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/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 22:35:22,231 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 22:35:22,233 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 22:35:22,252 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 22:35:22,252 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 22:35:22,253 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 22:35:22,255 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 22:35:22,258 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 22:35:22,260 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 22:35:22,261 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 22:35:22,270 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 22:35:22,271 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 22:35:22,272 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 22:35:22,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 22:35:22,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 22:35:22,277 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 22:35:22,280 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 22:35:22,282 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 22:35:22,285 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 22:35:22,287 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 22:35:22,291 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 22:35:22,293 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 22:35:22,298 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 22:35:22,299 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 22:35:22,299 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 22:35:22,300 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 22:35:22,301 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 22:35:22,303 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 22:35:22,304 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 22:35:22,305 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 22:35:22,306 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 22:35:22,307 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 22:35:22,311 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 22:35:22,327 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 22:35:22,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 22:35:22,328 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 22:35:22,329 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 22:35:22,329 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 22:35:22,329 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 22:35:22,330 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 22:35:22,330 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 22:35:22,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 22:35:22,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 22:35:22,331 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 22:35:22,331 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 22:35:22,331 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 22:35:22,332 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 22:35:22,332 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 22:35:22,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 22:35:22,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 22:35:22,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 22:35:22,424 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 22:35:22,425 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 22:35:22,425 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl [2018-10-12 22:35:22,426 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl' [2018-10-12 22:35:22,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 22:35:22,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 22:35:22,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 22:35:22,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 22:35:22,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 22:35:22,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/1) ... [2018-10-12 22:35:22,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/1) ... [2018-10-12 22:35:22,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/1) ... [2018-10-12 22:35:22,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/1) ... [2018-10-12 22:35:22,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/1) ... [2018-10-12 22:35:22,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/1) ... [2018-10-12 22:35:22,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/1) ... [2018-10-12 22:35:22,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 22:35:22,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 22:35:22,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 22:35:22,558 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 22:35:22,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (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 22:35:22,622 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 22:35:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 22:35:22,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 22:35:23,115 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 22:35:23,116 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:35:23 BoogieIcfgContainer [2018-10-12 22:35:23,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 22:35:23,117 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 22:35:23,117 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 22:35:23,118 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 22:35:23,121 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:35:23" (1/1) ... [2018-10-12 22:35:23,128 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 22:35:23,128 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 22:35:23,162 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 22:35:23,215 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 22:35:23,232 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 22:35:23,298 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 22:35:26,298 INFO L315 AbstractInterpreter]: Visited 51 different actions 106 times. Merged at 32 different actions 53 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 22:35:26,303 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 22:35:26,306 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 22:35:26,370 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 22:35:26,370 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:35:26,371 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:35:26,372 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:35:26,372 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-12 22:35:26,372 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:35:26,372 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-12 22:35:26,373 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-12 22:35:26,373 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:35:26,373 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:35:26,373 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:35:26,373 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-12 22:35:26,374 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:35:26,375 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-12 22:35:26,375 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-12 22:35:26,378 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 22:35:26,397 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:35:26 BasicIcfg [2018-10-12 22:35:26,398 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 22:35:26,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 22:35:26,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 22:35:26,406 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 22:35:26,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:35:22" (1/3) ... [2018-10-12 22:35:26,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6421c373 and model type ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:35:26, skipping insertion in model container [2018-10-12 22:35:26,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:35:23" (2/3) ... [2018-10-12 22:35:26,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6421c373 and model type ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:35:26, skipping insertion in model container [2018-10-12 22:35:26,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:35:26" (3/3) ... [2018-10-12 22:35:26,409 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 22:35:26,421 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 22:35:26,429 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 22:35:26,448 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 22:35:26,479 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 22:35:26,480 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 22:35:26,480 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 22:35:26,480 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 22:35:26,481 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 22:35:26,482 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 22:35:26,482 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 22:35:26,483 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 22:35:26,483 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 22:35:26,498 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-10-12 22:35:26,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-12 22:35:26,512 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:35:26,513 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] [2018-10-12 22:35:26,514 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:35:26,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:35:26,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2002459442, now seen corresponding path program 1 times [2018-10-12 22:35:26,590 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:35:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:35:27,119 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 22:35:27,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 22:35:27,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-12 22:35:27,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-12 22:35:27,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-12 22:35:27,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-12 22:35:27,145 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 6 states. [2018-10-12 22:35:27,621 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-12 22:35:28,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:35:28,062 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-10-12 22:35:28,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-12 22:35:28,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-10-12 22:35:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:35:28,077 INFO L225 Difference]: With dead ends: 80 [2018-10-12 22:35:28,077 INFO L226 Difference]: Without dead ends: 79 [2018-10-12 22:35:28,079 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-12 22:35:28,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-10-12 22:35:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 60. [2018-10-12 22:35:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-10-12 22:35:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-10-12 22:35:28,183 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 33 [2018-10-12 22:35:28,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:35:28,185 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-10-12 22:35:28,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-12 22:35:28,185 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-10-12 22:35:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-12 22:35:28,188 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:35:28,189 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-12 22:35:28,189 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:35:28,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:35:28,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1923956291, now seen corresponding path program 1 times [2018-10-12 22:35:28,190 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:35:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:35:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:35:28,989 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:35:28,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-12 22:35:28,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-12 22:35:28,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-12 22:35:28,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-10-12 22:35:28,993 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 14 states. [2018-10-12 22:35:29,502 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-12 22:35:30,199 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-10-12 22:35:30,772 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-10-12 22:35:31,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:35:31,041 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-12 22:35:31,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-12 22:35:31,042 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2018-10-12 22:35:31,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:35:31,046 INFO L225 Difference]: With dead ends: 109 [2018-10-12 22:35:31,046 INFO L226 Difference]: Without dead ends: 105 [2018-10-12 22:35:31,050 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2018-10-12 22:35:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-10-12 22:35:31,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 86. [2018-10-12 22:35:31,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-10-12 22:35:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-10-12 22:35:31,065 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 59 [2018-10-12 22:35:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:35:31,066 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-10-12 22:35:31,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-12 22:35:31,066 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-10-12 22:35:31,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-12 22:35:31,074 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:35:31,074 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-12 22:35:31,075 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:35:31,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:35:31,075 INFO L82 PathProgramCache]: Analyzing trace with hash -282345964, now seen corresponding path program 2 times [2018-10-12 22:35:31,077 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:35:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:35:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 37 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:35:31,285 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:35:31,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-12 22:35:31,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-12 22:35:31,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-12 22:35:31,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-12 22:35:31,287 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 8 states. [2018-10-12 22:35:31,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:35:31,448 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2018-10-12 22:35:31,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-12 22:35:31,449 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2018-10-12 22:35:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:35:31,450 INFO L225 Difference]: With dead ends: 54 [2018-10-12 22:35:31,450 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 22:35:31,451 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-10-12 22:35:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 22:35:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 22:35:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 22:35:31,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 22:35:31,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2018-10-12 22:35:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:35:31,452 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 22:35:31,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-12 22:35:31,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 22:35:31,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 22:35:31,457 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:35:31 BasicIcfg [2018-10-12 22:35:31,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 22:35:31,458 INFO L168 Benchmark]: Toolchain (without parser) took 8954.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -690.0 MB). Peak memory consumption was 133.2 MB. Max. memory is 7.1 GB. [2018-10-12 22:35:31,459 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 22:35:31,460 INFO L168 Benchmark]: Boogie Preprocessor took 52.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 22:35:31,460 INFO L168 Benchmark]: RCFGBuilder took 558.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-12 22:35:31,461 INFO L168 Benchmark]: IcfgTransformer took 3281.81 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 45.6 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 357.6 MB). Peak memory consumption was 403.2 MB. Max. memory is 7.1 GB. [2018-10-12 22:35:31,462 INFO L168 Benchmark]: TraceAbstraction took 5057.47 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 777.5 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 22:35:31,467 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 558.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 3281.81 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 45.6 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 357.6 MB). Peak memory consumption was 403.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5057.47 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 777.5 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 49 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 941 LocStat_NO_SUPPORTING_DISEQUALITIES : 152 LocStat_NO_DISJUNCTIONS : -98 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 51 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 48 TransStat_NO_SUPPORTING_DISEQUALITIES : 1 TransStat_NO_DISJUNCTIONS : 51 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 1826.05 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 108 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 51 different actions 106 times. Merged at 32 different actions 53 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 : 2 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 2 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 127 SDtfs, 633 SDslu, 615 SDs, 0 SdLazy, 250 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.9s 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, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 48176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 37/59 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/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_22-35-31-495.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_22-35-31-495.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_22-35-31-495.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...