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/960521-1_1_false-valid-free.i_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:17:08,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:17:08,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:17:08,235 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:17:08,235 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:17:08,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:17:08,239 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:17:08,243 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:17:08,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:17:08,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:17:08,247 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:17:08,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:17:08,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:17:08,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:17:08,263 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:17:08,263 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:17:08,264 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:17:08,267 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:17:08,272 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:17:08,276 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:17:08,279 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:17:08,281 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:17:08,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:17:08,285 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:17:08,285 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:17:08,287 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:17:08,288 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:17:08,289 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:17:08,289 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:17:08,294 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:17:08,294 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:17:08,296 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:17:08,296 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:17:08,296 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:17:08,299 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:17:08,301 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:17:08,301 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:17:08,320 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:17:08,321 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:17:08,322 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:17:08,323 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:17:08,323 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:17:08,323 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:17:08,324 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:17:08,324 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:17:08,325 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:17:08,325 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:17:08,325 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:17:08,325 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:17:08,326 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:17:08,327 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:17:08,327 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:17:08,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:17:08,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:17:08,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:17:08,429 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:17:08,429 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:17:08,430 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/960521-1_1_false-valid-free.i_12.bpl [2018-10-10 15:17:08,430 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/960521-1_1_false-valid-free.i_12.bpl' [2018-10-10 15:17:08,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:17:08,537 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:17:08,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:17:08,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:17:08,538 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:17:08,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... [2018-10-10 15:17:08,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... [2018-10-10 15:17:08,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... [2018-10-10 15:17:08,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... [2018-10-10 15:17:08,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... [2018-10-10 15:17:08,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... [2018-10-10 15:17:08,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... [2018-10-10 15:17:08,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:17:08,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:17:08,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:17:08,607 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:17:08,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:17:08,682 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:17:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:17:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:17:09,267 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:17:09,267 INFO L202 PluginConnector]: Adding new model 960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:17:09 BoogieIcfgContainer [2018-10-10 15:17:09,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:17:09,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:17:09,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:17:09,272 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:17:09,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:17:08" (1/2) ... [2018-10-10 15:17:09,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4543a3d0 and model type 960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:17:09, skipping insertion in model container [2018-10-10 15:17:09,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:17:09" (2/2) ... [2018-10-10 15:17:09,276 INFO L112 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-free.i_12.bpl [2018-10-10 15:17:09,286 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:17:09,296 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:17:09,314 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:17:09,344 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:17:09,345 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:17:09,345 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:17:09,345 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:17:09,346 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:17:09,346 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:17:09,346 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:17:09,346 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:17:09,346 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:17:09,366 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-10-10 15:17:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-10 15:17:09,378 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:17:09,380 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] [2018-10-10 15:17:09,381 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:17:09,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:17:09,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2143837203, now seen corresponding path program 1 times [2018-10-10 15:17:09,445 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:17:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:17:09,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:17:09,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:17:09,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:17:09,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:17:09,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:17:09,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:17:09,739 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 4 states. [2018-10-10 15:17:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:17:09,940 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-10-10 15:17:09,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:17:09,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2018-10-10 15:17:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:17:09,960 INFO L225 Difference]: With dead ends: 92 [2018-10-10 15:17:09,961 INFO L226 Difference]: Without dead ends: 92 [2018-10-10 15:17:09,963 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:17:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-10-10 15:17:10,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 82. [2018-10-10 15:17:10,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-10 15:17:10,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-10-10 15:17:10,010 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 69 [2018-10-10 15:17:10,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:17:10,010 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-10-10 15:17:10,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:17:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-10-10 15:17:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-10 15:17:10,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:17:10,014 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] [2018-10-10 15:17:10,015 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:17:10,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:17:10,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1554831731, now seen corresponding path program 1 times [2018-10-10 15:17:10,016 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:17:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:17:11,117 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-10 15:17:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:17:11,967 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:17:11,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-10 15:17:11,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-10 15:17:11,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-10 15:17:11,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:17:11,979 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 27 states. [2018-10-10 15:17:13,339 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2018-10-10 15:17:14,139 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-10-10 15:17:14,439 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-10-10 15:17:14,570 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-10-10 15:17:14,728 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-10-10 15:17:15,530 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-10 15:17:15,882 WARN L178 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-10-10 15:17:16,035 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2018-10-10 15:17:16,237 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-10 15:17:16,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:17:16,239 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-10-10 15:17:16,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-10-10 15:17:16,239 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 81 [2018-10-10 15:17:16,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:17:16,240 INFO L225 Difference]: With dead ends: 74 [2018-10-10 15:17:16,240 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:17:16,242 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=517, Invalid=1933, Unknown=0, NotChecked=0, Total=2450 [2018-10-10 15:17:16,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:17:16,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:17:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:17:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:17:16,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2018-10-10 15:17:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:17:16,244 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:17:16,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-10 15:17:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:17:16,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:17:16,250 INFO L202 PluginConnector]: Adding new model 960521-1_1_false-valid-free.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:17:16 BoogieIcfgContainer [2018-10-10 15:17:16,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:17:16,251 INFO L168 Benchmark]: Toolchain (without parser) took 7715.20 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 25.7 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 30.9 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:17:16,252 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. [2018-10-10 15:17:16,253 INFO L168 Benchmark]: Boogie Preprocessor took 67.76 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:17:16,254 INFO L168 Benchmark]: RCFGBuilder took 661.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:17:16,255 INFO L168 Benchmark]: TraceAbstraction took 6981.32 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 25.7 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -833.4 kB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:17:16,258 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 67.76 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 661.36 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 6981.32 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 25.7 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -833.4 kB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 147]: 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, 83 locations, 1 error locations. SAFE Result, 6.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 105 SDtfs, 616 SDslu, 393 SDs, 0 SdLazy, 596 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, 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, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 79296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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_false-valid-free.i_12.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-17-16-270.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-free.i_12.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-17-16-270.csv Received shutdown request...