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/lis_unsafe_false-valid-deref.i_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 18:30:58,852 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 18:30:58,855 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 18:30:58,874 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 18:30:58,874 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 18:30:58,875 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 18:30:58,877 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 18:30:58,879 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 18:30:58,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 18:30:58,885 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 18:30:58,886 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 18:30:58,887 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 18:30:58,890 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 18:30:58,891 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 18:30:58,894 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 18:30:58,895 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 18:30:58,896 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 18:30:58,898 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 18:30:58,900 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 18:30:58,902 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 18:30:58,903 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 18:30:58,905 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 18:30:58,907 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-14 18:30:58,916 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 18:30:58,927 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 18:30:58,927 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 18:30:58,928 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 18:30:58,928 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 18:30:58,928 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 18:30:58,929 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 18:30:58,929 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 18:30:58,932 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 18:30:58,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 18:30:58,932 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 18:30:58,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 18:30:58,933 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 18:30:58,933 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 18:30:58,934 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 18:30:58,934 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 18:30:58,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 18:30:59,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 18:30:59,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 18:30:59,027 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 18:30:59,027 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 18:30:59,028 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis_unsafe_false-valid-deref.i_13.bpl [2018-10-14 18:30:59,029 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis_unsafe_false-valid-deref.i_13.bpl' [2018-10-14 18:30:59,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 18:30:59,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-14 18:30:59,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 18:30:59,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 18:30:59,137 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 18:30:59,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/1) ... [2018-10-14 18:30:59,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/1) ... [2018-10-14 18:30:59,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/1) ... [2018-10-14 18:30:59,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/1) ... [2018-10-14 18:30:59,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/1) ... [2018-10-14 18:30:59,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/1) ... [2018-10-14 18:30:59,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/1) ... [2018-10-14 18:30:59,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 18:30:59,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 18:30:59,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 18:30:59,220 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 18:30:59,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (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 18:30:59,304 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 18:30:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 18:30:59,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 18:31:00,001 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 18:31:00,002 INFO L202 PluginConnector]: Adding new model lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:31:00 BoogieIcfgContainer [2018-10-14 18:31:00,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 18:31:00,002 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-14 18:31:00,002 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-14 18:31:00,003 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-14 18:31:00,007 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:31:00" (1/1) ... [2018-10-14 18:31:00,016 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-14 18:31:00,016 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-14 18:31:00,056 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-14 18:31:00,113 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-14 18:31:00,134 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-14 18:31:00,208 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-14 18:31:55,783 INFO L315 AbstractInterpreter]: Visited 84 different actions 242 times. Merged at 40 different actions 149 times. Widened at 5 different actions 9 times. Found 5 fixpoints after 3 different actions. Largest state had 0 variables. [2018-10-14 18:31:55,787 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-14 18:31:55,791 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-14 18:31:55,803 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |#loc_#memory_int_(Array-Int-#locsort1)| |v_ULTIMATE.start_read~int_#ptr.base_7|) at (assume #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-14 18:31:55,805 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select (select |#loc_#memory_int_(Array-Int-(Array-Int-#locsort2))| |v_ULTIMATE.start_read~int_#ptr.base_7|) |v_ULTIMATE.start_read~int_#ptr.offset_5|) at (assume #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-14 18:31:55,842 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]];) [2018-10-14 18:31:55,875 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |v_#locv_ULTIMATE.start_write~int_old_#memory_int_4_1_1| |v_ULTIMATE.start_write~int_#ptr.base_12|) at (assume 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]] == #memory_int;) [2018-10-14 18:31:55,877 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-14 18:31:55,877 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:31:55,878 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:31:55,878 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:31:55,878 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:31:55,878 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:31:55,878 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:31:55,879 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:31:55,879 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:31:55,879 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:31:55,879 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:31:55,879 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:31:55,879 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:31:55,880 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:31:55,880 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:31:55,881 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-14 18:31:55,904 INFO L202 PluginConnector]: Adding new model lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:31:55 BasicIcfg [2018-10-14 18:31:55,904 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-14 18:31:55,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 18:31:55,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 18:31:55,915 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 18:31:55,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:30:59" (1/3) ... [2018-10-14 18:31:55,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d23af3a and model type lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:31:55, skipping insertion in model container [2018-10-14 18:31:55,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:31:00" (2/3) ... [2018-10-14 18:31:55,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d23af3a and model type lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:31:55, skipping insertion in model container [2018-10-14 18:31:55,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:31:55" (3/3) ... [2018-10-14 18:31:55,926 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-14 18:31:55,939 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 18:31:55,950 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 18:31:55,968 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 18:31:55,990 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 18:31:55,991 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 18:31:55,991 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 18:31:55,991 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 18:31:55,991 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 18:31:55,991 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 18:31:55,992 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 18:31:55,992 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 18:31:55,992 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 18:31:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-10-14 18:31:56,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-14 18:31:56,012 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:31:56,013 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:31:56,014 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:31:56,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:31:56,019 INFO L82 PathProgramCache]: Analyzing trace with hash 485211685, now seen corresponding path program 1 times [2018-10-14 18:31:56,076 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:31:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:31:57,243 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 18:31:57,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:31:57,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-10-14 18:31:57,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-14 18:31:57,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-14 18:31:57,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-14 18:31:57,354 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 14 states. [2018-10-14 18:31:58,028 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-14 18:31:58,241 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-14 18:31:59,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:31:59,239 INFO L93 Difference]: Finished difference Result 114 states and 116 transitions. [2018-10-14 18:31:59,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-14 18:31:59,241 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2018-10-14 18:31:59,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:31:59,254 INFO L225 Difference]: With dead ends: 114 [2018-10-14 18:31:59,254 INFO L226 Difference]: Without dead ends: 114 [2018-10-14 18:31:59,256 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2018-10-14 18:31:59,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-10-14 18:31:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 85. [2018-10-14 18:31:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-10-14 18:31:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2018-10-14 18:31:59,304 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 51 [2018-10-14 18:31:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:31:59,305 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2018-10-14 18:31:59,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-14 18:31:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2018-10-14 18:31:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-14 18:31:59,308 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:31:59,308 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:31:59,308 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:31:59,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:31:59,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2002986315, now seen corresponding path program 1 times [2018-10-14 18:31:59,310 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:31:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:31:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:31:59,454 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:31:59,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-14 18:31:59,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-14 18:31:59,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-14 18:31:59,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-14 18:31:59,457 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 7 states. [2018-10-14 18:31:59,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:31:59,599 INFO L93 Difference]: Finished difference Result 117 states and 118 transitions. [2018-10-14 18:31:59,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-14 18:31:59,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2018-10-14 18:31:59,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:31:59,604 INFO L225 Difference]: With dead ends: 117 [2018-10-14 18:31:59,604 INFO L226 Difference]: Without dead ends: 113 [2018-10-14 18:31:59,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-14 18:31:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-10-14 18:31:59,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2018-10-14 18:31:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-10-14 18:31:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2018-10-14 18:31:59,613 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 65 [2018-10-14 18:31:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:31:59,614 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2018-10-14 18:31:59,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-14 18:31:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2018-10-14 18:31:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-14 18:31:59,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:31:59,617 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:31:59,617 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:31:59,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:31:59,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1275678272, now seen corresponding path program 1 times [2018-10-14 18:31:59,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:31:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:31:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:31:59,834 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:31:59,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-14 18:31:59,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 18:31:59,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 18:31:59,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-14 18:31:59,836 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand 9 states. [2018-10-14 18:32:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:32:00,072 INFO L93 Difference]: Finished difference Result 121 states and 122 transitions. [2018-10-14 18:32:00,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 18:32:00,072 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-10-14 18:32:00,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:32:00,074 INFO L225 Difference]: With dead ends: 121 [2018-10-14 18:32:00,074 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 18:32:00,075 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-14 18:32:00,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 18:32:00,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 18:32:00,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 18:32:00,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 18:32:00,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2018-10-14 18:32:00,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:32:00,076 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 18:32:00,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 18:32:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 18:32:00,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 18:32:00,081 INFO L202 PluginConnector]: Adding new model lis_unsafe_false-valid-deref.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:32:00 BasicIcfg [2018-10-14 18:32:00,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 18:32:00,082 INFO L168 Benchmark]: Toolchain (without parser) took 60947.31 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.3 GB). Peak memory consumption was 165.7 MB. Max. memory is 7.1 GB. [2018-10-14 18:32:00,083 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. [2018-10-14 18:32:00,084 INFO L168 Benchmark]: Boogie Preprocessor took 82.12 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. [2018-10-14 18:32:00,084 INFO L168 Benchmark]: RCFGBuilder took 782.31 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 18:32:00,085 INFO L168 Benchmark]: IcfgTransformer took 55902.19 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 318.7 MB. Max. memory is 7.1 GB. [2018-10-14 18:32:00,086 INFO L168 Benchmark]: TraceAbstraction took 4172.73 ms. Allocated memory was 3.5 GB in the beginning and 4.0 GB in the end (delta: 493.4 MB). Free memory was 3.1 GB in the beginning and 3.8 GB in the end (delta: -678.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:32:00,091 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 82.12 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 782.31 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * IcfgTransformer took 55902.19 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 318.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4172.73 ms. Allocated memory was 3.5 GB in the beginning and 4.0 GB in the end (delta: 493.4 MB). Free memory was 3.1 GB in the beginning and 3.8 GB in the end (delta: -678.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 81 LocStat_MAX_WEQGRAPH_SIZE : 7 LocStat_MAX_SIZEOF_WEQEDGELABEL : 4 LocStat_NO_SUPPORTING_EQUALITIES : 2011 LocStat_NO_SUPPORTING_DISEQUALITIES : 388 LocStat_NO_DISJUNCTIONS : -162 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 84 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 79 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 84 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 13125.35 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 244 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 84 different actions 242 times. Merged at 40 different actions 149 times. Widened at 5 different actions 9 times. Found 5 fixpoints after 3 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 2 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 : 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: 166]: 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, 83 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 190 SDtfs, 749 SDslu, 742 SDs, 0 SdLazy, 415 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred 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, 56 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 47138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 6/9 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/lis_unsafe_false-valid-deref.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-14_18-32-00-109.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis_unsafe_false-valid-deref.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-14_18-32-00-109.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis_unsafe_false-valid-deref.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-14_18-32-00-109.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...