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-3_false-valid-deref.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:56:24,082 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:56:24,084 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:56:24,100 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:56:24,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:56:24,102 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:56:24,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:56:24,106 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:56:24,107 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:56:24,108 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:56:24,109 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:56:24,110 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:56:24,111 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:56:24,112 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:56:24,113 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:56:24,114 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:56:24,115 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:56:24,117 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:56:24,119 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:56:24,120 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:56:24,122 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:56:24,123 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:56:24,125 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:56:24,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:56:24,126 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:56:24,127 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:56:24,128 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:56:24,128 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:56:24,129 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:56:24,130 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:56:24,130 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:56:24,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:56:24,134 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 16:56:24,149 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:56:24,150 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:56:24,152 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:56:24,152 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:56:24,152 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:56:24,152 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:56:24,153 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:56:24,154 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:56:24,154 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:56:24,154 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:56:24,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:56:24,154 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:56:24,155 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:56:24,156 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:56:24,156 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:56:24,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:56:24,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:56:24,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:56:24,236 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:56:24,237 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:56:24,237 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-3_false-valid-deref.i_9.bpl [2018-10-14 16:56:24,238 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-3_false-valid-deref.i_9.bpl' [2018-10-14 16:56:24,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:56:24,339 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:56:24,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:56:24,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:56:24,340 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:56:24,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/1) ... [2018-10-14 16:56:24,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/1) ... [2018-10-14 16:56:24,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/1) ... [2018-10-14 16:56:24,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/1) ... [2018-10-14 16:56:24,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/1) ... [2018-10-14 16:56:24,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/1) ... [2018-10-14 16:56:24,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/1) ... [2018-10-14 16:56:24,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:56:24,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:56:24,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:56:24,409 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:56:24,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (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 16:56:24,477 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:56:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:56:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:56:25,117 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:56:25,118 INFO L202 PluginConnector]: Adding new model test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:56:25 BoogieIcfgContainer [2018-10-14 16:56:25,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:56:25,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:56:25,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:56:25,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:56:25,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:56:24" (1/2) ... [2018-10-14 16:56:25,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a63979d and model type test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:56:25, skipping insertion in model container [2018-10-14 16:56:25,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:56:25" (2/2) ... [2018-10-14 16:56:25,126 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-3_false-valid-deref.i_9.bpl [2018-10-14 16:56:25,135 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:56:25,144 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:56:25,162 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:56:25,191 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:56:25,192 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:56:25,192 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:56:25,192 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:56:25,192 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:56:25,192 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:56:25,193 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:56:25,193 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:56:25,193 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:56:25,213 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-10-14 16:56:25,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-14 16:56:25,226 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:25,227 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] [2018-10-14 16:56:25,229 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:25,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:25,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1909949462, now seen corresponding path program 1 times [2018-10-14 16:56:25,292 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:25,655 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 16:56:25,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:56:25,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 16:56:25,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 16:56:25,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 16:56:25,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:56:25,684 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 4 states. [2018-10-14 16:56:25,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:25,818 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-10-14 16:56:25,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 16:56:25,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2018-10-14 16:56:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:25,835 INFO L225 Difference]: With dead ends: 91 [2018-10-14 16:56:25,835 INFO L226 Difference]: Without dead ends: 91 [2018-10-14 16:56:25,837 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 16:56:25,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-10-14 16:56:25,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2018-10-14 16:56:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-10-14 16:56:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-10-14 16:56:25,884 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 85 [2018-10-14 16:56:25,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:25,885 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-10-14 16:56:25,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 16:56:25,885 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-10-14 16:56:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-14 16:56:25,889 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:25,889 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] [2018-10-14 16:56:25,890 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:25,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:25,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1668127377, now seen corresponding path program 1 times [2018-10-14 16:56:25,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:26,103 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 16:56:26,103 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:26,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-14 16:56:26,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-14 16:56:26,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-14 16:56:26,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:56:26,107 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 5 states. [2018-10-14 16:56:26,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:26,292 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-10-14 16:56:26,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-14 16:56:26,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-10-14 16:56:26,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:26,296 INFO L225 Difference]: With dead ends: 94 [2018-10-14 16:56:26,296 INFO L226 Difference]: Without dead ends: 94 [2018-10-14 16:56:26,297 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 16:56:26,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-10-14 16:56:26,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2018-10-14 16:56:26,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-10-14 16:56:26,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-10-14 16:56:26,307 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 88 [2018-10-14 16:56:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:26,313 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-10-14 16:56:26,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-14 16:56:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-10-14 16:56:26,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-14 16:56:26,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:26,315 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] [2018-10-14 16:56:26,315 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:26,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:26,316 INFO L82 PathProgramCache]: Analyzing trace with hash -638081398, now seen corresponding path program 2 times [2018-10-14 16:56:26,317 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:26,549 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 16:56:26,549 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:26,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-14 16:56:26,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 16:56:26,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 16:56:26,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:56:26,553 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 6 states. [2018-10-14 16:56:26,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:26,686 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-10-14 16:56:26,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-14 16:56:26,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-10-14 16:56:26,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:26,691 INFO L225 Difference]: With dead ends: 97 [2018-10-14 16:56:26,691 INFO L226 Difference]: Without dead ends: 97 [2018-10-14 16:56:26,692 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 16:56:26,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-10-14 16:56:26,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2018-10-14 16:56:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-10-14 16:56:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-10-14 16:56:26,701 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 91 [2018-10-14 16:56:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:26,702 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-10-14 16:56:26,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 16:56:26,702 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-10-14 16:56:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-14 16:56:26,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:26,704 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] [2018-10-14 16:56:26,705 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:26,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:26,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1688136689, now seen corresponding path program 3 times [2018-10-14 16:56:26,706 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:26,928 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 16:56:26,929 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:26,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-14 16:56:26,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-14 16:56:26,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-14 16:56:26,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-14 16:56:26,931 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 7 states. [2018-10-14 16:56:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:27,375 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-10-14 16:56:27,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 16:56:27,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2018-10-14 16:56:27,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:27,383 INFO L225 Difference]: With dead ends: 100 [2018-10-14 16:56:27,383 INFO L226 Difference]: Without dead ends: 100 [2018-10-14 16:56:27,385 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 16:56:27,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-10-14 16:56:27,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2018-10-14 16:56:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-10-14 16:56:27,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-10-14 16:56:27,402 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 94 [2018-10-14 16:56:27,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:27,403 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-10-14 16:56:27,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-14 16:56:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-10-14 16:56:27,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-14 16:56:27,406 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:27,408 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] [2018-10-14 16:56:27,408 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:27,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:27,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1541121750, now seen corresponding path program 4 times [2018-10-14 16:56:27,411 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:27,677 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:27,677 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:27,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-14 16:56:27,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-14 16:56:27,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-14 16:56:27,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:56:27,679 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 8 states. [2018-10-14 16:56:28,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:28,065 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-10-14 16:56:28,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-14 16:56:28,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2018-10-14 16:56:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:28,068 INFO L225 Difference]: With dead ends: 103 [2018-10-14 16:56:28,068 INFO L226 Difference]: Without dead ends: 103 [2018-10-14 16:56:28,068 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:56:28,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-10-14 16:56:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2018-10-14 16:56:28,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-10-14 16:56:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-10-14 16:56:28,075 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 97 [2018-10-14 16:56:28,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:28,076 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-10-14 16:56:28,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-14 16:56:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-10-14 16:56:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-14 16:56:28,078 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:28,079 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:28,079 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:28,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:28,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1406814895, now seen corresponding path program 5 times [2018-10-14 16:56:28,080 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:28,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:28,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-14 16:56:28,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:56:28,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:56:28,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:56:28,379 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 9 states. [2018-10-14 16:56:28,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:28,594 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2018-10-14 16:56:28,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-14 16:56:28,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2018-10-14 16:56:28,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:28,596 INFO L225 Difference]: With dead ends: 106 [2018-10-14 16:56:28,596 INFO L226 Difference]: Without dead ends: 106 [2018-10-14 16:56:28,597 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:56:28,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-10-14 16:56:28,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2018-10-14 16:56:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-10-14 16:56:28,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-10-14 16:56:28,607 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 100 [2018-10-14 16:56:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:28,608 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-10-14 16:56:28,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:56:28,608 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-10-14 16:56:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-10-14 16:56:28,610 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:28,610 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:28,610 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:28,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:28,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1114149834, now seen corresponding path program 6 times [2018-10-14 16:56:28,612 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:29,031 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:29,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-14 16:56:29,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 16:56:29,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 16:56:29,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:56:29,032 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 10 states. [2018-10-14 16:56:29,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:29,281 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-14 16:56:29,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-14 16:56:29,282 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2018-10-14 16:56:29,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:29,283 INFO L225 Difference]: With dead ends: 109 [2018-10-14 16:56:29,283 INFO L226 Difference]: Without dead ends: 109 [2018-10-14 16:56:29,284 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:56:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-14 16:56:29,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2018-10-14 16:56:29,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-10-14 16:56:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-10-14 16:56:29,291 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 103 [2018-10-14 16:56:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:29,291 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-10-14 16:56:29,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 16:56:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-10-14 16:56:29,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-14 16:56:29,293 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:29,293 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:29,294 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:29,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:29,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1376253617, now seen corresponding path program 7 times [2018-10-14 16:56:29,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:29,586 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:29,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-14 16:56:29,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-14 16:56:29,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-14 16:56:29,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2018-10-14 16:56:29,588 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 11 states. [2018-10-14 16:56:29,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:29,816 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-10-14 16:56:29,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 16:56:29,818 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 106 [2018-10-14 16:56:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:29,819 INFO L225 Difference]: With dead ends: 112 [2018-10-14 16:56:29,819 INFO L226 Difference]: Without dead ends: 112 [2018-10-14 16:56:29,820 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2018-10-14 16:56:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-14 16:56:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2018-10-14 16:56:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-10-14 16:56:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-10-14 16:56:29,833 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 106 [2018-10-14 16:56:29,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:29,834 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-10-14 16:56:29,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-14 16:56:29,834 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-10-14 16:56:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-14 16:56:29,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:29,836 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:29,836 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:29,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:29,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1459508842, now seen corresponding path program 8 times [2018-10-14 16:56:29,840 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:30,887 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:30,887 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:30,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-14 16:56:30,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:56:30,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:56:30,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:56:30,889 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 12 states. [2018-10-14 16:56:31,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:31,352 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-10-14 16:56:31,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-14 16:56:31,356 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2018-10-14 16:56:31,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:31,357 INFO L225 Difference]: With dead ends: 115 [2018-10-14 16:56:31,358 INFO L226 Difference]: Without dead ends: 115 [2018-10-14 16:56:31,358 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:56:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-10-14 16:56:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2018-10-14 16:56:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-14 16:56:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-14 16:56:31,367 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 109 [2018-10-14 16:56:31,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:31,368 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-14 16:56:31,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:56:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-14 16:56:31,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-14 16:56:31,378 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:31,378 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:31,379 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:31,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:31,379 INFO L82 PathProgramCache]: Analyzing trace with hash -775180271, now seen corresponding path program 9 times [2018-10-14 16:56:31,383 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:32,162 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:32,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-14 16:56:32,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-14 16:56:32,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-14 16:56:32,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2018-10-14 16:56:32,163 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 13 states. [2018-10-14 16:56:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:32,558 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-10-14 16:56:32,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-14 16:56:32,558 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2018-10-14 16:56:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:32,559 INFO L225 Difference]: With dead ends: 116 [2018-10-14 16:56:32,559 INFO L226 Difference]: Without dead ends: 116 [2018-10-14 16:56:32,561 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:56:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-10-14 16:56:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-10-14 16:56:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-10-14 16:56:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-10-14 16:56:32,565 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 112 [2018-10-14 16:56:32,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:32,565 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-10-14 16:56:32,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-14 16:56:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-10-14 16:56:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-14 16:56:32,567 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:32,567 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:32,567 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:32,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:32,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1889509642, now seen corresponding path program 10 times [2018-10-14 16:56:32,569 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-10-14 16:56:32,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:56:32,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-14 16:56:32,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-14 16:56:32,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-14 16:56:32,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:56:32,833 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 8 states. [2018-10-14 16:56:33,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:33,190 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-10-14 16:56:33,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-14 16:56:33,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2018-10-14 16:56:33,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:33,191 INFO L225 Difference]: With dead ends: 114 [2018-10-14 16:56:33,191 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:56:33,191 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:56:33,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:56:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:56:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:56:33,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:56:33,192 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2018-10-14 16:56:33,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:33,193 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:56:33,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-14 16:56:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:56:33,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:56:33,198 INFO L202 PluginConnector]: Adding new model test-bitfields-3_false-valid-deref.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:56:33 BoogieIcfgContainer [2018-10-14 16:56:33,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:56:33,199 INFO L168 Benchmark]: Toolchain (without parser) took 8861.23 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 29.4 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 29.4 MB). Peak memory consumption was 58.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:56:33,202 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 16:56:33,202 INFO L168 Benchmark]: Boogie Preprocessor took 68.18 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 16:56:33,203 INFO L168 Benchmark]: RCFGBuilder took 709.44 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 16:56:33,204 INFO L168 Benchmark]: TraceAbstraction took 8079.65 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 29.4 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -2.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-10-14 16:56:33,207 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 68.18 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 709.44 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 8079.65 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 29.4 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -2.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 155]: 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, 90 locations, 1 error locations. SAFE Result, 8.0s OverallTime, 11 OverallIterations, 10 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 870 SDtfs, 685 SDslu, 3949 SDs, 0 SdLazy, 642 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=10, 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 18 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1100 NumberOfCodeBlocks, 1100 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1089 ConstructedInterpolants, 0 QuantifiedInterpolants, 254565 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 145/550 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-3_false-valid-deref.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-56-33-218.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-bitfields-3_false-valid-deref.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-56-33-218.csv Received shutdown request...