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-b8f97f7-m [2018-10-10 16:39:46,726 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 16:39:46,728 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 16:39:46,746 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 16:39:46,747 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 16:39:46,749 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 16:39:46,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 16:39:46,753 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 16:39:46,756 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 16:39:46,757 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 16:39:46,758 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 16:39:46,758 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 16:39:46,759 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 16:39:46,760 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 16:39:46,761 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 16:39:46,762 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 16:39:46,763 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 16:39:46,765 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 16:39:46,767 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 16:39:46,769 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 16:39:46,770 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 16:39:46,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 16:39:46,774 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 16:39:46,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 16:39:46,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 16:39:46,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 16:39:46,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 16:39:46,778 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 16:39:46,779 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 16:39:46,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 16:39:46,783 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 16:39:46,784 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 16:39:46,784 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 16:39:46,785 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 16:39:46,786 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 16:39:46,787 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 16:39:46,788 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 16:39:46,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 16:39:46,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 16:39:46,809 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 16:39:46,809 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 16:39:46,809 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 16:39:46,810 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 16:39:46,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 16:39:46,811 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 16:39:46,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 16:39:46,812 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 16:39:46,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 16:39:46,812 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 16:39:46,812 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 16:39:46,813 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 16:39:46,813 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 16:39:46,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 16:39:46,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 16:39:46,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 16:39:46,909 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 16:39:46,910 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 16:39:46,911 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-10 16:39:46,911 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl' [2018-10-10 16:39:47,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 16:39:47,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-10 16:39:47,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 16:39:47,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 16:39:47,011 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 16:39:47,039 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 10.10 04:39:46" (1/1) ... [2018-10-10 16:39:47,042 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 10.10 04:39:46" (1/1) ... [2018-10-10 16:39:47,060 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 10.10 04:39:46" (1/1) ... [2018-10-10 16:39:47,061 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 10.10 04:39:46" (1/1) ... [2018-10-10 16:39:47,078 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 10.10 04:39:46" (1/1) ... [2018-10-10 16:39:47,081 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 10.10 04:39:46" (1/1) ... [2018-10-10 16:39:47,083 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 10.10 04:39:46" (1/1) ... [2018-10-10 16:39:47,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 16:39:47,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 16:39:47,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 16:39:47,091 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 16:39:47,092 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 10.10 04:39:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 16:39:47,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 16:39:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 16:39:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 16:39:47,856 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 16:39:47,856 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 10.10 04:39:47 BoogieIcfgContainer [2018-10-10 16:39:47,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 16:39:47,857 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-10 16:39:47,857 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-10 16:39:47,858 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-10 16:39:47,862 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 10.10 04:39:47" (1/1) ... [2018-10-10 16:39:47,871 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-10 16:39:47,871 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-10 16:39:47,915 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-10 16:39:47,960 INFO L217 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-10 16:39:47,976 INFO L280 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-10 16:39:48,046 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-10 16:40:48,007 INFO L315 AbstractInterpreter]: Visited 95 different actions 139 times. Merged at 37 different actions 43 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-10 16:40:48,012 INFO L304 apSepIcfgTransformer]: finished equality analysis [2018-10-10 16:40:48,018 INFO L316 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-10 16:40:48,077 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;) [2018-10-10 16:40:48,116 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];) [2018-10-10 16:40:48,156 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;) [2018-10-10 16:40:48,207 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |v_#locv_ULTIMATE.start_write~int_old_#memory_int_4_1_1| |v_ULTIMATE.start_write~int_#ptr.base_12|) at (assume write~int_old_#memory_int[write~int_#ptr.base := write~int_old_#memory_int[write~int_#ptr.base][write~int_#ptr.offset := write~int_#value]] == #memory_int;) [2018-10-10 16:40:48,262 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-10 16:40:48,263 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:40:48,264 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:40:48,264 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-10 16:40:48,264 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-10 16:40:48,264 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:40:48,264 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-10 16:40:48,264 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:40:48,265 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:40:48,265 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:40:48,265 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-10 16:40:48,265 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-10 16:40:48,266 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:40:48,266 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-10 16:40:48,266 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:40:48,267 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-10 16:40:48,301 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 10.10 04:40:48 BasicIcfg [2018-10-10 16:40:48,301 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-10 16:40:48,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 16:40:48,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 16:40:48,314 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 16:40:48,314 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 10.10 04:39:46" (1/3) ... [2018-10-10 16:40:48,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134ad50c and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 04:40:48, skipping insertion in model container [2018-10-10 16:40:48,315 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 10.10 04:39:47" (2/3) ... [2018-10-10 16:40:48,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134ad50c and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:40:48, skipping insertion in model container [2018-10-10 16:40:48,316 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 10.10 04:40:48" (3/3) ... [2018-10-10 16:40:48,319 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-10 16:40:48,328 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 16:40:48,335 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 16:40:48,350 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 16:40:48,374 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 16:40:48,375 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 16:40:48,375 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 16:40:48,376 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 16:40:48,376 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 16:40:48,377 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 16:40:48,377 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 16:40:48,377 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 16:40:48,377 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 16:40:48,396 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-10 16:40:48,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-10 16:40:48,403 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:40:48,404 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] [2018-10-10 16:40:48,405 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:40:48,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:40:48,410 INFO L82 PathProgramCache]: Analyzing trace with hash 883006693, now seen corresponding path program 1 times [2018-10-10 16:40:48,458 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:40:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:40:49,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:40:49,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 16:40:49,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 16:40:49,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 16:40:49,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 16:40:49,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-10 16:40:49,494 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 12 states. [2018-10-10 16:40:50,022 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-10 16:40:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:40:50,681 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-10-10 16:40:50,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 16:40:50,690 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2018-10-10 16:40:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:40:50,703 INFO L225 Difference]: With dead ends: 118 [2018-10-10 16:40:50,703 INFO L226 Difference]: Without dead ends: 118 [2018-10-10 16:40:50,705 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-10 16:40:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-10-10 16:40:50,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2018-10-10 16:40:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-10-10 16:40:50,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-10-10 16:40:50,756 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 70 [2018-10-10 16:40:50,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:40:50,757 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-10-10 16:40:50,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 16:40:50,758 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-10-10 16:40:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-10 16:40:50,761 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:40:50,761 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] [2018-10-10 16:40:50,762 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:40:50,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:40:50,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1849040122, now seen corresponding path program 1 times [2018-10-10 16:40:50,763 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:40:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:40:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:40:52,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:40:52,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-10 16:40:52,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-10 16:40:52,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-10 16:40:52,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-10-10 16:40:52,222 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 28 states. [2018-10-10 16:40:53,904 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2018-10-10 16:40:54,126 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-10 16:40:54,394 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-10-10 16:40:54,601 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-10 16:40:54,862 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-10 16:40:55,260 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-10-10 16:40:55,634 WARN L178 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-10 16:40:55,958 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-10 16:40:56,245 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-10 16:40:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:40:57,964 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-10 16:40:57,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-10 16:40:57,965 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 105 [2018-10-10 16:40:57,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:40:57,969 INFO L225 Difference]: With dead ends: 153 [2018-10-10 16:40:57,969 INFO L226 Difference]: Without dead ends: 153 [2018-10-10 16:40:57,971 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2018-10-10 16:40:57,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-10-10 16:40:57,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2018-10-10 16:40:57,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-10-10 16:40:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-10-10 16:40:57,985 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 105 [2018-10-10 16:40:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:40:57,986 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-10-10 16:40:57,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-10 16:40:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-10-10 16:40:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-10 16:40:57,991 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:40:57,991 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] [2018-10-10 16:40:57,992 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:40:57,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:40:57,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1367424197, now seen corresponding path program 2 times [2018-10-10 16:40:57,993 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:40:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:41:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:41:00,240 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:41:00,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 16:41:00,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 16:41:00,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 16:41:00,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 16:41:00,242 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 38 states. [2018-10-10 16:41:02,484 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-10 16:41:02,794 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 16:41:03,005 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-10 16:41:03,396 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-10 16:41:03,605 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-10 16:41:03,841 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-10 16:41:04,158 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 16:41:04,384 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 16:41:04,943 WARN L178 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-10 16:41:05,403 WARN L178 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-10-10 16:41:05,912 WARN L178 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-10-10 16:41:06,139 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-10 16:41:06,473 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-10-10 16:41:06,744 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-10 16:41:07,240 WARN L178 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2018-10-10 16:41:07,716 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-10 16:41:08,196 WARN L178 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-10-10 16:41:08,699 WARN L178 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-10 16:41:08,897 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-10 16:41:09,132 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-10-10 16:41:09,450 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-10 16:41:09,745 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 16:41:09,976 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-10-10 16:41:10,278 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2018-10-10 16:41:10,575 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2018-10-10 16:41:10,771 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-10 16:41:11,051 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-10 16:41:11,393 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-10 16:41:11,700 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-10 16:41:11,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:41:11,773 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2018-10-10 16:41:11,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-10 16:41:11,774 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 140 [2018-10-10 16:41:11,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:41:11,777 INFO L225 Difference]: With dead ends: 188 [2018-10-10 16:41:11,777 INFO L226 Difference]: Without dead ends: 188 [2018-10-10 16:41:11,779 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=1102, Invalid=5060, Unknown=0, NotChecked=0, Total=6162 [2018-10-10 16:41:11,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-10-10 16:41:11,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2018-10-10 16:41:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-10-10 16:41:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-10-10 16:41:11,796 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 140 [2018-10-10 16:41:11,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:41:11,797 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-10-10 16:41:11,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 16:41:11,797 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-10-10 16:41:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-10 16:41:11,801 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:41:11,802 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] [2018-10-10 16:41:11,802 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:41:11,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:41:11,802 INFO L82 PathProgramCache]: Analyzing trace with hash -397709030, now seen corresponding path program 3 times [2018-10-10 16:41:11,803 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:41:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:41:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-10 16:41:13,667 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:41:13,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 16:41:13,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 16:41:13,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 16:41:13,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1306, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 16:41:13,669 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 38 states. [2018-10-10 16:41:15,390 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-10 16:41:15,812 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-10-10 16:41:16,142 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2018-10-10 16:41:16,814 WARN L178 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2018-10-10 16:41:17,118 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-10-10 16:41:17,501 WARN L178 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2018-10-10 16:41:17,918 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-10-10 16:41:18,354 WARN L178 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2018-10-10 16:41:18,781 WARN L178 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2018-10-10 16:41:19,219 WARN L178 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2018-10-10 16:41:19,625 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2018-10-10 16:41:19,830 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-10 16:41:20,166 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 16:41:20,348 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 16:41:20,880 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-10 16:41:21,425 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-10-10 16:41:21,765 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-10 16:41:22,154 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2018-10-10 16:41:22,514 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2018-10-10 16:41:22,839 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2018-10-10 16:41:23,393 WARN L178 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-10-10 16:41:24,072 WARN L178 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 117 [2018-10-10 16:41:24,681 WARN L178 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 120 [2018-10-10 16:41:25,325 WARN L178 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2018-10-10 16:41:25,961 WARN L178 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2018-10-10 16:41:26,185 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-10-10 16:41:26,369 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-10 16:41:26,561 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-10 16:41:26,749 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-10 16:41:27,300 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 16:41:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:41:27,307 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-10-10 16:41:27,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-10 16:41:27,311 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 175 [2018-10-10 16:41:27,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:41:27,312 INFO L225 Difference]: With dead ends: 174 [2018-10-10 16:41:27,312 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 16:41:27,314 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=1551, Invalid=5759, Unknown=0, NotChecked=0, Total=7310 [2018-10-10 16:41:27,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 16:41:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 16:41:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 16:41:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 16:41:27,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2018-10-10 16:41:27,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:41:27,315 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 16:41:27,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 16:41:27,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 16:41:27,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 16:41:27,319 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 10.10 04:41:27 BasicIcfg [2018-10-10 16:41:27,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 16:41:27,320 INFO L168 Benchmark]: Toolchain (without parser) took 100311.10 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 3.7 GB in the end (delta: -2.2 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:41:27,321 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:41:27,321 INFO L168 Benchmark]: Boogie Preprocessor took 80.13 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:41:27,321 INFO L168 Benchmark]: RCFGBuilder took 765.68 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. [2018-10-10 16:41:27,322 INFO L168 Benchmark]: IcfgTransformer took 60444.31 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -821.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-10 16:41:27,323 INFO L168 Benchmark]: TraceAbstraction took 39013.41 ms. Allocated memory was 3.4 GB in the beginning and 3.8 GB in the end (delta: 339.7 MB). Free memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: -1.4 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:41:27,327 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.13 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 765.68 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 60444.31 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -821.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * TraceAbstraction took 39013.41 ms. Allocated memory was 3.4 GB in the beginning and 3.8 GB in the end (delta: 339.7 MB). Free memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: -1.4 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 : 93 LocStat_MAX_WEQGRAPH_SIZE : 17 LocStat_MAX_SIZEOF_WEQEDGELABEL : 6 LocStat_NO_SUPPORTING_EQUALITIES : 3310 LocStat_NO_SUPPORTING_DISEQUALITIES : 708 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) : 43396.92 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 141 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 95 different actions 139 times. Merged at 37 different actions 43 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 4 COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 3 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 2 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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, 38.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 32.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 269 SDtfs, 4713 SDslu, 3412 SDs, 0 SdLazy, 4293 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 30.1s 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, 0.1s SatisfiabilityAnalysisTime, 5.9s 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-0-2018-10-10_16-41-27-345.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-0-2018-10-10_16-41-27-345.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-0-2018-10-10_16-41-27-345.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...