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-b8f97f7-m [2018-10-10 15:48:06,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:48:06,713 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:48:06,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-10 15:48:06,790 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 15:48:06,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:48:06,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:48:06,808 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:48:06,809 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:48:06,809 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:48:06,809 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:48:06,812 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:48:06,813 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:48:06,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:48:06,813 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:48:06,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:48:06,813 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:48:06,814 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:48:06,815 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:48:06,816 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:48:06,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:48:06,897 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:48:06,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:48:06,903 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:48:06,904 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:48:06,904 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:48:06,905 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl' [2018-10-10 15:48:06,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:48:06,981 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:48:06,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:48:06,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:48:06,982 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:48:07,012 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 10.10 03:48:06" (1/1) ... [2018-10-10 15:48:07,014 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 10.10 03:48:06" (1/1) ... [2018-10-10 15:48:07,031 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 10.10 03:48:06" (1/1) ... [2018-10-10 15:48:07,032 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 10.10 03:48:06" (1/1) ... [2018-10-10 15:48:07,041 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 10.10 03:48:06" (1/1) ... [2018-10-10 15:48:07,044 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 10.10 03:48:06" (1/1) ... [2018-10-10 15:48:07,046 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 10.10 03:48:06" (1/1) ... [2018-10-10 15:48:07,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:48:07,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:48:07,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:48:07,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:48:07,052 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 10.10 03:48:06" (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 15:48:07,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:48:07,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:48:07,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:48:08,158 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:48:08,159 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 10.10 03:48:08 BoogieIcfgContainer [2018-10-10 15:48:08,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:48:08,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:48:08,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:48:08,164 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:48:08,165 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 10.10 03:48:06" (1/2) ... [2018-10-10 15:48:08,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698f0a48 and model type test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:48:08, skipping insertion in model container [2018-10-10 15:48:08,166 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 10.10 03:48:08" (2/2) ... [2018-10-10 15:48:08,168 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:48:08,178 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:48:08,187 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:48:08,205 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:48:08,234 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:48:08,235 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:48:08,236 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:48:08,236 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:48:08,236 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:48:08,236 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:48:08,236 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:48:08,236 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:48:08,237 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:48:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2018-10-10 15:48:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-10 15:48:08,273 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:48:08,274 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] [2018-10-10 15:48:08,275 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:48:08,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:48:08,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1370197862, now seen corresponding path program 1 times [2018-10-10 15:48:08,338 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:48:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:08,691 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 15:48:08,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:48:08,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:48:08,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:48:08,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:48:08,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:48:08,719 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 4 states. [2018-10-10 15:48:08,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:08,862 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-10-10 15:48:08,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:48:08,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2018-10-10 15:48:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:08,882 INFO L225 Difference]: With dead ends: 128 [2018-10-10 15:48:08,883 INFO L226 Difference]: Without dead ends: 128 [2018-10-10 15:48:08,885 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 [2018-10-10 15:48:08,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-10-10 15:48:08,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2018-10-10 15:48:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-10-10 15:48:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-10-10 15:48:08,934 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 122 [2018-10-10 15:48:08,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:08,938 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-10-10 15:48:08,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:48:08,938 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-10-10 15:48:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-10 15:48:08,941 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:48:08,942 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] [2018-10-10 15:48:08,942 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:48:08,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:48:08,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1653011681, now seen corresponding path program 1 times [2018-10-10 15:48:08,944 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:48:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:48:09,180 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:48:09,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 15:48:09,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 15:48:09,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 15:48:09,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 15:48:09,184 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 5 states. [2018-10-10 15:48:09,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:09,341 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-10-10 15:48:09,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 15:48:09,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-10-10 15:48:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:09,345 INFO L225 Difference]: With dead ends: 131 [2018-10-10 15:48:09,345 INFO L226 Difference]: Without dead ends: 131 [2018-10-10 15:48:09,346 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 [2018-10-10 15:48:09,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-10-10 15:48:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2018-10-10 15:48:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-10-10 15:48:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2018-10-10 15:48:09,359 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 125 [2018-10-10 15:48:09,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:09,360 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2018-10-10 15:48:09,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 15:48:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2018-10-10 15:48:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-10 15:48:09,364 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:48:09,364 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] [2018-10-10 15:48:09,365 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:48:09,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:48:09,365 INFO L82 PathProgramCache]: Analyzing trace with hash -624310074, now seen corresponding path program 2 times [2018-10-10 15:48:09,366 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:48:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:48:09,575 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:48:09,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-10 15:48:09,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:48:09,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:48:09,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:48:09,577 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand 6 states. [2018-10-10 15:48:09,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:09,724 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-10-10 15:48:09,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:48:09,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-10-10 15:48:09,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:09,729 INFO L225 Difference]: With dead ends: 132 [2018-10-10 15:48:09,729 INFO L226 Difference]: Without dead ends: 132 [2018-10-10 15:48:09,730 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 [2018-10-10 15:48:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-10-10 15:48:09,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-10-10 15:48:09,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-10-10 15:48:09,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-10-10 15:48:09,742 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 128 [2018-10-10 15:48:09,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:09,743 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-10-10 15:48:09,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:48:09,743 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-10-10 15:48:09,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-10 15:48:09,745 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:48:09,746 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] [2018-10-10 15:48:09,746 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:48:09,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:48:09,747 INFO L82 PathProgramCache]: Analyzing trace with hash 833607103, now seen corresponding path program 3 times [2018-10-10 15:48:09,748 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:48:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:10,520 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-10 15:48:10,997 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-10-10 15:48:12,298 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 27 [2018-10-10 15:48:12,603 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 27 [2018-10-10 15:48:12,738 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2018-10-10 15:48:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:48:13,311 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:48:13,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-10 15:48:13,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-10 15:48:13,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-10 15:48:13,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:48:13,313 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 27 states. [2018-10-10 15:48:15,627 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2018-10-10 15:48:16,531 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-10-10 15:48:16,972 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2018-10-10 15:48:17,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:17,492 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-10-10 15:48:17,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-10 15:48:17,498 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 131 [2018-10-10 15:48:17,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:17,500 INFO L225 Difference]: With dead ends: 147 [2018-10-10 15:48:17,500 INFO L226 Difference]: Without dead ends: 135 [2018-10-10 15:48:17,504 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=445, Invalid=1811, Unknown=0, NotChecked=0, Total=2256 [2018-10-10 15:48:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-10-10 15:48:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-10-10 15:48:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-10-10 15:48:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2018-10-10 15:48:17,526 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 131 [2018-10-10 15:48:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:17,527 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2018-10-10 15:48:17,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-10 15:48:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2018-10-10 15:48:17,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-10 15:48:17,536 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:48:17,536 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] [2018-10-10 15:48:17,537 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:48:17,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:48:17,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1360037338, now seen corresponding path program 4 times [2018-10-10 15:48:17,538 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:48:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:48:17,807 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:48:17,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-10 15:48:17,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:48:17,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:48:17,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:48:17,809 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand 7 states. [2018-10-10 15:48:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:17,883 INFO L93 Difference]: Finished difference Result 109 states and 108 transitions. [2018-10-10 15:48:17,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 15:48:17,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2018-10-10 15:48:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:17,884 INFO L225 Difference]: With dead ends: 109 [2018-10-10 15:48:17,885 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:48:17,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:48:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:48:17,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:48:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:48:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:48:17,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2018-10-10 15:48:17,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:17,887 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:48:17,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:48:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:48:17,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:48:17,893 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 10.10 03:48:17 BoogieIcfgContainer [2018-10-10 15:48:17,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:48:17,894 INFO L168 Benchmark]: Toolchain (without parser) took 10913.98 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 34.6 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 326.9 MB). Peak memory consumption was 361.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:48:17,896 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. [2018-10-10 15:48:17,896 INFO L168 Benchmark]: Boogie Preprocessor took 68.17 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. [2018-10-10 15:48:17,897 INFO L168 Benchmark]: RCFGBuilder took 1109.14 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. [2018-10-10 15:48:17,898 INFO L168 Benchmark]: TraceAbstraction took 9732.62 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 34.6 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 295.2 MB). Peak memory consumption was 329.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:48:17,902 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 68.17 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 1109.14 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 9732.62 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 34.6 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 295.2 MB). Peak memory consumption was 329.8 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, 9.6s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 502 SDtfs, 851 SDslu, 1502 SDs, 0 SdLazy, 1487 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 13 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 5.5s 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, 0.2s SatisfiabilityAnalysisTime, 4.1s 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-0-2018-10-10_15-48-17-913.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-0-2018-10-10_15-48-17-913.csv Received shutdown request...