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_false-valid-free.i_17.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:47:44,931 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:47:44,933 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:47:44,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:47:44,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:47:44,949 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:47:44,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:47:44,954 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:47:44,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:47:44,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:47:44,965 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:47:44,988 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 15:47:45,007 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:47:45,008 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:47:45,012 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:47:45,012 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:47:45,012 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:47:45,012 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:47:45,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:47:45,013 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:47:45,014 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:47:45,014 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:47:45,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:47:45,014 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:47:45,014 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:47:45,016 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:47:45,016 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:47:45,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:47:45,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:47:45,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:47:45,104 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:47:45,105 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:47:45,106 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_17.bpl [2018-10-10 15:47:45,106 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_17.bpl' [2018-10-10 15:47:45,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:47:45,204 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:47:45,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:47:45,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:47:45,205 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:47:45,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/1) ... [2018-10-10 15:47:45,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/1) ... [2018-10-10 15:47:45,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/1) ... [2018-10-10 15:47:45,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/1) ... [2018-10-10 15:47:45,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/1) ... [2018-10-10 15:47:45,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/1) ... [2018-10-10 15:47:45,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/1) ... [2018-10-10 15:47:45,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:47:45,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:47:45,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:47:45,294 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:47:45,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (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 15:47:45,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:47:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:47:45,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:47:46,296 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:47:46,297 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:47:46 BoogieIcfgContainer [2018-10-10 15:47:46,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:47:46,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:47:46,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:47:46,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:47:46,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:45" (1/2) ... [2018-10-10 15:47:46,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d0b2e7 and model type test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:47:46, skipping insertion in model container [2018-10-10 15:47:46,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:47:46" (2/2) ... [2018-10-10 15:47:46,306 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_false-valid-free.i_17.bpl [2018-10-10 15:47:46,316 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:47:46,325 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:47:46,343 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:47:46,379 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:47:46,380 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:47:46,380 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:47:46,381 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:47:46,381 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:47:46,381 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:47:46,381 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:47:46,381 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:47:46,381 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:47:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-10-10 15:47:46,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-10 15:47:46,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:46,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:47:46,447 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:46,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:46,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1713381136, now seen corresponding path program 1 times [2018-10-10 15:47:46,503 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:46,896 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 15:47:46,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:47:46,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:47:46,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:47:46,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:47:46,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:47:46,926 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 4 states. [2018-10-10 15:47:47,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:47,071 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-10-10 15:47:47,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:47:47,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2018-10-10 15:47:47,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:47,088 INFO L225 Difference]: With dead ends: 148 [2018-10-10 15:47:47,088 INFO L226 Difference]: Without dead ends: 148 [2018-10-10 15:47:47,090 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 15:47:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-10-10 15:47:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2018-10-10 15:47:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-10-10 15:47:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-10-10 15:47:47,140 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 142 [2018-10-10 15:47:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:47,141 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-10-10 15:47:47,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:47:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-10-10 15:47:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-10 15:47:47,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:47,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:47:47,146 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:47,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:47,146 INFO L82 PathProgramCache]: Analyzing trace with hash 500572905, now seen corresponding path program 1 times [2018-10-10 15:47:47,148 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:47,393 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 15:47:47,393 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:47:47,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 15:47:47,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 15:47:47,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 15:47:47,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 15:47:47,397 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 5 states. [2018-10-10 15:47:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:47,599 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-10-10 15:47:47,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 15:47:47,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2018-10-10 15:47:47,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:47,603 INFO L225 Difference]: With dead ends: 151 [2018-10-10 15:47:47,603 INFO L226 Difference]: Without dead ends: 151 [2018-10-10 15:47:47,605 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 15:47:47,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-10-10 15:47:47,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2018-10-10 15:47:47,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-10-10 15:47:47,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2018-10-10 15:47:47,627 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 145 [2018-10-10 15:47:47,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:47,629 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2018-10-10 15:47:47,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 15:47:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2018-10-10 15:47:47,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-10 15:47:47,632 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:47,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:47:47,632 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:47,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:47,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1407356336, now seen corresponding path program 2 times [2018-10-10 15:47:47,634 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:47,884 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 15:47:47,884 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:47:47,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-10 15:47:47,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:47:47,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:47:47,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:47:47,886 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand 6 states. [2018-10-10 15:47:48,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:48,015 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2018-10-10 15:47:48,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:47:48,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-10-10 15:47:48,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:48,018 INFO L225 Difference]: With dead ends: 154 [2018-10-10 15:47:48,018 INFO L226 Difference]: Without dead ends: 154 [2018-10-10 15:47:48,019 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 15:47:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-10-10 15:47:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2018-10-10 15:47:48,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-10-10 15:47:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-10-10 15:47:48,031 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 148 [2018-10-10 15:47:48,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:48,032 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-10-10 15:47:48,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:47:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-10-10 15:47:48,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-10 15:47:48,035 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:48,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:47:48,036 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:48,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:48,036 INFO L82 PathProgramCache]: Analyzing trace with hash -930179703, now seen corresponding path program 3 times [2018-10-10 15:47:48,037 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:48,476 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 15:47:48,477 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:47:48,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-10 15:47:48,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:47:48,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:47:48,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:47:48,479 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 7 states. [2018-10-10 15:47:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:48,871 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-10-10 15:47:48,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 15:47:48,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2018-10-10 15:47:48,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:48,875 INFO L225 Difference]: With dead ends: 155 [2018-10-10 15:47:48,875 INFO L226 Difference]: Without dead ends: 155 [2018-10-10 15:47:48,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:47:48,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-10-10 15:47:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-10-10 15:47:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-10 15:47:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-10-10 15:47:48,885 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 151 [2018-10-10 15:47:48,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:48,886 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-10-10 15:47:48,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:47:48,886 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-10-10 15:47:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-10 15:47:48,889 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:48,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:47:48,889 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:48,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:48,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1702855760, now seen corresponding path program 4 times [2018-10-10 15:47:48,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:49,959 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2018-10-10 15:47:50,530 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 24 [2018-10-10 15:47:50,774 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2018-10-10 15:47:51,416 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:47:51,417 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:47:51,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-10-10 15:47:51,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-10 15:47:51,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-10 15:47:51,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2018-10-10 15:47:51,419 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 25 states. [2018-10-10 15:47:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:53,926 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-10-10 15:47:53,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-10 15:47:53,927 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 154 [2018-10-10 15:47:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:53,927 INFO L225 Difference]: With dead ends: 144 [2018-10-10 15:47:53,928 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:47:53,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 10 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=360, Invalid=1280, Unknown=0, NotChecked=0, Total=1640 [2018-10-10 15:47:53,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:47:53,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:47:53,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:47:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:47:53,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2018-10-10 15:47:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:53,930 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:47:53,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-10 15:47:53,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:47:53,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:47:53,936 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:47:53 BoogieIcfgContainer [2018-10-10 15:47:53,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:47:53,937 INFO L168 Benchmark]: Toolchain (without parser) took 8734.17 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 41.4 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 228.1 MB). Peak memory consumption was 269.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:47:53,939 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 15:47:53,939 INFO L168 Benchmark]: Boogie Preprocessor took 88.28 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 15:47:53,940 INFO L168 Benchmark]: RCFGBuilder took 1004.13 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:47:53,941 INFO L168 Benchmark]: TraceAbstraction took 7637.41 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 41.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 185.8 MB). Peak memory consumption was 227.2 MB. Max. memory is 7.1 GB. [2018-10-10 15:47:53,945 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 0.22 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 88.28 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 1004.13 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7637.41 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 41.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 185.8 MB). Peak memory consumption was 227.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 214]: 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, 147 locations, 1 error locations. SAFE Result, 7.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 614 SDtfs, 743 SDslu, 1816 SDs, 0 SdLazy, 1359 SolverSat, 102 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 11 SyntacticMatches, 10 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred 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, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 740 NumberOfCodeBlocks, 740 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 735 ConstructedInterpolants, 0 QuantifiedInterpolants, 373083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/40 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_false-valid-free.i_17.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-47-53-955.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_false-valid-free.i_17.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-47-53-955.csv Received shutdown request...