./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01c80fcdd0a0da14cc25a34188deb5573e4a4209 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:06:12,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:06:12,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:06:12,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:06:12,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:06:12,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:06:12,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:06:12,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:06:12,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:06:12,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:06:12,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:06:12,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:06:12,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:06:12,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:06:12,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:06:12,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:06:12,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:06:12,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:06:12,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:06:12,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:06:12,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:06:12,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:06:12,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:06:12,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:06:12,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:06:12,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:06:12,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:06:12,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:06:12,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:06:12,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:06:12,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:06:12,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:06:12,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:06:12,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:06:12,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:06:12,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:06:12,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:06:12,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:06:12,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:06:12,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:06:12,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:06:12,863 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:06:12,885 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:06:12,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:06:12,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:06:12,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:06:12,888 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:06:12,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:06:12,888 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:06:12,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:06:12,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:06:12,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:06:12,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:06:12,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:06:12,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:06:12,892 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:06:12,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:06:12,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:06:12,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:06:12,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:06:12,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:06:12,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:06:12,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:06:12,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:06:12,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:06:12,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:06:12,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:06:12,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:06:12,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:06:12,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:06:12,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:06:12,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01c80fcdd0a0da14cc25a34188deb5573e4a4209 [2019-11-28 17:06:13,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:06:13,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:06:13,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:06:13,264 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:06:13,265 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:06:13,266 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-11-28 17:06:13,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89a8f3bee/fc9e5583c16f44c6a333a4505c3614dc/FLAGa55d742bb [2019-11-28 17:06:13,817 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:06:13,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-11-28 17:06:13,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89a8f3bee/fc9e5583c16f44c6a333a4505c3614dc/FLAGa55d742bb [2019-11-28 17:06:14,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89a8f3bee/fc9e5583c16f44c6a333a4505c3614dc [2019-11-28 17:06:14,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:06:14,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:06:14,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:06:14,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:06:14,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:06:14,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff623f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14, skipping insertion in model container [2019-11-28 17:06:14,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:06:14,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:06:14,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:06:14,515 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:06:14,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:06:14,552 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:06:14,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14 WrapperNode [2019-11-28 17:06:14,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:06:14,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:06:14,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:06:14,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:06:14,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:06:14,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:06:14,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:06:14,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:06:14,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (1/1) ... [2019-11-28 17:06:14,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:06:14,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:06:14,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:06:14,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:06:14,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (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 [2019-11-28 17:06:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:06:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:06:15,224 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:06:15,224 INFO L287 CfgBuilder]: Removed 38 assume(true) statements. [2019-11-28 17:06:15,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:06:15 BoogieIcfgContainer [2019-11-28 17:06:15,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:06:15,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:06:15,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:06:15,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:06:15,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:06:14" (1/3) ... [2019-11-28 17:06:15,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76952b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:06:15, skipping insertion in model container [2019-11-28 17:06:15,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:14" (2/3) ... [2019-11-28 17:06:15,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76952b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:06:15, skipping insertion in model container [2019-11-28 17:06:15,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:06:15" (3/3) ... [2019-11-28 17:06:15,238 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2019-11-28 17:06:15,246 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:06:15,252 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-11-28 17:06:15,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-11-28 17:06:15,291 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:06:15,291 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:06:15,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:06:15,292 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:06:15,292 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:06:15,292 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:06:15,293 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:06:15,293 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:06:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2019-11-28 17:06:15,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 17:06:15,321 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:06:15,322 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:06:15,322 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:06:15,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:06:15,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1542222103, now seen corresponding path program 1 times [2019-11-28 17:06:15,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:06:15,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292950299] [2019-11-28 17:06:15,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:06:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:06:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:06:15,506 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292950299] [2019-11-28 17:06:15,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:06:15,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:06:15,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984797357] [2019-11-28 17:06:15,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:06:15,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:06:15,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:06:15,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:06:15,531 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2019-11-28 17:06:15,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:06:15,762 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2019-11-28 17:06:15,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:06:15,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 17:06:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:06:15,779 INFO L225 Difference]: With dead ends: 147 [2019-11-28 17:06:15,780 INFO L226 Difference]: Without dead ends: 63 [2019-11-28 17:06:15,789 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:06:15,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-28 17:06:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2019-11-28 17:06:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 17:06:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2019-11-28 17:06:15,837 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 7 [2019-11-28 17:06:15,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:06:15,838 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2019-11-28 17:06:15,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:06:15,839 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2019-11-28 17:06:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 17:06:15,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:06:15,840 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:06:15,840 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:06:15,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:06:15,841 INFO L82 PathProgramCache]: Analyzing trace with hash -311568052, now seen corresponding path program 1 times [2019-11-28 17:06:15,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:06:15,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780003096] [2019-11-28 17:06:15,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:06:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:06:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:06:15,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780003096] [2019-11-28 17:06:15,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:06:15,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:06:15,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568878438] [2019-11-28 17:06:15,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:06:15,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:06:15,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:06:15,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:06:15,887 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 4 states. [2019-11-28 17:06:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:06:16,020 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2019-11-28 17:06:16,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:06:16,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 17:06:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:06:16,021 INFO L225 Difference]: With dead ends: 63 [2019-11-28 17:06:16,022 INFO L226 Difference]: Without dead ends: 48 [2019-11-28 17:06:16,023 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:06:16,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-28 17:06:16,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2019-11-28 17:06:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-28 17:06:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2019-11-28 17:06:16,041 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 9 [2019-11-28 17:06:16,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:06:16,041 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2019-11-28 17:06:16,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:06:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2019-11-28 17:06:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 17:06:16,043 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:06:16,043 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:06:16,044 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:06:16,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:06:16,045 INFO L82 PathProgramCache]: Analyzing trace with hash -390964457, now seen corresponding path program 1 times [2019-11-28 17:06:16,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:06:16,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633707545] [2019-11-28 17:06:16,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:06:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:06:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:06:16,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633707545] [2019-11-28 17:06:16,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:06:16,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:06:16,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381695789] [2019-11-28 17:06:16,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:06:16,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:06:16,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:06:16,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:06:16,137 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 5 states. [2019-11-28 17:06:16,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:06:16,281 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2019-11-28 17:06:16,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:06:16,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-28 17:06:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:06:16,285 INFO L225 Difference]: With dead ends: 60 [2019-11-28 17:06:16,285 INFO L226 Difference]: Without dead ends: 56 [2019-11-28 17:06:16,288 INFO L630 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 [2019-11-28 17:06:16,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-28 17:06:16,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2019-11-28 17:06:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-28 17:06:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-11-28 17:06:16,309 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 10 [2019-11-28 17:06:16,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:06:16,310 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2019-11-28 17:06:16,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:06:16,311 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2019-11-28 17:06:16,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 17:06:16,314 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:06:16,314 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:06:16,314 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:06:16,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:06:16,315 INFO L82 PathProgramCache]: Analyzing trace with hash -817718909, now seen corresponding path program 1 times [2019-11-28 17:06:16,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:06:16,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229923895] [2019-11-28 17:06:16,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:06:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:06:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 17:06:16,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229923895] [2019-11-28 17:06:16,416 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159585978] [2019-11-28 17:06:16,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:06:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:06:16,458 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 17:06:16,465 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:06:16,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:16,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:06:16,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:06:16,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2019-11-28 17:06:16,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188210213] [2019-11-28 17:06:16,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-28 17:06:16,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:06:16,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-28 17:06:16,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-11-28 17:06:16,700 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 13 states. [2019-11-28 17:06:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:06:16,893 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-11-28 17:06:16,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:06:16,894 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2019-11-28 17:06:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:06:16,895 INFO L225 Difference]: With dead ends: 54 [2019-11-28 17:06:16,895 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:06:16,896 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-11-28 17:06:16,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:06:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:06:16,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:06:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:06:16,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-28 17:06:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:06:16,897 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:06:16,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-28 17:06:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:06:16,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:06:17,103 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:06:17,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:06:17,362 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,362 INFO L246 CegarLoopResult]: For program point L52(lines 52 54) no Hoare annotation was computed. [2019-11-28 17:06:17,362 INFO L246 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-11-28 17:06:17,363 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,363 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:06:17,363 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,363 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,364 INFO L246 CegarLoopResult]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,364 INFO L246 CegarLoopResult]: For program point L4-6(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,364 INFO L242 CegarLoopResult]: At program point L4-8(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,364 INFO L246 CegarLoopResult]: For program point L4-9(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,364 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,365 INFO L242 CegarLoopResult]: At program point L4-11(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,365 INFO L246 CegarLoopResult]: For program point L4-12(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,365 INFO L242 CegarLoopResult]: At program point L4-14(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,365 INFO L246 CegarLoopResult]: For program point L4-15(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,366 INFO L242 CegarLoopResult]: At program point L4-17(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,366 INFO L246 CegarLoopResult]: For program point L4-18(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,366 INFO L242 CegarLoopResult]: At program point L4-20(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,366 INFO L246 CegarLoopResult]: For program point L4-21(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,366 INFO L246 CegarLoopResult]: For program point L4-24(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,367 INFO L242 CegarLoopResult]: At program point L4-26(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,367 INFO L246 CegarLoopResult]: For program point L4-27(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,367 INFO L242 CegarLoopResult]: At program point L4-29(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,367 INFO L246 CegarLoopResult]: For program point L4-30(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,367 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,367 INFO L246 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,368 INFO L242 CegarLoopResult]: At program point L4-32(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,368 INFO L246 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,368 INFO L246 CegarLoopResult]: For program point L4-33(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,368 INFO L246 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,368 INFO L246 CegarLoopResult]: For program point L5-4(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,369 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,369 INFO L246 CegarLoopResult]: For program point L5-5(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,369 INFO L246 CegarLoopResult]: For program point L4-36(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,369 INFO L246 CegarLoopResult]: For program point L5-6(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,369 INFO L246 CegarLoopResult]: For program point L5-7(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,369 INFO L242 CegarLoopResult]: At program point L4-38(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,370 INFO L246 CegarLoopResult]: For program point L5-8(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,370 INFO L246 CegarLoopResult]: For program point L4-39(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,370 INFO L246 CegarLoopResult]: For program point L5-9(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,370 INFO L246 CegarLoopResult]: For program point L5-10(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,370 INFO L242 CegarLoopResult]: At program point L4-41(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,371 INFO L246 CegarLoopResult]: For program point L5-11(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,371 INFO L246 CegarLoopResult]: For program point L4-42(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,371 INFO L246 CegarLoopResult]: For program point L5-12(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,371 INFO L246 CegarLoopResult]: For program point L5-13(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,371 INFO L242 CegarLoopResult]: At program point L4-44(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,371 INFO L246 CegarLoopResult]: For program point L5-14(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,372 INFO L246 CegarLoopResult]: For program point L4-45(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:06:17,372 INFO L246 CegarLoopResult]: For program point L5-15(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,372 INFO L249 CegarLoopResult]: At program point L4-47(lines 3 8) the Hoare annotation is: true [2019-11-28 17:06:17,372 INFO L246 CegarLoopResult]: For program point L40(lines 40 54) no Hoare annotation was computed. [2019-11-28 17:06:17,372 INFO L246 CegarLoopResult]: For program point L40-1(lines 40 54) no Hoare annotation was computed. [2019-11-28 17:06:17,372 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,373 INFO L246 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-11-28 17:06:17,373 INFO L246 CegarLoopResult]: For program point L41(lines 41 50) no Hoare annotation was computed. [2019-11-28 17:06:17,373 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:06:17,373 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,373 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,374 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,374 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,374 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,374 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:06:17,374 INFO L246 CegarLoopResult]: For program point L45(lines 45 49) no Hoare annotation was computed. [2019-11-28 17:06:17,374 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,375 INFO L249 CegarLoopResult]: At program point L62(lines 10 63) the Hoare annotation is: true [2019-11-28 17:06:17,375 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,375 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,375 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,375 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-28 17:06:17,376 INFO L246 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-28 17:06:17,376 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,376 INFO L242 CegarLoopResult]: At program point L34-2(lines 34 58) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start_main_~tagbuf_len~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,376 INFO L246 CegarLoopResult]: For program point L34-3(lines 34 58) no Hoare annotation was computed. [2019-11-28 17:06:17,376 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:06:17,376 INFO L242 CegarLoopResult]: At program point L18-2(lines 18 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-28 17:06:17,377 INFO L246 CegarLoopResult]: For program point L18-3(lines 18 30) no Hoare annotation was computed. [2019-11-28 17:06:17,377 INFO L246 CegarLoopResult]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-11-28 17:06:17,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:06:17 BoogieIcfgContainer [2019-11-28 17:06:17,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:06:17,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:06:17,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:06:17,406 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:06:17,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:06:15" (3/4) ... [2019-11-28 17:06:17,410 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:06:17,432 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2019-11-28 17:06:17,432 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:06:17,530 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:06:17,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:06:17,534 INFO L168 Benchmark]: Toolchain (without parser) took 3296.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 959.0 MB in the beginning and 934.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:17,535 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:06:17,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.23 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 947.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:17,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:17,536 INFO L168 Benchmark]: Boogie Preprocessor took 53.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:17,537 INFO L168 Benchmark]: RCFGBuilder took 458.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:17,537 INFO L168 Benchmark]: TraceAbstraction took 2177.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.4 MB in the end (delta: 166.4 MB). Peak memory consumption was 166.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:17,537 INFO L168 Benchmark]: Witness Printer took 125.33 ms. Allocated memory is still 1.2 GB. Free memory is still 934.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:06:17,540 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.23 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 947.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 158.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 458.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2177.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.4 MB in the end (delta: 166.4 MB). Peak memory consumption was 166.4 MB. Max. memory is 11.5 GB. * Witness Printer took 125.33 ms. Allocated memory is still 1.2 GB. Free memory is still 934.8 MB. There was no memory consumed. Max. memory is 11.5 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 - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 16 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: t <= tagbuf_len && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && 1 <= tagbuf_len) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 16 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 157 SDtfs, 214 SDslu, 155 SDs, 0 SdLazy, 227 SolverSat, 159 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 35 NumberOfFragments, 181 HoareAnnotationTreeSize, 16 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 3022 SizeOfPredicates, 8 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 2/12 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...