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/20170304-DifficultPathPrograms/mcmillan2006.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 15:32:33,851 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 15:32:33,853 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 15:32:33,865 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 15:32:33,866 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 15:32:33,867 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 15:32:33,868 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 15:32:33,870 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 15:32:33,871 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 15:32:33,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 15:32:33,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 15:32:33,889 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-15 15:32:33,889 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-15 15:32:33,890 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-15 15:32:33,892 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-15 15:32:33,893 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-15 15:32:33,897 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-15 15:32:33,898 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-15 15:32:33,898 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-15 15:32:33,899 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-15 15:32:33,901 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-15 15:32:33,910 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 15:32:33,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 15:32:33,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 15:32:33,912 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 15:32:33,912 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 15:32:33,912 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 15:32:33,913 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 15:32:33,913 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 15:32:33,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 15:32:33,913 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 15:32:33,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 15:32:33,914 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 15:32:33,914 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 15:32:33,915 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 15:32:33,915 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 15:32:33,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 15:32:33,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 15:32:33,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 15:32:33,991 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 15:32:33,992 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 15:32:33,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/mcmillan2006.c.i_3.bpl [2018-10-15 15:32:33,993 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/mcmillan2006.c.i_3.bpl' [2018-10-15 15:32:34,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 15:32:34,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 15:32:34,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 15:32:34,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 15:32:34,061 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 15:32:34,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 15:32:34,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 15:32:34,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 15:32:34,115 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 15:32:34,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (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 [2018-10-15 15:32:34,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 15:32:34,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 15:32:34,611 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 15:32:34,612 INFO L202 PluginConnector]: Adding new model mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:32:34 BoogieIcfgContainer [2018-10-15 15:32:34,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 15:32:34,612 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 15:32:34,613 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 15:32:34,614 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 15:32:34,618 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:32:34" (1/1) ... [2018-10-15 15:32:34,627 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-15 15:32:34,627 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-15 15:32:34,664 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-15 15:32:34,708 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-15 15:32:34,723 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-15 15:32:34,806 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-15 15:32:37,777 INFO L315 AbstractInterpreter]: Visited 45 different actions 93 times. Merged at 23 different actions 46 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-15 15:32:37,779 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-15 15:32:37,784 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-15 15:32:37,796 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |#loc_#memory_int_(Array-Int-#locsort1)| |v_ULTIMATE.start_read~int_#ptr.base_2|) at (assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];) [2018-10-15 15:32:37,798 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_2|) |v_ULTIMATE.start_read~int_#ptr.offset_2|) at (assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];) [2018-10-15 15:32:37,830 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |v_#locv_ULTIMATE.start_write~int_old_#memory_int_2_1_1| |v_ULTIMATE.start_write~int_#ptr.base_2|) at (assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];) [2018-10-15 15:32:37,832 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-15 15:32:37,832 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-15 15:32:37,833 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-15 15:32:37,833 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 15:32:37,833 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 15:32:37,833 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-15 15:32:37,833 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 15:32:37,834 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 15:32:37,834 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-15 15:32:37,834 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-15 15:32:37,834 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 15:32:37,834 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 15:32:37,835 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-15 15:32:37,835 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 15:32:37,837 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 15:32:37,839 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-15 15:32:37,860 INFO L202 PluginConnector]: Adding new model mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:32:37 BasicIcfg [2018-10-15 15:32:37,861 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 15:32:37,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 15:32:37,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 15:32:37,866 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 15:32:37,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:34" (1/3) ... [2018-10-15 15:32:37,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0d9dca and model type mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:32:37, skipping insertion in model container [2018-10-15 15:32:37,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:32:34" (2/3) ... [2018-10-15 15:32:37,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0d9dca and model type mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:32:37, skipping insertion in model container [2018-10-15 15:32:37,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:32:37" (3/3) ... [2018-10-15 15:32:37,871 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-15 15:32:37,882 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 15:32:37,892 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 15:32:37,910 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 15:32:37,939 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 15:32:37,940 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 15:32:37,940 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 15:32:37,940 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 15:32:37,941 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 15:32:37,941 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 15:32:37,941 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 15:32:37,941 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 15:32:37,942 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 15:32:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-10-15 15:32:37,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-15 15:32:37,970 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:32:37,972 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] [2018-10-15 15:32:37,973 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:32:37,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:32:37,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1269554658, now seen corresponding path program 1 times [2018-10-15 15:32:38,052 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:32:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:32:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:32:38,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:32:38,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 15:32:38,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 15:32:38,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 15:32:38,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-15 15:32:38,532 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2018-10-15 15:32:38,919 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-15 15:32:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:32:39,018 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-10-15 15:32:39,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 15:32:39,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-10-15 15:32:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:32:39,030 INFO L225 Difference]: With dead ends: 54 [2018-10-15 15:32:39,030 INFO L226 Difference]: Without dead ends: 51 [2018-10-15 15:32:39,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-15 15:32:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-15 15:32:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2018-10-15 15:32:39,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-15 15:32:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-10-15 15:32:39,141 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 35 [2018-10-15 15:32:39,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:32:39,142 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-10-15 15:32:39,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 15:32:39,142 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-10-15 15:32:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-15 15:32:39,146 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:32:39,146 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-15 15:32:39,147 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:32:39,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:32:39,147 INFO L82 PathProgramCache]: Analyzing trace with hash -503344914, now seen corresponding path program 1 times [2018-10-15 15:32:39,148 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:32:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:32:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:32:39,974 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:32:39,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 15:32:39,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 15:32:39,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 15:32:39,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-15 15:32:39,979 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 14 states. [2018-10-15 15:32:40,267 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-15 15:32:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:32:41,601 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-10-15 15:32:41,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-15 15:32:41,602 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-10-15 15:32:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:32:41,603 INFO L225 Difference]: With dead ends: 64 [2018-10-15 15:32:41,603 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 15:32:41,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=303, Invalid=753, Unknown=0, NotChecked=0, Total=1056 [2018-10-15 15:32:41,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 15:32:41,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 15:32:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 15:32:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 15:32:41,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-10-15 15:32:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:32:41,606 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 15:32:41,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 15:32:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 15:32:41,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 15:32:41,610 INFO L202 PluginConnector]: Adding new model mcmillan2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:32:41 BasicIcfg [2018-10-15 15:32:41,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 15:32:41,611 INFO L168 Benchmark]: Toolchain (without parser) took 7552.34 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.8 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -734.4 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. [2018-10-15 15:32:41,613 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-10-15 15:32:41,613 INFO L168 Benchmark]: Boogie Preprocessor took 52.55 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. [2018-10-15 15:32:41,614 INFO L168 Benchmark]: RCFGBuilder took 497.96 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. [2018-10-15 15:32:41,615 INFO L168 Benchmark]: IcfgTransformer took 3248.42 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 76.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 312.2 MB). Peak memory consumption was 388.2 MB. Max. memory is 7.1 GB. [2018-10-15 15:32:41,616 INFO L168 Benchmark]: TraceAbstraction took 3748.95 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 760.7 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. [2018-10-15 15:32:41,620 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 0.22 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 52.55 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 497.96 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 3248.42 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 76.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 312.2 MB). Peak memory consumption was 388.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3748.95 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 760.7 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 : 43 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 599 LocStat_NO_SUPPORTING_DISEQUALITIES : 62 LocStat_NO_DISJUNCTIONS : -86 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 45 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 40 TransStat_NO_SUPPORTING_DISEQUALITIES : 1 TransStat_NO_DISJUNCTIONS : 44 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 1806.70 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 93 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 45 different actions 93 times. Merged at 23 different actions 46 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] : 2 COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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, 45 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 70 SDtfs, 235 SDslu, 291 SDs, 0 SdLazy, 137 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 11658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/mcmillan2006.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_15-32-41-637.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/mcmillan2006.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-15_15-32-41-637.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/mcmillan2006.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-15_15-32-41-637.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...