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/960521-1_1_true-valid-memsafety.i_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 18:05:49,967 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 18:05:49,969 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 18:05:49,982 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 18:05:49,982 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 18:05:49,983 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 18:05:49,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 18:05:49,995 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 18:05:49,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 18:05:49,999 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 18:05:50,000 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 18:05:50,001 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 18:05:50,002 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 18:05:50,003 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 18:05:50,006 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 18:05:50,007 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 18:05:50,007 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 18:05:50,012 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 18:05:50,014 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 18:05:50,021 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 18:05:50,026 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 18:05:50,028 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 18:05:50,032 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 18:05:50,033 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 18:05:50,033 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 18:05:50,035 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 18:05:50,036 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 18:05:50,039 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 18:05:50,040 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 18:05:50,041 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 18:05:50,041 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 18:05:50,043 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 18:05:50,043 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 18:05:50,045 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 18:05:50,046 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 18:05:50,049 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 18:05:50,049 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 18:05:50,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 18:05:50,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 18:05:50,068 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 18:05:50,068 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 18:05:50,070 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 18:05:50,070 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 18:05:50,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 18:05:50,071 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 18:05:50,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 18:05:50,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 18:05:50,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 18:05:50,072 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 18:05:50,072 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 18:05:50,073 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 18:05:50,074 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 18:05:50,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 18:05:50,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 18:05:50,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 18:05:50,192 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 18:05:50,193 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 18:05:50,194 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/960521-1_1_true-valid-memsafety.i_11.bpl [2018-10-14 18:05:50,194 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/960521-1_1_true-valid-memsafety.i_11.bpl' [2018-10-14 18:05:50,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 18:05:50,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-14 18:05:50,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 18:05:50,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 18:05:50,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 18:05:50,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/1) ... [2018-10-14 18:05:50,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/1) ... [2018-10-14 18:05:50,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/1) ... [2018-10-14 18:05:50,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/1) ... [2018-10-14 18:05:50,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/1) ... [2018-10-14 18:05:50,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/1) ... [2018-10-14 18:05:50,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/1) ... [2018-10-14 18:05:50,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 18:05:50,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 18:05:50,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 18:05:50,339 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 18:05:50,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (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 [2018-10-14 18:05:50,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 18:05:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 18:05:50,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 18:05:51,033 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 18:05:51,034 INFO L202 PluginConnector]: Adding new model 960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:05:51 BoogieIcfgContainer [2018-10-14 18:05:51,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 18:05:51,035 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-14 18:05:51,035 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-14 18:05:51,036 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-14 18:05:51,039 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:05:51" (1/1) ... [2018-10-14 18:05:51,047 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-14 18:05:51,048 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-14 18:05:51,090 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-14 18:05:51,144 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-14 18:05:51,161 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-14 18:05:51,232 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-14 18:06:12,288 INFO L315 AbstractInterpreter]: Visited 69 different actions 156 times. Merged at 58 different actions 83 times. Widened at 1 different actions 1 times. Found 3 fixpoints after 3 different actions. Largest state had 0 variables. [2018-10-14 18:06:12,291 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-14 18:06:12,299 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-14 18:06:12,421 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_13|) 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;) [2018-10-14 18:06:12,424 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-14 18:06:12,426 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:06:12,426 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:06:12,426 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-14 18:06:12,426 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:06:12,426 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:06:12,427 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-14 18:06:12,427 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-14 18:06:12,427 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:06:12,427 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:06:12,428 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-14 18:06:12,428 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:06:12,428 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:06:12,428 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-14 18:06:12,428 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-14 18:06:12,431 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-14 18:06:12,456 INFO L202 PluginConnector]: Adding new model 960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:06:12 BasicIcfg [2018-10-14 18:06:12,457 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-14 18:06:12,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 18:06:12,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 18:06:12,463 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 18:06:12,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:05:50" (1/3) ... [2018-10-14 18:06:12,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd7ade and model type 960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:06:12, skipping insertion in model container [2018-10-14 18:06:12,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:05:51" (2/3) ... [2018-10-14 18:06:12,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd7ade and model type 960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:06:12, skipping insertion in model container [2018-10-14 18:06:12,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:06:12" (3/3) ... [2018-10-14 18:06:12,467 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-14 18:06:12,478 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 18:06:12,487 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 18:06:12,506 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 18:06:12,533 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 18:06:12,534 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 18:06:12,534 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 18:06:12,534 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 18:06:12,534 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 18:06:12,535 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 18:06:12,535 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 18:06:12,535 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 18:06:12,535 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 18:06:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-10-14 18:06:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-14 18:06:12,558 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:12,559 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] [2018-10-14 18:06:12,561 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:12,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:12,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1840131552, now seen corresponding path program 1 times [2018-10-14 18:06:12,635 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:13,460 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-14 18:06:13,661 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 18:06:14,131 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 18:06:14,417 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 18:06:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:06:15,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:06:15,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-10-14 18:06:15,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-14 18:06:15,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-14 18:06:15,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-14 18:06:15,780 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 14 states. [2018-10-14 18:06:16,984 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-14 18:06:17,326 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-14 18:06:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:18,123 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2018-10-14 18:06:18,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-14 18:06:18,125 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2018-10-14 18:06:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:18,139 INFO L225 Difference]: With dead ends: 133 [2018-10-14 18:06:18,139 INFO L226 Difference]: Without dead ends: 133 [2018-10-14 18:06:18,142 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2018-10-14 18:06:18,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-10-14 18:06:18,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 110. [2018-10-14 18:06:18,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-10-14 18:06:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 112 transitions. [2018-10-14 18:06:18,197 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 112 transitions. Word has length 54 [2018-10-14 18:06:18,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:18,198 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 112 transitions. [2018-10-14 18:06:18,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-14 18:06:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 112 transitions. [2018-10-14 18:06:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-14 18:06:18,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:18,201 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:06:18,202 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:18,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:18,202 INFO L82 PathProgramCache]: Analyzing trace with hash -546591526, now seen corresponding path program 1 times [2018-10-14 18:06:18,203 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:06:18,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:06:18,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-14 18:06:18,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-14 18:06:18,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-14 18:06:18,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-10-14 18:06:18,700 INFO L87 Difference]: Start difference. First operand 110 states and 112 transitions. Second operand 16 states. [2018-10-14 18:06:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:19,996 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2018-10-14 18:06:19,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 18:06:19,998 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 60 [2018-10-14 18:06:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:20,000 INFO L225 Difference]: With dead ends: 142 [2018-10-14 18:06:20,000 INFO L226 Difference]: Without dead ends: 142 [2018-10-14 18:06:20,001 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2018-10-14 18:06:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-10-14 18:06:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 71. [2018-10-14 18:06:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-10-14 18:06:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2018-10-14 18:06:20,010 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 60 [2018-10-14 18:06:20,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:20,011 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2018-10-14 18:06:20,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-14 18:06:20,011 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2018-10-14 18:06:20,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-14 18:06:20,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:20,014 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] [2018-10-14 18:06:20,015 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:20,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:20,015 INFO L82 PathProgramCache]: Analyzing trace with hash 183554632, now seen corresponding path program 1 times [2018-10-14 18:06:20,016 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:06:20,191 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:06:20,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-14 18:06:20,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 18:06:20,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 18:06:20,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-14 18:06:20,193 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 6 states. [2018-10-14 18:06:20,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:20,333 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2018-10-14 18:06:20,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 18:06:20,333 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-10-14 18:06:20,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:20,335 INFO L225 Difference]: With dead ends: 126 [2018-10-14 18:06:20,335 INFO L226 Difference]: Without dead ends: 76 [2018-10-14 18:06:20,336 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-14 18:06:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-14 18:06:20,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2018-10-14 18:06:20,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-14 18:06:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2018-10-14 18:06:20,341 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 66 [2018-10-14 18:06:20,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:20,342 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2018-10-14 18:06:20,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 18:06:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2018-10-14 18:06:20,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-14 18:06:20,343 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:20,343 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 18:06:20,344 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:20,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:20,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1497785858, now seen corresponding path program 1 times [2018-10-14 18:06:20,345 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:06:20,827 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:06:20,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-10-14 18:06:20,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-14 18:06:20,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-14 18:06:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2018-10-14 18:06:20,829 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 19 states. [2018-10-14 18:06:22,405 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-10-14 18:06:22,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:22,823 INFO L93 Difference]: Finished difference Result 98 states and 99 transitions. [2018-10-14 18:06:22,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-10-14 18:06:22,825 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 72 [2018-10-14 18:06:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:22,828 INFO L225 Difference]: With dead ends: 98 [2018-10-14 18:06:22,828 INFO L226 Difference]: Without dead ends: 98 [2018-10-14 18:06:22,829 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=425, Invalid=1381, Unknown=0, NotChecked=0, Total=1806 [2018-10-14 18:06:22,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-10-14 18:06:22,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2018-10-14 18:06:22,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-10-14 18:06:22,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2018-10-14 18:06:22,835 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 72 [2018-10-14 18:06:22,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:22,836 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2018-10-14 18:06:22,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-14 18:06:22,836 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2018-10-14 18:06:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-14 18:06:22,838 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:22,838 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-10-14 18:06:22,838 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:22,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:22,839 INFO L82 PathProgramCache]: Analyzing trace with hash -800283862, now seen corresponding path program 2 times [2018-10-14 18:06:22,839 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:06:23,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:06:23,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-14 18:06:23,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 18:06:23,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 18:06:23,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-10-14 18:06:23,020 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 10 states. [2018-10-14 18:06:23,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:23,235 INFO L93 Difference]: Finished difference Result 156 states and 157 transitions. [2018-10-14 18:06:23,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-14 18:06:23,235 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-10-14 18:06:23,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:23,237 INFO L225 Difference]: With dead ends: 156 [2018-10-14 18:06:23,237 INFO L226 Difference]: Without dead ends: 94 [2018-10-14 18:06:23,238 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2018-10-14 18:06:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-10-14 18:06:23,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2018-10-14 18:06:23,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-10-14 18:06:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 92 transitions. [2018-10-14 18:06:23,244 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 92 transitions. Word has length 84 [2018-10-14 18:06:23,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:23,244 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 92 transitions. [2018-10-14 18:06:23,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 18:06:23,244 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 92 transitions. [2018-10-14 18:06:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-14 18:06:23,247 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:23,247 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-10-14 18:06:23,247 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:23,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:23,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1464761444, now seen corresponding path program 3 times [2018-10-14 18:06:23,249 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:06:23,715 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:06:23,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-14 18:06:23,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-14 18:06:23,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-14 18:06:23,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2018-10-14 18:06:23,717 INFO L87 Difference]: Start difference. First operand 91 states and 92 transitions. Second operand 24 states. [2018-10-14 18:06:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:25,718 INFO L93 Difference]: Finished difference Result 116 states and 117 transitions. [2018-10-14 18:06:25,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-14 18:06:25,719 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 90 [2018-10-14 18:06:25,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:25,720 INFO L225 Difference]: With dead ends: 116 [2018-10-14 18:06:25,720 INFO L226 Difference]: Without dead ends: 116 [2018-10-14 18:06:25,721 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=561, Invalid=2195, Unknown=0, NotChecked=0, Total=2756 [2018-10-14 18:06:25,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-10-14 18:06:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2018-10-14 18:06:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-10-14 18:06:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2018-10-14 18:06:25,728 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 90 [2018-10-14 18:06:25,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:25,729 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2018-10-14 18:06:25,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-14 18:06:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2018-10-14 18:06:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-14 18:06:25,730 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:25,731 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-14 18:06:25,731 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:25,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:25,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1827916148, now seen corresponding path program 4 times [2018-10-14 18:06:25,732 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 28 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:06:26,004 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:06:26,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-14 18:06:26,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-14 18:06:26,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-14 18:06:26,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-10-14 18:06:26,005 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand 14 states. [2018-10-14 18:06:26,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:26,471 INFO L93 Difference]: Finished difference Result 186 states and 187 transitions. [2018-10-14 18:06:26,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-14 18:06:26,471 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2018-10-14 18:06:26,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:26,472 INFO L225 Difference]: With dead ends: 186 [2018-10-14 18:06:26,473 INFO L226 Difference]: Without dead ends: 112 [2018-10-14 18:06:26,473 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2018-10-14 18:06:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-14 18:06:26,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2018-10-14 18:06:26,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-10-14 18:06:26,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2018-10-14 18:06:26,480 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 102 [2018-10-14 18:06:26,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:26,481 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2018-10-14 18:06:26,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-14 18:06:26,481 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2018-10-14 18:06:26,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-14 18:06:26,483 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:06:26,483 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2018-10-14 18:06:26,483 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:06:26,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:06:26,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1052510906, now seen corresponding path program 5 times [2018-10-14 18:06:26,484 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:06:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:06:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-10-14 18:06:26,953 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:06:26,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-10-14 18:06:26,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-14 18:06:26,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-14 18:06:26,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-10-14 18:06:26,954 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 18 states. [2018-10-14 18:06:28,466 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2018-10-14 18:06:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:06:28,866 INFO L93 Difference]: Finished difference Result 107 states and 108 transitions. [2018-10-14 18:06:28,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-14 18:06:28,875 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 108 [2018-10-14 18:06:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:06:28,875 INFO L225 Difference]: With dead ends: 107 [2018-10-14 18:06:28,875 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 18:06:28,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=411, Invalid=1149, Unknown=0, NotChecked=0, Total=1560 [2018-10-14 18:06:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 18:06:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 18:06:28,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 18:06:28,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 18:06:28,877 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2018-10-14 18:06:28,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:06:28,877 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 18:06:28,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-14 18:06:28,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 18:06:28,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 18:06:28,881 INFO L202 PluginConnector]: Adding new model 960521-1_1_true-valid-memsafety.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:06:28 BasicIcfg [2018-10-14 18:06:28,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 18:06:28,881 INFO L168 Benchmark]: Toolchain (without parser) took 38605.26 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -750.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-14 18:06:28,883 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 18:06:28,883 INFO L168 Benchmark]: Boogie Preprocessor took 60.29 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. [2018-10-14 18:06:28,884 INFO L168 Benchmark]: RCFGBuilder took 695.88 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2018-10-14 18:06:28,885 INFO L168 Benchmark]: IcfgTransformer took 21422.37 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -353.0 MB). Peak memory consumption was 891.6 MB. Max. memory is 7.1 GB. [2018-10-14 18:06:28,886 INFO L168 Benchmark]: TraceAbstraction took 16421.12 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 815.3 MB). Free memory was 1.8 GB in the beginning and 2.2 GB in the end (delta: -427.0 MB). Peak memory consumption was 388.2 MB. Max. memory is 7.1 GB. [2018-10-14 18:06:28,895 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.29 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 695.88 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * IcfgTransformer took 21422.37 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -353.0 MB). Peak memory consumption was 891.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16421.12 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 815.3 MB). Free memory was 1.8 GB in the beginning and 2.2 GB in the end (delta: -427.0 MB). Peak memory consumption was 388.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 66 LocStat_MAX_WEQGRAPH_SIZE : 7 LocStat_MAX_SIZEOF_WEQEDGELABEL : 4 LocStat_NO_SUPPORTING_EQUALITIES : 1388 LocStat_NO_SUPPORTING_DISEQUALITIES : 274 LocStat_NO_DISJUNCTIONS : -132 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 69 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 71 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 70 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 10068.68 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 159 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 69 different actions 156 times. Merged at 58 different actions 83 times. Widened at 1 different actions 1 times. Found 3 fixpoints after 3 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 0 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: 135]: 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, 68 locations, 1 error locations. SAFE Result, 16.3s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 10.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 464 SDtfs, 2613 SDslu, 3049 SDs, 0 SdLazy, 2426 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 259 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=1, 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, 8 MinimizatonAttempts, 129 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 636 NumberOfCodeBlocks, 636 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 628 ConstructedInterpolants, 0 QuantifiedInterpolants, 345553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 115/206 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/960521-1_1_true-valid-memsafety.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-14_18-06-28-911.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-14_18-06-28-911.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-14_18-06-28-911.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...