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/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 22:59:41,737 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 22:59:41,740 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 22:59:41,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 22:59:41,752 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 22:59:41,753 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 22:59:41,755 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 22:59:41,756 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 22:59:41,758 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 22:59:41,759 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 22:59:41,760 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 22:59:41,760 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 22:59:41,761 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 22:59:41,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 22:59:41,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 22:59:41,764 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 22:59:41,765 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 22:59:41,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 22:59:41,769 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 22:59:41,770 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 22:59:41,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 22:59:41,776 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 22:59:41,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 22:59:41,800 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 22:59:41,819 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 22:59:41,819 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 22:59:41,820 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 22:59:41,820 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 22:59:41,820 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 22:59:41,820 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 22:59:41,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 22:59:41,821 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 22:59:41,822 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 22:59:41,822 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 22:59:41,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 22:59:41,822 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 22:59:41,822 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 22:59:41,823 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 22:59:41,823 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 22:59:41,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 22:59:41,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 22:59:41,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 22:59:41,884 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 22:59:41,885 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 22:59:41,886 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 22:59:41,886 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-12 22:59:41,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 22:59:41,982 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 22:59:41,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 22:59:41,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 22:59:41,983 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 22:59:42,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/1) ... [2018-10-12 22:59:42,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/1) ... [2018-10-12 22:59:42,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/1) ... [2018-10-12 22:59:42,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/1) ... [2018-10-12 22:59:42,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/1) ... [2018-10-12 22:59:42,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/1) ... [2018-10-12 22:59:42,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/1) ... [2018-10-12 22:59:42,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 22:59:42,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 22:59:42,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 22:59:42,062 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 22:59:42,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (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 [2018-10-12 22:59:42,141 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 22:59:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 22:59:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 22:59:42,753 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 22:59:42,754 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:59:42 BoogieIcfgContainer [2018-10-12 22:59:42,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 22:59:42,755 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 22:59:42,755 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 22:59:42,756 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 22:59:42,759 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:59:42" (1/1) ... [2018-10-12 22:59:42,767 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 22:59:42,767 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 22:59:42,807 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 22:59:42,863 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 22:59:42,879 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 22:59:42,953 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 23:00:56,744 INFO L315 AbstractInterpreter]: Visited 94 different actions 141 times. Merged at 31 different actions 45 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 23:00:56,746 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 23:00:56,750 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 23:00:56,924 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select (select |#loc_#memory_int_(Array-Int-(Array-Int-#locsort2))| |v_ULTIMATE.start_read~int_#ptr.base_13|) |v_ULTIMATE.start_read~int_#ptr.offset_9|) at (assume read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-12 23:00:57,359 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select (select |#loc_#memory_int_(Array-Int-(Array-Int-#locsort2))| |v_ULTIMATE.start_read~int_#ptr.base_7|) |v_ULTIMATE.start_read~int_#ptr.offset_5|) at (assume #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-12 23:00:57,361 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 23:00:57,361 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 23:00:57,362 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 23:00:57,362 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 23:00:57,362 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 23:00:57,362 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 23:00:57,362 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 23:00:57,362 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 23:00:57,363 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 23:00:57,363 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 23:00:57,363 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 23:00:57,363 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 23:00:57,363 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 23:00:57,364 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 23:00:57,364 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 23:00:57,367 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 23:00:57,394 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 11:00:57 BasicIcfg [2018-10-12 23:00:57,394 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 23:00:57,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 23:00:57,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 23:00:57,399 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 23:00:57,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:59:41" (1/3) ... [2018-10-12 23:00:57,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514fae31 and model type openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:00:57, skipping insertion in model container [2018-10-12 23:00:57,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:59:42" (2/3) ... [2018-10-12 23:00:57,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514fae31 and model type openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:00:57, skipping insertion in model container [2018-10-12 23:00:57,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 11:00:57" (3/3) ... [2018-10-12 23:00:57,403 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 23:00:57,413 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 23:00:57,423 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 23:00:57,441 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 23:00:57,470 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 23:00:57,470 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 23:00:57,471 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 23:00:57,471 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 23:00:57,471 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 23:00:57,471 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 23:00:57,471 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 23:00:57,472 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 23:00:57,472 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 23:00:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2018-10-12 23:00:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-12 23:00:57,493 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:00:57,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:00:57,496 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:00:57,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:00:57,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1228316066, now seen corresponding path program 1 times [2018-10-12 23:00:57,565 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:00:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:00:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:00:58,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 23:00:58,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-12 23:00:58,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-12 23:00:58,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-12 23:00:58,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-12 23:00:58,666 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 13 states. [2018-10-12 23:00:59,593 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-12 23:01:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:01:00,007 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-12 23:01:00,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-12 23:01:00,011 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2018-10-12 23:01:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:01:00,022 INFO L225 Difference]: With dead ends: 109 [2018-10-12 23:01:00,023 INFO L226 Difference]: Without dead ends: 109 [2018-10-12 23:01:00,025 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2018-10-12 23:01:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-12 23:01:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2018-10-12 23:01:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-10-12 23:01:00,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-10-12 23:01:00,068 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 67 [2018-10-12 23:01:00,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:01:00,069 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-10-12 23:01:00,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-12 23:01:00,070 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-10-12 23:01:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-12 23:01:00,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:01:00,073 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:01:00,074 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:01:00,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:01:00,074 INFO L82 PathProgramCache]: Analyzing trace with hash -867112460, now seen corresponding path program 1 times [2018-10-12 23:01:00,075 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:01:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:01:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:01:01,106 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 23:01:01,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-12 23:01:01,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-12 23:01:01,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-12 23:01:01,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-10-12 23:01:01,110 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 21 states. [2018-10-12 23:01:02,660 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-10-12 23:01:02,934 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-10-12 23:01:03,708 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-10-12 23:01:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:01:03,911 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-10-12 23:01:03,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-10-12 23:01:03,912 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-10-12 23:01:03,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:01:03,916 INFO L225 Difference]: With dead ends: 138 [2018-10-12 23:01:03,917 INFO L226 Difference]: Without dead ends: 138 [2018-10-12 23:01:03,918 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=449, Invalid=1713, Unknown=0, NotChecked=0, Total=2162 [2018-10-12 23:01:03,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-10-12 23:01:03,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 126. [2018-10-12 23:01:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-12 23:01:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-10-12 23:01:03,940 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 96 [2018-10-12 23:01:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:01:03,941 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-10-12 23:01:03,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-12 23:01:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-10-12 23:01:03,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-12 23:01:03,948 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:01:03,948 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:01:03,950 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:01:03,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:01:03,950 INFO L82 PathProgramCache]: Analyzing trace with hash 297342690, now seen corresponding path program 2 times [2018-10-12 23:01:03,951 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:01:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:01:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:01:05,787 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 23:01:05,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-12 23:01:05,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-12 23:01:05,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-12 23:01:05,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2018-10-12 23:01:05,789 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 32 states. [2018-10-12 23:01:08,576 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-12 23:01:08,873 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2018-10-12 23:01:09,684 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 23:01:10,023 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-12 23:01:10,378 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2018-10-12 23:01:10,869 WARN L178 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-12 23:01:11,228 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2018-10-12 23:01:11,585 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-10-12 23:01:11,883 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2018-10-12 23:01:12,105 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-12 23:01:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:01:13,294 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-10-12 23:01:13,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-12 23:01:13,295 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 125 [2018-10-12 23:01:13,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:01:13,297 INFO L225 Difference]: With dead ends: 167 [2018-10-12 23:01:13,297 INFO L226 Difference]: Without dead ends: 167 [2018-10-12 23:01:13,299 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=645, Invalid=4047, Unknown=0, NotChecked=0, Total=4692 [2018-10-12 23:01:13,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-10-12 23:01:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 155. [2018-10-12 23:01:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-12 23:01:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-10-12 23:01:13,311 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 125 [2018-10-12 23:01:13,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:01:13,311 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-10-12 23:01:13,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-12 23:01:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-10-12 23:01:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-12 23:01:13,314 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:01:13,314 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:01:13,314 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:01:13,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:01:13,315 INFO L82 PathProgramCache]: Analyzing trace with hash -212338508, now seen corresponding path program 3 times [2018-10-12 23:01:13,316 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:01:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:01:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-12 23:01:14,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 23:01:14,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-12 23:01:14,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-12 23:01:14,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-12 23:01:14,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=745, Unknown=0, NotChecked=0, Total=812 [2018-10-12 23:01:14,452 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 29 states. [2018-10-12 23:01:16,316 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2018-10-12 23:01:16,541 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2018-10-12 23:01:16,789 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2018-10-12 23:01:17,016 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2018-10-12 23:01:17,270 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2018-10-12 23:01:17,474 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-12 23:01:17,655 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-10-12 23:01:18,556 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2018-10-12 23:01:19,074 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2018-10-12 23:01:19,345 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2018-10-12 23:01:19,635 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2018-10-12 23:01:19,905 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-12 23:01:20,103 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-12 23:01:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:01:20,112 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-12 23:01:20,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-10-12 23:01:20,115 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 154 [2018-10-12 23:01:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:01:20,116 INFO L225 Difference]: With dead ends: 153 [2018-10-12 23:01:20,116 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 23:01:20,118 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=760, Invalid=3400, Unknown=0, NotChecked=0, Total=4160 [2018-10-12 23:01:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 23:01:20,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 23:01:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 23:01:20,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 23:01:20,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2018-10-12 23:01:20,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:01:20,119 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 23:01:20,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-12 23:01:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 23:01:20,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 23:01:20,123 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:01:20 BasicIcfg [2018-10-12 23:01:20,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 23:01:20,124 INFO L168 Benchmark]: Toolchain (without parser) took 98143.09 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: -2.2 GB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2018-10-12 23:01:20,125 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:01:20,125 INFO L168 Benchmark]: Boogie Preprocessor took 76.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:01:20,126 INFO L168 Benchmark]: RCFGBuilder took 692.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-12 23:01:20,127 INFO L168 Benchmark]: IcfgTransformer took 74639.50 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -957.4 MB). Peak memory consumption was 978.7 MB. Max. memory is 7.1 GB. [2018-10-12 23:01:20,128 INFO L168 Benchmark]: TraceAbstraction took 22727.78 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 308.8 MB). Free memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: -1.3 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:01:20,132 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 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 692.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * IcfgTransformer took 74639.50 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -957.4 MB). Peak memory consumption was 978.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22727.78 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 308.8 MB). Free memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: -1.3 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 : 92 LocStat_MAX_WEQGRAPH_SIZE : 12 LocStat_MAX_SIZEOF_WEQEDGELABEL : 8 LocStat_NO_SUPPORTING_EQUALITIES : 3212 LocStat_NO_SUPPORTING_DISEQUALITIES : 724 LocStat_NO_DISJUNCTIONS : -184 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 94 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 95 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 94 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 58575.71 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 143 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 94 different actions 141 times. Merged at 31 different actions 45 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] : 6 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 : 3 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 3 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: 167]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 1 error locations. SAFE Result, 22.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 17.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 269 SDtfs, 2348 SDslu, 3256 SDs, 0 SdLazy, 3192 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1711 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 757992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 26/146 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/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_23-01-20-148.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_23-01-20-148.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_23-01-20-148.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...