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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:39:50,031 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:39:50,033 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:39:50,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:39:50,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:39:50,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:39:50,048 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:39:50,050 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:39:50,052 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:39:50,053 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:39:50,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:39:50,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:39:50,055 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:39:50,056 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:39:50,057 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:39:50,058 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:39:50,059 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:39:50,064 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:39:50,066 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:39:50,072 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:39:50,073 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:39:50,077 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:39:50,085 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:39:50,086 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:39:50,086 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:39:50,087 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:39:50,090 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:39:50,091 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:39:50,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:39:50,095 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:39:50,095 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:39:50,096 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:39:50,096 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:39:50,096 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:39:50,097 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:39:50,101 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:39:50,101 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 16:39:50,118 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:39:50,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:39:50,123 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:39:50,124 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:39:50,124 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:39:50,124 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:39:50,125 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:39:50,125 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:39:50,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:39:50,126 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:39:50,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:39:50,127 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:39:50,127 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:39:50,128 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:39:50,128 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:39:50,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:39:50,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:39:50,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:39:50,199 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:39:50,200 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:39:50,201 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-14 16:39:50,201 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-14 16:39:50,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:39:50,273 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:39:50,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:39:50,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:39:50,273 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:39:50,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... [2018-10-14 16:39:50,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... [2018-10-14 16:39:50,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... [2018-10-14 16:39:50,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... [2018-10-14 16:39:50,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... [2018-10-14 16:39:50,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... [2018-10-14 16:39:50,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... [2018-10-14 16:39:50,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:39:50,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:39:50,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:39:50,340 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:39:50,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-14 16:39:50,421 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:39:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:39:50,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:39:51,037 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:39:51,038 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:51 BoogieIcfgContainer [2018-10-14 16:39:51,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:39:51,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:39:51,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:39:51,043 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:39:51,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:50" (1/2) ... [2018-10-14 16:39:51,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdc9300 and model type cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:39:51, skipping insertion in model container [2018-10-14 16:39:51,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:51" (2/2) ... [2018-10-14 16:39:51,046 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-14 16:39:51,057 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:39:51,068 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:39:51,086 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:39:51,113 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:39:51,114 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:39:51,114 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:39:51,114 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:39:51,115 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:39:51,115 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:39:51,115 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:39:51,115 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:39:51,115 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:39:51,133 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-10-14 16:39:51,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-14 16:39:51,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:51,146 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] [2018-10-14 16:39:51,148 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:51,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:51,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1037118093, now seen corresponding path program 1 times [2018-10-14 16:39:51,205 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:39:51,907 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 16:39:51,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:39:51,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-14 16:39:51,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-14 16:39:51,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-14 16:39:51,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-14 16:39:51,936 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 13 states. [2018-10-14 16:39:52,694 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-14 16:39:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:39:53,644 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-10-14 16:39:53,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-14 16:39:53,648 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2018-10-14 16:39:53,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:39:53,670 INFO L225 Difference]: With dead ends: 120 [2018-10-14 16:39:53,670 INFO L226 Difference]: Without dead ends: 120 [2018-10-14 16:39:53,674 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-14 16:39:53,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-10-14 16:39:53,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 94. [2018-10-14 16:39:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-10-14 16:39:53,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-10-14 16:39:53,741 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 65 [2018-10-14 16:39:53,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:39:53,742 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-10-14 16:39:53,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-14 16:39:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-10-14 16:39:53,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-14 16:39:53,748 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:53,750 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:39:53,750 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:53,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:53,751 INFO L82 PathProgramCache]: Analyzing trace with hash 2049876257, now seen corresponding path program 1 times [2018-10-14 16:39:53,753 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:39:54,475 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2018-10-14 16:39:54,610 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-10-14 16:39:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:39:55,214 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:39:55,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-14 16:39:55,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-14 16:39:55,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-14 16:39:55,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2018-10-14 16:39:55,218 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 21 states. [2018-10-14 16:39:56,430 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-14 16:39:56,702 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-14 16:39:57,019 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2018-10-14 16:39:57,321 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-14 16:39:57,683 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-10-14 16:39:58,070 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2018-10-14 16:39:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:39:58,962 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-10-14 16:39:58,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-14 16:39:58,963 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 93 [2018-10-14 16:39:58,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:39:58,969 INFO L225 Difference]: With dead ends: 148 [2018-10-14 16:39:58,969 INFO L226 Difference]: Without dead ends: 148 [2018-10-14 16:39:58,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2018-10-14 16:39:58,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-10-14 16:39:58,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 122. [2018-10-14 16:39:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-10-14 16:39:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-10-14 16:39:58,995 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 93 [2018-10-14 16:39:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:39:58,995 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-10-14 16:39:58,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-14 16:39:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-10-14 16:39:58,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-14 16:39:58,999 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:59,000 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-14 16:39:59,000 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:59,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:59,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1137886257, now seen corresponding path program 2 times [2018-10-14 16:39:59,002 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:40:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:40:01,287 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:40:01,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-14 16:40:01,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-14 16:40:01,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-14 16:40:01,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1181, Unknown=0, NotChecked=0, Total=1260 [2018-10-14 16:40:01,290 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 36 states. [2018-10-14 16:40:02,990 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-10-14 16:40:03,404 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-14 16:40:03,702 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2018-10-14 16:40:04,046 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2018-10-14 16:40:04,442 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2018-10-14 16:40:04,905 WARN L179 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2018-10-14 16:40:05,444 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2018-10-14 16:40:06,040 WARN L179 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2018-10-14 16:40:06,503 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2018-10-14 16:40:07,197 WARN L179 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2018-10-14 16:40:07,729 WARN L179 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 134 [2018-10-14 16:40:08,458 WARN L179 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 141 [2018-10-14 16:40:09,229 WARN L179 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2018-10-14 16:40:09,726 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-14 16:40:10,004 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-10-14 16:40:10,210 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-14 16:40:10,530 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-10-14 16:40:10,769 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2018-10-14 16:40:11,050 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-10-14 16:40:11,361 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2018-10-14 16:40:11,738 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2018-10-14 16:40:12,074 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2018-10-14 16:40:12,371 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-14 16:40:12,749 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-10-14 16:40:13,079 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-14 16:40:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:40:13,666 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2018-10-14 16:40:13,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-14 16:40:13,667 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 121 [2018-10-14 16:40:13,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:40:13,669 INFO L225 Difference]: With dead ends: 176 [2018-10-14 16:40:13,669 INFO L226 Difference]: Without dead ends: 176 [2018-10-14 16:40:13,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=891, Invalid=4659, Unknown=0, NotChecked=0, Total=5550 [2018-10-14 16:40:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-10-14 16:40:13,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 150. [2018-10-14 16:40:13,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-14 16:40:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-10-14 16:40:13,684 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 121 [2018-10-14 16:40:13,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:40:13,685 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-10-14 16:40:13,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-14 16:40:13,685 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-10-14 16:40:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-14 16:40:13,688 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:40:13,688 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-10-14 16:40:13,688 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:40:13,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:40:13,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1492002173, now seen corresponding path program 3 times [2018-10-14 16:40:13,689 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:40:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:40:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-14 16:40:15,522 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:40:15,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-10-14 16:40:15,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-10-14 16:40:15,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-10-14 16:40:15,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1461, Unknown=0, NotChecked=0, Total=1560 [2018-10-14 16:40:15,524 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 40 states. [2018-10-14 16:40:16,603 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-14 16:40:16,901 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-14 16:40:17,228 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-10-14 16:40:17,487 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-14 16:40:17,720 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-14 16:40:18,084 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-14 16:40:18,333 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-14 16:40:18,825 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-10-14 16:40:19,132 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2018-10-14 16:40:19,464 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 103 [2018-10-14 16:40:19,899 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 120 [2018-10-14 16:40:20,375 WARN L179 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 122 [2018-10-14 16:40:20,915 WARN L179 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 125 [2018-10-14 16:40:21,423 WARN L179 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 128 [2018-10-14 16:40:21,956 WARN L179 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 133 [2018-10-14 16:40:22,407 WARN L179 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 127 [2018-10-14 16:40:22,657 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2018-10-14 16:40:22,884 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-14 16:40:23,074 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-10-14 16:40:23,244 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2018-10-14 16:40:23,515 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2018-10-14 16:40:23,764 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2018-10-14 16:40:24,110 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 94 [2018-10-14 16:40:24,549 WARN L179 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 99 [2018-10-14 16:40:25,213 WARN L179 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2018-10-14 16:40:25,569 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-14 16:40:25,835 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-10-14 16:40:26,084 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2018-10-14 16:40:26,303 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-14 16:40:26,495 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-10-14 16:40:26,797 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-14 16:40:27,073 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2018-10-14 16:40:27,370 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2018-10-14 16:40:27,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:40:27,384 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-10-14 16:40:27,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-10-14 16:40:27,385 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 149 [2018-10-14 16:40:27,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:40:27,386 INFO L225 Difference]: With dead ends: 148 [2018-10-14 16:40:27,386 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:40:27,389 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=1370, Invalid=5602, Unknown=0, NotChecked=0, Total=6972 [2018-10-14 16:40:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:40:27,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:40:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:40:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:40:27,390 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2018-10-14 16:40:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:40:27,390 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:40:27,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-10-14 16:40:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:40:27,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:40:27,395 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:40:27 BoogieIcfgContainer [2018-10-14 16:40:27,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:40:27,396 INFO L168 Benchmark]: Toolchain (without parser) took 37124.34 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 360.7 MB). Free memory was 1.5 GB in the beginning and 904.8 MB in the end (delta: 563.5 MB). Peak memory consumption was 924.2 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:27,397 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 16:40:27,398 INFO L168 Benchmark]: Boogie Preprocessor took 65.89 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 16:40:27,399 INFO L168 Benchmark]: RCFGBuilder took 698.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:27,399 INFO L168 Benchmark]: TraceAbstraction took 36356.19 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 360.7 MB). Free memory was 1.4 GB in the beginning and 904.8 MB in the end (delta: 531.7 MB). Peak memory consumption was 892.5 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:27,403 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 0.19 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 65.89 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 698.89 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 36356.19 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 360.7 MB). Free memory was 1.4 GB in the beginning and 904.8 MB in the end (delta: 531.7 MB). Peak memory consumption was 892.5 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, 85 locations, 1 error locations. SAFE Result, 36.2s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 29.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 287 SDtfs, 4199 SDslu, 3542 SDs, 0 SdLazy, 3819 SolverSat, 256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 28.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred 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, 78 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 729204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/178 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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-40-27-423.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-40-27-423.csv Received shutdown request...