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/diff-alloca_true-valid-memsafety_true-termination.i_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:32:40,641 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:32:40,643 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:32:40,655 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:32:40,656 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:32:40,657 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:32:40,658 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:32:40,660 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:32:40,662 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:32:40,663 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:32:40,664 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:32:40,679 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:32:40,680 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:32:40,681 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:32:40,682 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:32:40,682 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:32:40,683 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:32:40,684 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:32:40,685 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:32:40,685 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 15:32:40,688 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 15:32:40,698 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:32:40,698 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:32:40,699 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:32:40,699 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:32:40,699 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:32:40,699 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:32:40,700 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:32:40,700 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:32:40,701 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:32:40,701 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:32:40,701 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:32:40,701 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:32:40,701 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:32:40,702 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:32:40,702 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:32:40,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:32:40,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:32:40,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:32:40,767 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:32:40,768 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:32:40,768 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_11.bpl [2018-10-10 15:32:40,769 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_11.bpl' [2018-10-10 15:32:40,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:32:40,842 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:32:40,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:32:40,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:32:40,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:32:40,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/1) ... [2018-10-10 15:32:40,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/1) ... [2018-10-10 15:32:40,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/1) ... [2018-10-10 15:32:40,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/1) ... [2018-10-10 15:32:40,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/1) ... [2018-10-10 15:32:40,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/1) ... [2018-10-10 15:32:40,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/1) ... [2018-10-10 15:32:40,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:32:40,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:32:40,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:32:40,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:32:40,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (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 15:32:40,966 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:32:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:32:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:32:41,577 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:32:41,578 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:32:41 BoogieIcfgContainer [2018-10-10 15:32:41,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:32:41,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:32:41,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:32:41,582 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:32:41,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:40" (1/2) ... [2018-10-10 15:32:41,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402687f2 and model type diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:32:41, skipping insertion in model container [2018-10-10 15:32:41,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:32:41" (2/2) ... [2018-10-10 15:32:41,586 INFO L112 eAbstractionObserver]: Analyzing ICFG diff-alloca_true-valid-memsafety_true-termination.i_11.bpl [2018-10-10 15:32:41,596 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:32:41,605 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:32:41,623 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:32:41,654 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:32:41,655 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:32:41,655 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:32:41,655 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:32:41,656 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:32:41,656 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:32:41,656 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:32:41,656 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:32:41,656 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:32:41,681 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2018-10-10 15:32:41,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-10 15:32:41,708 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:32:41,710 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] [2018-10-10 15:32:41,711 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:32:41,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:32:41,720 INFO L82 PathProgramCache]: Analyzing trace with hash -193944939, now seen corresponding path program 1 times [2018-10-10 15:32:41,785 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:32:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:32:42,471 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:32:42,965 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 15:32:42,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:32:42,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-10 15:32:42,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-10 15:32:42,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-10 15:32:42,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-10-10 15:32:42,995 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 16 states. [2018-10-10 15:32:44,765 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-10-10 15:32:45,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:32:45,151 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-10 15:32:45,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-10 15:32:45,153 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 74 [2018-10-10 15:32:45,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:32:45,171 INFO L225 Difference]: With dead ends: 108 [2018-10-10 15:32:45,171 INFO L226 Difference]: Without dead ends: 108 [2018-10-10 15:32:45,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2018-10-10 15:32:45,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-10 15:32:45,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2018-10-10 15:32:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-10-10 15:32:45,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-10-10 15:32:45,230 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 74 [2018-10-10 15:32:45,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:32:45,232 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-10-10 15:32:45,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-10 15:32:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-10-10 15:32:45,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-10 15:32:45,239 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:32:45,239 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:32:45,240 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:32:45,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:32:45,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1783367066, now seen corresponding path program 1 times [2018-10-10 15:32:45,243 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:32:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:32:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:32:45,973 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:32:45,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-10 15:32:45,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-10 15:32:45,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-10 15:32:45,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2018-10-10 15:32:45,977 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 21 states. [2018-10-10 15:32:47,366 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-10-10 15:32:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:32:48,080 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-10-10 15:32:48,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-10 15:32:48,081 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 97 [2018-10-10 15:32:48,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:32:48,084 INFO L225 Difference]: With dead ends: 134 [2018-10-10 15:32:48,084 INFO L226 Difference]: Without dead ends: 134 [2018-10-10 15:32:48,086 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=299, Invalid=1341, Unknown=0, NotChecked=0, Total=1640 [2018-10-10 15:32:48,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-10-10 15:32:48,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 121. [2018-10-10 15:32:48,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-10-10 15:32:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2018-10-10 15:32:48,099 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 97 [2018-10-10 15:32:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:32:48,100 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2018-10-10 15:32:48,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-10 15:32:48,100 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2018-10-10 15:32:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-10 15:32:48,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:32:48,103 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-10 15:32:48,103 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:32:48,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:32:48,104 INFO L82 PathProgramCache]: Analyzing trace with hash 2112120693, now seen corresponding path program 2 times [2018-10-10 15:32:48,105 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:32:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:32:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:32:48,789 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:32:48,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-10 15:32:48,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-10 15:32:48,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-10 15:32:48,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2018-10-10 15:32:48,791 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand 24 states. [2018-10-10 15:32:51,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:32:51,804 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-10-10 15:32:51,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-10 15:32:51,811 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 120 [2018-10-10 15:32:51,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:32:51,812 INFO L225 Difference]: With dead ends: 132 [2018-10-10 15:32:51,812 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:32:51,814 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=485, Invalid=2065, Unknown=0, NotChecked=0, Total=2550 [2018-10-10 15:32:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:32:51,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:32:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:32:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:32:51,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 120 [2018-10-10 15:32:51,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:32:51,815 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:32:51,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-10 15:32:51,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:32:51,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:32:51,822 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:32:51 BoogieIcfgContainer [2018-10-10 15:32:51,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:32:51,823 INFO L168 Benchmark]: Toolchain (without parser) took 10982.36 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 33.0 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 379.7 MB). Peak memory consumption was 412.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:32:51,825 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 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 15:32:51,825 INFO L168 Benchmark]: Boogie Preprocessor took 59.81 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 15:32:51,826 INFO L168 Benchmark]: RCFGBuilder took 674.96 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 15:32:51,827 INFO L168 Benchmark]: TraceAbstraction took 10243.36 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 33.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 348.0 MB). Peak memory consumption was 381.0 MB. Max. memory is 7.1 GB. [2018-10-10 15:32:51,833 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 0.16 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 59.81 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 674.96 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 10243.36 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 33.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 348.0 MB). Peak memory consumption was 381.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 1 error locations. SAFE Result, 10.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 7.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 1608 SDslu, 1687 SDs, 0 SdLazy, 1502 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=2, 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, 3 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 286722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/59 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/diff-alloca_true-valid-memsafety_true-termination.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-32-51-848.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-32-51-848.csv Received shutdown request...