java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 23:00:38,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 23:00:38,389 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 23:00:38,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 23:00:38,408 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 23:00:38,410 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 23:00:38,411 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 23:00:38,413 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 23:00:38,416 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 23:00:38,418 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 23:00:38,419 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 23:00:38,421 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 23:00:38,423 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 23:00:38,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 23:00:38,425 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 23:00:38,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 23:00:38,429 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 23:00:38,439 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 23:00:38,441 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 23:00:38,446 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 23:00:38,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 23:00:38,450 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 23:00:38,456 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 23:00:38,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 23:00:38,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 23:00:38,457 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 23:00:38,458 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 23:00:38,459 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 23:00:38,462 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 23:00:38,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 23:00:38,464 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 23:00:38,464 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 23:00:38,469 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 23:00:38,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 23:00:38,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 23:00:38,482 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 23:00:38,482 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 23:00:38,483 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 23:00:38,483 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 23:00:38,484 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 23:00:38,484 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 23:00:38,484 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 23:00:38,484 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 23:00:38,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 23:00:38,485 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 23:00:38,485 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 23:00:38,486 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 23:00:38,486 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 23:00:38,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 23:00:38,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 23:00:38,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 23:00:38,580 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 23:00:38,581 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 23:00:38,582 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl [2018-10-12 23:00:38,582 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl' [2018-10-12 23:00:38,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 23:00:38,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 23:00:38,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 23:00:38,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 23:00:38,685 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 23:00:38,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... [2018-10-12 23:00:38,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... [2018-10-12 23:00:38,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... [2018-10-12 23:00:38,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... [2018-10-12 23:00:38,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... [2018-10-12 23:00:38,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... [2018-10-12 23:00:38,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... [2018-10-12 23:00:38,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 23:00:38,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 23:00:38,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 23:00:38,771 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 23:00:38,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 23:00:38,836 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 23:00:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 23:00:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 23:00:39,552 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 23:00:39,553 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:00:39 BoogieIcfgContainer [2018-10-12 23:00:39,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 23:00:39,554 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 23:00:39,554 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 23:00:39,555 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 23:00:39,558 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:00:39" (1/1) ... [2018-10-12 23:00:39,565 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 23:00:39,566 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 23:00:39,612 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 23:00:39,677 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 23:00:39,693 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 23:00:39,768 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 23:01:53,090 INFO L315 AbstractInterpreter]: Visited 102 different actions 150 times. Merged at 41 different actions 47 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 23:01:53,092 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 23:01:53,097 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 23:01:53,283 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select (select |#loc_#memory_int_(Array-Int-(Array-Int-#locsort2))| |v_ULTIMATE.start_read~int_#ptr.base_19|) |v_ULTIMATE.start_read~int_#ptr.offset_13|) at (assume read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-12 23:01:53,602 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_13|) |v_ULTIMATE.start_read~int_#ptr.offset_9|) at (assume read~int_#value == #memory_int[read~int_#ptr.base][read~int_#ptr.offset];) [2018-10-12 23:01:53,820 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select (select |#loc_#memory_int_(Array-Int-(Array-Int-#locsort2))| |v_ULTIMATE.start_read~int_#ptr.base_6|) |v_ULTIMATE.start_read~int_#ptr.offset_4|) at (assume #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-12 23:01:53,822 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 23:01:53,822 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 23:01:53,823 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 23:01:53,823 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 23:01:53,823 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 23:01:53,823 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 23:01:53,823 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 23:01:53,824 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 23:01:53,824 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 23:01:53,824 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 23:01:53,824 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 23:01:53,824 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 23:01:53,825 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 23:01:53,825 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 23:01:53,825 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 23:01:53,827 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 23:01:53,853 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 11:01:53 BasicIcfg [2018-10-12 23:01:53,853 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 23:01:53,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 23:01:53,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 23:01:53,858 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 23:01:53,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 11:00:38" (1/3) ... [2018-10-12 23:01:53,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c635125 and model type openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:01:53, skipping insertion in model container [2018-10-12 23:01:53,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:00:39" (2/3) ... [2018-10-12 23:01:53,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c635125 and model type openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:01:53, skipping insertion in model container [2018-10-12 23:01:53,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 11:01:53" (3/3) ... [2018-10-12 23:01:53,862 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 23:01:53,872 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 23:01:53,881 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 23:01:53,899 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 23:01:53,924 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 23:01:53,926 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 23:01:53,926 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 23:01:53,926 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 23:01:53,928 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 23:01:53,928 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 23:01:53,928 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 23:01:53,928 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 23:01:53,928 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 23:01:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-12 23:01:53,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-12 23:01:53,951 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:01:53,953 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:01:53,954 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:01:53,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:01:53,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1865541245, now seen corresponding path program 1 times [2018-10-12 23:01:54,020 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:01:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:01:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:01:54,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 23:01:54,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 23:01:54,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 23:01:55,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 23:01:55,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-12 23:01:55,115 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 12 states. [2018-10-12 23:01:55,697 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-12 23:01:56,074 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-12 23:01:56,483 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-12 23:01:57,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:01:57,038 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-10-12 23:01:57,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-12 23:01:57,044 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2018-10-12 23:01:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:01:57,057 INFO L225 Difference]: With dead ends: 125 [2018-10-12 23:01:57,058 INFO L226 Difference]: Without dead ends: 125 [2018-10-12 23:01:57,060 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-12 23:01:57,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-10-12 23:01:57,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 113. [2018-10-12 23:01:57,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-12 23:01:57,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-12 23:01:57,107 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 73 [2018-10-12 23:01:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:01:57,108 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-12 23:01:57,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 23:01:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-12 23:01:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-12 23:01:57,112 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:01:57,112 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:01:57,113 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:01:57,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:01:57,113 INFO L82 PathProgramCache]: Analyzing trace with hash 467249084, now seen corresponding path program 1 times [2018-10-12 23:01:57,114 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:01:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:01:57,713 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2018-10-12 23:01:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:01:58,673 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 23:01:58,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-12 23:01:58,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-12 23:01:58,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-12 23:01:58,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2018-10-12 23:01:58,676 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 28 states. [2018-10-12 23:02:00,030 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-10-12 23:02:00,534 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2018-10-12 23:02:00,776 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2018-10-12 23:02:01,041 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2018-10-12 23:02:01,194 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-12 23:02:01,433 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2018-10-12 23:02:01,757 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-10-12 23:02:02,131 WARN L178 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-12 23:02:02,425 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2018-10-12 23:02:02,721 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2018-10-12 23:02:04,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:02:04,573 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-10-12 23:02:04,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-12 23:02:04,578 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 112 [2018-10-12 23:02:04,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:02:04,586 INFO L225 Difference]: With dead ends: 164 [2018-10-12 23:02:04,586 INFO L226 Difference]: Without dead ends: 164 [2018-10-12 23:02:04,588 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=672, Invalid=2520, Unknown=0, NotChecked=0, Total=3192 [2018-10-12 23:02:04,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-10-12 23:02:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2018-10-12 23:02:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-10-12 23:02:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-10-12 23:02:04,619 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 112 [2018-10-12 23:02:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:02:04,620 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-10-12 23:02:04,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-12 23:02:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-10-12 23:02:04,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-12 23:02:04,626 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:02:04,627 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:02:04,627 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:02:04,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:02:04,627 INFO L82 PathProgramCache]: Analyzing trace with hash 340331933, now seen corresponding path program 2 times [2018-10-12 23:02:04,631 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:02:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:02:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 23:02:06,916 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 23:02:06,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 23:02:06,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 23:02:06,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 23:02:06,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1313, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 23:02:06,918 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 38 states. [2018-10-12 23:02:08,758 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-12 23:02:09,078 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 23:02:09,393 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 23:02:09,768 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 23:02:10,022 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-12 23:02:10,262 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-12 23:02:10,570 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-12 23:02:10,849 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 23:02:11,418 WARN L178 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 97 [2018-10-12 23:02:11,893 WARN L178 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2018-10-12 23:02:12,442 WARN L178 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2018-10-12 23:02:12,695 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-12 23:02:12,948 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2018-10-12 23:02:13,227 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2018-10-12 23:02:13,781 WARN L178 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 113 [2018-10-12 23:02:14,236 WARN L178 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2018-10-12 23:02:14,719 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2018-10-12 23:02:15,280 WARN L178 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2018-10-12 23:02:15,462 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-12 23:02:15,678 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-12 23:02:15,902 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-12 23:02:16,106 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 23:02:16,405 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-12 23:02:16,643 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-12 23:02:16,948 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-10-12 23:02:17,221 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-10-12 23:02:17,637 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-12 23:02:18,010 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 23:02:18,313 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-12 23:02:18,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:02:18,450 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-10-12 23:02:18,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-10-12 23:02:18,451 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 151 [2018-10-12 23:02:18,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:02:18,454 INFO L225 Difference]: With dead ends: 203 [2018-10-12 23:02:18,454 INFO L226 Difference]: Without dead ends: 203 [2018-10-12 23:02:18,457 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1121, Invalid=5199, Unknown=0, NotChecked=0, Total=6320 [2018-10-12 23:02:18,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-10-12 23:02:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 191. [2018-10-12 23:02:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-10-12 23:02:18,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2018-10-12 23:02:18,470 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 151 [2018-10-12 23:02:18,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:02:18,470 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2018-10-12 23:02:18,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 23:02:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2018-10-12 23:02:18,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-12 23:02:18,474 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 23:02:18,474 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 23:02:18,475 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 23:02:18,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 23:02:18,475 INFO L82 PathProgramCache]: Analyzing trace with hash -296567652, now seen corresponding path program 3 times [2018-10-12 23:02:18,476 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 23:02:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 23:02:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-12 23:02:20,737 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 23:02:20,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 23:02:20,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 23:02:20,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 23:02:20,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1307, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 23:02:20,739 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand 38 states. [2018-10-12 23:02:22,505 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-12 23:02:23,275 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-10-12 23:02:23,627 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2018-10-12 23:02:24,011 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 113 [2018-10-12 23:02:24,413 WARN L178 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2018-10-12 23:02:24,946 WARN L178 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2018-10-12 23:02:25,614 WARN L178 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 127 [2018-10-12 23:02:26,278 WARN L178 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 130 [2018-10-12 23:02:26,921 WARN L178 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 133 [2018-10-12 23:02:27,601 WARN L178 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2018-10-12 23:02:28,245 WARN L178 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 132 [2018-10-12 23:02:28,409 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-12 23:02:28,741 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-12 23:02:29,089 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-10-12 23:02:29,348 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 23:02:29,554 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2018-10-12 23:02:30,181 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-10-12 23:02:30,575 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2018-10-12 23:02:30,882 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2018-10-12 23:02:31,257 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119 [2018-10-12 23:02:31,682 WARN L178 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2018-10-12 23:02:32,239 WARN L178 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 126 [2018-10-12 23:02:32,947 WARN L178 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 131 [2018-10-12 23:02:33,583 WARN L178 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 134 [2018-10-12 23:02:34,274 WARN L178 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2018-10-12 23:02:34,904 WARN L178 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 134 [2018-10-12 23:02:35,083 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2018-10-12 23:02:35,256 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 23:02:35,481 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-12 23:02:35,694 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-12 23:02:36,203 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-12 23:02:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:02:36,241 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-10-12 23:02:36,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-10-12 23:02:36,242 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 190 [2018-10-12 23:02:36,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:02:36,243 INFO L225 Difference]: With dead ends: 189 [2018-10-12 23:02:36,243 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 23:02:36,245 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=1556, Invalid=5926, Unknown=0, NotChecked=0, Total=7482 [2018-10-12 23:02:36,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 23:02:36,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 23:02:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 23:02:36,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 23:02:36,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2018-10-12 23:02:36,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:02:36,246 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 23:02:36,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 23:02:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 23:02:36,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 23:02:36,250 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:02:36 BasicIcfg [2018-10-12 23:02:36,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 23:02:36,251 INFO L168 Benchmark]: Toolchain (without parser) took 117568.54 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: -1.9 GB). Peak memory consumption was 291.3 MB. Max. memory is 7.1 GB. [2018-10-12 23:02:36,252 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:02:36,252 INFO L168 Benchmark]: Boogie Preprocessor took 81.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:02:36,253 INFO L168 Benchmark]: RCFGBuilder took 782.61 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-12 23:02:36,254 INFO L168 Benchmark]: IcfgTransformer took 74299.27 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-12 23:02:36,255 INFO L168 Benchmark]: TraceAbstraction took 42396.11 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 308.8 MB). Free memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: -1.2 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:02:36,258 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 0.23 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 81.66 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 782.61 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * IcfgTransformer took 74299.27 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * TraceAbstraction took 42396.11 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 308.8 MB). Free memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: -1.2 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 100 LocStat_MAX_WEQGRAPH_SIZE : 12 LocStat_MAX_SIZEOF_WEQEDGELABEL : 6 LocStat_NO_SUPPORTING_EQUALITIES : 3593 LocStat_NO_SUPPORTING_DISEQUALITIES : 845 LocStat_NO_DISJUNCTIONS : -200 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 102 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 100 TransStat_NO_SUPPORTING_DISEQUALITIES : 5 TransStat_NO_DISJUNCTIONS : 102 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 60004.48 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 152 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 102 different actions 150 times. Merged at 41 different actions 47 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 6 COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 3 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 3 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 178]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 102 locations, 1 error locations. SAFE Result, 42.3s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 35.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 305 SDtfs, 5229 SDslu, 3893 SDs, 0 SdLazy, 4301 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2494 ImplicationChecksByTransitivity, 33.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 526 NumberOfCodeBlocks, 526 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 1323351 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 15/234 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_23-02-36-273.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_23-02-36-273.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_23-02-36-273.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...