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/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:53:01,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:53:01,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:53:01,828 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-14 16:53:01,870 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 16:53:01,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:53:01,889 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:53:01,889 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:53:01,890 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:53:01,890 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:53:01,890 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:53:01,891 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:53:01,891 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:53:01,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:53:01,891 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:53:01,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:53:01,892 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:53:01,892 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:53:01,893 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:53:01,893 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:53:01,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:53:01,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:53:01,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:53:01,954 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:53:01,954 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:53:01,955 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl [2018-10-14 16:53:01,955 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl' [2018-10-14 16:53:02,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:53:02,054 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:53:02,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:53:02,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:53:02,055 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:53:02,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/1) ... [2018-10-14 16:53:02,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/1) ... [2018-10-14 16:53:02,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/1) ... [2018-10-14 16:53:02,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/1) ... [2018-10-14 16:53:02,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/1) ... [2018-10-14 16:53:02,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/1) ... [2018-10-14 16:53:02,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/1) ... [2018-10-14 16:53:02,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:53:02,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:53:02,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:53:02,144 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:53:02,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (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 16:53:02,225 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:53:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:53:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:53:03,115 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:53:03,116 INFO L202 PluginConnector]: Adding new model sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:03 BoogieIcfgContainer [2018-10-14 16:53:03,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:53:03,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:53:03,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:53:03,124 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:53:03,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:02" (1/2) ... [2018-10-14 16:53:03,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3c27a2 and model type sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:53:03, skipping insertion in model container [2018-10-14 16:53:03,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:03" (2/2) ... [2018-10-14 16:53:03,128 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl [2018-10-14 16:53:03,138 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:53:03,148 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:53:03,163 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:53:03,192 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:53:03,193 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:53:03,193 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:53:03,193 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:53:03,193 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:53:03,193 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:53:03,193 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:53:03,194 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:53:03,194 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:53:03,216 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2018-10-14 16:53:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-14 16:53:03,238 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:03,239 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] [2018-10-14 16:53:03,240 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:03,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:03,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1022604259, now seen corresponding path program 1 times [2018-10-14 16:53:03,297 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:03,851 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 16:53:03,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:53:03,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-14 16:53:03,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-14 16:53:03,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-14 16:53:03,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:53:03,880 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 8 states. [2018-10-14 16:53:04,384 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-14 16:53:04,912 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-10-14 16:53:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:05,234 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-10-14 16:53:05,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-14 16:53:05,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2018-10-14 16:53:05,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:05,251 INFO L225 Difference]: With dead ends: 166 [2018-10-14 16:53:05,251 INFO L226 Difference]: Without dead ends: 152 [2018-10-14 16:53:05,253 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:53:05,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-10-14 16:53:05,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 134. [2018-10-14 16:53:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-10-14 16:53:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-10-14 16:53:05,300 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 86 [2018-10-14 16:53:05,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:05,301 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-10-14 16:53:05,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-14 16:53:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-10-14 16:53:05,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-14 16:53:05,306 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:05,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:05,307 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:05,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:05,308 INFO L82 PathProgramCache]: Analyzing trace with hash 817705922, now seen corresponding path program 1 times [2018-10-14 16:53:05,309 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:06,347 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:06,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-14 16:53:06,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-14 16:53:06,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-14 16:53:06,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:53:06,351 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 20 states. [2018-10-14 16:53:07,784 WARN L179 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2018-10-14 16:53:07,972 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-14 16:53:09,704 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2018-10-14 16:53:10,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:10,277 INFO L93 Difference]: Finished difference Result 236 states and 236 transitions. [2018-10-14 16:53:10,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-14 16:53:10,278 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 133 [2018-10-14 16:53:10,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:10,281 INFO L225 Difference]: With dead ends: 236 [2018-10-14 16:53:10,281 INFO L226 Difference]: Without dead ends: 186 [2018-10-14 16:53:10,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=387, Invalid=1335, Unknown=0, NotChecked=0, Total=1722 [2018-10-14 16:53:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-10-14 16:53:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 181. [2018-10-14 16:53:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-10-14 16:53:10,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2018-10-14 16:53:10,298 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 133 [2018-10-14 16:53:10,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:10,299 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2018-10-14 16:53:10,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-14 16:53:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2018-10-14 16:53:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-14 16:53:10,302 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:10,302 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:10,303 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:10,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:10,303 INFO L82 PathProgramCache]: Analyzing trace with hash -2068332163, now seen corresponding path program 2 times [2018-10-14 16:53:10,304 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:11,006 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-14 16:53:11,187 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:53:12,887 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:12,888 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:12,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-14 16:53:12,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-14 16:53:12,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-14 16:53:12,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=622, Unknown=0, NotChecked=0, Total=702 [2018-10-14 16:53:12,890 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 27 states. [2018-10-14 16:53:14,335 WARN L179 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2018-10-14 16:53:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:16,379 INFO L93 Difference]: Finished difference Result 283 states and 283 transitions. [2018-10-14 16:53:16,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-14 16:53:16,381 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 180 [2018-10-14 16:53:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:16,384 INFO L225 Difference]: With dead ends: 283 [2018-10-14 16:53:16,384 INFO L226 Difference]: Without dead ends: 233 [2018-10-14 16:53:16,386 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=588, Invalid=2382, Unknown=0, NotChecked=0, Total=2970 [2018-10-14 16:53:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-10-14 16:53:16,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2018-10-14 16:53:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-10-14 16:53:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 228 transitions. [2018-10-14 16:53:16,423 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 228 transitions. Word has length 180 [2018-10-14 16:53:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:16,424 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 228 transitions. [2018-10-14 16:53:16,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-14 16:53:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 228 transitions. [2018-10-14 16:53:16,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-14 16:53:16,430 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:16,430 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:16,431 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:16,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:16,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1213607326, now seen corresponding path program 3 times [2018-10-14 16:53:16,432 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:18,563 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-14 16:53:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:19,515 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:19,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-10-14 16:53:19,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-10-14 16:53:19,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-10-14 16:53:19,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1542, Unknown=0, NotChecked=0, Total=1722 [2018-10-14 16:53:19,517 INFO L87 Difference]: Start difference. First operand 228 states and 228 transitions. Second operand 42 states. [2018-10-14 16:53:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:23,198 INFO L93 Difference]: Finished difference Result 230 states and 230 transitions. [2018-10-14 16:53:23,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-10-14 16:53:23,199 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 227 [2018-10-14 16:53:23,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:23,200 INFO L225 Difference]: With dead ends: 230 [2018-10-14 16:53:23,200 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:53:23,203 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1192, Invalid=4814, Unknown=0, NotChecked=0, Total=6006 [2018-10-14 16:53:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:53:23,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:53:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:53:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:53:23,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2018-10-14 16:53:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:23,204 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:53:23,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-10-14 16:53:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:53:23,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:53:23,209 INFO L202 PluginConnector]: Adding new model sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:53:23 BoogieIcfgContainer [2018-10-14 16:53:23,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:53:23,210 INFO L168 Benchmark]: Toolchain (without parser) took 21156.69 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 252.7 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -112.3 MB). Peak memory consumption was 140.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:23,211 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 16:53:23,212 INFO L168 Benchmark]: Boogie Preprocessor took 88.39 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 16:53:23,212 INFO L168 Benchmark]: RCFGBuilder took 972.42 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:23,214 INFO L168 Benchmark]: TraceAbstraction took 20091.93 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 252.7 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -154.6 MB). Peak memory consumption was 98.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:23,221 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 88.39 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 972.42 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20091.93 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 252.7 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -154.6 MB). Peak memory consumption was 98.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 223]: 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, 134 locations, 1 error locations. SAFE Result, 20.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 12.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 310 SDtfs, 5272 SDslu, 3061 SDs, 0 SdLazy, 3594 SolverSat, 285 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 40 SyntacticMatches, 7 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2278 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred 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, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 626 NumberOfCodeBlocks, 626 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 622 ConstructedInterpolants, 0 QuantifiedInterpolants, 1403146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/200 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/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-53-23-234.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_47.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-53-23-234.csv Received shutdown request...