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/test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:15:23,091 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:15:23,094 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:15:23,110 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-12 21:15:23,164 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 21:15:23,179 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:15:23,179 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:15:23,180 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:15:23,180 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:15:23,180 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:15:23,180 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:15:23,181 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:15:23,181 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:15:23,182 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:15:23,182 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:15:23,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:15:23,182 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:15:23,182 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:15:23,183 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:15:23,184 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:15:23,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:15:23,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:15:23,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:15:23,280 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:15:23,281 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:15:23,281 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl [2018-10-12 21:15:23,282 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl' [2018-10-12 21:15:23,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:15:23,382 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:15:23,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:15:23,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:15:23,383 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:15:23,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/1) ... [2018-10-12 21:15:23,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/1) ... [2018-10-12 21:15:23,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/1) ... [2018-10-12 21:15:23,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/1) ... [2018-10-12 21:15:23,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/1) ... [2018-10-12 21:15:23,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/1) ... [2018-10-12 21:15:23,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/1) ... [2018-10-12 21:15:23,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:15:23,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:15:23,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:15:23,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:15:23,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (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 21:15:23,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:15:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:15:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:15:24,399 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:15:24,400 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:15:24 BoogieIcfgContainer [2018-10-12 21:15:24,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:15:24,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:15:24,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:15:24,405 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:15:24,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:15:23" (1/2) ... [2018-10-12 21:15:24,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cf8bb4 and model type test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:15:24, skipping insertion in model container [2018-10-12 21:15:24,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:15:24" (2/2) ... [2018-10-12 21:15:24,408 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl [2018-10-12 21:15:24,418 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:15:24,428 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:15:24,446 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:15:24,475 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:15:24,476 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:15:24,476 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:15:24,477 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:15:24,477 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:15:24,477 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:15:24,477 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:15:24,477 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:15:24,477 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:15:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2018-10-12 21:15:24,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-12 21:15:24,513 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:15:24,515 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:24,516 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:15:24,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:15:24,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1370197862, now seen corresponding path program 1 times [2018-10-12 21:15:24,588 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:15:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:15:24,984 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 21:15:24,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:15:24,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-12 21:15:24,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-12 21:15:25,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-12 21:15:25,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-12 21:15:25,013 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 4 states. [2018-10-12 21:15:25,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:15:25,152 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-10-12 21:15:25,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-12 21:15:25,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2018-10-12 21:15:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:15:25,174 INFO L225 Difference]: With dead ends: 128 [2018-10-12 21:15:25,175 INFO L226 Difference]: Without dead ends: 128 [2018-10-12 21:15:25,177 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-12 21:15:25,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-10-12 21:15:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2018-10-12 21:15:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-12 21:15:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-10-12 21:15:25,226 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 122 [2018-10-12 21:15:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:15:25,227 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-10-12 21:15:25,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-12 21:15:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-10-12 21:15:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-12 21:15:25,230 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:15:25,231 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:25,234 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:15:25,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:15:25,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1653011681, now seen corresponding path program 1 times [2018-10-12 21:15:25,236 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:15:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:15:25,446 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 21:15:25,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:15:25,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-12 21:15:25,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-12 21:15:25,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-12 21:15:25,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-12 21:15:25,455 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 5 states. [2018-10-12 21:15:25,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:15:25,594 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-10-12 21:15:25,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-12 21:15:25,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-10-12 21:15:25,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:15:25,598 INFO L225 Difference]: With dead ends: 131 [2018-10-12 21:15:25,598 INFO L226 Difference]: Without dead ends: 131 [2018-10-12 21:15:25,600 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-12 21:15:25,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-10-12 21:15:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2018-10-12 21:15:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-10-12 21:15:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2018-10-12 21:15:25,613 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 125 [2018-10-12 21:15:25,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:15:25,614 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2018-10-12 21:15:25,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-12 21:15:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2018-10-12 21:15:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-12 21:15:25,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:15:25,617 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:25,617 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:15:25,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:15:25,618 INFO L82 PathProgramCache]: Analyzing trace with hash -624310074, now seen corresponding path program 2 times [2018-10-12 21:15:25,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:15:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:15:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:15:25,805 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:15:25,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-12 21:15:25,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-12 21:15:25,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-12 21:15:25,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-12 21:15:25,807 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand 6 states. [2018-10-12 21:15:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:15:25,958 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-10-12 21:15:25,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-12 21:15:25,961 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-10-12 21:15:25,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:15:25,964 INFO L225 Difference]: With dead ends: 132 [2018-10-12 21:15:25,964 INFO L226 Difference]: Without dead ends: 132 [2018-10-12 21:15:25,964 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-12 21:15:25,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-10-12 21:15:25,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-10-12 21:15:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-10-12 21:15:25,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-10-12 21:15:25,975 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 128 [2018-10-12 21:15:25,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:15:25,975 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-10-12 21:15:25,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-12 21:15:25,976 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-10-12 21:15:25,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-12 21:15:25,978 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:15:25,978 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:25,979 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:15:25,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:15:25,979 INFO L82 PathProgramCache]: Analyzing trace with hash 833607103, now seen corresponding path program 3 times [2018-10-12 21:15:25,980 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:15:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:15:27,105 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-10-12 21:15:28,334 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 27 [2018-10-12 21:15:28,592 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 27 [2018-10-12 21:15:28,752 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2018-10-12 21:15:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:15:29,332 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:15:29,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-12 21:15:29,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-12 21:15:29,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-12 21:15:29,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2018-10-12 21:15:29,335 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 27 states. [2018-10-12 21:15:31,600 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2018-10-12 21:15:32,274 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-10-12 21:15:32,716 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2018-10-12 21:15:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:15:33,202 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-10-12 21:15:33,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-12 21:15:33,210 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 131 [2018-10-12 21:15:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:15:33,212 INFO L225 Difference]: With dead ends: 147 [2018-10-12 21:15:33,212 INFO L226 Difference]: Without dead ends: 135 [2018-10-12 21:15:33,216 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=445, Invalid=1811, Unknown=0, NotChecked=0, Total=2256 [2018-10-12 21:15:33,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-10-12 21:15:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-10-12 21:15:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-10-12 21:15:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2018-10-12 21:15:33,237 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 131 [2018-10-12 21:15:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:15:33,237 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2018-10-12 21:15:33,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-12 21:15:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2018-10-12 21:15:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-12 21:15:33,247 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:15:33,247 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:33,248 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:15:33,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:15:33,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1360037338, now seen corresponding path program 4 times [2018-10-12 21:15:33,249 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:15:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:15:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:15:33,555 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:15:33,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-12 21:15:33,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-12 21:15:33,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-12 21:15:33,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-12 21:15:33,556 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand 7 states. [2018-10-12 21:15:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:15:34,379 INFO L93 Difference]: Finished difference Result 109 states and 108 transitions. [2018-10-12 21:15:34,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-12 21:15:34,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2018-10-12 21:15:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:15:34,380 INFO L225 Difference]: With dead ends: 109 [2018-10-12 21:15:34,381 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:15:34,381 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-12 21:15:34,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:15:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:15:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:15:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:15:34,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2018-10-12 21:15:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:15:34,382 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:15:34,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-12 21:15:34,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:15:34,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:15:34,391 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:15:34 BoogieIcfgContainer [2018-10-12 21:15:34,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:15:34,392 INFO L168 Benchmark]: Toolchain (without parser) took 11011.39 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 36.2 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 326.3 MB). Peak memory consumption was 362.4 MB. Max. memory is 7.1 GB. [2018-10-12 21:15:34,393 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-12 21:15:34,395 INFO L168 Benchmark]: Boogie Preprocessor took 90.42 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. [2018-10-12 21:15:34,396 INFO L168 Benchmark]: RCFGBuilder took 926.91 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. [2018-10-12 21:15:34,397 INFO L168 Benchmark]: TraceAbstraction took 9989.98 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 36.2 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 294.6 MB). Peak memory consumption was 330.7 MB. Max. memory is 7.1 GB. [2018-10-12 21:15:34,403 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 0.20 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 90.42 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 926.91 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 9989.98 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 36.2 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 294.6 MB). Peak memory consumption was 330.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 194]: 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, 127 locations, 1 error locations. SAFE Result, 9.9s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 5.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 502 SDtfs, 851 SDslu, 1502 SDs, 0 SdLazy, 1487 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 13 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=4, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 640 NumberOfCodeBlocks, 640 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 301379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 15/40 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/test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-15-34-417.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-15-34-417.csv Received shutdown request...