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/20181010-MemSafetyPathprograms/selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:43:48,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:43:48,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:43:48,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:43:48,981 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:43:48,982 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:43:48,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:43:48,986 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:43:48,987 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:43:48,988 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:43:48,989 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:43:48,989 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:43:48,992 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:43:48,995 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:43:48,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:43:48,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:43:49,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:43:49,004 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:43:49,012 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:43:49,017 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:43:49,018 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:43:49,023 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:43:49,025 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:43:49,044 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:43:49,054 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:43:49,054 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:43:49,055 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:43:49,055 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:43:49,056 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:43:49,056 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:43:49,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:43:49,057 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:43:49,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:43:49,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:43:49,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:43:49,057 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:43:49,058 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:43:49,059 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:43:49,059 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:43:49,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:43:49,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:43:49,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:43:49,150 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:43:49,150 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:43:49,151 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:43:49,151 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl' [2018-10-10 15:43:49,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:43:49,211 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:43:49,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:43:49,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:43:49,212 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:43:49,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/1) ... [2018-10-10 15:43:49,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/1) ... [2018-10-10 15:43:49,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/1) ... [2018-10-10 15:43:49,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/1) ... [2018-10-10 15:43:49,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/1) ... [2018-10-10 15:43:49,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/1) ... [2018-10-10 15:43:49,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/1) ... [2018-10-10 15:43:49,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:43:49,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:43:49,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:43:49,281 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:43:49,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (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 [2018-10-10 15:43:49,341 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:43:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:43:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:43:49,915 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:43:49,916 INFO L202 PluginConnector]: Adding new model selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:43:49 BoogieIcfgContainer [2018-10-10 15:43:49,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:43:49,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:43:49,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:43:49,921 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:43:49,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:49" (1/2) ... [2018-10-10 15:43:49,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690c263c and model type selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:43:49, skipping insertion in model container [2018-10-10 15:43:49,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:43:49" (2/2) ... [2018-10-10 15:43:49,924 INFO L112 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:43:49,934 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:43:49,943 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:43:49,960 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:43:49,991 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:43:49,992 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:43:49,993 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:43:49,993 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:43:49,993 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:43:49,993 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:43:49,993 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:43:49,994 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:43:49,994 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:43:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2018-10-10 15:43:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-10 15:43:50,038 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:50,039 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:43:50,041 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:50,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:50,049 INFO L82 PathProgramCache]: Analyzing trace with hash 627660528, now seen corresponding path program 1 times [2018-10-10 15:43:50,114 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:51,014 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-10-10 15:43:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:51,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:43:51,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-10 15:43:51,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 15:43:51,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 15:43:51,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-10 15:43:51,277 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 15 states. [2018-10-10 15:43:53,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:53,525 INFO L93 Difference]: Finished difference Result 174 states and 178 transitions. [2018-10-10 15:43:53,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-10 15:43:53,526 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-10-10 15:43:53,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:53,545 INFO L225 Difference]: With dead ends: 174 [2018-10-10 15:43:53,546 INFO L226 Difference]: Without dead ends: 174 [2018-10-10 15:43:53,548 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:43:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-10-10 15:43:53,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 124. [2018-10-10 15:43:53,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-10-10 15:43:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 126 transitions. [2018-10-10 15:43:53,603 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 126 transitions. Word has length 45 [2018-10-10 15:43:53,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:53,603 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 126 transitions. [2018-10-10 15:43:53,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 15:43:53,604 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 126 transitions. [2018-10-10 15:43:53,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-10 15:43:53,607 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:53,608 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:43:53,608 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:53,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:53,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1093097993, now seen corresponding path program 1 times [2018-10-10 15:43:53,610 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:53,713 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:53,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:43:53,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:43:53,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:43:53,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:43:53,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:43:53,718 INFO L87 Difference]: Start difference. First operand 124 states and 126 transitions. Second operand 4 states. [2018-10-10 15:43:53,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:53,810 INFO L93 Difference]: Finished difference Result 126 states and 128 transitions. [2018-10-10 15:43:53,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:43:53,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2018-10-10 15:43:53,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:53,812 INFO L225 Difference]: With dead ends: 126 [2018-10-10 15:43:53,813 INFO L226 Difference]: Without dead ends: 126 [2018-10-10 15:43:53,814 INFO L605 BasicCegarLoop]: 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 [2018-10-10 15:43:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-10-10 15:43:53,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-10-10 15:43:53,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-10 15:43:53,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 128 transitions. [2018-10-10 15:43:53,825 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 128 transitions. Word has length 90 [2018-10-10 15:43:53,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:53,826 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 128 transitions. [2018-10-10 15:43:53,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:43:53,826 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 128 transitions. [2018-10-10 15:43:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-10 15:43:53,828 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:53,829 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:43:53,829 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:53,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:53,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1289740813, now seen corresponding path program 1 times [2018-10-10 15:43:53,830 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:54,003 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:54,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-10 15:43:54,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:43:54,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:43:54,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:43:54,005 INFO L87 Difference]: Start difference. First operand 126 states and 128 transitions. Second operand 6 states. [2018-10-10 15:43:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:54,179 INFO L93 Difference]: Finished difference Result 257 states and 260 transitions. [2018-10-10 15:43:54,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:43:54,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-10-10 15:43:54,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:54,189 INFO L225 Difference]: With dead ends: 257 [2018-10-10 15:43:54,189 INFO L226 Difference]: Without dead ends: 218 [2018-10-10 15:43:54,190 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-10 15:43:54,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-10-10 15:43:54,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 172. [2018-10-10 15:43:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-10-10 15:43:54,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 175 transitions. [2018-10-10 15:43:54,219 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 175 transitions. Word has length 113 [2018-10-10 15:43:54,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:54,220 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 175 transitions. [2018-10-10 15:43:54,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:43:54,221 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 175 transitions. [2018-10-10 15:43:54,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-10 15:43:54,225 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:54,226 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:43:54,226 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:54,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:54,227 INFO L82 PathProgramCache]: Analyzing trace with hash -325620425, now seen corresponding path program 2 times [2018-10-10 15:43:54,228 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:54,716 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:54,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-10 15:43:54,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:43:54,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:43:54,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:43:54,718 INFO L87 Difference]: Start difference. First operand 172 states and 175 transitions. Second operand 12 states. [2018-10-10 15:43:56,873 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-10 15:43:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:56,882 INFO L93 Difference]: Finished difference Result 222 states and 224 transitions. [2018-10-10 15:43:56,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-10 15:43:56,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 136 [2018-10-10 15:43:56,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:56,883 INFO L225 Difference]: With dead ends: 222 [2018-10-10 15:43:56,884 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:43:56,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2018-10-10 15:43:56,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:43:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:43:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:43:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:43:56,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2018-10-10 15:43:56,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:56,886 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:43:56,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:43:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:43:56,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:43:56,892 INFO L202 PluginConnector]: Adding new model selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:43:56 BoogieIcfgContainer [2018-10-10 15:43:56,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:43:56,893 INFO L168 Benchmark]: Toolchain (without parser) took 7683.04 ms. Allocated memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 16.8 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -19.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:56,895 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:56,895 INFO L168 Benchmark]: Boogie Preprocessor took 67.90 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:56,896 INFO L168 Benchmark]: RCFGBuilder took 635.76 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:43:56,897 INFO L168 Benchmark]: TraceAbstraction took 6975.41 ms. Allocated memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 16.8 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -51.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:56,901 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 0.15 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.90 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 635.76 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6975.41 ms. Allocated memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 16.8 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -51.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 167]: 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, 97 locations, 1 error locations. SAFE Result, 6.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 338 SDtfs, 2000 SDslu, 1081 SDs, 0 SdLazy, 946 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 96 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 258432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 34/83 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/selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-43-56-911.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/selectionsort-alloca_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-43-56-911.csv Received shutdown request...