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/ArraysOfVariableLength_true-valid-memsafety.c_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:26:32,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:26:32,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:26:32,996 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:26:32,996 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:26:32,998 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:26:32,999 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:26:33,001 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:26:33,003 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:26:33,004 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:26:33,005 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:26:33,005 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:26:33,006 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:26:33,007 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:26:33,009 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:26:33,010 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:26:33,010 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:26:33,013 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:26:33,015 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:26:33,017 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:26:33,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:26:33,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:26:33,023 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:26:33,023 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:26:33,023 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:26:33,024 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:26:33,026 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:26:33,026 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:26:33,027 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:26:33,029 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:26:33,029 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:26:33,030 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:26:33,030 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:26:33,030 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:26:33,031 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:26:33,032 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:26:33,033 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 16:26:33,043 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:26:33,043 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:26:33,044 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:26:33,044 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:26:33,044 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:26:33,045 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:26:33,045 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:26:33,046 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:26:33,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:26:33,046 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:26:33,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:26:33,047 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:26:33,047 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:26:33,048 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:26:33,048 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:26:33,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:26:33,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:26:33,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:26:33,123 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:26:33,123 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:26:33,124 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_6.bpl [2018-10-14 16:26:33,125 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_6.bpl' [2018-10-14 16:26:33,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:26:33,181 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:26:33,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:26:33,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:26:33,182 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:26:33,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/1) ... [2018-10-14 16:26:33,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/1) ... [2018-10-14 16:26:33,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/1) ... [2018-10-14 16:26:33,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/1) ... [2018-10-14 16:26:33,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/1) ... [2018-10-14 16:26:33,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/1) ... [2018-10-14 16:26:33,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/1) ... [2018-10-14 16:26:33,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:26:33,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:26:33,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:26:33,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:26:33,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (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 16:26:33,310 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:26:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:26:33,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:26:33,809 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:26:33,810 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:26:33 BoogieIcfgContainer [2018-10-14 16:26:33,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:26:33,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:26:33,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:26:33,818 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:26:33,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:26:33" (1/2) ... [2018-10-14 16:26:33,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87f72f and model type ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:26:33, skipping insertion in model container [2018-10-14 16:26:33,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:26:33" (2/2) ... [2018-10-14 16:26:33,825 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_true-valid-memsafety.c_6.bpl [2018-10-14 16:26:33,836 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:26:33,846 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:26:33,862 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:26:33,889 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:26:33,890 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:26:33,890 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:26:33,891 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:26:33,891 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:26:33,891 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:26:33,891 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:26:33,891 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:26:33,892 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:26:33,909 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-10-14 16:26:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-14 16:26:33,918 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:26:33,919 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] [2018-10-14 16:26:33,920 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:26:33,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:26:33,926 INFO L82 PathProgramCache]: Analyzing trace with hash -597764634, now seen corresponding path program 1 times [2018-10-14 16:26:33,978 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:26:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:26:34,078 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 16:26:34,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:26:34,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-14 16:26:34,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-14 16:26:34,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-14 16:26:34,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:26:34,101 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2018-10-14 16:26:34,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:26:34,189 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-10-14 16:26:34,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-14 16:26:34,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-10-14 16:26:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:26:34,203 INFO L225 Difference]: With dead ends: 74 [2018-10-14 16:26:34,203 INFO L226 Difference]: Without dead ends: 74 [2018-10-14 16:26:34,205 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:26:34,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-10-14 16:26:34,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 50. [2018-10-14 16:26:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-14 16:26:34,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-10-14 16:26:34,248 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 23 [2018-10-14 16:26:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:26:34,249 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-10-14 16:26:34,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-14 16:26:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-10-14 16:26:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-14 16:26:34,251 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:26:34,251 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] [2018-10-14 16:26:34,251 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:26:34,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:26:34,252 INFO L82 PathProgramCache]: Analyzing trace with hash -6495917, now seen corresponding path program 1 times [2018-10-14 16:26:34,253 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:26:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:26:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:26:34,395 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:26:34,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-14 16:26:34,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-14 16:26:34,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-14 16:26:34,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:26:34,403 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 5 states. [2018-10-14 16:26:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:26:34,803 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-10-14 16:26:34,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-14 16:26:34,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-10-14 16:26:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:26:34,807 INFO L225 Difference]: With dead ends: 100 [2018-10-14 16:26:34,808 INFO L226 Difference]: Without dead ends: 100 [2018-10-14 16:26:34,809 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:26:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-10-14 16:26:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 76. [2018-10-14 16:26:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-10-14 16:26:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-10-14 16:26:34,822 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 49 [2018-10-14 16:26:34,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:26:34,823 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-10-14 16:26:34,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-14 16:26:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-10-14 16:26:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-14 16:26:34,827 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:26:34,827 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:26:34,828 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:26:34,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:26:34,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1419202176, now seen corresponding path program 2 times [2018-10-14 16:26:34,830 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:26:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:26:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-14 16:26:35,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:26:35,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-14 16:26:35,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-14 16:26:35,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-14 16:26:35,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:26:35,134 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 5 states. [2018-10-14 16:26:35,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:26:35,268 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-10-14 16:26:35,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-14 16:26:35,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2018-10-14 16:26:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:26:35,270 INFO L225 Difference]: With dead ends: 74 [2018-10-14 16:26:35,270 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:26:35,271 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:26:35,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:26:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:26:35,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:26:35,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:26:35,272 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2018-10-14 16:26:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:26:35,273 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:26:35,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-14 16:26:35,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:26:35,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:26:35,278 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:26:35 BoogieIcfgContainer [2018-10-14 16:26:35,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:26:35,279 INFO L168 Benchmark]: Toolchain (without parser) took 2099.32 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: 82.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2018-10-14 16:26:35,282 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:26:35,282 INFO L168 Benchmark]: Boogie Preprocessor took 54.82 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 16:26:35,283 INFO L168 Benchmark]: RCFGBuilder took 573.02 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-14 16:26:35,284 INFO L168 Benchmark]: TraceAbstraction took 1467.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:26:35,288 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.82 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 573.02 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1467.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: 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, 51 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 113 SDslu, 191 SDs, 0 SdLazy, 80 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 48 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 29252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 28/29 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/ArraysOfVariableLength_true-valid-memsafety.c_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-26-35-300.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_true-valid-memsafety.c_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-26-35-300.csv Received shutdown request...