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_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 22:57:43,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 22:57:43,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 22:57:43,607 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 22:57:43,608 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 22:57:43,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 22:57:43,610 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 22:57:43,612 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 22:57:43,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 22:57:43,614 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 22:57:43,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 22:57:43,616 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 22:57:43,617 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 22:57:43,617 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 22:57:43,619 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 22:57:43,619 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 22:57:43,620 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 22:57:43,622 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 22:57:43,624 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 22:57:43,625 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 22:57:43,626 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 22:57:43,627 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 22:57:43,630 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 22:57:43,630 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 22:57:43,630 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 22:57:43,633 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 22:57:43,634 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 22:57:43,637 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 22:57:43,638 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 22:57:43,639 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 22:57:43,639 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 22:57:43,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-12 22:57:43,642 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 22:57:43,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 22:57:43,645 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 22:57:43,645 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 22:57:43,646 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 22:57:43,664 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 22:57:43,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 22:57:43,666 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 22:57:43,666 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 22:57:43,666 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 22:57:43,666 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 22:57:43,668 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 22:57:43,668 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 22:57:43,668 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 22:57:43,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 22:57:43,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 22:57:43,669 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 22:57:43,670 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 22:57:43,671 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 22:57:43,671 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 22:57:43,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 22:57:43,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 22:57:43,755 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 22:57:43,756 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 22:57:43,757 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 22:57:43,758 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-12 22:57:43,758 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl' [2018-10-12 22:57:43,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 22:57:43,838 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 22:57:43,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 22:57:43,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 22:57:43,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 22:57:43,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... [2018-10-12 22:57:43,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... [2018-10-12 22:57:43,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... [2018-10-12 22:57:43,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... [2018-10-12 22:57:43,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... [2018-10-12 22:57:43,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... [2018-10-12 22:57:43,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... [2018-10-12 22:57:43,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 22:57:43,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 22:57:43,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 22:57:43,919 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 22:57:43,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 22:57:44,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 22:57:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 22:57:44,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 22:57:44,637 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 22:57:44,638 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:57:44 BoogieIcfgContainer [2018-10-12 22:57:44,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 22:57:44,641 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 22:57:44,641 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 22:57:44,642 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 22:57:44,646 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:57:44" (1/1) ... [2018-10-12 22:57:44,655 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 22:57:44,656 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 22:57:44,694 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 22:57:44,751 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 22:57:44,770 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 22:57:44,843 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 22:59:28,104 INFO L315 AbstractInterpreter]: Visited 95 different actions 156 times. Merged at 37 different actions 59 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 22:59:28,106 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 22:59:28,113 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 22:59:28,300 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 #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-12 22:59:28,562 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 22:59:28,788 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 22:59:29,009 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 22:59:29,010 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:59:29,010 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:59:29,010 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 22:59:29,010 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 22:59:29,010 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:59:29,011 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:59:29,011 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 22:59:29,011 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:59:29,011 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:59:29,011 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-12 22:59:29,011 INFO L248 HeapPartitionManager]: # location blocks :3 [2018-10-12 22:59:29,012 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:59:29,012 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:59:29,012 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 22:59:29,014 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 22:59:29,048 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:59:29 BasicIcfg [2018-10-12 22:59:29,049 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 22:59:29,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 22:59:29,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 22:59:29,054 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 22:59:29,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:43" (1/3) ... [2018-10-12 22:59:29,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155453ac and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:59:29, skipping insertion in model container [2018-10-12 22:59:29,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:57:44" (2/3) ... [2018-10-12 22:59:29,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155453ac and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:59:29, skipping insertion in model container [2018-10-12 22:59:29,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:59:29" (3/3) ... [2018-10-12 22:59:29,058 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 22:59:29,068 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 22:59:29,076 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 22:59:29,093 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 22:59:29,115 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 22:59:29,116 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 22:59:29,117 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 22:59:29,117 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 22:59:29,117 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 22:59:29,117 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 22:59:29,117 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 22:59:29,117 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 22:59:29,118 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 22:59:29,130 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-12 22:59:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-12 22:59:29,138 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:59:29,139 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] [2018-10-12 22:59:29,140 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:59:29,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:59:29,146 INFO L82 PathProgramCache]: Analyzing trace with hash 883006693, now seen corresponding path program 1 times [2018-10-12 22:59:29,202 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:59:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:59:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:59:30,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 22:59:30,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 22:59:30,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 22:59:30,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 22:59:30,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-12 22:59:30,419 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 12 states. [2018-10-12 22:59:31,042 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-12 22:59:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:59:31,669 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-10-12 22:59:31,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-12 22:59:31,676 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2018-10-12 22:59:31,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:59:31,689 INFO L225 Difference]: With dead ends: 118 [2018-10-12 22:59:31,690 INFO L226 Difference]: Without dead ends: 118 [2018-10-12 22:59:31,692 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-12 22:59:31,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-10-12 22:59:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2018-10-12 22:59:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-10-12 22:59:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-10-12 22:59:31,739 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 70 [2018-10-12 22:59:31,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:59:31,740 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-10-12 22:59:31,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 22:59:31,741 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-10-12 22:59:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-12 22:59:31,748 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:59:31,749 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] [2018-10-12 22:59:31,749 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:59:31,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:59:31,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1849040122, now seen corresponding path program 1 times [2018-10-12 22:59:31,751 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:59:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:59:33,207 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 22:59:33,208 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:59:33,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-12 22:59:33,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-12 22:59:33,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-12 22:59:33,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2018-10-12 22:59:33,211 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 28 states. [2018-10-12 22:59:34,972 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2018-10-12 22:59:35,247 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2018-10-12 22:59:35,523 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2018-10-12 22:59:35,745 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2018-10-12 22:59:36,009 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-10-12 22:59:36,387 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-12 22:59:36,725 WARN L178 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2018-10-12 22:59:37,108 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2018-10-12 22:59:37,412 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2018-10-12 22:59:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:59:39,306 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-12 22:59:39,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-12 22:59:39,307 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 105 [2018-10-12 22:59:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:59:39,312 INFO L225 Difference]: With dead ends: 153 [2018-10-12 22:59:39,312 INFO L226 Difference]: Without dead ends: 153 [2018-10-12 22:59:39,314 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 22:59:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-10-12 22:59:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2018-10-12 22:59:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-10-12 22:59:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-10-12 22:59:39,326 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 105 [2018-10-12 22:59:39,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:59:39,327 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-10-12 22:59:39,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-12 22:59:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-10-12 22:59:39,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-12 22:59:39,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:59:39,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 22:59:39,333 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:59:39,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:59:39,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1367424197, now seen corresponding path program 2 times [2018-10-12 22:59:39,334 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:59:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:59:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:59:41,764 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:59:41,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 22:59:41,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 22:59:41,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 22:59:41,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1313, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 22:59:41,767 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 38 states. [2018-10-12 22:59:44,190 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-12 22:59:44,498 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 22:59:44,803 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 22:59:45,091 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 22:59:45,352 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-12 22:59:45,555 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-12 22:59:45,841 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-12 22:59:46,047 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 22:59:46,619 WARN L178 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 97 [2018-10-12 22:59:47,096 WARN L178 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2018-10-12 22:59:47,567 WARN L178 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2018-10-12 22:59:47,835 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-12 22:59:48,119 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2018-10-12 22:59:48,444 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2018-10-12 22:59:48,960 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 113 [2018-10-12 22:59:49,449 WARN L178 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2018-10-12 22:59:49,951 WARN L178 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2018-10-12 22:59:50,481 WARN L178 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2018-10-12 22:59:50,662 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-12 22:59:50,886 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-12 22:59:51,297 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-12 22:59:51,518 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 22:59:51,852 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-12 22:59:52,091 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-12 22:59:52,398 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-10-12 22:59:52,882 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-10-12 22:59:53,050 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-12 22:59:53,325 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-12 22:59:53,739 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 22:59:54,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:59:54,089 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2018-10-12 22:59:54,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-10-12 22:59:54,090 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 140 [2018-10-12 22:59:54,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:59:54,093 INFO L225 Difference]: With dead ends: 188 [2018-10-12 22:59:54,093 INFO L226 Difference]: Without dead ends: 188 [2018-10-12 22:59:54,095 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=1121, Invalid=5199, Unknown=0, NotChecked=0, Total=6320 [2018-10-12 22:59:54,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-10-12 22:59:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2018-10-12 22:59:54,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-10-12 22:59:54,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-10-12 22:59:54,106 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 140 [2018-10-12 22:59:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:59:54,107 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-10-12 22:59:54,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 22:59:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-10-12 22:59:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-12 22:59:54,110 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:59:54,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 22:59:54,111 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:59:54,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:59:54,111 INFO L82 PathProgramCache]: Analyzing trace with hash -397709030, now seen corresponding path program 3 times [2018-10-12 22:59:54,112 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:59:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:59:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-12 22:59:56,207 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:59:56,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 22:59:56,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 22:59:56,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 22:59:56,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1307, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 22:59:56,209 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 38 states. [2018-10-12 22:59:58,016 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-12 22:59:58,740 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-10-12 22:59:59,049 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2018-10-12 22:59:59,429 WARN L178 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2018-10-12 22:59:59,749 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2018-10-12 23:00:00,129 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2018-10-12 23:00:00,533 WARN L178 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2018-10-12 23:00:00,996 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 113 [2018-10-12 23:00:01,419 WARN L178 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2018-10-12 23:00:01,901 WARN L178 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 118 [2018-10-12 23:00:02,332 WARN L178 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 115 [2018-10-12 23:00:03,178 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-12 23:00:03,633 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-12 23:00:04,121 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-10-12 23:00:04,458 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-12 23:00:04,844 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-12 23:00:05,227 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2018-10-12 23:00:05,535 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2018-10-12 23:00:06,114 WARN L178 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2018-10-12 23:00:06,640 WARN L178 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 118 [2018-10-12 23:00:07,124 WARN L178 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 121 [2018-10-12 23:00:07,600 WARN L178 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 123 [2018-10-12 23:00:08,032 WARN L178 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 120 [2018-10-12 23:00:08,219 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-10-12 23:00:08,566 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 23:00:09,264 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-12 23:00:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 23:00:09,270 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-10-12 23:00:09,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-10-12 23:00:09,271 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 175 [2018-10-12 23:00:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 23:00:09,272 INFO L225 Difference]: With dead ends: 174 [2018-10-12 23:00:09,272 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 23:00:09,276 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=1556, Invalid=5926, Unknown=0, NotChecked=0, Total=7482 [2018-10-12 23:00:09,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 23:00:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 23:00:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 23:00:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 23:00:09,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2018-10-12 23:00:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 23:00:09,277 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 23:00:09,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 23:00:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 23:00:09,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 23:00:09,282 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:00:09 BasicIcfg [2018-10-12 23:00:09,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 23:00:09,283 INFO L168 Benchmark]: Toolchain (without parser) took 145446.19 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 98.8 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-12 23:00:09,284 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 23:00:09,284 INFO L168 Benchmark]: Boogie Preprocessor took 79.44 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 23:00:09,285 INFO L168 Benchmark]: RCFGBuilder took 719.42 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 23:00:09,286 INFO L168 Benchmark]: IcfgTransformer took 104408.18 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 1.4 GB in the end (delta: -15.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-12 23:00:09,286 INFO L168 Benchmark]: TraceAbstraction took 40231.60 ms. Allocated memory was 3.5 GB in the beginning and 3.7 GB in the end (delta: 289.4 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 82.3 MB). Peak memory consumption was 371.8 MB. Max. memory is 7.1 GB. [2018-10-12 23:00:09,290 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.44 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 719.42 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 104408.18 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 1.4 GB in the end (delta: -15.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * TraceAbstraction took 40231.60 ms. Allocated memory was 3.5 GB in the beginning and 3.7 GB in the end (delta: 289.4 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 82.3 MB). Peak memory consumption was 371.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 93 LocStat_MAX_WEQGRAPH_SIZE : 12 LocStat_MAX_SIZEOF_WEQEDGELABEL : 8 LocStat_NO_SUPPORTING_EQUALITIES : 3310 LocStat_NO_SUPPORTING_DISEQUALITIES : 745 LocStat_NO_DISJUNCTIONS : -186 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 95 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 96 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 95 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 81991.28 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 158 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 95 different actions 156 times. Merged at 37 different actions 59 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: 167]: 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, 95 locations, 1 error locations. SAFE Result, 40.1s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 32.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 273 SDtfs, 4754 SDslu, 3407 SDs, 0 SdLazy, 4220 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2486 ImplicationChecksByTransitivity, 31.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred 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, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 1114262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 11/218 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_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_23-00-09-305.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_23-00-09-305.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_23-00-09-305.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...