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_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 18:34:44,999 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 18:34:45,001 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 18:34:45,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 18:34:45,019 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 18:34:45,021 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 18:34:45,022 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 18:34:45,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 18:34:45,026 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 18:34:45,026 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 18:34:45,027 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 18:34:45,028 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 18:34:45,029 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 18:34:45,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 18:34:45,031 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 18:34:45,032 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 18:34:45,033 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 18:34:45,034 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 18:34:45,036 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 18:34:45,038 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 18:34:45,039 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 18:34:45,041 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 18:34:45,043 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 18:34:45,044 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 18:34:45,044 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 18:34:45,045 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 18:34:45,046 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 18:34:45,047 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 18:34:45,048 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 18:34:45,049 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 18:34:45,049 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 18:34:45,050 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 18:34:45,050 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 18:34:45,050 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 18:34:45,051 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 18:34:45,052 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 18:34:45,052 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 18:34:45,071 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 18:34:45,071 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 18:34:45,073 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 18:34:45,073 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 18:34:45,073 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 18:34:45,073 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 18:34:45,074 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 18:34:45,074 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 18:34:45,076 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 18:34:45,077 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 18:34:45,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 18:34:45,077 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 18:34:45,077 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 18:34:45,079 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 18:34:45,079 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 18:34:45,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 18:34:45,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 18:34:45,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 18:34:45,168 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 18:34:45,168 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 18:34:45,169 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl [2018-10-14 18:34:45,170 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl' [2018-10-14 18:34:45,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 18:34:45,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-14 18:34:45,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 18:34:45,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 18:34:45,249 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 18:34:45,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 18:34:45,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 18:34:45,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 18:34:45,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 18:34:45,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-14 18:34:45,379 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 18:34:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 18:34:45,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 18:34:45,940 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 18:34:45,941 INFO L202 PluginConnector]: Adding new model openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:34:45 BoogieIcfgContainer [2018-10-14 18:34:45,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 18:34:45,942 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-14 18:34:45,942 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-14 18:34:45,944 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-14 18:34:45,947 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:34:45" (1/1) ... [2018-10-14 18:34:45,954 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-14 18:34:45,954 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-14 18:34:45,987 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-14 18:34:46,031 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-14 18:34:46,045 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-14 18:34:46,111 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-14 18:34:51,289 INFO L315 AbstractInterpreter]: Visited 51 different actions 76 times. Merged at 15 different actions 23 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-14 18:34:51,293 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-14 18:34:51,298 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-14 18:34:51,311 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 read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-14 18:34:51,387 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-14 18:34:51,388 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:34:51,388 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:34:51,388 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:34:51,389 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:34:51,389 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:34:51,389 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:34:51,389 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:34:51,390 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:34:51,390 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:34:51,390 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:34:51,390 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:34:51,391 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:34:51,391 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:34:51,392 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:34:51,393 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-14 18:34:51,427 INFO L202 PluginConnector]: Adding new model openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:34:51 BasicIcfg [2018-10-14 18:34:51,428 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-14 18:34:51,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 18:34:51,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 18:34:51,435 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 18:34:51,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:34:45" (1/3) ... [2018-10-14 18:34:51,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a136091 and model type openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:34:51, skipping insertion in model container [2018-10-14 18:34:51,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:34:45" (2/3) ... [2018-10-14 18:34:51,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a136091 and model type openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:34:51, skipping insertion in model container [2018-10-14 18:34:51,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:34:51" (3/3) ... [2018-10-14 18:34:51,440 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-14 18:34:51,452 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 18:34:51,460 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 18:34:51,480 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 18:34:51,507 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 18:34:51,509 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 18:34:51,509 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 18:34:51,510 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 18:34:51,510 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 18:34:51,510 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 18:34:51,511 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 18:34:51,511 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 18:34:51,511 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 18:34:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-10-14 18:34:51,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-14 18:34:51,541 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:34:51,543 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] [2018-10-14 18:34:51,544 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:34:51,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:34:51,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1881481045, now seen corresponding path program 1 times [2018-10-14 18:34:51,623 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:34:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:34:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:34:53,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:34:53,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 18:34:53,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 18:34:53,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 18:34:53,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-14 18:34:53,325 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 12 states. [2018-10-14 18:34:54,485 WARN L179 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-10-14 18:34:54,655 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-10-14 18:34:54,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:34:54,768 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-10-14 18:34:54,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-14 18:34:54,770 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2018-10-14 18:34:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:34:54,783 INFO L225 Difference]: With dead ends: 63 [2018-10-14 18:34:54,783 INFO L226 Difference]: Without dead ends: 63 [2018-10-14 18:34:54,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2018-10-14 18:34:54,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-14 18:34:54,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2018-10-14 18:34:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-14 18:34:54,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-10-14 18:34:54,825 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 38 [2018-10-14 18:34:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:34:54,826 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-10-14 18:34:54,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 18:34:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-10-14 18:34:54,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-14 18:34:54,828 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:34:54,828 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 18:34:54,828 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:34:54,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:34:54,829 INFO L82 PathProgramCache]: Analyzing trace with hash -139230693, now seen corresponding path program 1 times [2018-10-14 18:34:54,830 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:34:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:34:55,316 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-14 18:34:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:34:55,800 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:34:55,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-10-14 18:34:55,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-14 18:34:55,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-14 18:34:55,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2018-10-14 18:34:55,803 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 19 states. [2018-10-14 18:34:57,084 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-10-14 18:34:57,640 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-10-14 18:34:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:34:57,922 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-10-14 18:34:57,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-14 18:34:57,922 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2018-10-14 18:34:57,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:34:57,925 INFO L225 Difference]: With dead ends: 76 [2018-10-14 18:34:57,925 INFO L226 Difference]: Without dead ends: 76 [2018-10-14 18:34:57,926 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2018-10-14 18:34:57,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-14 18:34:57,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 65. [2018-10-14 18:34:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-10-14 18:34:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2018-10-14 18:34:57,934 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 51 [2018-10-14 18:34:57,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:34:57,935 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2018-10-14 18:34:57,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-14 18:34:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-10-14 18:34:57,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-14 18:34:57,937 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:34:57,938 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-10-14 18:34:57,938 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:34:57,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:34:57,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1067340053, now seen corresponding path program 2 times [2018-10-14 18:34:57,939 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:34:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:34:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:34:58,682 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:34:58,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-14 18:34:58,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-14 18:34:58,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-14 18:34:58,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2018-10-14 18:34:58,684 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 20 states. [2018-10-14 18:34:59,565 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-10-14 18:34:59,922 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-14 18:35:00,240 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2018-10-14 18:35:00,613 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2018-10-14 18:35:00,973 WARN L179 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2018-10-14 18:35:01,427 WARN L179 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2018-10-14 18:35:01,673 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2018-10-14 18:35:01,905 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-14 18:35:02,082 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-14 18:35:02,363 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-14 18:35:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:35:02,411 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-10-14 18:35:02,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-14 18:35:02,416 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 64 [2018-10-14 18:35:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:35:02,418 INFO L225 Difference]: With dead ends: 89 [2018-10-14 18:35:02,418 INFO L226 Difference]: Without dead ends: 89 [2018-10-14 18:35:02,419 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2018-10-14 18:35:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-10-14 18:35:02,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2018-10-14 18:35:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-10-14 18:35:02,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-10-14 18:35:02,427 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 64 [2018-10-14 18:35:02,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:35:02,428 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-10-14 18:35:02,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-14 18:35:02,428 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-10-14 18:35:02,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-14 18:35:02,430 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:35:02,431 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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] [2018-10-14 18:35:02,431 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:35:02,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:35:02,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1362548645, now seen corresponding path program 3 times [2018-10-14 18:35:02,432 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:35:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:35:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:35:03,085 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:35:03,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-14 18:35:03,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-14 18:35:03,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-14 18:35:03,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2018-10-14 18:35:03,086 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 21 states. [2018-10-14 18:35:04,590 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2018-10-14 18:35:04,889 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2018-10-14 18:35:05,131 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2018-10-14 18:35:05,477 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-14 18:35:05,764 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2018-10-14 18:35:05,940 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-14 18:35:06,165 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2018-10-14 18:35:06,536 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-14 18:35:06,838 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2018-10-14 18:35:07,074 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2018-10-14 18:35:07,285 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-14 18:35:07,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:35:07,292 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-10-14 18:35:07,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-14 18:35:07,293 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 77 [2018-10-14 18:35:07,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:35:07,294 INFO L225 Difference]: With dead ends: 87 [2018-10-14 18:35:07,294 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 18:35:07,296 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=501, Invalid=1221, Unknown=0, NotChecked=0, Total=1722 [2018-10-14 18:35:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 18:35:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 18:35:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 18:35:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 18:35:07,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2018-10-14 18:35:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:35:07,297 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 18:35:07,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-14 18:35:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 18:35:07,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 18:35:07,301 INFO L202 PluginConnector]: Adding new model openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:35:07 BasicIcfg [2018-10-14 18:35:07,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 18:35:07,302 INFO L168 Benchmark]: Toolchain (without parser) took 22055.59 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -703.2 MB). Peak memory consumption was 483.3 MB. Max. memory is 7.1 GB. [2018-10-14 18:35:07,303 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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. [2018-10-14 18:35:07,304 INFO L168 Benchmark]: Boogie Preprocessor took 58.73 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. [2018-10-14 18:35:07,305 INFO L168 Benchmark]: RCFGBuilder took 633.81 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. [2018-10-14 18:35:07,305 INFO L168 Benchmark]: IcfgTransformer took 5485.58 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 212.3 MB). Free memory was 1.4 GB in the beginning and 951.5 MB in the end (delta: 496.1 MB). Peak memory consumption was 708.5 MB. Max. memory is 7.1 GB. [2018-10-14 18:35:07,306 INFO L168 Benchmark]: TraceAbstraction took 15872.45 ms. Allocated memory was 1.8 GB in the beginning and 2.7 GB in the end (delta: 974.1 MB). Free memory was 951.5 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:35:07,310 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 0.24 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 58.73 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 633.81 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 5485.58 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 212.3 MB). Free memory was 1.4 GB in the beginning and 951.5 MB in the end (delta: 496.1 MB). Peak memory consumption was 708.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15872.45 ms. Allocated memory was 1.8 GB in the beginning and 2.7 GB in the end (delta: 974.1 MB). Free memory was 951.5 MB in the beginning and 2.2 GB in the end (delta: -1.2 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 : 49 LocStat_MAX_WEQGRAPH_SIZE : 7 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 1105 LocStat_NO_SUPPORTING_DISEQUALITIES : 136 LocStat_NO_DISJUNCTIONS : -98 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 51 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 51 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 4012.08 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 78 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 51 different actions 76 times. Merged at 15 different actions 23 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: 107]: 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, 51 locations, 1 error locations. SAFE Result, 15.8s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 11.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 144 SDtfs, 1874 SDslu, 1069 SDs, 0 SdLazy, 1241 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred 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, 33 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 187918 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/70 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_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-14_18-35-07-326.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-14_18-35-07-326.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-14_18-35-07-326.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...