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 0.1.23-093a8c0 [2018-10-14 18:16:16,727 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 18:16:16,729 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 18:16:16,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 18:16:16,741 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 18:16:16,742 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 18:16:16,743 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 18:16:16,745 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 18:16:16,747 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 18:16:16,747 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 18:16:16,748 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 18:16:16,749 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 18:16:16,750 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 18:16:16,750 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 18:16:16,752 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 18:16:16,752 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 18:16:16,753 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 18:16:16,758 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 18:16:16,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 18:16:16,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 18:16:16,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 18:16:16,769 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 18:16:16,775 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 18:16:16,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 18:16:16,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 18:16:16,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 18:16:16,779 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 18:16:16,780 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 18:16:16,784 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 18:16:16,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 18:16:16,786 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 18:16:16,789 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 18:16:16,789 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 18:16:16,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 18:16:16,790 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 18:16:16,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 18:16:16,793 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 18:16:16,810 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 18:16:16,810 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 18:16:16,812 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 18:16:16,812 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 18:16:16,812 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 18:16:16,812 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 18:16:16,813 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 18:16:16,813 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 18:16:16,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 18:16:16,813 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 18:16:16,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 18:16:16,814 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 18:16:16,814 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 18:16:16,815 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 18:16:16,816 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 18:16:16,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 18:16:16,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 18:16:16,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 18:16:16,887 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 18:16:16,888 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 18:16:16,888 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl [2018-10-14 18:16:16,889 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl' [2018-10-14 18:16:16,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 18:16:16,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-14 18:16:16,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 18:16:16,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 18:16:16,967 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 18:16:16,996 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 14.10 06:16:16" (1/1) ... [2018-10-14 18:16:16,998 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 14.10 06:16:16" (1/1) ... [2018-10-14 18:16:17,014 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 14.10 06:16:16" (1/1) ... [2018-10-14 18:16:17,015 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 14.10 06:16:16" (1/1) ... [2018-10-14 18:16:17,018 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 14.10 06:16:16" (1/1) ... [2018-10-14 18:16:17,021 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 14.10 06:16:16" (1/1) ... [2018-10-14 18:16:17,022 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 14.10 06:16:16" (1/1) ... [2018-10-14 18:16:17,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 18:16:17,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 18:16:17,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 18:16:17,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 18:16:17,026 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 14.10 06:16:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-14 18:16:17,097 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 18:16:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 18:16:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 18:16:17,660 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 18:16:17,661 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 14.10 06:16:17 BoogieIcfgContainer [2018-10-14 18:16:17,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 18:16:17,662 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-14 18:16:17,662 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-14 18:16:17,663 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-14 18:16:17,667 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 14.10 06:16:17" (1/1) ... [2018-10-14 18:16:17,675 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-14 18:16:17,675 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-14 18:16:17,709 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-14 18:16:17,753 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-14 18:16:17,767 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-14 18:16:17,833 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-14 18:16:21,477 INFO L315 AbstractInterpreter]: Visited 48 different actions 69 times. Merged at 13 different actions 19 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-14 18:16:21,480 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-14 18:16:21,485 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-14 18:16:21,497 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];) [2018-10-14 18:16:21,558 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-14 18:16:21,562 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:16:21,562 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:16:21,562 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:16:21,562 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:16:21,563 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:16:21,563 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:16:21,563 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:16:21,563 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:16:21,563 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:16:21,563 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:16:21,564 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:16:21,564 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:16:21,564 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:16:21,564 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:16:21,565 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-14 18:16:21,584 INFO L202 PluginConnector]: Adding new model cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:16:21 BasicIcfg [2018-10-14 18:16:21,585 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-14 18:16:21,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 18:16:21,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 18:16:21,589 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 18:16:21,590 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 14.10 06:16:16" (1/3) ... [2018-10-14 18:16:21,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f3e5fa and model type cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:16:21, skipping insertion in model container [2018-10-14 18:16:21,591 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 14.10 06:16:17" (2/3) ... [2018-10-14 18:16:21,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f3e5fa and model type cstrlen-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:16:21, skipping insertion in model container [2018-10-14 18:16:21,591 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 14.10 06:16:21" (3/3) ... [2018-10-14 18:16:21,593 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-14 18:16:21,603 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 18:16:21,611 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 18:16:21,628 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 18:16:21,653 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 18:16:21,653 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 18:16:21,654 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 18:16:21,654 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 18:16:21,654 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 18:16:21,654 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 18:16:21,655 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 18:16:21,655 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 18:16:21,655 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 18:16:21,671 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-10-14 18:16:21,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-14 18:16:21,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:21,679 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] [2018-10-14 18:16:21,680 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:21,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:21,686 INFO L82 PathProgramCache]: Analyzing trace with hash 123171028, now seen corresponding path program 1 times [2018-10-14 18:16:21,750 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:22,166 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 18:16:22,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:16:22,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-14 18:16:22,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 18:16:22,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 18:16:22,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-14 18:16:22,188 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 9 states. [2018-10-14 18:16:23,164 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-14 18:16:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:23,532 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-10-14 18:16:23,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-14 18:16:23,533 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-10-14 18:16:23,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:23,545 INFO L225 Difference]: With dead ends: 60 [2018-10-14 18:16:23,545 INFO L226 Difference]: Without dead ends: 60 [2018-10-14 18:16:23,546 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 [2018-10-14 18:16:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-10-14 18:16:23,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2018-10-14 18:16:23,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-14 18:16:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-10-14 18:16:23,648 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 36 [2018-10-14 18:16:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:23,649 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-10-14 18:16:23,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 18:16:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-10-14 18:16:23,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-14 18:16:23,651 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:23,651 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] [2018-10-14 18:16:23,651 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:23,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:23,652 INFO L82 PathProgramCache]: Analyzing trace with hash -526301946, now seen corresponding path program 1 times [2018-10-14 18:16:23,653 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:24,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-14 18:16:24,181 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:24,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-14 18:16:24,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 18:16:24,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 18:16:24,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-14 18:16:24,184 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 10 states. [2018-10-14 18:16:24,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:24,564 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-10-14 18:16:24,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-14 18:16:24,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2018-10-14 18:16:24,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:24,567 INFO L225 Difference]: With dead ends: 48 [2018-10-14 18:16:24,567 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 18:16:24,568 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-10-14 18:16:24,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 18:16:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 18:16:24,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 18:16:24,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 18:16:24,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-10-14 18:16:24,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:24,570 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 18:16:24,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 18:16:24,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 18:16:24,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 18:16:24,575 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 14.10 06:16:24 BasicIcfg [2018-10-14 18:16:24,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 18:16:24,576 INFO L168 Benchmark]: Toolchain (without parser) took 7610.38 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2018-10-14 18:16:24,577 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. [2018-10-14 18:16:24,578 INFO L168 Benchmark]: Boogie Preprocessor took 57.59 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 18:16:24,578 INFO L168 Benchmark]: RCFGBuilder took 636.55 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 18:16:24,579 INFO L168 Benchmark]: IcfgTransformer took 3923.00 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 207.1 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -139.5 MB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-10-14 18:16:24,580 INFO L168 Benchmark]: TraceAbstraction took 2989.00 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 857.7 MB). Free memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: -929.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:16:24,584 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 57.59 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 636.55 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 3923.00 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 207.1 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -139.5 MB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2989.00 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 857.7 MB). Free memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: -929.9 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 : 7 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) : 3225.98 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 69 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 48 different actions 69 times. Merged at 13 different actions 19 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, 2.9s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 314 SDslu, 220 SDs, 0 SdLazy, 230 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.5s 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, 0.8s 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-0-2018-10-14_18-16-24-601.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-0-2018-10-14_18-16-24-601.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-0-2018-10-14_18-16-24-601.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...