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_true-valid-memsafety_true-termination.i_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:55:56,390 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:55:56,392 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:55:56,412 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:55:56,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:55:56,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:55:56,415 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:55:56,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:55:56,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:55:56,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:55:56,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:55:56,421 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:55:56,421 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:55:56,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:55:56,429 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:55:56,429 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:55:56,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:55:56,438 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:55:56,440 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:55:56,441 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:55:56,442 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:55:56,443 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:55:56,446 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-14 16:55:56,453 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 16:55:56,468 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:55:56,468 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:55:56,472 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:55:56,472 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:55:56,473 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:55:56,473 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:55:56,474 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:55:56,477 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:55:56,477 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:55:56,477 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:55:56,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:55:56,478 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:55:56,478 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:55:56,480 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:55:56,480 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:55:56,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:55:56,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:55:56,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:55:56,565 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:55:56,565 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:55:56,566 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl [2018-10-14 16:55:56,567 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl' [2018-10-14 16:55:56,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:55:56,637 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:55:56,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:55:56,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:55:56,638 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:55:56,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/1) ... [2018-10-14 16:55:56,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/1) ... [2018-10-14 16:55:56,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/1) ... [2018-10-14 16:55:56,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/1) ... [2018-10-14 16:55:56,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/1) ... [2018-10-14 16:55:56,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/1) ... [2018-10-14 16:55:56,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/1) ... [2018-10-14 16:55:56,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:55:56,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:55:56,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:55:56,711 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:55:56,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (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 16:55:56,774 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:55:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:55:56,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:55:57,629 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:55:57,630 INFO L202 PluginConnector]: Adding new model test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:55:57 BoogieIcfgContainer [2018-10-14 16:55:57,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:55:57,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:55:57,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:55:57,635 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:55:57,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:55:56" (1/2) ... [2018-10-14 16:55:57,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c5ca8a and model type test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:55:57, skipping insertion in model container [2018-10-14 16:55:57,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:55:57" (2/2) ... [2018-10-14 16:55:57,639 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl [2018-10-14 16:55:57,649 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:55:57,658 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:55:57,676 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:55:57,705 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:55:57,706 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:55:57,706 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:55:57,707 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:55:57,707 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:55:57,707 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:55:57,707 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:55:57,707 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:55:57,707 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:55:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2018-10-14 16:55:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-14 16:55:57,744 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:55:57,745 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] [2018-10-14 16:55:57,747 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:55:57,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:55:57,754 INFO L82 PathProgramCache]: Analyzing trace with hash -926031366, now seen corresponding path program 1 times [2018-10-14 16:55:57,821 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:55:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:55:58,220 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 16:55:58,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:55:58,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 16:55:58,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 16:55:58,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 16:55:58,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:55:58,249 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 4 states. [2018-10-14 16:55:58,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:55:58,363 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-10-14 16:55:58,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 16:55:58,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-10-14 16:55:58,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:55:58,381 INFO L225 Difference]: With dead ends: 123 [2018-10-14 16:55:58,381 INFO L226 Difference]: Without dead ends: 123 [2018-10-14 16:55:58,383 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 16:55:58,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-10-14 16:55:58,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2018-10-14 16:55:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-10-14 16:55:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2018-10-14 16:55:58,432 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 117 [2018-10-14 16:55:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:55:58,434 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2018-10-14 16:55:58,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 16:55:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2018-10-14 16:55:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-14 16:55:58,441 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:55:58,441 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] [2018-10-14 16:55:58,442 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:55:58,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:55:58,442 INFO L82 PathProgramCache]: Analyzing trace with hash 420361889, now seen corresponding path program 1 times [2018-10-14 16:55:58,443 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:55:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:55:58,673 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 16:55:58,674 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:55:58,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-14 16:55:58,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-14 16:55:58,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-14 16:55:58,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:55:58,678 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand 5 states. [2018-10-14 16:55:58,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:55:58,930 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2018-10-14 16:55:58,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-14 16:55:58,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2018-10-14 16:55:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:55:58,938 INFO L225 Difference]: With dead ends: 126 [2018-10-14 16:55:58,938 INFO L226 Difference]: Without dead ends: 126 [2018-10-14 16:55:58,940 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:55:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-10-14 16:55:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2018-10-14 16:55:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-10-14 16:55:58,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-10-14 16:55:58,958 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 120 [2018-10-14 16:55:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:55:58,961 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-10-14 16:55:58,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-14 16:55:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-10-14 16:55:58,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-14 16:55:58,966 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:55:58,967 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] [2018-10-14 16:55:58,967 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:55:58,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:55:58,968 INFO L82 PathProgramCache]: Analyzing trace with hash 122244250, now seen corresponding path program 2 times [2018-10-14 16:55:58,970 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:55:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:55:59,172 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 16:55:59,173 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:55:59,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-14 16:55:59,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 16:55:59,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 16:55:59,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:55:59,175 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 6 states. [2018-10-14 16:55:59,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:55:59,312 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-10-14 16:55:59,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-14 16:55:59,313 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-10-14 16:55:59,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:55:59,315 INFO L225 Difference]: With dead ends: 129 [2018-10-14 16:55:59,315 INFO L226 Difference]: Without dead ends: 129 [2018-10-14 16:55:59,316 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:55:59,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-10-14 16:55:59,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2018-10-14 16:55:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-10-14 16:55:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-10-14 16:55:59,330 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 123 [2018-10-14 16:55:59,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:55:59,331 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-10-14 16:55:59,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 16:55:59,332 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-10-14 16:55:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-14 16:55:59,335 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:55:59,335 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] [2018-10-14 16:55:59,336 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:55:59,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:55:59,336 INFO L82 PathProgramCache]: Analyzing trace with hash 892028929, now seen corresponding path program 3 times [2018-10-14 16:55:59,337 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:55:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:55:59,594 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 16:55:59,595 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:55:59,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-14 16:55:59,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-14 16:55:59,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-14 16:55:59,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:55:59,596 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 7 states. [2018-10-14 16:56:00,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:00,034 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-10-14 16:56:00,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 16:56:00,040 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2018-10-14 16:56:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:00,042 INFO L225 Difference]: With dead ends: 130 [2018-10-14 16:56:00,042 INFO L226 Difference]: Without dead ends: 130 [2018-10-14 16:56:00,043 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 [2018-10-14 16:56:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-10-14 16:56:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-10-14 16:56:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-10-14 16:56:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2018-10-14 16:56:00,051 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 126 [2018-10-14 16:56:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:00,052 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2018-10-14 16:56:00,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-14 16:56:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2018-10-14 16:56:00,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-14 16:56:00,054 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:00,054 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] [2018-10-14 16:56:00,055 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:00,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:00,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1577959622, now seen corresponding path program 4 times [2018-10-14 16:56:00,056 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:00,370 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 16:56:00,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:56:00,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-14 16:56:00,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-14 16:56:00,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-14 16:56:00,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:56:00,373 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand 8 states. [2018-10-14 16:56:01,107 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-14 16:56:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:01,393 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-10-14 16:56:01,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-14 16:56:01,394 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2018-10-14 16:56:01,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:01,395 INFO L225 Difference]: With dead ends: 128 [2018-10-14 16:56:01,396 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:56:01,396 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:56:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:56:01,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:56:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:56:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:56:01,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 129 [2018-10-14 16:56:01,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:01,398 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:56:01,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-14 16:56:01,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:56:01,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:56:01,404 INFO L202 PluginConnector]: Adding new model test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:56:01 BoogieIcfgContainer [2018-10-14 16:56:01,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:56:01,405 INFO L168 Benchmark]: Toolchain (without parser) took 4769.00 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: 285.4 MB). Peak memory consumption was 285.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:56:01,406 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 16:56:01,407 INFO L168 Benchmark]: Boogie Preprocessor took 71.44 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 16:56:01,408 INFO L168 Benchmark]: RCFGBuilder took 920.15 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. [2018-10-14 16:56:01,409 INFO L168 Benchmark]: TraceAbstraction took 3772.65 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 16:56:01,413 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 0.19 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 71.44 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 920.15 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 3772.65 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: 187]: 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, 122 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 540 SDtfs, 509 SDslu, 1348 SDs, 0 SdLazy, 220 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred 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, 0.9s InterpolantComputationTime, 615 NumberOfCodeBlocks, 615 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 187414 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_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-56-01-424.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-56-01-424.csv Received shutdown request...