB. Free memory was 255.2 MB in the beginning and 251.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:43,701 INFO ]: Boogie Preprocessor took 51.81 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 249.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:43,701 INFO ]: RCFGBuilder took 1040.54 ms. Allocated memory was 308.8 MB in the beginning and 327.2 MB in the end (delta: 18.4 MB). Free memory was 249.2 MB in the beginning and 292.9 MB in the end (delta: -43.7 MB). Peak memory consumption was 68.6 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:43,702 INFO ]: TraceAbstraction took 7969.83 ms. Allocated memory was 327.2 MB in the beginning and 447.2 MB in the end (delta: 120.1 MB). Free memory was 292.9 MB in the beginning and 241.4 MB in the end (delta: 51.5 MB). Peak memory consumption was 171.5 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:43,704 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 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 95.25 ms. Allocated memory is still 308.8 MB. Free memory was 255.2 MB in the beginning and 251.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 51.81 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 249.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1040.54 ms. Allocated memory was 308.8 MB in the beginning and 327.2 MB in the end (delta: 18.4 MB). Free memory was 249.2 MB in the beginning and 292.9 MB in the end (delta: -43.7 MB). Peak memory consumption was 68.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 7969.83 ms. Allocated memory was 327.2 MB in the beginning and 447.2 MB in the end (delta: 120.1 MB). Free memory was 292.9 MB in the beginning and 241.4 MB in the end (delta: 51.5 MB). Peak memory consumption was 171.5 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] COND FALSE !(gotoSwitch == 6) [L0] COND FALSE !(gotoSwitch == 4) [L0] COND FALSE !(gotoSwitch == 1) [L0] assume true; [L0] CALL call gotoProc(6, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int); [L0] gotoSwitch := gotoSwitch_in; [L0] COND TRUE gotoSwitch == 6 [L0] hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_8_Int, hhv_step_lturn_9_Int, hhv_step_lturn_10_Int, hhv_step_lturn_11_Int, hhv_step_lturn_12_Int := gpav_0_Int, gpav_1_Int, gpav_2_Int, gpav_3_Int, gpav_4_Int, gpav_5_Int, gpav_6_Int, gpav_7_Int, gpav_8_Int, gpav_9_Int, gpav_10_Int, gpav_11_Int, gpav_12_Int; [L0] assume true; [L0] hhv_step_lturn__bar_0_Int, hhv_step_lturn__bar_1_Int, hhv_step_lturn__bar_2_Int, hhv_step_lturn__bar_3_Int, hhv_step_lturn__bar_4_Int, hhv_step_lturn__bar_5_Int, hhv_step_lturn__bar_6_Int, hhv_step_lturn__bar_7_Int, hhv_step_lturn__bar_8_Int, hhv_step_lturn__bar_9_Int, hhv_step_lturn__bar_10_Int, hhv_step_lturn__bar_11_Int, hhv_step_lturn__bar_12_Int := hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_8_Int, hhv_step_lturn_9_Int, hhv_step_lturn_11_Int, hhv_step_lturn_10_Int, hhv_step_lturn_12_Int; [L0] assume ((((((0 + -1 * hhv_step_lturn__bar_6_Int + 1 * hhv_step_lturn__bar_9_Int + 0 >= 0 && 0 + 1 * hhv_step_lturn__bar_8_Int + -1 * hhv_step_lturn__bar_0_Int + -2 >= 0) && 0 + -1 * hhv_step_lturn__bar_7_Int + 1 * hhv_step_lturn__bar_8_Int + -2 >= 0) && 0 + 1 * hhv_step_lturn__bar_1_Int + -1 * hhv_step_lturn__bar_11_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_2_Int + 1 * hhv_step_lturn__bar_10_Int + 0 >= 0) && 0 + 1 * hhv_step_lturn__bar_2_Int + -1 * hhv_step_lturn__bar_10_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_1_Int + 1 * hhv_step_lturn__bar_11_Int + 0 >= 0) && 0 + 1 * hhv_step_lturn__bar_6_Int + -1 * hhv_step_lturn__bar_9_Int + 0 >= 0; [L0] RET call gotoProc(6, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int); [L0] hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int, hhv_combined_lturn_12_Int := hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_12_Int, hbv_False_11_Int, hbv_False_13_Int; [L0] havoc hbv_False_13_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_1_Int, hbv_False_2_Int, hbv_False_5_Int, hbv_False_7_Int, hbv_False_6_Int, hbv_False_8_Int, hbv_False_10_Int, hbv_False_9_Int; [L0] assume true; [L0] hhv_lturn_0_Int, hhv_lturn_1_Int, hhv_lturn_2_Int, hhv_lturn_3_Int, hhv_lturn_4_Int, hhv_lturn_5_Int, hhv_lturn_6_Int, hhv_lturn_7_Int, hhv_lturn_8_Int, hhv_lturn_9_Int, hhv_lturn_10_Int, hhv_lturn_11_Int, hhv_lturn_12_Int := hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int, hhv_combined_lturn_12_Int; [L0] assume (((((((0 + 1 * hhv_lturn_8_Int + -1 * hhv_lturn_0_Int + -2 >= 0 && 0 + 1 * hhv_lturn_1_Int + -1 * hhv_lturn_10_Int + 0 >= 0) && 0 + -1 * hhv_lturn_1_Int + 1 * hhv_lturn_10_Int + 0 >= 0) && 0 + -1 * hhv_lturn_6_Int + 1 * hhv_lturn_9_Int + 0 >= 0) && 0 + 1 * hhv_lturn_6_Int + -1 * hhv_lturn_9_Int + 0 >= 0) && 0 + 1 * hhv_lturn_8_Int + -1 * hhv_lturn_11_Int + -2 >= 0) && 0 + 1 * hhv_lturn_0_Int + -1 * hhv_lturn_11_Int + 0 >= 0) && 0 + -1 * hhv_lturn_7_Int + 1 * hhv_lturn_8_Int + -2 >= 0) && 0 + -1 * hhv_lturn_0_Int + 1 * hhv_lturn_11_Int + 0 >= 0; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 146 locations, 1 error locations. UNSAFE Result, 7.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 6.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 726 SDtfs, 586 SDslu, 226 SDs, 0 SdLazy, 1490 SolverSat, 1124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=563occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 439 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location-nr.52.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-53-43-722.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location-nr.52.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-53-43-722.csv Received shutdown request...