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/array3_false-valid-deref.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 16:30:02,735 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 16:30:02,737 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 16:30:02,748 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 16:30:02,749 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 16:30:02,750 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 16:30:02,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 16:30:02,753 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 16:30:02,754 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 16:30:02,755 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 16:30:02,756 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 16:30:02,756 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 16:30:02,757 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 16:30:02,758 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 16:30:02,759 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 16:30:02,760 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 16:30:02,761 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 16:30:02,762 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 16:30:02,764 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 16:30:02,766 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 16:30:02,767 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 16:30:02,768 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 16:30:02,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 16:30:02,779 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 16:30:02,792 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 16:30:02,793 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 16:30:02,793 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 16:30:02,794 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 16:30:02,795 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 16:30:02,795 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 16:30:02,795 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 16:30:02,796 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 16:30:02,796 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 16:30:02,797 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 16:30:02,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 16:30:02,797 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 16:30:02,797 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 16:30:02,798 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 16:30:02,798 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 16:30:02,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 16:30:02,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 16:30:02,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 16:30:02,868 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 16:30:02,869 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 16:30:02,870 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array3_false-valid-deref.i_5.bpl [2018-10-10 16:30:02,870 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array3_false-valid-deref.i_5.bpl' [2018-10-10 16:30:02,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 16:30:02,931 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-10 16:30:02,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 16:30:02,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 16:30:02,932 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 16:30:02,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... [2018-10-10 16:30:02,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... [2018-10-10 16:30:02,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... [2018-10-10 16:30:02,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... [2018-10-10 16:30:02,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... [2018-10-10 16:30:02,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... [2018-10-10 16:30:02,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... [2018-10-10 16:30:02,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 16:30:02,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 16:30:02,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 16:30:02,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 16:30:02,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 16:30:03,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 16:30:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 16:30:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 16:30:03,590 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 16:30:03,591 INFO L202 PluginConnector]: Adding new model array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:30:03 BoogieIcfgContainer [2018-10-10 16:30:03,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 16:30:03,592 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-10 16:30:03,592 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-10 16:30:03,593 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-10 16:30:03,597 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:30:03" (1/1) ... [2018-10-10 16:30:03,604 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-10 16:30:03,605 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-10 16:30:03,638 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-10 16:30:03,672 INFO L217 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-10 16:30:03,687 INFO L280 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-10 16:30:03,763 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-10 16:30:05,977 INFO L315 AbstractInterpreter]: Visited 36 different actions 72 times. Merged at 17 different actions 34 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-10 16:30:05,980 INFO L304 apSepIcfgTransformer]: finished equality analysis [2018-10-10 16:30:05,984 INFO L316 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-10 16:30:06,017 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |v_#locv_ULTIMATE.start_write~int_old_#memory_int_2_1_1| |v_ULTIMATE.start_write~int_#ptr.base_6|) at (assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base := write~int_old_#memory_int[write~int_#ptr.base][write~int_#ptr.offset := write~int_#value]];) [2018-10-10 16:30:06,019 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-10 16:30:06,020 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:30:06,020 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:30:06,021 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-10 16:30:06,021 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:30:06,021 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:30:06,021 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-10 16:30:06,021 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-10 16:30:06,022 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:30:06,022 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:30:06,022 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-10 16:30:06,022 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:30:06,022 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:30:06,023 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-10 16:30:06,023 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-10 16:30:06,024 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-10 16:30:06,037 INFO L202 PluginConnector]: Adding new model array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:30:06 BasicIcfg [2018-10-10 16:30:06,037 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-10 16:30:06,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 16:30:06,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 16:30:06,042 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 16:30:06,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:02" (1/3) ... [2018-10-10 16:30:06,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca07b82 and model type array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 04:30:06, skipping insertion in model container [2018-10-10 16:30:06,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:30:03" (2/3) ... [2018-10-10 16:30:06,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca07b82 and model type array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:30:06, skipping insertion in model container [2018-10-10 16:30:06,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:30:06" (3/3) ... [2018-10-10 16:30:06,046 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-10 16:30:06,057 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 16:30:06,065 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 16:30:06,084 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 16:30:06,110 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 16:30:06,111 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 16:30:06,111 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 16:30:06,112 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 16:30:06,112 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 16:30:06,112 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 16:30:06,114 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 16:30:06,114 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 16:30:06,114 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 16:30:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-10-10 16:30:06,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-10 16:30:06,142 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:06,144 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] [2018-10-10 16:30:06,145 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:06,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:06,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1279795182, now seen corresponding path program 1 times [2018-10-10 16:30:06,224 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:30:06,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 16:30:06,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 16:30:06,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 16:30:06,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 16:30:06,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 16:30:06,435 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2018-10-10 16:30:06,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:06,650 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-10-10 16:30:06,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 16:30:06,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-10-10 16:30:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:06,666 INFO L225 Difference]: With dead ends: 49 [2018-10-10 16:30:06,666 INFO L226 Difference]: Without dead ends: 49 [2018-10-10 16:30:06,668 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 16:30:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-10 16:30:06,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37. [2018-10-10 16:30:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-10 16:30:06,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-10-10 16:30:06,785 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 22 [2018-10-10 16:30:06,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:06,786 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-10-10 16:30:06,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 16:30:06,786 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-10-10 16:30:06,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-10 16:30:06,789 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:06,789 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] [2018-10-10 16:30:06,789 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:06,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:06,790 INFO L82 PathProgramCache]: Analyzing trace with hash -449407900, now seen corresponding path program 1 times [2018-10-10 16:30:06,791 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:30:06,962 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:30:06,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 16:30:06,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 16:30:06,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 16:30:06,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-10 16:30:06,965 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 5 states. [2018-10-10 16:30:07,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:07,148 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-10-10 16:30:07,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 16:30:07,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-10-10 16:30:07,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:07,152 INFO L225 Difference]: With dead ends: 63 [2018-10-10 16:30:07,153 INFO L226 Difference]: Without dead ends: 63 [2018-10-10 16:30:07,154 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-10 16:30:07,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-10 16:30:07,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 51. [2018-10-10 16:30:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-10 16:30:07,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-10-10 16:30:07,165 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 36 [2018-10-10 16:30:07,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:07,166 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-10-10 16:30:07,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 16:30:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-10-10 16:30:07,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-10 16:30:07,171 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:07,171 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 16:30:07,172 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:07,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:07,172 INFO L82 PathProgramCache]: Analyzing trace with hash 485294682, now seen corresponding path program 2 times [2018-10-10 16:30:07,174 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-10 16:30:07,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 16:30:07,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 16:30:07,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 16:30:07,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 16:30:07,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 16:30:07,350 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 5 states. [2018-10-10 16:30:07,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:07,504 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-10-10 16:30:07,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 16:30:07,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2018-10-10 16:30:07,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:07,506 INFO L225 Difference]: With dead ends: 49 [2018-10-10 16:30:07,506 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 16:30:07,507 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 16:30:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 16:30:07,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 16:30:07,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 16:30:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 16:30:07,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-10-10 16:30:07,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:07,508 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 16:30:07,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 16:30:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 16:30:07,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 16:30:07,513 INFO L202 PluginConnector]: Adding new model array3_false-valid-deref.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:30:07 BasicIcfg [2018-10-10 16:30:07,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 16:30:07,514 INFO L168 Benchmark]: Toolchain (without parser) took 4584.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 817.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -819.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:30:07,515 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:30:07,516 INFO L168 Benchmark]: Boogie Preprocessor took 57.68 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:30:07,516 INFO L168 Benchmark]: RCFGBuilder took 601.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 16:30:07,517 INFO L168 Benchmark]: IcfgTransformer took 2445.64 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 73.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -18.8 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. [2018-10-10 16:30:07,518 INFO L168 Benchmark]: TraceAbstraction took 1474.84 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -821.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:30:07,523 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.68 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 601.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 2445.64 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 73.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -18.8 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1474.84 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -821.3 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 : 34 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 437 LocStat_NO_SUPPORTING_DISEQUALITIES : 92 LocStat_NO_DISJUNCTIONS : -68 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 36 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 35 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 36 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 1514.30 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 72 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 36 different actions 72 times. Merged at 17 different actions 34 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 0 COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: 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, 38 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 63 SDslu, 133 SDs, 0 SdLazy, 69 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, 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, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 12607 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 16/17 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/array3_false-valid-deref.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-10_16-30-07-539.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array3_false-valid-deref.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-10_16-30-07-539.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array3_false-valid-deref.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-10_16-30-07-539.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...