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_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 16:42:48,115 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 16:42:48,118 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 16:42:48,135 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 16:42:48,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 16:42:48,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 16:42:48,138 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 16:42:48,140 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 16:42:48,142 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 16:42:48,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 16:42:48,144 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 16:42:48,145 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 16:42:48,146 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 16:42:48,147 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 16:42:48,148 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 16:42:48,149 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 16:42:48,150 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 16:42:48,152 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 16:42:48,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 16:42:48,155 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 16:42:48,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 16:42:48,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 16:42:48,160 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 16:42:48,161 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 16:42:48,161 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 16:42:48,162 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 16:42:48,163 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 16:42:48,164 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 16:42:48,164 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 16:42:48,166 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 16:42:48,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 16:42:48,166 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 16:42:48,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 16:42:48,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 16:42:48,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 16:42:48,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 16:42:48,169 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 16:42:48,179 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 16:42:48,179 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 16:42:48,180 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 16:42:48,180 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 16:42:48,180 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 16:42:48,180 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 16:42:48,181 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 16:42:48,181 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 16:42:48,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 16:42:48,182 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 16:42:48,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 16:42:48,182 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 16:42:48,182 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 16:42:48,183 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 16:42:48,183 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 16:42:48,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 16:42:48,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 16:42:48,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 16:42:48,249 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 16:42:48,250 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 16:42:48,251 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-10 16:42:48,252 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-10 16:42:48,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 16:42:48,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-10 16:42:48,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 16:42:48,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 16:42:48,362 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 16:42:48,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/1) ... [2018-10-10 16:42:48,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/1) ... [2018-10-10 16:42:48,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/1) ... [2018-10-10 16:42:48,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/1) ... [2018-10-10 16:42:48,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/1) ... [2018-10-10 16:42:48,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/1) ... [2018-10-10 16:42:48,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/1) ... [2018-10-10 16:42:48,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 16:42:48,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 16:42:48,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 16:42:48,427 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 16:42:48,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (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 16:42:48,496 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 16:42:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 16:42:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 16:42:49,222 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 16:42:49,223 INFO L202 PluginConnector]: Adding new model openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:42:49 BoogieIcfgContainer [2018-10-10 16:42:49,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 16:42:49,223 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-10 16:42:49,223 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-10 16:42:49,224 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-10 16:42:49,228 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:42:49" (1/1) ... [2018-10-10 16:42:49,237 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-10 16:42:49,238 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-10 16:42:49,293 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-10 16:42:49,341 INFO L217 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-10 16:42:49,359 INFO L280 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-10 16:42:49,434 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-10 16:43:51,628 INFO L315 AbstractInterpreter]: Visited 93 different actions 154 times. Merged at 31 different actions 59 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-10 16:43:51,630 INFO L304 apSepIcfgTransformer]: finished equality analysis [2018-10-10 16:43:51,634 INFO L316 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-10 16:43:51,670 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 16:43:51,731 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 16:43:51,767 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 16:43:51,805 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-10 16:43:51,806 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:43:51,806 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:43:51,806 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-10 16:43:51,806 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-10 16:43:51,807 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:43:51,807 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-10 16:43:51,807 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:43:51,807 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-10 16:43:51,807 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-10 16:43:51,807 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-10 16:43:51,807 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-10 16:43:51,808 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-10 16:43:51,808 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-10 16:43:51,808 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-10 16:43:51,809 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-10 16:43:51,833 INFO L202 PluginConnector]: Adding new model openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:43:51 BasicIcfg [2018-10-10 16:43:51,833 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-10 16:43:51,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 16:43:51,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 16:43:51,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 16:43:51,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:42:48" (1/3) ... [2018-10-10 16:43:51,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31731321 and model type openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 04:43:51, skipping insertion in model container [2018-10-10 16:43:51,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:42:49" (2/3) ... [2018-10-10 16:43:51,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31731321 and model type openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:43:51, skipping insertion in model container [2018-10-10 16:43:51,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.10 04:43:51" (3/3) ... [2018-10-10 16:43:51,842 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-10 16:43:51,852 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 16:43:51,860 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 16:43:51,874 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 16:43:51,895 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 16:43:51,896 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 16:43:51,896 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 16:43:51,897 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 16:43:51,897 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 16:43:51,897 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 16:43:51,897 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 16:43:51,897 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 16:43:51,898 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 16:43:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2018-10-10 16:43:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-10 16:43:51,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:43:51,922 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] [2018-10-10 16:43:51,924 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:43:51,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:43:51,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1153390499, now seen corresponding path program 1 times [2018-10-10 16:43:51,989 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:43:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:43:52,694 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 16:43:52,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 16:43:52,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 16:43:52,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 16:43:52,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 16:43:52,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-10 16:43:52,841 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 13 states. [2018-10-10 16:43:53,593 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-10 16:43:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:43:54,106 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-10 16:43:54,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-10 16:43:54,109 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2018-10-10 16:43:54,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:43:54,122 INFO L225 Difference]: With dead ends: 108 [2018-10-10 16:43:54,123 INFO L226 Difference]: Without dead ends: 108 [2018-10-10 16:43:54,125 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2018-10-10 16:43:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-10 16:43:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 96. [2018-10-10 16:43:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-10-10 16:43:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-10-10 16:43:54,172 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 66 [2018-10-10 16:43:54,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:43:54,173 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-10-10 16:43:54,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 16:43:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-10-10 16:43:54,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-10 16:43:54,177 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:43:54,177 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] [2018-10-10 16:43:54,178 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:43:54,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:43:54,178 INFO L82 PathProgramCache]: Analyzing trace with hash 534569615, now seen corresponding path program 1 times [2018-10-10 16:43:54,179 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:43:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:43:55,053 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-10 16:43:55,811 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 16:43:55,812 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:43:55,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-10 16:43:55,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-10 16:43:55,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-10 16:43:55,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2018-10-10 16:43:55,815 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 27 states. [2018-10-10 16:43:56,827 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2018-10-10 16:43:57,079 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-10-10 16:43:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:43:59,892 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-10-10 16:43:59,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-10 16:43:59,892 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 95 [2018-10-10 16:43:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:43:59,895 INFO L225 Difference]: With dead ends: 137 [2018-10-10 16:43:59,895 INFO L226 Difference]: Without dead ends: 137 [2018-10-10 16:43:59,897 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=526, Invalid=2896, Unknown=0, NotChecked=0, Total=3422 [2018-10-10 16:43:59,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-10-10 16:43:59,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2018-10-10 16:43:59,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-10-10 16:43:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-10-10 16:43:59,908 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 95 [2018-10-10 16:43:59,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:43:59,909 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-10-10 16:43:59,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-10 16:43:59,909 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-10-10 16:43:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-10 16:43:59,913 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:43:59,913 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] [2018-10-10 16:43:59,914 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:43:59,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:43:59,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1234292515, now seen corresponding path program 2 times [2018-10-10 16:43:59,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:43:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:44:01,501 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 16:44:01,502 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:44:01,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-10 16:44:01,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-10 16:44:01,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-10 16:44:01,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2018-10-10 16:44:01,504 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 32 states. [2018-10-10 16:44:02,461 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-10 16:44:04,174 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-10 16:44:04,545 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2018-10-10 16:44:05,665 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 16:44:06,016 WARN L178 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2018-10-10 16:44:06,397 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-10 16:44:06,786 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2018-10-10 16:44:07,248 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-10-10 16:44:07,592 WARN L178 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2018-10-10 16:44:07,844 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-10 16:44:08,694 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-10-10 16:44:09,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:44:09,218 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-10-10 16:44:09,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-10 16:44:09,219 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 124 [2018-10-10 16:44:09,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:44:09,224 INFO L225 Difference]: With dead ends: 166 [2018-10-10 16:44:09,224 INFO L226 Difference]: Without dead ends: 166 [2018-10-10 16:44:09,226 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=650, Invalid=4042, Unknown=0, NotChecked=0, Total=4692 [2018-10-10 16:44:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-10-10 16:44:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2018-10-10 16:44:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-10 16:44:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-10-10 16:44:09,238 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 124 [2018-10-10 16:44:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:44:09,238 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-10-10 16:44:09,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-10 16:44:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-10-10 16:44:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-10 16:44:09,241 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 16:44:09,242 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] [2018-10-10 16:44:09,242 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 16:44:09,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 16:44:09,243 INFO L82 PathProgramCache]: Analyzing trace with hash -26764529, now seen corresponding path program 3 times [2018-10-10 16:44:09,243 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 16:44:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 16:44:09,656 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-10 16:44:09,873 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 16:44:10,068 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-10 16:44:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 83 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-10 16:44:11,538 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 16:44:11,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-10-10 16:44:11,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-10-10 16:44:11,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-10-10 16:44:11,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1618, Unknown=0, NotChecked=0, Total=1722 [2018-10-10 16:44:11,540 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 42 states. [2018-10-10 16:44:15,262 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-10-10 16:44:15,786 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2018-10-10 16:44:15,993 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2018-10-10 16:44:16,249 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2018-10-10 16:44:16,539 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-10-10 16:44:16,842 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2018-10-10 16:44:17,121 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2018-10-10 16:44:17,459 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2018-10-10 16:44:17,863 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 99 [2018-10-10 16:44:18,158 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2018-10-10 16:44:18,417 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2018-10-10 16:44:18,703 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2018-10-10 16:44:19,006 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 96 [2018-10-10 16:44:19,314 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2018-10-10 16:44:19,543 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2018-10-10 16:44:19,822 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2018-10-10 16:44:20,104 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2018-10-10 16:44:20,356 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2018-10-10 16:44:20,583 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2018-10-10 16:44:20,888 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2018-10-10 16:44:21,106 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2018-10-10 16:44:21,683 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2018-10-10 16:44:22,086 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2018-10-10 16:44:22,423 WARN L178 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2018-10-10 16:44:22,794 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2018-10-10 16:44:23,178 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 101 [2018-10-10 16:44:23,632 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2018-10-10 16:44:23,889 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-10-10 16:44:24,196 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2018-10-10 16:44:24,534 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2018-10-10 16:44:24,838 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2018-10-10 16:44:24,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 16:44:24,864 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-10-10 16:44:24,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-10-10 16:44:24,865 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 153 [2018-10-10 16:44:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 16:44:24,866 INFO L225 Difference]: With dead ends: 152 [2018-10-10 16:44:24,867 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 16:44:24,869 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1839 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=1511, Invalid=8589, Unknown=0, NotChecked=0, Total=10100 [2018-10-10 16:44:24,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 16:44:24,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 16:44:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 16:44:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 16:44:24,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-10-10 16:44:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 16:44:24,871 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 16:44:24,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-10-10 16:44:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 16:44:24,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 16:44:24,875 INFO L202 PluginConnector]: Adding new model openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 04:44:24 BasicIcfg [2018-10-10 16:44:24,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 16:44:24,877 INFO L168 Benchmark]: Toolchain (without parser) took 96517.10 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 2.4 GB in the end (delta: -940.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-10 16:44:24,878 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 16:44:24,878 INFO L168 Benchmark]: Boogie Preprocessor took 64.36 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 16:44:24,879 INFO L168 Benchmark]: RCFGBuilder took 796.62 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 16:44:24,880 INFO L168 Benchmark]: IcfgTransformer took 62610.25 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 1.3 GB in the end (delta: 122.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-10 16:44:24,881 INFO L168 Benchmark]: TraceAbstraction took 33041.60 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 315.6 MB). Free memory was 1.3 GB in the beginning and 2.4 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 16:44:24,885 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 64.36 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 796.62 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 62610.25 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 1.3 GB in the end (delta: 122.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * TraceAbstraction took 33041.60 ms. Allocated memory was 3.5 GB in the beginning and 3.8 GB in the end (delta: 315.6 MB). Free memory was 1.3 GB in the beginning and 2.4 GB in the end (delta: -1.1 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 : 91 LocStat_MAX_WEQGRAPH_SIZE : 17 LocStat_MAX_SIZEOF_WEQEDGELABEL : 6 LocStat_NO_SUPPORTING_EQUALITIES : 3172 LocStat_NO_SUPPORTING_DISEQUALITIES : 686 LocStat_NO_DISJUNCTIONS : -182 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 93 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 95 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 93 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 44066.28 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 156 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 93 different actions 154 times. Merged at 31 different actions 59 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 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: 166]: 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, 93 locations, 1 error locations. SAFE Result, 32.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 26.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 251 SDtfs, 2478 SDslu, 3569 SDs, 0 SdLazy, 4679 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3153 ImplicationChecksByTransitivity, 24.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred 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, 5.8s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 799390 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 19/146 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_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-10_16-44-24-902.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-10_16-44-24-902.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-10_16-44-24-902.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...