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/count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 16:30:18,812 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 16:30:18,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 16:30:18,832 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 16:30:18,832 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 16:30:18,833 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 16:30:18,835 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 16:30:18,836 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 16:30:18,838 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 16:30:18,839 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 16:30:18,840 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 16:30:18,840 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 16:30:18,841 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 16:30:18,842 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 16:30:18,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 16:30:18,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 16:30:18,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 16:30:18,847 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 16:30:18,849 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 16:30:18,850 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 16:30:18,851 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 16:30:18,853 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 16:30:18,855 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 16:30:18,855 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 16:30:18,856 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 16:30:18,857 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 16:30:18,858 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 16:30:18,858 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 16:30:18,859 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 16:30:18,860 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 16:30:18,860 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 16:30:18,861 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 16:30:18,861 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 16:30:18,862 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 16:30:18,862 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 16:30:18,863 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 16:30:18,863 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 16:30:18,876 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 16:30:18,876 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 16:30:18,877 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 16:30:18,877 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 16:30:18,877 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 16:30:18,877 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 16:30:18,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 16:30:18,878 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 16:30:18,878 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 16:30:18,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 16:30:18,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 16:30:18,879 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 16:30:18,879 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 16:30:18,880 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 16:30:18,880 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 16:30:18,932 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 16:30:18,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 16:30:18,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 16:30:18,950 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 16:30:18,950 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 16:30:18,951 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl [2018-10-10 16:30:18,952 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl' [2018-10-10 16:30:19,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 16:30:19,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-10 16:30:19,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 16:30:19,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 16:30:19,016 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 16:30:19,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 16:30:19,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 16:30:19,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 16:30:19,086 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 16:30:19,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (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 [2018-10-10 16:30:19,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 16:30:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 16:30:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 16:30:19,747 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 16:30:19,749 INFO L202 PluginConnector]: Adding new model count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:30:19 BoogieIcfgContainer [2018-10-10 16:30:19,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 16:30:19,750 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-10 16:30:19,750 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-10 16:30:19,751 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-10 16:30:19,755 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:30:19" (1/1) ... [2018-10-10 16:30:19,763 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-10 16:30:19,763 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-10 16:30:19,800 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-10 16:30:19,836 INFO L217 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-10 16:30:19,851 INFO L280 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-10 16:30:19,919 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-10 16:30:22,346 INFO L315 AbstractInterpreter]: Visited 45 different actions 83 times. Merged at 18 different actions 36 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-10 16:30:22,349 INFO L304 apSepIcfgTransformer]: finished equality analysis [2018-10-10 16:30:22,353 INFO L316 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-10 16:30:22,398 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_7|) at (assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base := write~int_old_#memory_int[write~int_#ptr.base][write~int_#ptr.offset := write~int_#value]];) [2018-10-10 16:30:22,401 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-10 16:30:22,402 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:30:22,402 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:30:22,402 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-10 16:30:22,402 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:30:22,403 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:30:22,403 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-10 16:30:22,403 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-10 16:30:22,403 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:30:22,403 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:30:22,404 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-10 16:30:22,404 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:30:22,404 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:30:22,404 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-10 16:30:22,404 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-10 16:30:22,406 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-10 16:30:22,419 INFO L202 PluginConnector]: Adding new model count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:30:22 BasicIcfg [2018-10-10 16:30:22,419 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-10 16:30:22,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 16:30:22,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 16:30:22,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 16:30:22,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:30:19" (1/3) ... [2018-10-10 16:30:22,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766ae719 and model type count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 04:30:22, skipping insertion in model container [2018-10-10 16:30:22,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:30:19" (2/3) ... [2018-10-10 16:30:22,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766ae719 and model type count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:30:22, skipping insertion in model container [2018-10-10 16:30:22,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:30:22" (3/3) ... [2018-10-10 16:30:22,430 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-10 16:30:22,443 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 16:30:22,452 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 16:30:22,470 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 16:30:22,499 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 16:30:22,501 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 16:30:22,501 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 16:30:22,501 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 16:30:22,502 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 16:30:22,502 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 16:30:22,504 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 16:30:22,504 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 16:30:22,504 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 16:30:22,525 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-10-10 16:30:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-10 16:30:22,537 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:22,539 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] [2018-10-10 16:30:22,540 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:22,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:22,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1453401439, now seen corresponding path program 1 times [2018-10-10 16:30:22,616 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:23,528 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2018-10-10 16:30:23,669 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 16:30:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:30:23,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 16:30:23,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 16:30:23,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 16:30:23,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 16:30:23,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-10 16:30:23,796 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 10 states. [2018-10-10 16:30:24,387 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-10 16:30:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:24,624 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-10-10 16:30:24,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 16:30:24,626 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-10-10 16:30:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:24,637 INFO L225 Difference]: With dead ends: 58 [2018-10-10 16:30:24,637 INFO L226 Difference]: Without dead ends: 58 [2018-10-10 16:30:24,639 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2018-10-10 16:30:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-10-10 16:30:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2018-10-10 16:30:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-10 16:30:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-10-10 16:30:24,747 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 35 [2018-10-10 16:30:24,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:24,747 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-10-10 16:30:24,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 16:30:24,748 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-10-10 16:30:24,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-10 16:30:24,752 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:24,752 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 16:30:24,752 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:24,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:24,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1626938889, now seen corresponding path program 1 times [2018-10-10 16:30:24,754 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:25,242 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-10-10 16:30:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:30:25,393 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:30:25,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-10 16:30:25,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 16:30:25,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 16:30:25,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-10-10 16:30:25,396 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2018-10-10 16:30:26,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:26,393 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-10-10 16:30:26,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 16:30:26,394 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2018-10-10 16:30:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:26,399 INFO L225 Difference]: With dead ends: 82 [2018-10-10 16:30:26,399 INFO L226 Difference]: Without dead ends: 82 [2018-10-10 16:30:26,400 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2018-10-10 16:30:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-10-10 16:30:26,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 68. [2018-10-10 16:30:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-10-10 16:30:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-10-10 16:30:26,415 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 51 [2018-10-10 16:30:26,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:26,415 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-10-10 16:30:26,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 16:30:26,416 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-10-10 16:30:26,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-10 16:30:26,420 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:30:26,421 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-10 16:30:26,421 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:30:26,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:30:26,422 INFO L82 PathProgramCache]: Analyzing trace with hash -47283533, now seen corresponding path program 2 times [2018-10-10 16:30:26,425 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:30:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:30:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-10 16:30:26,957 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:30:26,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-10 16:30:26,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 16:30:26,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 16:30:26,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-10-10 16:30:26,959 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 13 states. [2018-10-10 16:30:27,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:30:27,794 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-10-10 16:30:27,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-10 16:30:27,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2018-10-10 16:30:27,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:30:27,795 INFO L225 Difference]: With dead ends: 66 [2018-10-10 16:30:27,795 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 16:30:27,796 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=230, Invalid=472, Unknown=0, NotChecked=0, Total=702 [2018-10-10 16:30:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 16:30:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 16:30:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 16:30:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 16:30:27,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2018-10-10 16:30:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:30:27,797 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 16:30:27,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 16:30:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 16:30:27,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 16:30:27,802 INFO L202 PluginConnector]: Adding new model count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:30:27 BasicIcfg [2018-10-10 16:30:27,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 16:30:27,803 INFO L168 Benchmark]: Toolchain (without parser) took 8789.90 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.8 MB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -626.8 MB). Peak memory consumption was 200.0 MB. Max. memory is 7.1 GB. [2018-10-10 16:30:27,804 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. [2018-10-10 16:30:27,805 INFO L168 Benchmark]: Boogie Preprocessor took 69.30 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. [2018-10-10 16:30:27,805 INFO L168 Benchmark]: RCFGBuilder took 663.87 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. [2018-10-10 16:30:27,806 INFO L168 Benchmark]: IcfgTransformer took 2669.44 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 67.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.8 MB). Peak memory consumption was 155.5 MB. Max. memory is 7.1 GB. [2018-10-10 16:30:27,808 INFO L168 Benchmark]: TraceAbstraction took 5381.94 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 759.2 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -735.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2018-10-10 16:30:27,812 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 69.30 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 663.87 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 2669.44 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 67.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.8 MB). Peak memory consumption was 155.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5381.94 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 759.2 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -735.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 43 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 623 LocStat_NO_SUPPORTING_DISEQUALITIES : 54 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 : 39 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 46 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 1556.17 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 85 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 45 different actions 83 times. Merged at 18 different actions 36 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 : 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: 95]: 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, 5.3s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 701 SDslu, 490 SDs, 0 SdLazy, 347 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 76192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 18/43 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/count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-10_16-30-27-829.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-10_16-30-27-829.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-10_16-30-27-829.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...