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-b8f97f7-m [2018-10-10 16:30:16,647 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 16:30:16,649 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 16:30:16,661 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 16:30:16,661 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 16:30:16,662 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 16:30:16,663 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 16:30:16,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 16:30:16,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 16:30:16,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 16:30:16,669 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 16:30:16,669 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 16:30:16,670 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 16:30:16,671 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 16:30:16,672 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 16:30:16,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 16:30:16,674 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 16:30:16,676 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 16:30:16,678 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 16:30:16,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 16:30:16,682 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 16:30:16,686 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 16:30:16,689 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 16:30:16,689 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 16:30:16,690 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 16:30:16,691 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 16:30:16,695 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 16:30:16,698 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 16:30:16,699 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 16:30:16,700 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 16:30:16,700 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 16:30:16,702 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 16:30:16,702 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 16:30:16,703 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 16:30:16,706 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 16:30:16,707 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 16:30:16,707 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 16:30:16,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 16:30:16,729 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 16:30:16,730 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 16:30:16,731 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 16:30:16,731 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 16:30:16,731 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 16:30:16,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 16:30:16,732 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 16:30:16,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 16:30:16,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 16:30:16,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 16:30:16,733 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 16:30:16,733 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 16:30:16,735 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 16:30:16,735 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 16:30:16,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 16:30:16,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 16:30:16,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 16:30:16,832 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 16:30:16,832 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 16:30:16,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-10 16:30:16,833 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl' [2018-10-10 16:30:16,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 16:30:16,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-10 16:30:16,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 16:30:16,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 16:30:16,923 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 16:30:16,953 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 10.10 04:30:16" (1/1) ... [2018-10-10 16:30:16,955 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 10.10 04:30:16" (1/1) ... [2018-10-10 16:30:16,973 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 10.10 04:30:16" (1/1) ... [2018-10-10 16:30:16,974 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 10.10 04:30:16" (1/1) ... [2018-10-10 16:30:16,979 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 10.10 04:30:16" (1/1) ... [2018-10-10 16:30:16,983 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 10.10 04:30:16" (1/1) ... [2018-10-10 16:30:16,984 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 10.10 04:30:16" (1/1) ... [2018-10-10 16:30:16,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 16:30:16,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 16:30:16,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 16:30:16,991 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 16:30:16,992 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 10.10 04:30:16" (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 16:30:17,079 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 16:30:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 16:30:17,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 16:30:17,571 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 16:30:17,572 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 10.10 04:30:17 BoogieIcfgContainer [2018-10-10 16:30:17,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 16:30:17,573 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-10 16:30:17,573 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-10 16:30:17,574 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-10 16:30:17,578 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 10.10 04:30:17" (1/1) ... [2018-10-10 16:30:17,585 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-10 16:30:17,586 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-10 16:30:17,620 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-10 16:30:17,671 INFO L217 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-10 16:30:17,686 INFO L280 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-10 16:30:17,754 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-10 16:30:20,692 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. [2018-10-10 16:30:20,695 INFO L304 apSepIcfgTransformer]: finished equality analysis [2018-10-10 16:30:20,699 INFO L316 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-10 16:30:20,731 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]];) [2018-10-10 16:30:20,733 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-10 16:30:20,734 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:30:20,734 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:30:20,735 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-10 16:30:20,735 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:30:20,735 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:30:20,735 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-10 16:30:20,735 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-10 16:30:20,736 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:30:20,736 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:30:20,736 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-10 16:30:20,736 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:30:20,736 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:30:20,736 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-10 16:30:20,737 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-10 16:30:20,739 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-10 16:30:20,753 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 10.10 04:30:20 BasicIcfg [2018-10-10 16:30:20,753 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-10 16:30:20,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 16:30:20,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 16:30:20,758 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 16:30:20,758 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 10.10 04:30:16" (1/3) ... [2018-10-10 16:30:20,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d53e8 and model type count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 04:30:20, skipping insertion in model container [2018-10-10 16:30:20,760 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 10.10 04:30:17" (2/3) ... [2018-10-10 16:30:20,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d53e8 and model type count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:30:20, skipping insertion in model container [2018-10-10 16:30:20,760 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 10.10 04:30:20" (3/3) ... [2018-10-10 16:30:20,762 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-10 16:30:20,773 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 16:30:20,782 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 16:30:20,799 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 16:30:20,827 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 16:30:20,829 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 16:30:20,829 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 16:30:20,829 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 16:30:20,829 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 16:30:20,829 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 16:30:20,831 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 16:30:20,832 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 16:30:20,832 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 16:30:20,852 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-10-10 16:30:20,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-10 16:30:20,861 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:20,863 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] [2018-10-10 16:30:20,864 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:20,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:20,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1725729396, now seen corresponding path program 1 times [2018-10-10 16:30:20,933 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:21,196 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 16:30:21,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 16:30:21,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 16:30:21,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 16:30:21,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 16:30:21,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 16:30:21,219 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2018-10-10 16:30:21,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:21,318 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-10-10 16:30:21,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 16:30:21,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-10-10 16:30:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:21,330 INFO L225 Difference]: With dead ends: 63 [2018-10-10 16:30:21,330 INFO L226 Difference]: Without dead ends: 63 [2018-10-10 16:30:21,332 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 [2018-10-10 16:30:21,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-10 16:30:21,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2018-10-10 16:30:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-10 16:30:21,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-10-10 16:30:21,430 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 32 [2018-10-10 16:30:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:21,431 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-10-10 16:30:21,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 16:30:21,431 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-10-10 16:30:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-10 16:30:21,433 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:21,433 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] [2018-10-10 16:30:21,433 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:21,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:21,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1356116424, now seen corresponding path program 1 times [2018-10-10 16:30:21,435 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:21,772 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-10 16:30:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:30:22,058 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:30:22,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-10 16:30:22,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 16:30:22,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 16:30:22,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-10 16:30:22,061 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 9 states. [2018-10-10 16:30:22,490 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-10 16:30:22,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:22,689 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-10-10 16:30:22,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 16:30:22,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-10-10 16:30:22,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:22,695 INFO L225 Difference]: With dead ends: 61 [2018-10-10 16:30:22,695 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 16:30:22,696 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-10 16:30:22,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 16:30:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 16:30:22,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 16:30:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 16:30:22,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-10-10 16:30:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:22,697 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 16:30:22,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 16:30:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 16:30:22,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 16:30:22,701 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 10.10 04:30:22 BasicIcfg [2018-10-10 16:30:22,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 16:30:22,703 INFO L168 Benchmark]: Toolchain (without parser) took 5781.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 816.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2018-10-10 16:30:22,704 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. [2018-10-10 16:30:22,705 INFO L168 Benchmark]: Boogie Preprocessor took 67.47 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. [2018-10-10 16:30:22,705 INFO L168 Benchmark]: RCFGBuilder took 581.57 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. [2018-10-10 16:30:22,706 INFO L168 Benchmark]: IcfgTransformer took 3180.35 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 98.6 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 254.1 MB). Peak memory consumption was 352.7 MB. Max. memory is 7.1 GB. [2018-10-10 16:30:22,707 INFO L168 Benchmark]: TraceAbstraction took 1947.31 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 718.3 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:30:22,712 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 67.47 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 581.57 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 3180.35 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 98.6 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 254.1 MB). Peak memory consumption was 352.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1947.31 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 718.3 MB). Free memory was 1.1 GB in the beginning and 2.2 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) : 1721.11 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, 1.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 90 SDslu, 184 SDs, 0 SdLazy, 88 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s 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-0-2018-10-10_16-30-22-735.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-0-2018-10-10_16-30-22-735.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-0-2018-10-10_16-30-22-735.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...