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/20181010-MemSafetyPathprograms/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 18:15:43,446 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 18:15:43,450 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 18:15:43,468 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 18:15:43,468 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 18:15:43,469 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 18:15:43,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 18:15:43,473 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 18:15:43,478 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 18:15:43,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 18:15:43,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 18:15:43,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 18:15:43,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 18:15:43,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 18:15:43,489 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 18:15:43,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 18:15:43,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 18:15:43,495 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 18:15:43,502 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 18:15:43,503 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 18:15:43,506 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 18:15:43,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 18:15:43,513 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 18:15:43,513 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 18:15:43,513 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 18:15:43,514 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 18:15:43,515 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 18:15:43,517 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 18:15:43,519 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 18:15:43,520 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 18:15:43,520 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 18:15:43,521 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 18:15:43,526 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 18:15:43,539 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 18:15:43,540 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 18:15:43,541 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 18:15:43,541 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 18:15:43,541 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 18:15:43,541 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 18:15:43,542 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 18:15:43,542 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 18:15:43,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 18:15:43,543 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 18:15:43,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 18:15:43,543 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 18:15:43,544 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 18:15:43,544 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 18:15:43,545 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 18:15:43,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 18:15:43,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 18:15:43,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 18:15:43,617 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 18:15:43,618 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 18:15:43,619 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-14 18:15:43,619 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl' [2018-10-14 18:15:43,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 18:15:43,682 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-14 18:15:43,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 18:15:43,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 18:15:43,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 18:15:43,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/1) ... [2018-10-14 18:15:43,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/1) ... [2018-10-14 18:15:43,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/1) ... [2018-10-14 18:15:43,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/1) ... [2018-10-14 18:15:43,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/1) ... [2018-10-14 18:15:43,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/1) ... [2018-10-14 18:15:43,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/1) ... [2018-10-14 18:15:43,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 18:15:43,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 18:15:43,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 18:15:43,736 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 18:15:43,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (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 [2018-10-14 18:15:43,810 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 18:15:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 18:15:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 18:15:44,378 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 18:15:44,379 INFO L202 PluginConnector]: Adding new model count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:15:44 BoogieIcfgContainer [2018-10-14 18:15:44,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 18:15:44,380 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-14 18:15:44,380 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-14 18:15:44,381 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-14 18:15:44,383 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:15:44" (1/1) ... [2018-10-14 18:15:44,392 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-14 18:15:44,392 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-14 18:15:44,429 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-14 18:15:44,476 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-14 18:15:44,499 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-14 18:15:44,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-14 18:15:47,517 INFO L315 AbstractInterpreter]: Visited 50 different actions 98 times. Merged at 23 different actions 46 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-14 18:15:47,519 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-14 18:15:47,523 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-14 18:15:47,555 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_6|) at (assume #memory_int == 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]];) [2018-10-14 18:15:47,558 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-14 18:15:47,559 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:15:47,559 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:15:47,559 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:15:47,559 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:15:47,559 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:15:47,560 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-14 18:15:47,560 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-14 18:15:47,560 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:15:47,560 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:15:47,560 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:15:47,561 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:15:47,561 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:15:47,561 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-14 18:15:47,561 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-14 18:15:47,563 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-14 18:15:47,577 INFO L202 PluginConnector]: Adding new model count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:15:47 BasicIcfg [2018-10-14 18:15:47,577 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-14 18:15:47,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 18:15:47,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 18:15:47,582 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 18:15:47,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:43" (1/3) ... [2018-10-14 18:15:47,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eabbba and model type count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:15:47, skipping insertion in model container [2018-10-14 18:15:47,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:15:44" (2/3) ... [2018-10-14 18:15:47,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eabbba and model type count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:15:47, skipping insertion in model container [2018-10-14 18:15:47,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:15:47" (3/3) ... [2018-10-14 18:15:47,585 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-14 18:15:47,596 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 18:15:47,604 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 18:15:47,622 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 18:15:47,648 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 18:15:47,649 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 18:15:47,649 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 18:15:47,649 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 18:15:47,649 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 18:15:47,650 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 18:15:47,650 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 18:15:47,650 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 18:15:47,650 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 18:15:47,664 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-10-14 18:15:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-14 18:15:47,672 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:15:47,673 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] [2018-10-14 18:15:47,674 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:15:47,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:15:47,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1725729396, now seen corresponding path program 1 times [2018-10-14 18:15:47,746 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:15:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:15:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:15:48,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:15:48,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 18:15:48,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 18:15:48,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 18:15:48,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 18:15:48,096 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2018-10-14 18:15:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:15:48,205 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-10-14 18:15:48,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 18:15:48,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-10-14 18:15:48,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:15:48,218 INFO L225 Difference]: With dead ends: 63 [2018-10-14 18:15:48,218 INFO L226 Difference]: Without dead ends: 63 [2018-10-14 18:15:48,220 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 18:15:48,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-14 18:15:48,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2018-10-14 18:15:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-14 18:15:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-10-14 18:15:48,316 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 32 [2018-10-14 18:15:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:15:48,317 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-10-14 18:15:48,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 18:15:48,317 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-10-14 18:15:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-14 18:15:48,319 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:15:48,319 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, 1, 1, 1] [2018-10-14 18:15:48,319 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:15:48,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:15:48,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1356116424, now seen corresponding path program 1 times [2018-10-14 18:15:48,321 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:15:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:15:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:15:48,896 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:15:48,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-14 18:15:48,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 18:15:48,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 18:15:48,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-14 18:15:48,899 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 9 states. [2018-10-14 18:15:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:15:49,243 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-10-14 18:15:49,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-14 18:15:49,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-10-14 18:15:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:15:49,245 INFO L225 Difference]: With dead ends: 61 [2018-10-14 18:15:49,245 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 18:15:49,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-14 18:15:49,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 18:15:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 18:15:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 18:15:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 18:15:49,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-10-14 18:15:49,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:15:49,248 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 18:15:49,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 18:15:49,248 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 18:15:49,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 18:15:49,252 INFO L202 PluginConnector]: Adding new model count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:15:49 BasicIcfg [2018-10-14 18:15:49,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 18:15:49,253 INFO L168 Benchmark]: Toolchain (without parser) took 5572.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 814.2 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -823.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:15:49,254 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-14 18:15:49,255 INFO L168 Benchmark]: Boogie Preprocessor took 52.13 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. [2018-10-14 18:15:49,255 INFO L168 Benchmark]: RCFGBuilder took 643.96 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. [2018-10-14 18:15:49,256 INFO L168 Benchmark]: IcfgTransformer took 3197.83 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 47.2 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 297.6 MB). Peak memory consumption was 344.8 MB. Max. memory is 7.1 GB. [2018-10-14 18:15:49,257 INFO L168 Benchmark]: TraceAbstraction took 1673.90 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 767.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:15:49,262 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 0.20 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 52.13 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 643.96 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 3197.83 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 47.2 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 297.6 MB). Peak memory consumption was 344.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1673.90 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 767.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 48 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 729 LocStat_NO_SUPPORTING_DISEQUALITIES : 64 LocStat_NO_DISJUNCTIONS : -96 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 50 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 45 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 51 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 1713.99 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 100 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 50 different actions 98 times. Merged at 23 different actions 46 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: 103]: 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, 50 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 90 SDslu, 184 SDs, 0 SdLazy, 88 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, 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, 2 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 15865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-14_18-15-49-279.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-14_18-15-49-279.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-14_18-15-49-279.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...