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/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:36:45,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:36:45,764 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:36:45,782 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:36:45,782 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:36:45,783 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:36:45,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:36:45,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:36:45,789 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:36:45,790 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:36:45,793 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:36:45,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:36:45,794 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:36:45,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:36:45,803 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:36:45,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:36:45,804 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:36:45,809 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:36:45,815 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:36:45,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:36:45,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:36:45,820 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:36:45,822 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:36:45,833 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 15:36:45,841 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:36:45,842 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:36:45,843 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:36:45,843 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:36:45,843 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:36:45,843 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:36:45,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:36:45,844 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:36:45,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:36:45,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:36:45,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:36:45,845 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:36:45,845 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:36:45,846 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:36:45,846 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:36:45,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:36:45,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:36:45,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:36:45,937 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:36:45,937 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:36:45,939 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-10 15:36:45,939 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-10 15:36:46,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:36:46,018 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:36:46,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:36:46,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:36:46,019 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:36:46,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/1) ... [2018-10-10 15:36:46,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/1) ... [2018-10-10 15:36:46,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/1) ... [2018-10-10 15:36:46,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/1) ... [2018-10-10 15:36:46,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/1) ... [2018-10-10 15:36:46,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/1) ... [2018-10-10 15:36:46,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/1) ... [2018-10-10 15:36:46,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:36:46,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:36:46,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:36:46,093 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:36:46,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (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 15:36:46,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:36:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:36:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:36:46,724 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:36:46,725 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:46 BoogieIcfgContainer [2018-10-10 15:36:46,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:36:46,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:36:46,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:36:46,730 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:36:46,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:46" (1/2) ... [2018-10-10 15:36:46,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dd2806 and model type lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:36:46, skipping insertion in model container [2018-10-10 15:36:46,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:46" (2/2) ... [2018-10-10 15:36:46,733 INFO L112 eAbstractionObserver]: Analyzing ICFG lis-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-10 15:36:46,743 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:36:46,751 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:36:46,769 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:36:46,798 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:36:46,799 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:36:46,799 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:36:46,799 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:36:46,800 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:36:46,800 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:36:46,800 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:36:46,800 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:36:46,800 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:36:46,820 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-10-10 15:36:46,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-10 15:36:46,831 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:46,832 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] [2018-10-10 15:36:46,834 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:46,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:46,840 INFO L82 PathProgramCache]: Analyzing trace with hash -238183958, now seen corresponding path program 1 times [2018-10-10 15:36:46,904 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:47,720 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 15:36:47,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:47,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:36:47,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:36:47,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:36:47,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:36:47,749 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 12 states. [2018-10-10 15:36:48,445 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-10 15:36:49,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:49,064 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-10-10 15:36:49,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:36:49,066 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2018-10-10 15:36:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:49,079 INFO L225 Difference]: With dead ends: 94 [2018-10-10 15:36:49,080 INFO L226 Difference]: Without dead ends: 94 [2018-10-10 15:36:49,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2018-10-10 15:36:49,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-10-10 15:36:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2018-10-10 15:36:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-10-10 15:36:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-10-10 15:36:49,129 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 67 [2018-10-10 15:36:49,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:49,130 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-10-10 15:36:49,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:36:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-10-10 15:36:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-10 15:36:49,134 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:49,135 INFO L375 BasicCegarLoop]: trace histogram [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 15:36:49,135 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:49,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:49,136 INFO L82 PathProgramCache]: Analyzing trace with hash -2121530380, now seen corresponding path program 1 times [2018-10-10 15:36:49,137 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:49,604 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:49,604 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:49,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-10 15:36:49,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:36:49,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:36:49,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:36:49,608 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 12 states. [2018-10-10 15:36:51,073 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-10 15:36:51,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:51,222 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-10-10 15:36:51,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:36:51,223 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2018-10-10 15:36:51,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:51,226 INFO L225 Difference]: With dead ends: 118 [2018-10-10 15:36:51,227 INFO L226 Difference]: Without dead ends: 118 [2018-10-10 15:36:51,229 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2018-10-10 15:36:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-10-10 15:36:51,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2018-10-10 15:36:51,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-10-10 15:36:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-10-10 15:36:51,240 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 87 [2018-10-10 15:36:51,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:51,241 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-10-10 15:36:51,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:36:51,241 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-10-10 15:36:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-10 15:36:51,243 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:51,244 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-10 15:36:51,244 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:51,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:51,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1712651010, now seen corresponding path program 2 times [2018-10-10 15:36:51,245 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:51,722 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:51,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-10 15:36:51,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 15:36:51,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 15:36:51,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:36:51,724 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 14 states. [2018-10-10 15:36:52,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:52,633 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-10-10 15:36:52,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 15:36:52,634 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 107 [2018-10-10 15:36:52,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:52,636 INFO L225 Difference]: With dead ends: 116 [2018-10-10 15:36:52,636 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:36:52,637 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=579, Unknown=0, NotChecked=0, Total=812 [2018-10-10 15:36:52,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:36:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:36:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:36:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:36:52,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2018-10-10 15:36:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:52,639 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:36:52,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 15:36:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:36:52,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:36:52,645 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:36:52 BoogieIcfgContainer [2018-10-10 15:36:52,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:36:52,646 INFO L168 Benchmark]: Toolchain (without parser) took 6629.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 404.5 MB). Peak memory consumption was 404.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:52,648 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:36:52,648 INFO L168 Benchmark]: Boogie Preprocessor took 71.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:36:52,649 INFO L168 Benchmark]: RCFGBuilder took 634.74 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:52,650 INFO L168 Benchmark]: TraceAbstraction took 5918.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 372.8 MB). Peak memory consumption was 372.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:52,656 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 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 634.74 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5918.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 372.8 MB). Peak memory consumption was 372.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 149]: 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, 77 locations, 1 error locations. SAFE Result, 5.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 195 SDtfs, 1099 SDslu, 806 SDs, 0 SdLazy, 657 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 165106 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/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-36-52-668.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-36-52-668.csv Received shutdown request...