java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 18:16:27,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 18:16:27,149 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 18:16:27,165 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 18:16:27,166 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 18:16:27,167 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 18:16:27,169 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 18:16:27,172 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 18:16:27,175 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 18:16:27,176 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 18:16:27,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 18:16:27,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 18:16:27,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 18:16:27,188 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 18:16:27,189 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 18:16:27,190 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 18:16:27,191 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 18:16:27,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 18:16:27,197 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 18:16:27,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 18:16:27,200 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 18:16:27,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 18:16:27,203 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 18:16:27,203 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 18:16:27,203 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 18:16:27,204 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 18:16:27,205 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 18:16:27,206 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 18:16:27,206 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 18:16:27,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 18:16:27,208 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 18:16:27,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 18:16:27,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 18:16:27,209 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 18:16:27,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 18:16:27,210 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 18:16:27,211 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 18:16:27,225 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 18:16:27,225 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 18:16:27,226 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 18:16:27,226 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 18:16:27,226 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 18:16:27,227 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 18:16:27,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 18:16:27,228 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 18:16:27,228 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 18:16:27,229 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 18:16:27,229 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 18:16:27,229 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 18:16:27,229 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 18:16:27,231 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 18:16:27,231 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 18:16:27,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 18:16:27,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 18:16:27,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 18:16:27,304 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 18:16:27,305 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 18:16:27,305 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-14 18:16:27,306 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl' [2018-10-14 18:16:27,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 18:16:27,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-14 18:16:27,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 18:16:27,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 18:16:27,394 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 18:16:27,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... [2018-10-14 18:16:27,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... [2018-10-14 18:16:27,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... [2018-10-14 18:16:27,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... [2018-10-14 18:16:27,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... [2018-10-14 18:16:27,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... [2018-10-14 18:16:27,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... [2018-10-14 18:16:27,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 18:16:27,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 18:16:27,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 18:16:27,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 18:16:27,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-14 18:16:27,513 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 18:16:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 18:16:27,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 18:16:28,075 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 18:16:28,076 INFO L202 PluginConnector]: Adding new model cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:16:28 BoogieIcfgContainer [2018-10-14 18:16:28,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 18:16:28,077 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-14 18:16:28,077 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-14 18:16:28,078 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-14 18:16:28,082 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:16:28" (1/1) ... [2018-10-14 18:16:28,091 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-14 18:16:28,092 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-14 18:16:28,130 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-14 18:16:28,175 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-14 18:16:28,190 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-14 18:16:28,275 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-14 18:16:33,549 INFO L315 AbstractInterpreter]: Visited 50 different actions 75 times. Merged at 15 different actions 23 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-14 18:16:33,553 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-14 18:16:33,558 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-14 18:16:33,571 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 read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-14 18:16:33,652 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-14 18:16:33,653 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:16:33,653 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:16:33,653 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:16:33,653 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:16:33,654 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:16:33,655 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:16:33,655 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:16:33,656 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:16:33,656 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:16:33,656 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:16:33,656 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:16:33,656 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:16:33,657 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-14 18:16:33,657 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:16:33,658 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-14 18:16:33,691 INFO L202 PluginConnector]: Adding new model cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:16:33 BasicIcfg [2018-10-14 18:16:33,691 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-14 18:16:33,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 18:16:33,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 18:16:33,699 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 18:16:33,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:16:27" (1/3) ... [2018-10-14 18:16:33,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d19905 and model type cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:16:33, skipping insertion in model container [2018-10-14 18:16:33,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:16:28" (2/3) ... [2018-10-14 18:16:33,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d19905 and model type cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:16:33, skipping insertion in model container [2018-10-14 18:16:33,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:16:33" (3/3) ... [2018-10-14 18:16:33,703 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-14 18:16:33,717 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 18:16:33,726 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 18:16:33,745 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 18:16:33,773 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 18:16:33,774 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 18:16:33,775 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 18:16:33,775 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 18:16:33,775 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 18:16:33,775 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 18:16:33,777 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 18:16:33,777 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 18:16:33,777 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 18:16:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-10-14 18:16:33,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-14 18:16:33,806 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:33,808 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] [2018-10-14 18:16:33,809 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:33,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:33,816 INFO L82 PathProgramCache]: Analyzing trace with hash -476665265, now seen corresponding path program 1 times [2018-10-14 18:16:33,886 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:36,017 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-14 18:16:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:36,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:16:36,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 18:16:36,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 18:16:36,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 18:16:36,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-14 18:16:36,062 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 12 states. [2018-10-14 18:16:37,198 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-10-14 18:16:37,557 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-10-14 18:16:37,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:37,684 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-10-14 18:16:37,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-14 18:16:37,685 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-10-14 18:16:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:37,697 INFO L225 Difference]: With dead ends: 62 [2018-10-14 18:16:37,697 INFO L226 Difference]: Without dead ends: 62 [2018-10-14 18:16:37,699 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2018-10-14 18:16:37,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-10-14 18:16:37,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2018-10-14 18:16:37,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-14 18:16:37,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-10-14 18:16:37,738 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 37 [2018-10-14 18:16:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:37,738 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-10-14 18:16:37,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 18:16:37,739 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-10-14 18:16:37,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-14 18:16:37,740 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:37,741 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 18:16:37,741 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:37,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:37,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1134501795, now seen corresponding path program 1 times [2018-10-14 18:16:37,743 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:38,198 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-14 18:16:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:38,591 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:38,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-14 18:16:38,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-14 18:16:38,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-14 18:16:38,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2018-10-14 18:16:38,594 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 20 states. [2018-10-14 18:16:39,545 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-10-14 18:16:39,943 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-10-14 18:16:40,142 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-14 18:16:40,579 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-10-14 18:16:41,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:41,131 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-10-14 18:16:41,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 18:16:41,133 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2018-10-14 18:16:41,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:41,135 INFO L225 Difference]: With dead ends: 75 [2018-10-14 18:16:41,135 INFO L226 Difference]: Without dead ends: 75 [2018-10-14 18:16:41,137 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=384, Invalid=1022, Unknown=0, NotChecked=0, Total=1406 [2018-10-14 18:16:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-10-14 18:16:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2018-10-14 18:16:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-10-14 18:16:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-10-14 18:16:41,144 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 50 [2018-10-14 18:16:41,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:41,144 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-10-14 18:16:41,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-14 18:16:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-10-14 18:16:41,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-14 18:16:41,147 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:41,147 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-10-14 18:16:41,147 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:41,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:41,148 INFO L82 PathProgramCache]: Analyzing trace with hash 511668495, now seen corresponding path program 2 times [2018-10-14 18:16:41,148 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:42,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:42,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-10-14 18:16:42,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-14 18:16:42,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-14 18:16:42,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2018-10-14 18:16:42,058 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 22 states. [2018-10-14 18:16:42,769 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-10-14 18:16:42,988 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-10-14 18:16:43,134 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-10-14 18:16:43,370 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-14 18:16:43,838 WARN L179 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-14 18:16:44,008 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-14 18:16:44,383 WARN L179 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2018-10-14 18:16:44,715 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2018-10-14 18:16:45,081 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2018-10-14 18:16:45,509 WARN L179 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2018-10-14 18:16:45,873 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2018-10-14 18:16:46,165 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2018-10-14 18:16:46,355 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-14 18:16:46,735 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-14 18:16:46,926 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-14 18:16:47,282 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-14 18:16:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:47,467 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-10-14 18:16:47,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-14 18:16:47,467 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 63 [2018-10-14 18:16:47,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:47,469 INFO L225 Difference]: With dead ends: 88 [2018-10-14 18:16:47,469 INFO L226 Difference]: Without dead ends: 88 [2018-10-14 18:16:47,470 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=440, Invalid=1366, Unknown=0, NotChecked=0, Total=1806 [2018-10-14 18:16:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-10-14 18:16:47,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 77. [2018-10-14 18:16:47,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-10-14 18:16:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-10-14 18:16:47,486 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 63 [2018-10-14 18:16:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:47,487 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-10-14 18:16:47,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-14 18:16:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-10-14 18:16:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-14 18:16:47,491 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:47,491 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:16:47,491 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:47,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:47,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1791037853, now seen corresponding path program 3 times [2018-10-14 18:16:47,496 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:48,185 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:48,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-14 18:16:48,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-14 18:16:48,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-14 18:16:48,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2018-10-14 18:16:48,186 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 24 states. [2018-10-14 18:16:50,225 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-14 18:16:50,487 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-14 18:16:50,816 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2018-10-14 18:16:51,049 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2018-10-14 18:16:51,320 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2018-10-14 18:16:52,218 WARN L179 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2018-10-14 18:16:52,384 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-14 18:16:52,615 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-14 18:16:52,899 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2018-10-14 18:16:53,166 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-14 18:16:53,383 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2018-10-14 18:16:53,943 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2018-10-14 18:16:54,189 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-10-14 18:16:54,387 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-14 18:16:54,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:54,395 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-14 18:16:54,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-14 18:16:54,396 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 76 [2018-10-14 18:16:54,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:54,397 INFO L225 Difference]: With dead ends: 86 [2018-10-14 18:16:54,397 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 18:16:54,400 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=736, Invalid=2020, Unknown=0, NotChecked=0, Total=2756 [2018-10-14 18:16:54,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 18:16:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 18:16:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 18:16:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 18:16:54,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2018-10-14 18:16:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:54,401 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 18:16:54,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-14 18:16:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 18:16:54,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 18:16:54,405 INFO L202 PluginConnector]: Adding new model cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:16:54 BasicIcfg [2018-10-14 18:16:54,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 18:16:54,406 INFO L168 Benchmark]: Toolchain (without parser) took 27015.19 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 998.8 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -123.9 MB). Peak memory consumption was 874.9 MB. Max. memory is 7.1 GB. [2018-10-14 18:16:54,408 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:16:54,408 INFO L168 Benchmark]: Boogie Preprocessor took 55.67 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:16:54,409 INFO L168 Benchmark]: RCFGBuilder took 627.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-14 18:16:54,410 INFO L168 Benchmark]: IcfgTransformer took 5614.49 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 261.6 MB). Free memory was 1.4 GB in the beginning and 983.4 MB in the end (delta: 460.0 MB). Peak memory consumption was 721.6 MB. Max. memory is 7.1 GB. [2018-10-14 18:16:54,411 INFO L168 Benchmark]: TraceAbstraction took 20711.40 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 737.1 MB). Free memory was 983.4 MB in the beginning and 1.6 GB in the end (delta: -605.0 MB). Peak memory consumption was 132.1 MB. Max. memory is 7.1 GB. [2018-10-14 18:16:54,415 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.67 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 627.04 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 5614.49 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 261.6 MB). Free memory was 1.4 GB in the beginning and 983.4 MB in the end (delta: 460.0 MB). Peak memory consumption was 721.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20711.40 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 737.1 MB). Free memory was 983.4 MB in the beginning and 1.6 GB in the end (delta: -605.0 MB). Peak memory consumption was 132.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 48 LocStat_MAX_WEQGRAPH_SIZE : 7 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 1073 LocStat_NO_SUPPORTING_DISEQUALITIES : 131 LocStat_NO_DISJUNCTIONS : -96 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 50 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 50 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 4130.26 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 77 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 50 different actions 75 times. Merged at 15 different actions 23 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 4 COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 2 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 2 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. SAFE Result, 20.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 15.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 143 SDtfs, 1886 SDslu, 1254 SDs, 0 SdLazy, 1481 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 16.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=3, 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, 4 MinimizatonAttempts, 33 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 181290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-14_18-16-54-431.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-14_18-16-54-431.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-14_18-16-54-431.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...