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_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:54:51,539 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:54:51,542 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:54:51,554 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:54:51,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:54:51,556 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:54:51,557 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:54:51,559 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:54:51,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:54:51,561 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:54:51,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:54:51,562 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:54:51,563 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:54:51,564 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:54:51,565 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:54:51,566 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:54:51,567 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:54:51,569 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:54:51,571 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:54:51,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:54:51,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:54:51,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:54:51,583 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:54:51,583 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:54:51,584 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:54:51,585 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:54:51,590 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:54:51,591 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:54:51,595 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:54:51,596 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:54:51,596 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:54:51,597 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:54:51,601 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:54:51,622 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:54:51,622 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:54:51,623 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:54:51,623 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:54:51,623 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:54:51,623 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:54:51,626 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:54:51,626 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:54:51,627 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:54:51,627 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:54:51,627 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:54:51,627 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:54:51,627 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:54:51,628 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:54:51,628 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:54:51,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:54:51,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:54:51,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:54:51,694 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:54:51,695 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:54:51,696 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_13.bpl [2018-10-14 16:54:51,696 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_13.bpl' [2018-10-14 16:54:51,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:54:51,773 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:54:51,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:54:51,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:54:51,774 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:54:51,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/1) ... [2018-10-14 16:54:51,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/1) ... [2018-10-14 16:54:51,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/1) ... [2018-10-14 16:54:51,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/1) ... [2018-10-14 16:54:51,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/1) ... [2018-10-14 16:54:51,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/1) ... [2018-10-14 16:54:51,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/1) ... [2018-10-14 16:54:51,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:54:51,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:54:51,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:54:51,870 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:54:51,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (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 [2018-10-14 16:54:51,948 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:54:51,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:54:51,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:54:52,865 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:54:52,866 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:54:52 BoogieIcfgContainer [2018-10-14 16:54:52,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:54:52,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:54:52,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:54:52,872 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:54:52,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:51" (1/2) ... [2018-10-14 16:54:52,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98cac68 and model type test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:54:52, skipping insertion in model container [2018-10-14 16:54:52,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:54:52" (2/2) ... [2018-10-14 16:54:52,875 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_false-valid-free.i_13.bpl [2018-10-14 16:54:52,885 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:54:52,894 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:54:52,911 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:54:52,938 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:54:52,939 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:54:52,939 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:54:52,939 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:54:52,939 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:54:52,939 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:54:52,940 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:54:52,940 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:54:52,940 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:54:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2018-10-14 16:54:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-14 16:54:52,976 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:52,977 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] [2018-10-14 16:54:52,979 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:52,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:52,984 INFO L82 PathProgramCache]: Analyzing trace with hash 387924863, now seen corresponding path program 1 times [2018-10-14 16:54:53,033 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:54:53,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:54:53,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 16:54:53,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 16:54:53,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 16:54:53,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:54:53,516 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 4 states. [2018-10-14 16:54:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:53,658 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-10-14 16:54:53,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 16:54:53,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2018-10-14 16:54:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:53,676 INFO L225 Difference]: With dead ends: 133 [2018-10-14 16:54:53,677 INFO L226 Difference]: Without dead ends: 133 [2018-10-14 16:54:53,679 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:54:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-10-14 16:54:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2018-10-14 16:54:53,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-14 16:54:53,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-10-14 16:54:53,730 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 127 [2018-10-14 16:54:53,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:53,731 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-10-14 16:54:53,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 16:54:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-10-14 16:54:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-14 16:54:53,737 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:53,737 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] [2018-10-14 16:54:53,738 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:53,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:53,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1841720998, now seen corresponding path program 1 times [2018-10-14 16:54:53,742 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:53,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:54:53,981 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:54:53,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-14 16:54:53,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-14 16:54:53,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-14 16:54:53,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:54:53,984 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 5 states. [2018-10-14 16:54:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:54,203 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2018-10-14 16:54:54,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-14 16:54:54,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-10-14 16:54:54,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:54,207 INFO L225 Difference]: With dead ends: 136 [2018-10-14 16:54:54,207 INFO L226 Difference]: Without dead ends: 136 [2018-10-14 16:54:54,208 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 [2018-10-14 16:54:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-10-14 16:54:54,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2018-10-14 16:54:54,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-10-14 16:54:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-10-14 16:54:54,232 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 130 [2018-10-14 16:54:54,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:54,233 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-10-14 16:54:54,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-14 16:54:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-10-14 16:54:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-14 16:54:54,238 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:54,239 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] [2018-10-14 16:54:54,239 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:54,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:54,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1432165919, now seen corresponding path program 2 times [2018-10-14 16:54:54,244 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:54:54,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:54:54,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-14 16:54:54,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 16:54:54,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 16:54:54,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:54:54,448 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 6 states. [2018-10-14 16:54:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:54,620 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-10-14 16:54:54,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-14 16:54:54,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-10-14 16:54:54,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:54,625 INFO L225 Difference]: With dead ends: 139 [2018-10-14 16:54:54,625 INFO L226 Difference]: Without dead ends: 139 [2018-10-14 16:54:54,626 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 [2018-10-14 16:54:54,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-10-14 16:54:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2018-10-14 16:54:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-10-14 16:54:54,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2018-10-14 16:54:54,636 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 133 [2018-10-14 16:54:54,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:54,637 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2018-10-14 16:54:54,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 16:54:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2018-10-14 16:54:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-14 16:54:54,640 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:54,640 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] [2018-10-14 16:54:54,640 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:54,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:54,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1916071930, now seen corresponding path program 3 times [2018-10-14 16:54:54,644 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:54:54,915 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:54:54,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-14 16:54:54,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-14 16:54:54,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-14 16:54:54,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:54:54,917 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand 7 states. [2018-10-14 16:54:55,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:55,371 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-10-14 16:54:55,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 16:54:55,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2018-10-14 16:54:55,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:55,376 INFO L225 Difference]: With dead ends: 140 [2018-10-14 16:54:55,376 INFO L226 Difference]: Without dead ends: 140 [2018-10-14 16:54:55,382 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:54:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-14 16:54:55,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-10-14 16:54:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-10-14 16:54:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2018-10-14 16:54:55,397 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 136 [2018-10-14 16:54:55,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:55,399 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2018-10-14 16:54:55,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-14 16:54:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2018-10-14 16:54:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-14 16:54:55,406 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:55,407 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] [2018-10-14 16:54:55,407 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:55,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:55,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1345618111, now seen corresponding path program 4 times [2018-10-14 16:54:55,411 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:55,825 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-14 16:54:55,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:54:55,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-14 16:54:55,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-14 16:54:55,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-14 16:54:55,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:54:55,829 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand 8 states. [2018-10-14 16:54:56,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:56,154 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-10-14 16:54:56,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-14 16:54:56,155 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2018-10-14 16:54:56,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:56,155 INFO L225 Difference]: With dead ends: 138 [2018-10-14 16:54:56,156 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:54:56,156 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:54:56,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:54:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:54:56,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:54:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:54:56,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2018-10-14 16:54:56,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:56,158 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:54:56,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-14 16:54:56,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:54:56,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:54:56,164 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:54:56 BoogieIcfgContainer [2018-10-14 16:54:56,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:54:56,166 INFO L168 Benchmark]: Toolchain (without parser) took 4393.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 296.0 MB). Peak memory consumption was 296.0 MB. Max. memory is 7.1 GB. [2018-10-14 16:54:56,168 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-10-14 16:54:56,168 INFO L168 Benchmark]: Boogie Preprocessor took 94.48 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. [2018-10-14 16:54:56,169 INFO L168 Benchmark]: RCFGBuilder took 997.78 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. [2018-10-14 16:54:56,170 INFO L168 Benchmark]: TraceAbstraction took 3296.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:54:56,174 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.48 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 997.78 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 3296.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 195]: 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, 132 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 593 SDtfs, 491 SDslu, 1417 SDs, 0 SdLazy, 211 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 197442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 22/40 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_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-54-56-185.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_false-valid-free.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-54-56-185.csv Received shutdown request...