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_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 16:40:52,923 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 16:40:52,925 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 16:40:52,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 16:40:52,938 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 16:40:52,939 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 16:40:52,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 16:40:52,943 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 16:40:52,945 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 16:40:52,946 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 16:40:52,947 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 16:40:52,947 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 16:40:52,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 16:40:52,952 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 16:40:52,955 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 16:40:52,955 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 16:40:52,956 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 16:40:52,958 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 16:40:52,961 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 16:40:52,964 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 16:40:52,965 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 16:40:52,966 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 16:40:52,972 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 16:40:52,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 16:40:52,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 16:40:52,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 16:40:52,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 16:40:52,976 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 16:40:52,978 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 16:40:52,979 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 16:40:52,979 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 16:40:52,981 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 16:40:52,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 16:40:52,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 16:40:52,984 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 16:40:52,985 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 16:40:52,985 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 16:40:52,995 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 16:40:52,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 16:40:52,996 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 16:40:52,996 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 16:40:52,996 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 16:40:52,996 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 16:40:52,997 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 16:40:52,997 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 16:40:52,997 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 16:40:52,998 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 16:40:52,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 16:40:52,998 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 16:40:52,998 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 16:40:52,999 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 16:40:52,999 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 16:40:53,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 16:40:53,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 16:40:53,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 16:40:53,085 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 16:40:53,086 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 16:40:53,086 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 16:40:53,087 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-10 16:40:53,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 16:40:53,162 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-10 16:40:53,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 16:40:53,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 16:40:53,163 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 16:40:53,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 16:40:53,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 16:40:53,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 16:40:53,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 16:40:53,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (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 16:40:53,307 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 16:40:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 16:40:53,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 16:40:53,940 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 16:40:53,941 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:40:53 BoogieIcfgContainer [2018-10-10 16:40:53,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 16:40:53,941 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-10 16:40:53,941 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-10 16:40:53,942 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-10 16:40:53,945 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:40:53" (1/1) ... [2018-10-10 16:40:53,954 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-10 16:40:53,955 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-10 16:40:53,999 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-10 16:40:54,054 INFO L217 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-10 16:40:54,078 INFO L280 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-10 16:40:54,168 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-10 16:41:58,414 INFO L315 AbstractInterpreter]: Visited 94 different actions 140 times. Merged at 31 different actions 44 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-10 16:41:58,416 INFO L304 apSepIcfgTransformer]: finished equality analysis [2018-10-10 16:41:58,420 INFO L316 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-10 16:41:58,467 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 16:41:58,536 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 16:41:58,618 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_7|) |v_ULTIMATE.start_read~int_#ptr.offset_5|) at (assume #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-10 16:41:58,620 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-10 16:41:58,620 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:41:58,620 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:41:58,621 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-10 16:41:58,621 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-10 16:41:58,621 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:41:58,621 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-10 16:41:58,621 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:41:58,622 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:41:58,622 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:41:58,622 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-10 16:41:58,622 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-10 16:41:58,622 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:41:58,623 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-10 16:41:58,624 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:41:58,625 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-10 16:41:58,650 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:41:58 BasicIcfg [2018-10-10 16:41:58,650 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-10 16:41:58,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 16:41:58,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 16:41:58,659 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 16:41:58,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:40:53" (1/3) ... [2018-10-10 16:41:58,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699db0a6 and model type openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 04:41:58, skipping insertion in model container [2018-10-10 16:41:58,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:40:53" (2/3) ... [2018-10-10 16:41:58,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699db0a6 and model type openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:41:58, skipping insertion in model container [2018-10-10 16:41:58,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:41:58" (3/3) ... [2018-10-10 16:41:58,664 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-10 16:41:58,675 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 16:41:58,684 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 16:41:58,699 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 16:41:58,722 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 16:41:58,723 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 16:41:58,723 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 16:41:58,723 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 16:41:58,724 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 16:41:58,724 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 16:41:58,724 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 16:41:58,724 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 16:41:58,724 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 16:41:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2018-10-10 16:41:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-10 16:41:58,747 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:41:58,748 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] [2018-10-10 16:41:58,749 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:41:58,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:41:58,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1228316066, now seen corresponding path program 1 times [2018-10-10 16:41:58,814 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:41:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:41:59,414 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-10 16:42:00,080 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 16:42:00,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 16:42:00,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 16:42:00,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 16:42:00,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 16:42:00,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-10 16:42:00,104 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 13 states. [2018-10-10 16:42:00,732 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-10 16:42:01,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:42:01,302 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-10 16:42:01,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-10 16:42:01,304 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2018-10-10 16:42:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:42:01,316 INFO L225 Difference]: With dead ends: 109 [2018-10-10 16:42:01,316 INFO L226 Difference]: Without dead ends: 109 [2018-10-10 16:42:01,318 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2018-10-10 16:42:01,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-10 16:42:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2018-10-10 16:42:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-10-10 16:42:01,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-10-10 16:42:01,364 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 67 [2018-10-10 16:42:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:42:01,365 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-10-10 16:42:01,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 16:42:01,365 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-10-10 16:42:01,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-10 16:42:01,369 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:42:01,369 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 16:42:01,369 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:42:01,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:42:01,370 INFO L82 PathProgramCache]: Analyzing trace with hash -867112460, now seen corresponding path program 1 times [2018-10-10 16:42:01,371 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:42:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:42:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:42:02,554 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:42:02,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-10 16:42:02,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-10 16:42:02,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-10 16:42:02,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-10-10 16:42:02,558 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 21 states. [2018-10-10 16:42:04,119 WARN L178 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-10-10 16:42:04,282 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-10-10 16:42:04,448 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-10-10 16:42:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:42:05,275 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-10-10 16:42:05,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-10-10 16:42:05,276 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-10-10 16:42:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:42:05,279 INFO L225 Difference]: With dead ends: 138 [2018-10-10 16:42:05,279 INFO L226 Difference]: Without dead ends: 138 [2018-10-10 16:42:05,281 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=449, Invalid=1713, Unknown=0, NotChecked=0, Total=2162 [2018-10-10 16:42:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-10-10 16:42:05,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 126. [2018-10-10 16:42:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-10 16:42:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-10-10 16:42:05,295 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 96 [2018-10-10 16:42:05,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:42:05,296 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-10-10 16:42:05,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-10 16:42:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-10-10 16:42:05,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-10 16:42:05,299 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:42:05,299 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:05,300 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:42:05,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:42:05,300 INFO L82 PathProgramCache]: Analyzing trace with hash 297342690, now seen corresponding path program 2 times [2018-10-10 16:42:05,301 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:42:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:42:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 16:42:07,248 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:42:07,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-10 16:42:07,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-10 16:42:07,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-10 16:42:07,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2018-10-10 16:42:07,250 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 32 states. [2018-10-10 16:42:10,144 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-10 16:42:10,408 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2018-10-10 16:42:11,506 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 16:42:11,816 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2018-10-10 16:42:12,348 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-10 16:42:12,668 WARN L178 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2018-10-10 16:42:13,008 WARN L178 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-10-10 16:42:13,238 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2018-10-10 16:42:13,491 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-10 16:42:14,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:42:14,680 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-10-10 16:42:14,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-10 16:42:14,681 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 125 [2018-10-10 16:42:14,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:42:14,685 INFO L225 Difference]: With dead ends: 167 [2018-10-10 16:42:14,685 INFO L226 Difference]: Without dead ends: 167 [2018-10-10 16:42:14,687 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=645, Invalid=4047, Unknown=0, NotChecked=0, Total=4692 [2018-10-10 16:42:14,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-10-10 16:42:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 155. [2018-10-10 16:42:14,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-10 16:42:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-10-10 16:42:14,700 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 125 [2018-10-10 16:42:14,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:42:14,700 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-10-10 16:42:14,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-10 16:42:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-10-10 16:42:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-10 16:42:14,703 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:42:14,703 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:14,703 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:42:14,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:42:14,704 INFO L82 PathProgramCache]: Analyzing trace with hash -212338508, now seen corresponding path program 3 times [2018-10-10 16:42:14,705 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:42:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:42:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-10 16:42:15,836 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:42:15,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-10 16:42:15,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-10 16:42:15,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-10 16:42:15,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=745, Unknown=0, NotChecked=0, Total=812 [2018-10-10 16:42:15,837 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 29 states. [2018-10-10 16:42:17,766 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2018-10-10 16:42:17,993 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2018-10-10 16:42:18,228 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2018-10-10 16:42:18,454 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2018-10-10 16:42:18,690 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2018-10-10 16:42:18,880 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-10 16:42:19,058 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-10-10 16:42:19,956 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2018-10-10 16:42:20,334 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2018-10-10 16:42:20,599 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2018-10-10 16:42:20,891 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2018-10-10 16:42:21,158 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-10 16:42:21,362 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-10 16:42:21,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:42:21,374 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-10 16:42:21,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-10-10 16:42:21,375 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 154 [2018-10-10 16:42:21,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:42:21,376 INFO L225 Difference]: With dead ends: 153 [2018-10-10 16:42:21,376 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 16:42:21,378 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=760, Invalid=3400, Unknown=0, NotChecked=0, Total=4160 [2018-10-10 16:42:21,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 16:42:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 16:42:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 16:42:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 16:42:21,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2018-10-10 16:42:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:42:21,379 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 16:42:21,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-10 16:42:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 16:42:21,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 16:42:21,382 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:42:21 BasicIcfg [2018-10-10 16:42:21,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 16:42:21,383 INFO L168 Benchmark]: Toolchain (without parser) took 88223.59 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2018-10-10 16:42:21,384 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:42:21,385 INFO L168 Benchmark]: Boogie Preprocessor took 69.75 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 16:42:21,386 INFO L168 Benchmark]: RCFGBuilder took 707.73 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 16:42:21,386 INFO L168 Benchmark]: IcfgTransformer took 64709.20 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 1.2 GB in the end (delta: 248.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-10 16:42:21,387 INFO L168 Benchmark]: TraceAbstraction took 22731.40 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 335.5 MB). Free memory was 1.2 GB in the beginning and 3.7 GB in the end (delta: -2.5 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:42:21,391 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.75 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 707.73 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 64709.20 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 1.2 GB in the end (delta: 248.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * TraceAbstraction took 22731.40 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 335.5 MB). Free memory was 1.2 GB in the beginning and 3.7 GB in the end (delta: -2.5 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 : 92 LocStat_MAX_WEQGRAPH_SIZE : 17 LocStat_MAX_SIZEOF_WEQEDGELABEL : 6 LocStat_NO_SUPPORTING_EQUALITIES : 3212 LocStat_NO_SUPPORTING_DISEQUALITIES : 693 LocStat_NO_DISJUNCTIONS : -184 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 94 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 95 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 94 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 41011.26 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 142 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 94 different actions 140 times. Merged at 31 different actions 44 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, 94 locations, 1 error locations. SAFE Result, 22.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 16.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 265 SDtfs, 2348 SDslu, 3211 SDs, 0 SdLazy, 3241 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1711 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred 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, 5.1s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 757992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 26/146 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_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-10_16-42-21-406.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-10_16-42-21-406.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-10_16-42-21-406.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...