/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 03:56:31,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 03:56:31,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 03:56:31,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 03:56:31,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 03:56:31,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 03:56:31,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 03:56:31,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 03:56:31,537 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 03:56:31,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 03:56:31,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 03:56:31,539 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 03:56:31,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 03:56:31,539 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 03:56:31,539 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 03:56:31,539 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 03:56:31,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 03:56:31,540 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 03:56:31,541 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 03:56:31,541 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 03:56:31,541 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 03:56:31,542 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 03:56:31,542 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 03:56:31,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 03:56:31,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 03:56:31,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 03:56:31,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 03:56:31,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 03:56:31,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 03:56:31,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 03:56:31,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 03:56:31,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 03:56:31,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 03:56:31,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 03:56:31,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 03:56:31,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 03:56:31,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 03:56:31,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 03:56:31,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 03:56:31,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 03:56:31,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 03:56:31,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 03:56:31,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 03:56:31,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 03:56:31,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 03:56:31,549 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 03:56:31,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 03:56:31,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 03:56:31,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 03:56:31,835 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 03:56:31,835 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 03:56:31,836 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2019-11-24 03:56:31,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7360a96/236634d3de274dcc9d310b6d19c538d0/FLAG953088d11 [2019-11-24 03:56:32,396 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 03:56:32,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2019-11-24 03:56:32,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7360a96/236634d3de274dcc9d310b6d19c538d0/FLAG953088d11 [2019-11-24 03:56:32,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7360a96/236634d3de274dcc9d310b6d19c538d0 [2019-11-24 03:56:32,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 03:56:32,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 03:56:32,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 03:56:32,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 03:56:32,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 03:56:32,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:56:32" (1/1) ... [2019-11-24 03:56:32,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bfee95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:32, skipping insertion in model container [2019-11-24 03:56:32,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:56:32" (1/1) ... [2019-11-24 03:56:32,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 03:56:32,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 03:56:32,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:56:33,009 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 03:56:33,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:56:33,041 INFO L208 MainTranslator]: Completed translation [2019-11-24 03:56:33,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33 WrapperNode [2019-11-24 03:56:33,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 03:56:33,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 03:56:33,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 03:56:33,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 03:56:33,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 03:56:33,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 03:56:33,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 03:56:33,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 03:56:33,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (1/1) ... [2019-11-24 03:56:33,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 03:56:33,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 03:56:33,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 03:56:33,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 03:56:33,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (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 [2019-11-24 03:56:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 03:56:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 03:56:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 03:56:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 03:56:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 03:56:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 03:56:33,784 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 03:56:33,784 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-24 03:56:33,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:56:33 BoogieIcfgContainer [2019-11-24 03:56:33,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 03:56:33,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 03:56:33,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 03:56:33,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 03:56:33,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 03:56:32" (1/3) ... [2019-11-24 03:56:33,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b45189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:56:33, skipping insertion in model container [2019-11-24 03:56:33,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:33" (2/3) ... [2019-11-24 03:56:33,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b45189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:56:33, skipping insertion in model container [2019-11-24 03:56:33,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:56:33" (3/3) ... [2019-11-24 03:56:33,799 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2019-11-24 03:56:33,812 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 03:56:33,820 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 03:56:33,832 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 03:56:33,858 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 03:56:33,859 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 03:56:33,859 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 03:56:33,859 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 03:56:33,859 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 03:56:33,859 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 03:56:33,860 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 03:56:33,860 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 03:56:33,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-24 03:56:33,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 03:56:33,882 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:56:33,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 03:56:33,883 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:56:33,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:56:33,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2576448, now seen corresponding path program 1 times [2019-11-24 03:56:33,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:56:33,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190166857] [2019-11-24 03:56:33,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:56:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:56:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 03:56:34,123 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190166857] [2019-11-24 03:56:34,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:56:34,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 03:56:34,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857736750] [2019-11-24 03:56:34,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 03:56:34,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:56:34,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 03:56:34,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:56:34,157 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-11-24 03:56:34,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:56:34,199 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-11-24 03:56:34,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 03:56:34,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-24 03:56:34,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:56:34,214 INFO L225 Difference]: With dead ends: 10 [2019-11-24 03:56:34,214 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 03:56:34,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:56:34,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 03:56:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 03:56:34,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 03:56:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 03:56:34,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-24 03:56:34,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:56:34,253 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 03:56:34,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 03:56:34,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 03:56:34,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 03:56:34,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 03:56:34,281 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 03:56:34,281 INFO L440 ceAbstractionStarter]: At program point L36(lines 31 44) the Hoare annotation is: false [2019-11-24 03:56:34,282 INFO L447 ceAbstractionStarter]: At program point L34(lines 34 38) the Hoare annotation is: true [2019-11-24 03:56:34,282 INFO L444 ceAbstractionStarter]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2019-11-24 03:56:34,282 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-24 03:56:34,282 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2019-11-24 03:56:34,283 INFO L447 ceAbstractionStarter]: At program point L43(lines 30 44) the Hoare annotation is: true [2019-11-24 03:56:34,283 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 37) no Hoare annotation was computed. [2019-11-24 03:56:34,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 03:56:34 BoogieIcfgContainer [2019-11-24 03:56:34,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 03:56:34,300 INFO L168 Benchmark]: Toolchain (without parser) took 1513.29 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.7 MB in the beginning and 126.7 MB in the end (delta: -25.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:34,302 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-11-24 03:56:34,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.34 ms. Allocated memory is still 138.4 MB. Free memory was 101.4 MB in the beginning and 91.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:34,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.50 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.1 MB in the beginning and 180.3 MB in the end (delta: -89.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:34,308 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 178.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:34,310 INFO L168 Benchmark]: RCFGBuilder took 601.71 ms. Allocated memory is still 202.4 MB. Free memory was 178.5 MB in the beginning and 149.5 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:34,310 INFO L168 Benchmark]: TraceAbstraction took 509.46 ms. Allocated memory is still 202.4 MB. Free memory was 148.9 MB in the beginning and 126.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:34,326 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 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.34 ms. Allocated memory is still 138.4 MB. Free memory was 101.4 MB in the beginning and 91.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.50 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.1 MB in the beginning and 180.3 MB in the end (delta: -89.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 178.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 601.71 ms. Allocated memory is still 202.4 MB. Free memory was 178.5 MB in the beginning and 149.5 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 509.46 ms. Allocated memory is still 202.4 MB. Free memory was 148.9 MB in the beginning and 126.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 5 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...