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/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:50:32,207 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:50:32,211 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:50:32,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:50:32,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:50:32,229 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:50:32,231 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:50:32,234 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:50:32,237 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:50:32,246 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:50:32,247 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:50:32,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:50:32,252 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:50:32,253 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:50:32,254 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:50:32,257 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:50:32,258 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:50:32,260 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:50:32,264 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:50:32,268 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:50:32,269 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:50:32,272 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:50:32,274 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:50:32,274 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:50:32,275 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:50:32,276 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:50:32,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:50:32,279 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:50:32,279 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:50:32,280 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:50:32,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:50:32,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:50:32,287 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 16:50:32,298 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:50:32,298 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:50:32,299 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:50:32,300 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:50:32,300 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:50:32,300 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:50:32,301 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:50:32,301 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:50:32,301 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:50:32,301 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:50:32,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:50:32,302 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:50:32,302 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:50:32,303 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:50:32,303 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:50:32,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:50:32,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:50:32,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:50:32,390 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:50:32,391 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:50:32,392 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-14 16:50:32,392 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl' [2018-10-14 16:50:32,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:50:32,497 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:50:32,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:50:32,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:50:32,498 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:50:32,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/1) ... [2018-10-14 16:50:32,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/1) ... [2018-10-14 16:50:32,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/1) ... [2018-10-14 16:50:32,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/1) ... [2018-10-14 16:50:32,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/1) ... [2018-10-14 16:50:32,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/1) ... [2018-10-14 16:50:32,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/1) ... [2018-10-14 16:50:32,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:50:32,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:50:32,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:50:32,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:50:32,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (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 16:50:32,653 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:50:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:50:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:50:33,452 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:50:33,453 INFO L202 PluginConnector]: Adding new model openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:50:33 BoogieIcfgContainer [2018-10-14 16:50:33,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:50:33,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:50:33,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:50:33,459 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:50:33,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:32" (1/2) ... [2018-10-14 16:50:33,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbc6bb1 and model type openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:50:33, skipping insertion in model container [2018-10-14 16:50:33,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:50:33" (2/2) ... [2018-10-14 16:50:33,463 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-14 16:50:33,474 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:50:33,483 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:50:33,501 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:50:33,536 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:50:33,537 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:50:33,537 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:50:33,538 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:50:33,538 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:50:33,538 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:50:33,538 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:50:33,538 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:50:33,538 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:50:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-10-14 16:50:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-14 16:50:33,589 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:33,590 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:50:33,592 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:33,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:33,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1582422144, now seen corresponding path program 1 times [2018-10-14 16:50:33,666 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:34,551 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 16:50:34,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:50:34,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:50:34,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:50:34,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:50:34,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:50:34,582 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 12 states. [2018-10-14 16:50:36,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:36,075 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-10-14 16:50:36,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-14 16:50:36,077 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 100 [2018-10-14 16:50:36,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:36,093 INFO L225 Difference]: With dead ends: 129 [2018-10-14 16:50:36,094 INFO L226 Difference]: Without dead ends: 129 [2018-10-14 16:50:36,097 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2018-10-14 16:50:36,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-10-14 16:50:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 116. [2018-10-14 16:50:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-10-14 16:50:36,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-10-14 16:50:36,151 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 100 [2018-10-14 16:50:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:36,153 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-10-14 16:50:36,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:50:36,154 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-10-14 16:50:36,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-14 16:50:36,161 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:36,161 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:50:36,162 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:36,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:36,166 INFO L82 PathProgramCache]: Analyzing trace with hash 952376427, now seen corresponding path program 1 times [2018-10-14 16:50:36,167 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:37,129 WARN L179 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 24 [2018-10-14 16:50:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:50:37,958 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:37,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-14 16:50:37,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-14 16:50:37,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-14 16:50:37,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=692, Unknown=0, NotChecked=0, Total=756 [2018-10-14 16:50:37,962 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 28 states. [2018-10-14 16:50:38,889 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-10-14 16:50:39,197 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-14 16:50:39,366 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-10-14 16:50:41,233 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-14 16:50:41,413 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2018-10-14 16:50:41,563 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-10-14 16:50:41,784 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-14 16:50:42,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:42,215 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-10-14 16:50:42,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-14 16:50:42,217 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 115 [2018-10-14 16:50:42,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:42,221 INFO L225 Difference]: With dead ends: 144 [2018-10-14 16:50:42,221 INFO L226 Difference]: Without dead ends: 144 [2018-10-14 16:50:42,223 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=642, Invalid=2550, Unknown=0, NotChecked=0, Total=3192 [2018-10-14 16:50:42,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-10-14 16:50:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 131. [2018-10-14 16:50:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-14 16:50:42,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-10-14 16:50:42,235 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 115 [2018-10-14 16:50:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:42,236 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-10-14 16:50:42,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-14 16:50:42,236 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-10-14 16:50:42,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-14 16:50:42,238 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:42,238 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:50:42,239 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:42,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash 705307936, now seen corresponding path program 2 times [2018-10-14 16:50:42,240 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:50:44,371 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:44,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-14 16:50:44,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-14 16:50:44,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-14 16:50:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1178, Unknown=0, NotChecked=0, Total=1260 [2018-10-14 16:50:44,373 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 36 states. [2018-10-14 16:50:46,037 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-14 16:50:46,375 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2018-10-14 16:50:46,603 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2018-10-14 16:50:46,768 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-14 16:50:47,399 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-14 16:50:47,621 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-14 16:50:48,664 WARN L179 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-14 16:50:48,939 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-14 16:50:49,232 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2018-10-14 16:50:49,763 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-14 16:50:50,147 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-14 16:50:50,450 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-14 16:50:50,888 WARN L179 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-10-14 16:50:51,439 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2018-10-14 16:50:51,916 WARN L179 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-10-14 16:50:52,415 WARN L179 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2018-10-14 16:50:52,856 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2018-10-14 16:50:53,146 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2018-10-14 16:50:53,351 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2018-10-14 16:50:53,596 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2018-10-14 16:50:53,810 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-14 16:50:54,046 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-10-14 16:50:54,367 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2018-10-14 16:50:54,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:54,438 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-10-14 16:50:54,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-10-14 16:50:54,438 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 130 [2018-10-14 16:50:54,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:54,442 INFO L225 Difference]: With dead ends: 159 [2018-10-14 16:50:54,442 INFO L226 Difference]: Without dead ends: 159 [2018-10-14 16:50:54,444 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=764, Invalid=4206, Unknown=0, NotChecked=0, Total=4970 [2018-10-14 16:50:54,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-10-14 16:50:54,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 146. [2018-10-14 16:50:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-10-14 16:50:54,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-10-14 16:50:54,454 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 130 [2018-10-14 16:50:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:54,455 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-10-14 16:50:54,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-14 16:50:54,455 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-10-14 16:50:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-14 16:50:54,458 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:54,458 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:50:54,458 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:54,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:54,459 INFO L82 PathProgramCache]: Analyzing trace with hash -820708405, now seen corresponding path program 3 times [2018-10-14 16:50:54,460 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:55,004 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:50:55,213 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-14 16:50:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-14 16:50:56,006 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:56,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-14 16:50:56,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-14 16:50:56,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-14 16:50:56,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2018-10-14 16:50:56,008 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 32 states. [2018-10-14 16:50:58,280 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2018-10-14 16:50:58,479 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2018-10-14 16:50:58,721 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2018-10-14 16:50:58,983 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2018-10-14 16:50:59,233 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-10-14 16:50:59,709 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2018-10-14 16:50:59,966 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2018-10-14 16:51:00,155 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-14 16:51:00,346 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2018-10-14 16:51:00,518 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2018-10-14 16:51:00,755 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2018-10-14 16:51:01,178 WARN L179 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2018-10-14 16:51:01,480 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2018-10-14 16:51:01,811 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2018-10-14 16:51:02,066 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2018-10-14 16:51:02,234 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-14 16:51:02,432 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2018-10-14 16:51:02,625 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2018-10-14 16:51:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:51:02,635 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-10-14 16:51:02,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-14 16:51:02,636 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 145 [2018-10-14 16:51:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:51:02,637 INFO L225 Difference]: With dead ends: 144 [2018-10-14 16:51:02,638 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:51:02,640 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=943, Invalid=3749, Unknown=0, NotChecked=0, Total=4692 [2018-10-14 16:51:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:51:02,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:51:02,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:51:02,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:51:02,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2018-10-14 16:51:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:51:02,641 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:51:02,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-14 16:51:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:51:02,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:51:02,647 INFO L202 PluginConnector]: Adding new model openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:51:02 BoogieIcfgContainer [2018-10-14 16:51:02,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:51:02,648 INFO L168 Benchmark]: Toolchain (without parser) took 30152.45 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 256.9 MB). Peak memory consumption was 615.0 MB. Max. memory is 7.1 GB. [2018-10-14 16:51:02,649 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 16:51:02,650 INFO L168 Benchmark]: Boogie Preprocessor took 81.90 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 16:51:02,650 INFO L168 Benchmark]: RCFGBuilder took 873.84 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. [2018-10-14 16:51:02,651 INFO L168 Benchmark]: TraceAbstraction took 29192.46 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 225.2 MB). Peak memory consumption was 583.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:51:02,654 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 0.22 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 81.90 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 873.84 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. * TraceAbstraction took 29192.46 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 225.2 MB). Peak memory consumption was 583.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 199]: 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, 113 locations, 1 error locations. SAFE Result, 29.1s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 22.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 307 SDtfs, 3964 SDslu, 3571 SDs, 0 SdLazy, 3675 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 21.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred 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, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 878946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 12/90 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_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-51-02-665.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-51-02-665.csv Received shutdown request...