java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 09:52:56,986 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 09:52:56,988 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 09:52:57,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 09:52:57,005 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 09:52:57,006 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 09:52:57,007 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 09:52:57,009 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 09:52:57,011 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 09:52:57,012 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 09:52:57,013 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 09:52:57,013 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 09:52:57,014 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 09:52:57,015 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 09:52:57,016 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 09:52:57,018 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 09:52:57,019 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 09:52:57,021 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 09:52:57,022 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 09:52:57,025 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 09:52:57,028 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 09:52:57,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 09:52:57,034 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 09:52:57,034 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 09:52:57,034 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 09:52:57,035 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 09:52:57,036 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 09:52:57,038 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 09:52:57,038 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 09:52:57,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 09:52:57,040 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 09:52:57,043 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 09:52:57,043 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 09:52:57,043 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 09:52:57,044 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 09:52:57,047 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 09:52:57,047 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-10-04 09:52:57,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 09:52:57,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 09:52:57,076 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 09:52:57,076 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 09:52:57,077 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 09:52:57,077 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 09:52:57,077 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 09:52:57,077 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 09:52:57,078 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 09:52:57,079 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 09:52:57,079 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 09:52:57,079 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 09:52:57,079 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 09:52:57,080 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 09:52:57,080 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 09:52:57,080 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 09:52:57,080 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 09:52:57,080 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 09:52:57,081 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 09:52:57,081 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 09:52:57,081 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 09:52:57,081 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 09:52:57,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:52:57,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 09:52:57,082 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 09:52:57,082 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 09:52:57,082 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 09:52:57,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 09:52:57,082 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 09:52:57,083 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 09:52:57,083 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 09:52:57,127 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 09:52:57,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 09:52:57,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 09:52:57,145 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 09:52:57,146 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 09:52:57,147 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl [2018-10-04 09:52:57,147 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl' [2018-10-04 09:52:57,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 09:52:57,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 09:52:57,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 09:52:57,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 09:52:57,203 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 09:52:57,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,245 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 09:52:57,246 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 09:52:57,246 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 09:52:57,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 09:52:57,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 09:52:57,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 09:52:57,249 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 09:52:57,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... [2018-10-04 09:52:57,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 09:52:57,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 09:52:57,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 09:52:57,276 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 09:52:57,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:52:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-04 09:52:57,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-04 09:52:57,524 INFO L338 CfgBuilder]: Using library mode [2018-10-04 09:52:57,525 INFO L202 PluginConnector]: Adding new model codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:52:57 BoogieIcfgContainer [2018-10-04 09:52:57,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 09:52:57,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 09:52:57,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 09:52:57,530 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 09:52:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:52:57" (1/2) ... [2018-10-04 09:52:57,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e9684c and model type codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 09:52:57, skipping insertion in model container [2018-10-04 09:52:57,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:52:57" (2/2) ... [2018-10-04 09:52:57,534 INFO L112 eAbstractionObserver]: Analyzing ICFG codeblockAssertOrder01.bpl [2018-10-04 09:52:57,544 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 09:52:57,552 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 09:52:57,604 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 09:52:57,605 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 09:52:57,606 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 09:52:57,606 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 09:52:57,606 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 09:52:57,606 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 09:52:57,606 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 09:52:57,607 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 09:52:57,607 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 09:52:57,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-10-04 09:52:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 09:52:57,629 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:52:57,630 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-10-04 09:52:57,632 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:52:57,639 INFO L104 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 09:52:57,639 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2018-10-04 09:52:57,642 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:52:57,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:52:57,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:52:57,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:52:57,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:52:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:52:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:52:57,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:52:57,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 09:52:57,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:52:57,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:52:57,806 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 09:52:57,808 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-10-04 09:52:57,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:52:57,860 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 09:52:57,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:52:57,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-10-04 09:52:57,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:52:57,875 INFO L225 Difference]: With dead ends: 11 [2018-10-04 09:52:57,875 INFO L226 Difference]: Without dead ends: 5 [2018-10-04 09:52:57,878 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime 1 [2018-10-04 09:52:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-10-04 09:52:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-10-04 09:52:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-04 09:52:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-10-04 09:52:57,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-10-04 09:52:57,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:52:57,913 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-10-04 09:52:57,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:52:57,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-10-04 09:52:57,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 09:52:57,914 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:52:57,914 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 09:52:57,915 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:52:57,915 INFO L104 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 09:52:57,915 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times [2018-10-04 09:52:57,915 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:52:57,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:52:57,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:52:57,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:52:57,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:52:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:52:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:52:58,054 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:52:58,054 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 09:52:58,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:52:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:52:58,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:52:58,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:52:58,229 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:52:58,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-10-04 09:52:58,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 09:52:58,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 09:52:58,230 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 09:52:58,231 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-10-04 09:52:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:52:58,327 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-10-04 09:52:58,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 09:52:58,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-10-04 09:52:58,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:52:58,329 INFO L225 Difference]: With dead ends: 8 [2018-10-04 09:52:58,329 INFO L226 Difference]: Without dead ends: 6 [2018-10-04 09:52:58,331 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time 0.0s impTime 2 [2018-10-04 09:52:58,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-10-04 09:52:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-10-04 09:52:58,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-10-04 09:52:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 09:52:58,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-10-04 09:52:58,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:52:58,334 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-10-04 09:52:58,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 09:52:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 09:52:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 09:52:58,340 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:52:58,340 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-10-04 09:52:58,341 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:52:58,341 INFO L104 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 09:52:58,341 INFO L82 PathProgramCache]: Analyzing trace with hash 28752352, now seen corresponding path program 2 times [2018-10-04 09:52:58,341 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:52:58,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:52:58,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:52:58,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:52:58,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:52:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:52:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:52:58,459 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:52:58,459 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-10-04 09:52:58,469 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 09:52:58,484 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-04 09:52:58,484 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 09:52:58,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:52:58,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-04 09:52:58,519 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-04 09:52:58,560 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-04 09:52:58,561 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:18 [2018-10-04 09:52:58,782 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 09:52:58,783 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot provide value for term c_main_a of sort (Array Int Int) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getValue(Scriptor.java:183) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.getValue(WrapperScript.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.PredicateTrie.compare(PredicateTrie.java:184) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.PredicateTrie.unifyPredicate(PredicateTrie.java:110) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.BPredicateUnifier.getOrConstructPredicateInternal(BPredicateUnifier.java:228) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.BPredicateUnifier.getOrConstructPredicate(BPredicateUnifier.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-04 09:52:58,788 INFO L168 Benchmark]: Toolchain (without parser) took 1587.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-10-04 09:52:58,791 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 09:52:58,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.34 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 09:52:58,792 INFO L168 Benchmark]: Boogie Preprocessor took 25.98 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 09:52:58,793 INFO L168 Benchmark]: RCFGBuilder took 250.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 09:52:58,794 INFO L168 Benchmark]: TraceAbstraction took 1260.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-10-04 09:52:58,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.34 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.98 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 250.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1260.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Cannot provide value for term c_main_a of sort (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot provide value for term c_main_a of sort (Array Int Int): de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getValue(Scriptor.java:183) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/codeblockAssertOrder01.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_09-52-58-812.csv Received shutdown request...