java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:32:28,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:32:28,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:32:29,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 02:32:29,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:32:29,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:32:29,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:32:29,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:32:29,085 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:32:29,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:32:29,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:32:29,086 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:32:29,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:32:29,087 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:32:29,087 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:32:29,088 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:32:29,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:32:29,088 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:32:29,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:32:29,091 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:32:29,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:32:29,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:32:29,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:32:29,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:32:29,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:32:29,092 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:32:29,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:32:29,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:32:29,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:32:29,093 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:32:29,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:32:29,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:32:29,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:32:29,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:32:29,094 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:32:29,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:32:29,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:32:29,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:32:29,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:32:29,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:32:29,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:32:29,161 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:32:29,161 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:32:29,162 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2019-10-03 02:32:29,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdda0d767/0147c895c9404583a9e2b132872caa82/FLAG45134773d [2019-10-03 02:32:29,690 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:32:29,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2019-10-03 02:32:29,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdda0d767/0147c895c9404583a9e2b132872caa82/FLAG45134773d [2019-10-03 02:32:30,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdda0d767/0147c895c9404583a9e2b132872caa82 [2019-10-03 02:32:30,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:32:30,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:32:30,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:32:30,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:32:30,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:32:30,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a11b6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30, skipping insertion in model container [2019-10-03 02:32:30,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,108 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:32:30,131 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:32:30,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:32:30,309 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:32:30,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:32:30,336 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:32:30,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30 WrapperNode [2019-10-03 02:32:30,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:32:30,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:32:30,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:32:30,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:32:30,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (1/1) ... [2019-10-03 02:32:30,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:32:30,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:32:30,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:32:30,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:32:30,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:32:30,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:32:30,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:32:30,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 02:32:30,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:32:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:32:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 02:32:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 02:32:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:32:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:32:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:32:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:32:30,695 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:32:30,696 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 02:32:30,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:32:30 BoogieIcfgContainer [2019-10-03 02:32:30,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:32:30,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:32:30,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:32:30,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:32:30,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:32:30" (1/3) ... [2019-10-03 02:32:30,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196db60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:32:30, skipping insertion in model container [2019-10-03 02:32:30,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:32:30" (2/3) ... [2019-10-03 02:32:30,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196db60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:32:30, skipping insertion in model container [2019-10-03 02:32:30,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:32:30" (3/3) ... [2019-10-03 02:32:30,726 INFO L109 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2019-10-03 02:32:30,760 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:32:30,779 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:32:30,810 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:32:30,858 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:32:30,858 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:32:30,858 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:32:30,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:32:30,859 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:32:30,859 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:32:30,859 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:32:30,859 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:32:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-03 02:32:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-03 02:32:30,879 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:32:30,879 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:32:30,881 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:32:30,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:32:30,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1158151592, now seen corresponding path program 1 times [2019-10-03 02:32:30,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:32:30,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:30,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:32:30,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:30,935 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:32:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:32:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:32:31,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:32:31,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:32:31,076 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:32:31,079 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:32:31,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:32:31,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:32:31,094 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-10-03 02:32:31,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:32:31,193 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-10-03 02:32:31,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:32:31,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-03 02:32:31,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:32:31,208 INFO L225 Difference]: With dead ends: 29 [2019-10-03 02:32:31,209 INFO L226 Difference]: Without dead ends: 21 [2019-10-03 02:32:31,214 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:32:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-03 02:32:31,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-03 02:32:31,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-03 02:32:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-10-03 02:32:31,269 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2019-10-03 02:32:31,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:32:31,270 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-10-03 02:32:31,271 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:32:31,271 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-10-03 02:32:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-03 02:32:31,272 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:32:31,273 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:32:31,275 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:32:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:32:31,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1937413030, now seen corresponding path program 1 times [2019-10-03 02:32:31,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:32:31,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:31,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:32:31,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:31,281 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:32:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:32:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:32:31,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:32:31,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:32:31,416 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:32:31,419 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:32:31,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:32:31,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:32:31,420 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2019-10-03 02:32:31,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:32:31,518 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-10-03 02:32:31,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:32:31,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-03 02:32:31,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:32:31,520 INFO L225 Difference]: With dead ends: 29 [2019-10-03 02:32:31,520 INFO L226 Difference]: Without dead ends: 29 [2019-10-03 02:32:31,521 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:32:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-03 02:32:31,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-10-03 02:32:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-03 02:32:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-10-03 02:32:31,533 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 17 [2019-10-03 02:32:31,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:32:31,533 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-10-03 02:32:31,533 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:32:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-10-03 02:32:31,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-03 02:32:31,536 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:32:31,536 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:32:31,536 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:32:31,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:32:31,537 INFO L82 PathProgramCache]: Analyzing trace with hash 441803270, now seen corresponding path program 1 times [2019-10-03 02:32:31,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:32:31,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:31,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:32:31,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:31,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:32:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:32:31,645 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-03 02:32:31,646 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:32:31,646 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:32:31,647 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2019-10-03 02:32:31,648 INFO L207 CegarAbsIntRunner]: [0], [4], [7], [11], [19], [23], [29], [32], [34], [37], [39], [40], [41], [42], [44], [45], [46], [47] [2019-10-03 02:32:31,696 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:32:31,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:32:31,901 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 02:32:31,904 INFO L272 AbstractInterpreter]: Visited 18 different actions 103 times. Merged at 4 different actions 20 times. Widened at 1 different actions 1 times. Performed 120 root evaluator evaluations with a maximum evaluation depth of 7. Performed 120 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2019-10-03 02:32:31,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:32:31,909 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-03 02:32:31,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:32:31,910 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:32:31,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:32:31,945 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-10-03 02:32:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:32:31,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-03 02:32:31,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:32:32,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:32:32,162 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:32:32,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:32:32,310 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-03 02:32:32,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9] total 15 [2019-10-03 02:32:32,311 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-10-03 02:32:32,311 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-03 02:32:32,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-03 02:32:32,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-10-03 02:32:32,313 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 13 states. [2019-10-03 02:32:32,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:32:32,488 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-10-03 02:32:32,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:32:32,489 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2019-10-03 02:32:32,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:32:32,491 INFO L225 Difference]: With dead ends: 41 [2019-10-03 02:32:32,491 INFO L226 Difference]: Without dead ends: 41 [2019-10-03 02:32:32,491 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2019-10-03 02:32:32,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-03 02:32:32,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-10-03 02:32:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-03 02:32:32,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2019-10-03 02:32:32,499 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 29 [2019-10-03 02:32:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:32:32,499 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2019-10-03 02:32:32,499 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-03 02:32:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-10-03 02:32:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-03 02:32:32,501 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:32:32,501 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:32:32,502 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:32:32,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:32:32,502 INFO L82 PathProgramCache]: Analyzing trace with hash 713924710, now seen corresponding path program 2 times [2019-10-03 02:32:32,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:32:32,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:32,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:32:32,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:32:32,504 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:32:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:32:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-03 02:32:32,599 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:32:32,599 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:32:32,600 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-10-03 02:32:32,600 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:32:32,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:32:32,600 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:32:32,631 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-03 02:32:32,631 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-10-03 02:32:32,646 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-03 02:32:32,647 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-03 02:32:32,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-03 02:32:32,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:32:32,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:32:32,705 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:32:32,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-03 02:32:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:32:32,835 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-03 02:32:32,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 13 [2019-10-03 02:32:32,835 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-10-03 02:32:32,836 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:32:32,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:32:32,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:32:32,837 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2019-10-03 02:32:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:32:32,943 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2019-10-03 02:32:32,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:32:32,944 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2019-10-03 02:32:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:32:32,944 INFO L225 Difference]: With dead ends: 38 [2019-10-03 02:32:32,945 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:32:32,945 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-03 02:32:32,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:32:32,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:32:32,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:32:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:32:32,946 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-10-03 02:32:32,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:32:32,946 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:32:32,946 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:32:32,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:32:32,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:32:32,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:32:32 BoogieIcfgContainer [2019-10-03 02:32:32,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:32:32,956 INFO L168 Benchmark]: Toolchain (without parser) took 2871.85 ms. Allocated memory was 130.5 MB in the beginning and 217.6 MB in the end (delta: 87.0 MB). Free memory was 86.0 MB in the beginning and 102.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:32:32,957 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:32:32,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.75 ms. Allocated memory is still 130.5 MB. Free memory was 85.8 MB in the beginning and 76.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:32:32,959 INFO L168 Benchmark]: Boogie Preprocessor took 117.18 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.4 MB in the beginning and 174.4 MB in the end (delta: -98.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:32:32,960 INFO L168 Benchmark]: RCFGBuilder took 243.13 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 162.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:32:32,960 INFO L168 Benchmark]: TraceAbstraction took 2247.41 ms. Allocated memory was 198.2 MB in the beginning and 217.6 MB in the end (delta: 19.4 MB). Free memory was 161.9 MB in the beginning and 102.9 MB in the end (delta: 59.0 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:32:32,964 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.75 ms. Allocated memory is still 130.5 MB. Free memory was 85.8 MB in the beginning and 76.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.18 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.4 MB in the beginning and 174.4 MB in the end (delta: -98.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 243.13 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 162.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2247.41 ms. Allocated memory was 198.2 MB in the beginning and 217.6 MB in the end (delta: 19.4 MB). Free memory was 161.9 MB in the beginning and 102.9 MB in the end (delta: 59.0 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 4 OverallIterations, 6 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 41 SDslu, 228 SDs, 0 SdLazy, 200 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 169 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 18563 SizeOfPredicates, 14 NumberOfNonLiveVariables, 123 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 208/245 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...