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/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:50:33,411 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:50:33,414 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:50:33,431 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:50:33,431 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:50:33,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:50:33,435 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:50:33,437 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:50:33,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:50:33,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:50:33,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-12 20:50:33,486 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:50:33,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:50:33,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:50:33,500 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:50:33,500 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:50:33,501 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:50:33,501 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:50:33,502 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:50:33,502 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:50:33,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:50:33,503 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:50:33,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:50:33,503 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:50:33,503 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:50:33,504 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:50:33,504 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:50:33,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:50:33,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:50:33,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:50:33,562 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:50:33,563 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:50:33,564 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl [2018-10-12 20:50:33,564 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl' [2018-10-12 20:50:33,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:50:33,620 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:50:33,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:50:33,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:50:33,621 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:50:33,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/1) ... [2018-10-12 20:50:33,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/1) ... [2018-10-12 20:50:33,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/1) ... [2018-10-12 20:50:33,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/1) ... [2018-10-12 20:50:33,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/1) ... [2018-10-12 20:50:33,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/1) ... [2018-10-12 20:50:33,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/1) ... [2018-10-12 20:50:33,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:50:33,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:50:33,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:50:33,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:50:33,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (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 [2018-10-12 20:50:33,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:50:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:50:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:50:34,363 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:50:34,364 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:50:34 BoogieIcfgContainer [2018-10-12 20:50:34,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:50:34,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:50:34,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:50:34,370 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:50:34,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:33" (1/2) ... [2018-10-12 20:50:34,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75501a82 and model type ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:50:34, skipping insertion in model container [2018-10-12 20:50:34,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:50:34" (2/2) ... [2018-10-12 20:50:34,373 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl [2018-10-12 20:50:34,383 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:50:34,395 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:50:34,413 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:50:34,440 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:50:34,441 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:50:34,441 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:50:34,441 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:50:34,441 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:50:34,442 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:50:34,442 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:50:34,442 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:50:34,442 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:50:34,460 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-10-12 20:50:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-12 20:50:34,471 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:50:34,472 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] [2018-10-12 20:50:34,473 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:50:34,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:50:34,478 INFO L82 PathProgramCache]: Analyzing trace with hash -607412056, now seen corresponding path program 1 times [2018-10-12 20:50:34,529 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:50:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:50:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:50:34,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:50:34,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-12 20:50:34,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-12 20:50:34,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-12 20:50:34,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-12 20:50:34,772 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 6 states. [2018-10-12 20:50:35,105 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-12 20:50:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:50:35,305 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-10-12 20:50:35,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-12 20:50:35,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-10-12 20:50:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:50:35,321 INFO L225 Difference]: With dead ends: 73 [2018-10-12 20:50:35,322 INFO L226 Difference]: Without dead ends: 73 [2018-10-12 20:50:35,324 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-12 20:50:35,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-12 20:50:35,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 60. [2018-10-12 20:50:35,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-10-12 20:50:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-10-12 20:50:35,387 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 44 [2018-10-12 20:50:35,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:50:35,388 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-10-12 20:50:35,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-12 20:50:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-10-12 20:50:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-12 20:50:35,390 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:50:35,390 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] [2018-10-12 20:50:35,391 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:50:35,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:50:35,392 INFO L82 PathProgramCache]: Analyzing trace with hash -71935175, now seen corresponding path program 1 times [2018-10-12 20:50:35,396 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:50:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:50:35,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:50:35,621 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:50:35,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-12 20:50:35,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-12 20:50:35,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-12 20:50:35,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-12 20:50:35,625 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 8 states. [2018-10-12 20:50:35,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:50:35,967 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-10-12 20:50:35,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-12 20:50:35,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-10-12 20:50:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:50:35,971 INFO L225 Difference]: With dead ends: 75 [2018-10-12 20:50:35,971 INFO L226 Difference]: Without dead ends: 75 [2018-10-12 20:50:35,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2018-10-12 20:50:35,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-10-12 20:50:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-10-12 20:50:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-10-12 20:50:35,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-10-12 20:50:35,984 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 59 [2018-10-12 20:50:35,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:50:35,985 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-10-12 20:50:35,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-12 20:50:35,985 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-10-12 20:50:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-12 20:50:35,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:50:35,988 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-12 20:50:35,988 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:50:35,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:50:35,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1990259576, now seen corresponding path program 2 times [2018-10-12 20:50:35,990 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:50:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:50:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-12 20:50:36,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:50:36,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-12 20:50:36,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-12 20:50:36,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-12 20:50:36,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-12 20:50:36,244 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 7 states. [2018-10-12 20:50:36,601 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-12 20:50:36,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:50:36,603 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-10-12 20:50:36,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-12 20:50:36,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2018-10-12 20:50:36,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:50:36,604 INFO L225 Difference]: With dead ends: 73 [2018-10-12 20:50:36,605 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:50:36,607 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-10-12 20:50:36,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:50:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:50:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:50:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:50:36,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2018-10-12 20:50:36,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:50:36,610 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:50:36,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-12 20:50:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:50:36,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:50:36,617 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:50:36 BoogieIcfgContainer [2018-10-12 20:50:36,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:50:36,618 INFO L168 Benchmark]: Toolchain (without parser) took 2998.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2018-10-12 20:50:36,620 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-10-12 20:50:36,623 INFO L168 Benchmark]: Boogie Preprocessor took 53.27 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. [2018-10-12 20:50:36,624 INFO L168 Benchmark]: RCFGBuilder took 689.84 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-12 20:50:36,625 INFO L168 Benchmark]: TraceAbstraction took 2251.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2018-10-12 20:50:36,630 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.27 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 689.84 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2251.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 120]: 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, 61 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 142 SDtfs, 369 SDslu, 284 SDs, 0 SdLazy, 136 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 36363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 17/18 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/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-50-36-653.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-50-36-653.csv Received shutdown request...