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/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 15:09:30,839 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 15:09:30,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 15:09:30,853 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 15:09:30,853 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 15:09:30,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 15:09:30,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 15:09:30,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 15:09:30,860 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 15:09:30,861 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 15:09:30,861 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 15:09:30,862 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 15:09:30,863 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 15:09:30,864 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 15:09:30,865 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 15:09:30,865 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 15:09:30,866 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 15:09:30,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 15:09:30,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 15:09:30,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 15:09:30,878 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 15:09:30,879 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 15:09:30,884 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-15 15:09:30,885 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-15 15:09:30,885 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-15 15:09:30,886 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-15 15:09:30,887 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-15 15:09:30,888 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-15 15:09:30,888 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-15 15:09:30,892 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-15 15:09:30,892 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-15 15:09:30,893 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-15 15:09:30,896 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-15 15:09:30,911 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 15:09:30,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 15:09:30,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 15:09:30,912 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 15:09:30,913 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 15:09:30,913 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 15:09:30,913 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 15:09:30,914 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 15:09:30,914 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 15:09:30,914 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 15:09:30,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 15:09:30,914 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 15:09:30,915 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 15:09:30,916 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 15:09:30,916 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 15:09:30,958 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 15:09:30,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 15:09:30,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 15:09:30,979 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 15:09:30,980 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 15:09:30,980 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl [2018-10-15 15:09:30,981 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl' [2018-10-15 15:09:31,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 15:09:31,055 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 15:09:31,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 15:09:31,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 15:09:31,056 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 15:09:31,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/1) ... [2018-10-15 15:09:31,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/1) ... [2018-10-15 15:09:31,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/1) ... [2018-10-15 15:09:31,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/1) ... [2018-10-15 15:09:31,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/1) ... [2018-10-15 15:09:31,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/1) ... [2018-10-15 15:09:31,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/1) ... [2018-10-15 15:09:31,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 15:09:31,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 15:09:31,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 15:09:31,099 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 15:09:31,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (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: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 [2018-10-15 15:09:31,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 15:09:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 15:09:31,459 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 15:09:31,459 INFO L202 PluginConnector]: Adding new model sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:31 BoogieIcfgContainer [2018-10-15 15:09:31,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 15:09:31,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 15:09:31,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 15:09:31,473 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 15:09:31,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:09:31" (1/2) ... [2018-10-15 15:09:31,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6e315b and model type sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:09:31, skipping insertion in model container [2018-10-15 15:09:31,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:31" (2/2) ... [2018-10-15 15:09:31,482 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i_3.bpl [2018-10-15 15:09:31,492 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 15:09:31,504 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 15:09:31,522 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 15:09:31,552 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 15:09:31,553 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 15:09:31,553 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 15:09:31,553 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 15:09:31,554 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 15:09:31,554 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 15:09:31,554 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 15:09:31,554 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 15:09:31,555 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 15:09:31,571 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-10-15 15:09:31,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-15 15:09:31,581 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:09:31,582 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:09:31,583 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:09:31,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:09:31,590 INFO L82 PathProgramCache]: Analyzing trace with hash 2012875127, now seen corresponding path program 1 times [2018-10-15 15:09:31,655 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:09:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:09:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:09:31,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:09:31,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 15:09:31,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 15:09:31,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 15:09:31,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 15:09:31,928 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2018-10-15 15:09:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:09:32,232 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-10-15 15:09:32,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 15:09:32,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-10-15 15:09:32,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:09:32,244 INFO L225 Difference]: With dead ends: 33 [2018-10-15 15:09:32,244 INFO L226 Difference]: Without dead ends: 29 [2018-10-15 15:09:32,247 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-15 15:09:32,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-15 15:09:32,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-10-15 15:09:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-15 15:09:32,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-10-15 15:09:32,282 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 16 [2018-10-15 15:09:32,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:09:32,283 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-10-15 15:09:32,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 15:09:32,283 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-10-15 15:09:32,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-15 15:09:32,284 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:09:32,284 INFO L375 BasicCegarLoop]: 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, 1] [2018-10-15 15:09:32,285 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:09:32,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:09:32,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1547157734, now seen corresponding path program 1 times [2018-10-15 15:09:32,286 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:09:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:09:32,685 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-15 15:09:32,929 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-15 15:09:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:09:33,319 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:09:33,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-15 15:09:33,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 15:09:33,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 15:09:33,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-15 15:09:33,323 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2018-10-15 15:09:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:09:34,010 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-10-15 15:09:34,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 15:09:34,012 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-10-15 15:09:34,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:09:34,014 INFO L225 Difference]: With dead ends: 43 [2018-10-15 15:09:34,015 INFO L226 Difference]: Without dead ends: 39 [2018-10-15 15:09:34,017 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-10-15 15:09:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-15 15:09:34,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-10-15 15:09:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-15 15:09:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-10-15 15:09:34,022 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 26 [2018-10-15 15:09:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:09:34,025 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-10-15 15:09:34,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 15:09:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-10-15 15:09:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-15 15:09:34,027 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:09:34,027 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:09:34,027 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:09:34,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:09:34,028 INFO L82 PathProgramCache]: Analyzing trace with hash -484034155, now seen corresponding path program 2 times [2018-10-15 15:09:34,029 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:09:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:09:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-15 15:09:34,481 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:09:34,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-15 15:09:34,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-15 15:09:34,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-15 15:09:34,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-10-15 15:09:34,483 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 13 states. [2018-10-15 15:09:34,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:09:34,980 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-10-15 15:09:34,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-15 15:09:34,981 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2018-10-15 15:09:34,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:09:34,982 INFO L225 Difference]: With dead ends: 34 [2018-10-15 15:09:34,982 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 15:09:34,983 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2018-10-15 15:09:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 15:09:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 15:09:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 15:09:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 15:09:34,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-10-15 15:09:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:09:34,985 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 15:09:34,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-15 15:09:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 15:09:34,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 15:09:34,991 INFO L202 PluginConnector]: Adding new model sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:09:34 BoogieIcfgContainer [2018-10-15 15:09:34,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 15:09:34,992 INFO L168 Benchmark]: Toolchain (without parser) took 3938.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2018-10-15 15:09:34,994 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 15:09:34,994 INFO L168 Benchmark]: Boogie Preprocessor took 42.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 15:09:34,995 INFO L168 Benchmark]: RCFGBuilder took 361.37 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 15:09:34,996 INFO L168 Benchmark]: TraceAbstraction took 3531.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-15 15:09:35,000 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 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 361.37 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3531.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 55 SDslu, 274 SDs, 0 SdLazy, 208 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=2, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 19205 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_bug02.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_15-09-35-013.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_bug02.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_15-09-35-013.csv Received shutdown request...