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/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 22:39:14,460 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 22:39:14,462 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 22:39:14,474 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 22:39:14,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 22:39:14,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 22:39:14,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 22:39:14,479 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 22:39:14,480 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 22:39:14,481 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 22:39:14,482 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 22:39:14,482 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 22:39:14,483 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 22:39:14,484 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 22:39:14,485 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 22:39:14,486 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 22:39:14,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 22:39:14,489 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 22:39:14,491 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 22:39:14,492 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 22:39:14,493 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 22:39:14,495 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 22:39:14,497 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 22:39:14,498 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 22:39:14,498 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 22:39:14,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 22:39:14,500 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 22:39:14,501 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 22:39:14,501 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 22:39:14,503 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 22:39:14,503 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 22:39:14,504 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-12 22:39:14,504 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 22:39:14,504 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 22:39:14,505 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 22:39:14,506 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 22:39:14,506 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 22:39:14,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 22:39:14,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 22:39:14,518 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 22:39:14,518 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 22:39:14,518 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 22:39:14,518 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 22:39:14,519 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 22:39:14,519 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 22:39:14,520 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 22:39:14,520 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 22:39:14,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 22:39:14,520 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 22:39:14,520 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 22:39:14,521 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 22:39:14,521 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 22:39:14,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 22:39:14,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 22:39:14,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 22:39:14,580 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 22:39:14,581 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 22:39:14,582 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl [2018-10-12 22:39:14,582 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl' [2018-10-12 22:39:14,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 22:39:14,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 22:39:14,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 22:39:14,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 22:39:14,635 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 22:39:14,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/1) ... [2018-10-12 22:39:14,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/1) ... [2018-10-12 22:39:14,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/1) ... [2018-10-12 22:39:14,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/1) ... [2018-10-12 22:39:14,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/1) ... [2018-10-12 22:39:14,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/1) ... [2018-10-12 22:39:14,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/1) ... [2018-10-12 22:39:14,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 22:39:14,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 22:39:14,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 22:39:14,682 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 22:39:14,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (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 22:39:14,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 22:39:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 22:39:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 22:39:15,421 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 22:39:15,422 INFO L202 PluginConnector]: Adding new model cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:39:15 BoogieIcfgContainer [2018-10-12 22:39:15,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 22:39:15,423 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 22:39:15,423 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 22:39:15,424 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 22:39:15,428 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:39:15" (1/1) ... [2018-10-12 22:39:15,438 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 22:39:15,439 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 22:39:15,476 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 22:39:15,536 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 22:39:15,553 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 22:39:15,633 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 22:39:21,095 INFO L315 AbstractInterpreter]: Visited 48 different actions 76 times. Merged at 13 different actions 26 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 22:39:21,100 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 22:39:21,104 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 22:39:21,120 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_4|) at (assume read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-12 22:39:21,215 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 22:39:21,216 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:39:21,216 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:39:21,217 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:39:21,219 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-12 22:39:21,220 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:39:21,220 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-12 22:39:21,220 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 22:39:21,220 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:39:21,221 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:39:21,221 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:39:21,221 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-12 22:39:21,221 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:39:21,221 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-12 22:39:21,221 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 22:39:21,223 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 22:39:21,247 INFO L202 PluginConnector]: Adding new model cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:39:21 BasicIcfg [2018-10-12 22:39:21,248 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 22:39:21,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 22:39:21,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 22:39:21,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 22:39:21,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:39:14" (1/3) ... [2018-10-12 22:39:21,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140dd021 and model type cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:39:21, skipping insertion in model container [2018-10-12 22:39:21,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:39:15" (2/3) ... [2018-10-12 22:39:21,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140dd021 and model type cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:39:21, skipping insertion in model container [2018-10-12 22:39:21,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:39:21" (3/3) ... [2018-10-12 22:39:21,257 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 22:39:21,270 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 22:39:21,279 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 22:39:21,298 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 22:39:21,324 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 22:39:21,325 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 22:39:21,326 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 22:39:21,326 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 22:39:21,326 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 22:39:21,326 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 22:39:21,328 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 22:39:21,328 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 22:39:21,328 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 22:39:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-10-12 22:39:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-12 22:39:21,361 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:39:21,362 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] [2018-10-12 22:39:21,364 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:39:21,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:39:21,371 INFO L82 PathProgramCache]: Analyzing trace with hash 123171028, now seen corresponding path program 1 times [2018-10-12 22:39:21,437 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:39:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:39:22,146 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 22:39:22,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 22:39:22,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-12 22:39:22,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-12 22:39:22,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-12 22:39:22,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-12 22:39:22,168 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 9 states. [2018-10-12 22:39:22,726 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-12 22:39:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:39:22,943 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-10-12 22:39:22,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-12 22:39:22,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-10-12 22:39:22,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:39:22,957 INFO L225 Difference]: With dead ends: 60 [2018-10-12 22:39:22,957 INFO L226 Difference]: Without dead ends: 60 [2018-10-12 22:39:22,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2018-10-12 22:39:23,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-10-12 22:39:23,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2018-10-12 22:39:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-12 22:39:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-10-12 22:39:23,070 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 36 [2018-10-12 22:39:23,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:39:23,071 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-10-12 22:39:23,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-12 22:39:23,071 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-10-12 22:39:23,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-12 22:39:23,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:39:23,073 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-12 22:39:23,073 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:39:23,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:39:23,074 INFO L82 PathProgramCache]: Analyzing trace with hash -526301946, now seen corresponding path program 1 times [2018-10-12 22:39:23,075 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:39:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:39:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-12 22:39:23,583 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:39:23,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-12 22:39:23,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-12 22:39:23,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-12 22:39:23,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-12 22:39:23,586 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 10 states. [2018-10-12 22:39:24,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:39:24,062 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-10-12 22:39:24,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-12 22:39:24,063 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2018-10-12 22:39:24,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:39:24,064 INFO L225 Difference]: With dead ends: 48 [2018-10-12 22:39:24,064 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 22:39:24,067 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-10-12 22:39:24,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 22:39:24,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 22:39:24,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 22:39:24,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 22:39:24,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-10-12 22:39:24,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:39:24,069 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 22:39:24,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-12 22:39:24,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 22:39:24,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 22:39:24,075 INFO L202 PluginConnector]: Adding new model cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:39:24 BasicIcfg [2018-10-12 22:39:24,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 22:39:24,077 INFO L168 Benchmark]: Toolchain (without parser) took 9443.36 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -983.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2018-10-12 22:39:24,078 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 22:39:24,078 INFO L168 Benchmark]: Boogie Preprocessor took 46.06 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 22:39:24,079 INFO L168 Benchmark]: RCFGBuilder took 740.74 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-12 22:39:24,081 INFO L168 Benchmark]: IcfgTransformer took 5825.19 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 440.9 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -348.5 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. [2018-10-12 22:39:24,083 INFO L168 Benchmark]: TraceAbstraction took 2825.91 ms. Allocated memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: 576.7 MB). Free memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: -656.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 22:39:24,087 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 0.19 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 46.06 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 740.74 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 5825.19 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 440.9 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -348.5 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2825.91 ms. Allocated memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: 576.7 MB). Free memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: -656.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 46 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 997 LocStat_NO_SUPPORTING_DISEQUALITIES : 121 LocStat_NO_DISJUNCTIONS : -92 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 48 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 48 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 48 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 5143.25 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 76 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 48 different actions 76 times. Merged at 13 different actions 26 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] : 4 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 : 2 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 2 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: 106]: 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, 2.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 314 SDslu, 220 SDs, 0 SdLazy, 230 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s 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, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 12665 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 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/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_22-39-24-117.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_22-39-24-117.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_22-39-24-117.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...