java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 23:00:48,256 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 23:00:48,258 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 23:00:48,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 23:00:48,274 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 23:00:48,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 23:00:48,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 23:00:48,280 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 23:00:48,282 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 23:00:48,285 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 23:00:48,286 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 23:00:48,287 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 23:00:48,288 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 23:00:48,290 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 23:00:48,294 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 23:00:48,294 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 23:00:48,296 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 23:00:48,300 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 23:00:48,308 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 23:00:48,313 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 23:00:48,315 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 23:00:48,317 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 23:00:48,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 23:00:48,320 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 23:00:48,320 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 23:00:48,321 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 23:00:48,322 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 23:00:48,323 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 23:00:48,323 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 23:00:48,324 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 23:00:48,325 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 23:00:48,325 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 23:00:48,329 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 23:00:48,346 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 23:00:48,347 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 23:00:48,349 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 23:00:48,350 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 23:00:48,350 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 23:00:48,350 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 23:00:48,351 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 23:00:48,351 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 23:00:48,351 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 23:00:48,351 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 23:00:48,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 23:00:48,352 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 23:00:48,352 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 23:00:48,353 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 23:00:48,353 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 23:00:48,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 23:00:48,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 23:00:48,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 23:00:48,434 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 23:00:48,434 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 23:00:48,435 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl [2018-10-12 23:00:48,435 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl' [2018-10-12 23:00:48,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 23:00:48,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 23:00:48,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 23:00:48,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 23:00:48,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 23:00:48,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... [2018-10-12 23:00:48,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... [2018-10-12 23:00:48,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... [2018-10-12 23:00:48,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... [2018-10-12 23:00:48,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... [2018-10-12 23:00:48,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... [2018-10-12 23:00:48,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... [2018-10-12 23:00:48,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 23:00:48,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 23:00:48,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 23:00:48,612 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 23:00:48,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 23:00:48,683 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 23:00:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 23:00:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 23:00:49,479 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 23:00:49,481 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:00:49 BoogieIcfgContainer [2018-10-12 23:00:49,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 23:00:49,481 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 23:00:49,481 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 23:00:49,483 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 23:00:49,487 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:00:49" (1/1) ... [2018-10-12 23:00:49,497 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 23:00:49,497 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 23:00:49,544 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 23:00:49,601 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 23:00:49,626 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 23:00:49,720 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 23:02:07,023 INFO L315 AbstractInterpreter]: Visited 102 different actions 150 times. Merged at 41 different actions 47 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 23:02:07,026 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 23:02:07,030 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 23:02:07,217 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_12|) |v_ULTIMATE.start_read~int_#ptr.offset_8|) at (assume read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-12 23:02:07,427 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_19|) |v_ULTIMATE.start_read~int_#ptr.offset_13|) at (assume read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-12 23:02:07,846 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_6|) |v_ULTIMATE.start_read~int_#ptr.offset_4|) at (assume #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-12 23:02:07,848 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 23:02:07,849 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 23:02:07,849 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 23:02:07,849 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 23:02:07,849 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 23:02:07,849 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 23:02:07,850 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 23:02:07,850 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 23:02:07,850 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 23:02:07,850 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 23:02:07,850 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 23:02:07,851 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 23:02:07,851 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 23:02:07,851 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 23:02:07,851 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 23:02:07,853 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 23:02:07,902 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 11:02:07 BasicIcfg [2018-10-12 23:02:07,902 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 23:02:07,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 23:02:07,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 23:02:07,912 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 23:02:07,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:48" (1/3) ... [2018-10-12 23:02:07,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbc9f6b and model type openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:02:07, skipping insertion in model container [2018-10-12 23:02:07,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:00:49" (2/3) ... [2018-10-12 23:02:07,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbc9f6b and model type openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:02:07, skipping insertion in model container [2018-10-12 23:02:07,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 11:02:07" (3/3) ... [2018-10-12 23:02:07,917 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 23:02:07,928 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 23:02:07,935 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 23:02:07,949 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 23:02:07,969 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 23:02:07,970 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 23:02:07,970 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 23:02:07,970 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 23:02:07,970 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 23:02:07,971 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 23:02:07,971 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 23:02:07,971 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 23:02:07,971 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 23:02:07,983 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-12 23:02:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-12 23:02:07,992 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:02:07,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:02:07,994 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:02:07,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:02:07,998 INFO L82 PathProgramCache]: Analyzing trace with hash -807324860, now seen corresponding path program 1 times [2018-10-12 23:02:08,056 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:02:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:02:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:02:09,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 23:02:09,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 23:02:09,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 23:02:09,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 23:02:09,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-12 23:02:09,037 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 12 states. [2018-10-12 23:02:10,132 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-12 23:02:10,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:02:10,633 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-10-12 23:02:10,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-12 23:02:10,643 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2018-10-12 23:02:10,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:02:10,656 INFO L225 Difference]: With dead ends: 140 [2018-10-12 23:02:10,657 INFO L226 Difference]: Without dead ends: 140 [2018-10-12 23:02:10,659 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2018-10-12 23:02:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-12 23:02:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 127. [2018-10-12 23:02:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-10-12 23:02:10,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-10-12 23:02:10,727 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 87 [2018-10-12 23:02:10,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:02:10,729 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-10-12 23:02:10,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 23:02:10,730 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-10-12 23:02:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-12 23:02:10,738 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:02:10,739 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:02:10,739 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:02:10,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:02:10,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1421204035, now seen corresponding path program 1 times [2018-10-12 23:02:10,742 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:02:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:02:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:02:11,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 23:02:11,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-10-12 23:02:11,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-12 23:02:11,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-12 23:02:11,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-10-12 23:02:11,222 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 15 states. [2018-10-12 23:02:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:02:12,066 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-10-12 23:02:12,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-12 23:02:12,067 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 126 [2018-10-12 23:02:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:02:12,069 INFO L225 Difference]: With dead ends: 138 [2018-10-12 23:02:12,069 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 23:02:12,070 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2018-10-12 23:02:12,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 23:02:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 23:02:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 23:02:12,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 23:02:12,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2018-10-12 23:02:12,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:02:12,072 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 23:02:12,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-12 23:02:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 23:02:12,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 23:02:12,076 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:02:12 BasicIcfg [2018-10-12 23:02:12,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 23:02:12,077 INFO L168 Benchmark]: Toolchain (without parser) took 83543.85 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 208.5 MB. Max. memory is 7.1 GB. [2018-10-12 23:02:12,079 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-12 23:02:12,079 INFO L168 Benchmark]: Boogie Preprocessor took 75.19 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. [2018-10-12 23:02:12,080 INFO L168 Benchmark]: RCFGBuilder took 869.19 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. [2018-10-12 23:02:12,081 INFO L168 Benchmark]: IcfgTransformer took 78421.12 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -774.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-12 23:02:12,082 INFO L168 Benchmark]: TraceAbstraction took 4173.08 ms. Allocated memory was 3.4 GB in the beginning and 3.7 GB in the end (delta: 276.8 MB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.2 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:02:12,087 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 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 75.19 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 869.19 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 78421.12 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -774.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * TraceAbstraction took 4173.08 ms. Allocated memory was 3.4 GB in the beginning and 3.7 GB in the end (delta: 276.8 MB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.2 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 100 LocStat_MAX_WEQGRAPH_SIZE : 12 LocStat_MAX_SIZEOF_WEQEDGELABEL : 6 LocStat_NO_SUPPORTING_EQUALITIES : 3591 LocStat_NO_SUPPORTING_DISEQUALITIES : 845 LocStat_NO_DISJUNCTIONS : -200 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 102 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 100 TransStat_NO_SUPPORTING_DISEQUALITIES : 5 TransStat_NO_DISJUNCTIONS : 102 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 62953.39 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 152 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 102 different actions 150 times. Merged at 41 different actions 47 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] : 6 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 : 3 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 3 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: 178]: 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, 102 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 913 SDslu, 1096 SDs, 0 SdLazy, 464 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=1, 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, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 110245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_23-02-12-106.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_23-02-12-106.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_23-02-12-106.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...