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/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181015-LoopsPathprograms/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 13:15:38,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 13:15:38,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 13:15:38,610 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 13:15:38,610 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 13:15:38,611 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 13:15:38,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 13:15:38,614 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 13:15:38,616 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 13:15:38,617 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 13:15:38,618 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 13:15:38,618 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 13:15:38,619 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 13:15:38,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 13:15:38,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 13:15:38,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 13:15:38,625 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 13:15:38,627 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 13:15:38,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 13:15:38,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 13:15:38,631 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 13:15:38,632 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 13:15:38,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-15 13:15:38,643 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-15 13:15:38,644 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-15 13:15:38,647 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-15 13:15:38,647 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-15 13:15:38,648 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 13:15:38,670 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 13:15:38,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 13:15:38,671 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 13:15:38,671 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 13:15:38,671 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 13:15:38,671 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 13:15:38,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 13:15:38,672 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 13:15:38,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 13:15:38,673 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 13:15:38,673 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 13:15:38,673 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 13:15:38,673 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 13:15:38,678 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 13:15:38,679 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 13:15:38,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 13:15:38,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 13:15:38,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 13:15:38,741 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 13:15:38,742 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 13:15:38,742 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl [2018-10-15 13:15:38,742 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl' [2018-10-15 13:15:38,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 13:15:38,814 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 13:15:38,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 13:15:38,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 13:15:38,815 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 13:15:38,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/1) ... [2018-10-15 13:15:38,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/1) ... [2018-10-15 13:15:38,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/1) ... [2018-10-15 13:15:38,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/1) ... [2018-10-15 13:15:38,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/1) ... [2018-10-15 13:15:38,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/1) ... [2018-10-15 13:15:38,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/1) ... [2018-10-15 13:15:38,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 13:15:38,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 13:15:38,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 13:15:38,877 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 13:15:38,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (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 13:15:38,957 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 13:15:38,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 13:15:38,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 13:15:39,442 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 13:15:39,443 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:39 BoogieIcfgContainer [2018-10-15 13:15:39,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 13:15:39,443 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 13:15:39,443 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 13:15:39,444 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 13:15:39,447 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:39" (1/1) ... [2018-10-15 13:15:39,455 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-15 13:15:39,455 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-15 13:15:39,486 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-15 13:15:39,528 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-15 13:15:39,543 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-15 13:15:39,610 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-15 13:15:43,351 INFO L315 AbstractInterpreter]: Visited 41 different actions 73 times. Merged at 15 different actions 30 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-15 13:15:43,354 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-15 13:15:43,357 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-15 13:15:43,410 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |v_#locv_ULTIMATE.start_write~int_old_#memory_int_2_1_1| |v_ULTIMATE.start_write~int_#ptr.base_2|) at (assume write~int_old_#memory_int[write~int_#ptr.base := write~int_old_#memory_int[write~int_#ptr.base][write~int_#ptr.offset := write~int_#value]] == #memory_int;) [2018-10-15 13:15:43,412 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-15 13:15:43,413 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-15 13:15:43,413 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-15 13:15:43,413 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 13:15:43,414 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 13:15:43,414 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-15 13:15:43,414 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-15 13:15:43,414 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-15 13:15:43,414 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-15 13:15:43,416 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-15 13:15:43,416 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 13:15:43,416 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 13:15:43,416 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-15 13:15:43,417 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-15 13:15:43,417 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-15 13:15:43,418 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-15 13:15:43,439 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:15:43 BasicIcfg [2018-10-15 13:15:43,439 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 13:15:43,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 13:15:43,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 13:15:43,445 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 13:15:43,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:15:38" (1/3) ... [2018-10-15 13:15:43,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d26ea0 and model type veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:43, skipping insertion in model container [2018-10-15 13:15:43,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:39" (2/3) ... [2018-10-15 13:15:43,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d26ea0 and model type veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:15:43, skipping insertion in model container [2018-10-15 13:15:43,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:15:43" (3/3) ... [2018-10-15 13:15:43,449 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-15 13:15:43,461 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 13:15:43,469 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 13:15:43,486 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 13:15:43,514 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 13:15:43,515 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 13:15:43,515 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 13:15:43,515 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 13:15:43,515 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 13:15:43,516 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 13:15:43,517 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 13:15:43,517 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 13:15:43,517 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 13:15:43,532 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-10-15 13:15:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-15 13:15:43,546 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:15:43,548 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] [2018-10-15 13:15:43,550 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:15:43,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:15:43,559 INFO L82 PathProgramCache]: Analyzing trace with hash 644559505, now seen corresponding path program 1 times [2018-10-15 13:15:43,625 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:15:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:15:44,565 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 13:15:44,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 13:15:44,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-15 13:15:44,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 13:15:44,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 13:15:44,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-10-15 13:15:44,588 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 11 states. [2018-10-15 13:15:45,229 WARN L179 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-10-15 13:15:45,546 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-10-15 13:15:45,797 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-10-15 13:15:46,331 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2018-10-15 13:15:46,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:15:46,553 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-10-15 13:15:46,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 13:15:46,556 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-10-15 13:15:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:15:46,567 INFO L225 Difference]: With dead ends: 56 [2018-10-15 13:15:46,567 INFO L226 Difference]: Without dead ends: 56 [2018-10-15 13:15:46,569 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-10-15 13:15:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-10-15 13:15:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2018-10-15 13:15:46,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-15 13:15:46,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-10-15 13:15:46,608 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 31 [2018-10-15 13:15:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:15:46,609 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-10-15 13:15:46,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 13:15:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-10-15 13:15:46,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-15 13:15:46,610 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:15:46,611 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-15 13:15:46,611 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:15:46,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:15:46,611 INFO L82 PathProgramCache]: Analyzing trace with hash 648510089, now seen corresponding path program 1 times [2018-10-15 13:15:46,613 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:15:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:15:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 13:15:47,005 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:15:47,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 13:15:47,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 13:15:47,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 13:15:47,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-10-15 13:15:47,007 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 14 states. [2018-10-15 13:15:47,711 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2018-10-15 13:15:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:15:48,264 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-10-15 13:15:48,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-15 13:15:48,265 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-10-15 13:15:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:15:48,267 INFO L225 Difference]: With dead ends: 68 [2018-10-15 13:15:48,267 INFO L226 Difference]: Without dead ends: 68 [2018-10-15 13:15:48,268 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2018-10-15 13:15:48,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-10-15 13:15:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2018-10-15 13:15:48,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-15 13:15:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-15 13:15:48,275 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 44 [2018-10-15 13:15:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:15:48,276 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-15 13:15:48,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 13:15:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-15 13:15:48,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-15 13:15:48,278 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:15:48,278 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-10-15 13:15:48,278 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:15:48,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:15:48,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1179523695, now seen corresponding path program 2 times [2018-10-15 13:15:48,280 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:15:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:15:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 13:15:48,605 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:15:48,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-15 13:15:48,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-15 13:15:48,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-15 13:15:48,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-10-15 13:15:48,607 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 13 states. [2018-10-15 13:15:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:15:49,030 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2018-10-15 13:15:49,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-15 13:15:49,031 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2018-10-15 13:15:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:15:49,033 INFO L225 Difference]: With dead ends: 51 [2018-10-15 13:15:49,033 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 13:15:49,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2018-10-15 13:15:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 13:15:49,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 13:15:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 13:15:49,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 13:15:49,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2018-10-15 13:15:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:15:49,035 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 13:15:49,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-15 13:15:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 13:15:49,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 13:15:49,040 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:15:49 BasicIcfg [2018-10-15 13:15:49,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 13:15:49,041 INFO L168 Benchmark]: Toolchain (without parser) took 10227.98 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -725.6 MB). Peak memory consumption was 296.7 MB. Max. memory is 7.1 GB. [2018-10-15 13:15:49,042 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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 13:15:49,043 INFO L168 Benchmark]: Boogie Preprocessor took 61.06 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 13:15:49,043 INFO L168 Benchmark]: RCFGBuilder took 566.90 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 13:15:49,044 INFO L168 Benchmark]: IcfgTransformer took 3996.17 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 252.7 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -263.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 13:15:49,045 INFO L168 Benchmark]: TraceAbstraction took 5599.08 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 769.7 MB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -483.4 MB). Peak memory consumption was 286.2 MB. Max. memory is 7.1 GB. [2018-10-15 13:15:49,050 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 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.06 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 566.90 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. * IcfgTransformer took 3996.17 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 252.7 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -263.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * TraceAbstraction took 5599.08 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 769.7 MB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -483.4 MB). Peak memory consumption was 286.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 39 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 745 LocStat_NO_SUPPORTING_DISEQUALITIES : 119 LocStat_NO_DISJUNCTIONS : -78 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 41 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 42 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 2259.51 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 83 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 41 different actions 73 times. Merged at 15 different actions 30 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 0 COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: 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, 41 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 669 SDslu, 528 SDs, 0 SdLazy, 321 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 28582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 12/31 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/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_13-15-49-066.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-15_13-15-49-066.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i_2.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-15_13-15-49-066.csv The toolchain threw an exception: class java.lang.RuntimeException: java.lang.IllegalAccessException: Class de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider can not access a member of class de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark with modifiers "private" RESULT: An exception occured during the execution of Ultimate: The toolchain threw an exception java.lang.RuntimeException: java.lang.IllegalAccessException: Class de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider can not access a member of class de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark with modifiers "private" at de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider.constructCsvProviderReflectively(SimpleCsvProvider.java:283) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark.createCsvProvider(AbsIntBenchmark.java:42) at de.uni_freiburg.informatik.ultimate.cli.CommandLineController.writeCsvLogs(CommandLineController.java:342) at de.uni_freiburg.informatik.ultimate.cli.CommandLineController.displayToolchainResults(CommandLineController.java:325) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:343) 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) Caused by: java.lang.IllegalAccessException: Class de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider can not access a member of class de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark with modifiers "private" at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:102) at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:296) at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:288) at java.lang.reflect.Field.get(Field.java:390) at de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider.constructCsvProviderReflectively(SimpleCsvProvider.java:275) ... 6 more Received shutdown request...