./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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 bcd185cb1de2ed2bd8f81bd3c9c6d7c275ed49ae ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:15:41,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:15:41,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:15:41,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:15:41,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:15:41,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:15:41,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:15:41,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:15:41,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:15:41,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:15:41,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:15:41,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:15:41,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:15:41,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:15:41,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:15:41,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:15:41,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:15:41,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:15:41,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:15:41,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:15:41,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:15:41,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:15:41,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:15:41,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:15:41,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:15:41,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:15:41,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:15:41,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:15:41,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:15:41,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:15:41,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:15:41,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:15:41,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:15:41,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:15:41,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:15:41,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:15:41,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:15:41,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:15:41,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:15:41,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:15:41,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:15:41,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:15:41,301 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:15:41,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:15:41,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:15:41,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:15:41,303 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:15:41,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:15:41,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:15:41,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:15:41,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:15:41,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:15:41,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:15:41,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:15:41,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:15:41,305 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:15:41,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:15:41,305 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:15:41,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:15:41,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:15:41,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:15:41,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:15:41,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:15:41,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:15:41,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:15:41,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:15:41,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:15:41,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:15:41,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:15:41,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:15:41,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:15:41,308 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 -> bcd185cb1de2ed2bd8f81bd3c9c6d7c275ed49ae [2020-07-28 18:15:41,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:15:41,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:15:41,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:15:41,647 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:15:41,649 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:15:41,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2020-07-28 18:15:41,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5270ada96/8a55aaebec36486d8c9017e761ff95a5/FLAGba9a43b19 [2020-07-28 18:15:42,117 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:15:42,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2020-07-28 18:15:42,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5270ada96/8a55aaebec36486d8c9017e761ff95a5/FLAGba9a43b19 [2020-07-28 18:15:42,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5270ada96/8a55aaebec36486d8c9017e761ff95a5 [2020-07-28 18:15:42,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:15:42,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:15:42,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:15:42,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:15:42,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:15:42,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38da57ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42, skipping insertion in model container [2020-07-28 18:15:42,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:15:42,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:15:42,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:15:42,781 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:15:42,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:15:42,834 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:15:42,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42 WrapperNode [2020-07-28 18:15:42,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:15:42,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:15:42,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:15:42,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:15:42,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:15:42,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:15:42,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:15:42,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:15:42,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (1/1) ... [2020-07-28 18:15:42,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:15:42,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:15:42,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:15:42,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:15:42,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (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 [2020-07-28 18:15:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:15:43,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:15:43,829 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:15:43,830 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-07-28 18:15:43,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:15:43 BoogieIcfgContainer [2020-07-28 18:15:43,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:15:43,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:15:43,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:15:43,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:15:43,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:15:42" (1/3) ... [2020-07-28 18:15:43,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512089aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:15:43, skipping insertion in model container [2020-07-28 18:15:43,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:15:42" (2/3) ... [2020-07-28 18:15:43,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512089aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:15:43, skipping insertion in model container [2020-07-28 18:15:43,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:15:43" (3/3) ... [2020-07-28 18:15:43,845 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2020-07-28 18:15:43,857 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:15:43,865 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-07-28 18:15:43,881 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-07-28 18:15:43,908 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:15:43,908 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:15:43,908 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:15:43,909 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:15:43,909 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:15:43,909 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:15:43,910 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:15:43,910 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:15:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-07-28 18:15:43,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:15:43,939 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:15:43,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:15:43,941 INFO L427 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]=== [2020-07-28 18:15:43,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:15:43,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1542222103, now seen corresponding path program 1 times [2020-07-28 18:15:43,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:15:43,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082356646] [2020-07-28 18:15:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:15:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:15:44,166 INFO L280 TraceCheckUtils]: 0: Hoare triple {82#true} havoc main_#res;havoc main_#t~nondet0, main_#t~pre1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~nondet5, main_#t~nondet6, main_#t~post7, main_#t~nondet8, main_#t~post9, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~tagbuf_len~0 := main_#t~nondet0;havoc main_#t~nondet0; {82#true} is VALID [2020-07-28 18:15:44,167 INFO L280 TraceCheckUtils]: 1: Hoare triple {82#true} assume main_~tagbuf_len~0 >= 1; {82#true} is VALID [2020-07-28 18:15:44,169 INFO L280 TraceCheckUtils]: 2: Hoare triple {82#true} main_~t~0 := 0;main_#t~pre1 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre1; {84#(<= 0 ULTIMATE.start_main_~t~0)} is VALID [2020-07-28 18:15:44,170 INFO L280 TraceCheckUtils]: 3: Hoare triple {84#(<= 0 ULTIMATE.start_main_~t~0)} assume !false; {84#(<= 0 ULTIMATE.start_main_~t~0)} is VALID [2020-07-28 18:15:44,171 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#(<= 0 ULTIMATE.start_main_~t~0)} assume main_~t~0 == main_~tagbuf_len~0;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {85#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2020-07-28 18:15:44,173 INFO L280 TraceCheckUtils]: 5: Hoare triple {85#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume 0 == __VERIFIER_assert_~cond; {83#false} is VALID [2020-07-28 18:15:44,173 INFO L280 TraceCheckUtils]: 6: Hoare triple {83#false} assume !false; {83#false} is VALID [2020-07-28 18:15:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:15:44,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082356646] [2020-07-28 18:15:44,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:15:44,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:15:44,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070968470] [2020-07-28 18:15:44,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 18:15:44,188 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:15:44,192 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 18:15:44,208 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:44,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 18:15:44,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:15:44,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 18:15:44,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 18:15:44,222 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2020-07-28 18:15:44,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:44,681 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2020-07-28 18:15:44,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 18:15:44,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 18:15:44,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:15:44,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:15:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2020-07-28 18:15:44,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:15:44,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2020-07-28 18:15:44,718 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 203 transitions. [2020-07-28 18:15:44,987 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 203 edges. 203 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:45,003 INFO L225 Difference]: With dead ends: 147 [2020-07-28 18:15:45,004 INFO L226 Difference]: Without dead ends: 63 [2020-07-28 18:15:45,008 INFO L675 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 [2020-07-28 18:15:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-28 18:15:45,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-07-28 18:15:45,072 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:15:45,073 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 59 states. [2020-07-28 18:15:45,074 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 59 states. [2020-07-28 18:15:45,074 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 59 states. [2020-07-28 18:15:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:45,079 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-07-28 18:15:45,080 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2020-07-28 18:15:45,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:45,081 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:45,081 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 63 states. [2020-07-28 18:15:45,081 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 63 states. [2020-07-28 18:15:45,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:45,086 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-07-28 18:15:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2020-07-28 18:15:45,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:45,088 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:45,088 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:15:45,088 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:15:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-28 18:15:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2020-07-28 18:15:45,094 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 7 [2020-07-28 18:15:45,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:15:45,094 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2020-07-28 18:15:45,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 18:15:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2020-07-28 18:15:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 18:15:45,095 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:15:45,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:15:45,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:15:45,097 INFO L427 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]=== [2020-07-28 18:15:45,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:15:45,097 INFO L82 PathProgramCache]: Analyzing trace with hash -311568052, now seen corresponding path program 1 times [2020-07-28 18:15:45,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:15:45,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029617765] [2020-07-28 18:15:45,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:15:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:15:45,167 INFO L280 TraceCheckUtils]: 0: Hoare triple {471#true} havoc main_#res;havoc main_#t~nondet0, main_#t~pre1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~nondet5, main_#t~nondet6, main_#t~post7, main_#t~nondet8, main_#t~post9, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~tagbuf_len~0 := main_#t~nondet0;havoc main_#t~nondet0; {471#true} is VALID [2020-07-28 18:15:45,168 INFO L280 TraceCheckUtils]: 1: Hoare triple {471#true} assume main_~tagbuf_len~0 >= 1; {471#true} is VALID [2020-07-28 18:15:45,168 INFO L280 TraceCheckUtils]: 2: Hoare triple {471#true} main_~t~0 := 0;main_#t~pre1 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre1; {471#true} is VALID [2020-07-28 18:15:45,168 INFO L280 TraceCheckUtils]: 3: Hoare triple {471#true} assume !false; {471#true} is VALID [2020-07-28 18:15:45,171 INFO L280 TraceCheckUtils]: 4: Hoare triple {471#true} assume main_~t~0 == main_~tagbuf_len~0;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {473#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,172 INFO L280 TraceCheckUtils]: 5: Hoare triple {473#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !(0 == __VERIFIER_assert_~cond); {473#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,173 INFO L280 TraceCheckUtils]: 6: Hoare triple {473#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {474#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2020-07-28 18:15:45,175 INFO L280 TraceCheckUtils]: 7: Hoare triple {474#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume 0 == __VERIFIER_assert_~cond; {472#false} is VALID [2020-07-28 18:15:45,175 INFO L280 TraceCheckUtils]: 8: Hoare triple {472#false} assume !false; {472#false} is VALID [2020-07-28 18:15:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:15:45,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029617765] [2020-07-28 18:15:45,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:15:45,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:15:45,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041412349] [2020-07-28 18:15:45,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 18:15:45,181 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:15:45,182 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 18:15:45,195 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:45,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 18:15:45,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:15:45,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 18:15:45,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 18:15:45,196 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 4 states. [2020-07-28 18:15:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:45,532 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-07-28 18:15:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 18:15:45,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 18:15:45,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:15:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:15:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2020-07-28 18:15:45,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:15:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2020-07-28 18:15:45,541 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 68 transitions. [2020-07-28 18:15:45,642 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:45,644 INFO L225 Difference]: With dead ends: 63 [2020-07-28 18:15:45,645 INFO L226 Difference]: Without dead ends: 48 [2020-07-28 18:15:45,647 INFO L675 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 [2020-07-28 18:15:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-28 18:15:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-07-28 18:15:45,684 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:15:45,684 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand 44 states. [2020-07-28 18:15:45,685 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 44 states. [2020-07-28 18:15:45,685 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 44 states. [2020-07-28 18:15:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:45,688 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-07-28 18:15:45,688 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-07-28 18:15:45,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:45,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:45,689 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 48 states. [2020-07-28 18:15:45,689 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 48 states. [2020-07-28 18:15:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:45,692 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-07-28 18:15:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-07-28 18:15:45,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:45,693 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:45,693 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:15:45,694 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:15:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-28 18:15:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-07-28 18:15:45,696 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 9 [2020-07-28 18:15:45,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:15:45,696 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-07-28 18:15:45,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 18:15:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-07-28 18:15:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 18:15:45,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:15:45,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:15:45,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:15:45,698 INFO L427 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]=== [2020-07-28 18:15:45,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:15:45,699 INFO L82 PathProgramCache]: Analyzing trace with hash -390964457, now seen corresponding path program 1 times [2020-07-28 18:15:45,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:15:45,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235042170] [2020-07-28 18:15:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:15:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:15:45,773 INFO L280 TraceCheckUtils]: 0: Hoare triple {708#true} havoc main_#res;havoc main_#t~nondet0, main_#t~pre1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~nondet5, main_#t~nondet6, main_#t~post7, main_#t~nondet8, main_#t~post9, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~tagbuf_len~0 := main_#t~nondet0;havoc main_#t~nondet0; {708#true} is VALID [2020-07-28 18:15:45,774 INFO L280 TraceCheckUtils]: 1: Hoare triple {708#true} assume main_~tagbuf_len~0 >= 1; {710#(<= 1 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,776 INFO L280 TraceCheckUtils]: 2: Hoare triple {710#(<= 1 ULTIMATE.start_main_~tagbuf_len~0)} main_~t~0 := 0;main_#t~pre1 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre1; {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,776 INFO L280 TraceCheckUtils]: 3: Hoare triple {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !false; {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,777 INFO L280 TraceCheckUtils]: 4: Hoare triple {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !(main_~t~0 == main_~tagbuf_len~0);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647; {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,778 INFO L280 TraceCheckUtils]: 5: Hoare triple {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,779 INFO L280 TraceCheckUtils]: 6: Hoare triple {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !(0 == __VERIFIER_assert_~cond); {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:45,780 INFO L280 TraceCheckUtils]: 7: Hoare triple {711#(<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {712#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2020-07-28 18:15:45,781 INFO L280 TraceCheckUtils]: 8: Hoare triple {712#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume 0 == __VERIFIER_assert_~cond; {709#false} is VALID [2020-07-28 18:15:45,782 INFO L280 TraceCheckUtils]: 9: Hoare triple {709#false} assume !false; {709#false} is VALID [2020-07-28 18:15:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:15:45,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235042170] [2020-07-28 18:15:45,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:15:45,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:15:45,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928697304] [2020-07-28 18:15:45,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-28 18:15:45,785 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:15:45,785 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:15:45,798 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:45,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:15:45,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:15:45,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:15:45,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:15:45,799 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 5 states. [2020-07-28 18:15:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:46,116 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-07-28 18:15:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:15:46,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-28 18:15:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:15:46,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:15:46,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2020-07-28 18:15:46,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:15:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2020-07-28 18:15:46,122 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 64 transitions. [2020-07-28 18:15:46,195 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:46,197 INFO L225 Difference]: With dead ends: 60 [2020-07-28 18:15:46,197 INFO L226 Difference]: Without dead ends: 56 [2020-07-28 18:15:46,198 INFO L675 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 [2020-07-28 18:15:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-28 18:15:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2020-07-28 18:15:46,243 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:15:46,243 INFO L82 GeneralOperation]: Start isEquivalent. First operand 56 states. Second operand 54 states. [2020-07-28 18:15:46,244 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 54 states. [2020-07-28 18:15:46,244 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 54 states. [2020-07-28 18:15:46,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:46,247 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-07-28 18:15:46,247 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-07-28 18:15:46,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:46,248 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:46,248 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 56 states. [2020-07-28 18:15:46,249 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 56 states. [2020-07-28 18:15:46,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:46,251 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-07-28 18:15:46,252 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-07-28 18:15:46,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:46,252 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:46,253 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:15:46,253 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:15:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-28 18:15:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-07-28 18:15:46,255 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 10 [2020-07-28 18:15:46,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:15:46,256 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-07-28 18:15:46,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:15:46,256 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-07-28 18:15:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 18:15:46,257 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:15:46,257 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:15:46,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:15:46,258 INFO L427 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]=== [2020-07-28 18:15:46,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:15:46,259 INFO L82 PathProgramCache]: Analyzing trace with hash -817718909, now seen corresponding path program 1 times [2020-07-28 18:15:46,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:15:46,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902368335] [2020-07-28 18:15:46,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:15:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:15:46,469 INFO L280 TraceCheckUtils]: 0: Hoare triple {973#true} havoc main_#res;havoc main_#t~nondet0, main_#t~pre1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~nondet5, main_#t~nondet6, main_#t~post7, main_#t~nondet8, main_#t~post9, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~tagbuf_len~0 := main_#t~nondet0;havoc main_#t~nondet0; {973#true} is VALID [2020-07-28 18:15:46,470 INFO L280 TraceCheckUtils]: 1: Hoare triple {973#true} assume main_~tagbuf_len~0 >= 1; {975#(<= 1 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:46,471 INFO L280 TraceCheckUtils]: 2: Hoare triple {975#(<= 1 ULTIMATE.start_main_~tagbuf_len~0)} main_~t~0 := 0;main_#t~pre1 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre1; {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} is VALID [2020-07-28 18:15:46,471 INFO L280 TraceCheckUtils]: 3: Hoare triple {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} assume !false; {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} is VALID [2020-07-28 18:15:46,479 INFO L280 TraceCheckUtils]: 4: Hoare triple {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} assume !(main_~t~0 == main_~tagbuf_len~0);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647; {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:46,480 INFO L280 TraceCheckUtils]: 5: Hoare triple {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:46,481 INFO L280 TraceCheckUtils]: 6: Hoare triple {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !(0 == __VERIFIER_assert_~cond); {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:46,482 INFO L280 TraceCheckUtils]: 7: Hoare triple {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:46,482 INFO L280 TraceCheckUtils]: 8: Hoare triple {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} assume !(0 == __VERIFIER_assert_~cond); {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:46,484 INFO L280 TraceCheckUtils]: 9: Hoare triple {977#(< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)} main_#t~post3 := main_~t~0;main_~t~0 := 1 + main_#t~post3;havoc main_#t~post3; {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} is VALID [2020-07-28 18:15:46,485 INFO L280 TraceCheckUtils]: 10: Hoare triple {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} assume !false; {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} is VALID [2020-07-28 18:15:46,486 INFO L280 TraceCheckUtils]: 11: Hoare triple {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} assume !(main_~t~0 == main_~tagbuf_len~0);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647; {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} is VALID [2020-07-28 18:15:46,487 INFO L280 TraceCheckUtils]: 12: Hoare triple {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} is VALID [2020-07-28 18:15:46,487 INFO L280 TraceCheckUtils]: 13: Hoare triple {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} assume !(0 == __VERIFIER_assert_~cond); {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} is VALID [2020-07-28 18:15:46,489 INFO L280 TraceCheckUtils]: 14: Hoare triple {976#(< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1))} __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {978#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2020-07-28 18:15:46,490 INFO L280 TraceCheckUtils]: 15: Hoare triple {978#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume 0 == __VERIFIER_assert_~cond; {974#false} is VALID [2020-07-28 18:15:46,490 INFO L280 TraceCheckUtils]: 16: Hoare triple {974#false} assume !false; {974#false} is VALID [2020-07-28 18:15:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-28 18:15:46,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902368335] [2020-07-28 18:15:46,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179021683] [2020-07-28 18:15:46,493 INFO L95 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 [2020-07-28 18:15:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:15:46,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 18:15:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:15:46,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:15:46,853 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 18:15:46,895 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-28 18:15:46,938 INFO L280 TraceCheckUtils]: 0: Hoare triple {973#true} havoc main_#res;havoc main_#t~nondet0, main_#t~pre1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~nondet5, main_#t~nondet6, main_#t~post7, main_#t~nondet8, main_#t~post9, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~tagbuf_len~0 := main_#t~nondet0;havoc main_#t~nondet0; {973#true} is VALID [2020-07-28 18:15:46,939 INFO L280 TraceCheckUtils]: 1: Hoare triple {973#true} assume main_~tagbuf_len~0 >= 1; {975#(<= 1 ULTIMATE.start_main_~tagbuf_len~0)} is VALID [2020-07-28 18:15:46,941 INFO L280 TraceCheckUtils]: 2: Hoare triple {975#(<= 1 ULTIMATE.start_main_~tagbuf_len~0)} main_~t~0 := 0;main_#t~pre1 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre1; {988#(and (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,942 INFO L280 TraceCheckUtils]: 3: Hoare triple {988#(and (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !false; {988#(and (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,943 INFO L280 TraceCheckUtils]: 4: Hoare triple {988#(and (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !(main_~t~0 == main_~tagbuf_len~0);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647; {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,944 INFO L280 TraceCheckUtils]: 5: Hoare triple {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,946 INFO L280 TraceCheckUtils]: 6: Hoare triple {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !(0 == __VERIFIER_assert_~cond); {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,947 INFO L280 TraceCheckUtils]: 7: Hoare triple {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,948 INFO L280 TraceCheckUtils]: 8: Hoare triple {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !(0 == __VERIFIER_assert_~cond); {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,950 INFO L280 TraceCheckUtils]: 9: Hoare triple {995#(and (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (<= ULTIMATE.start_main_~t~0 0) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} main_#t~post3 := main_~t~0;main_~t~0 := 1 + main_#t~post3;havoc main_#t~post3; {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,951 INFO L280 TraceCheckUtils]: 10: Hoare triple {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !false; {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,952 INFO L280 TraceCheckUtils]: 11: Hoare triple {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !(main_~t~0 == main_~tagbuf_len~0);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647; {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,953 INFO L280 TraceCheckUtils]: 12: Hoare triple {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,954 INFO L280 TraceCheckUtils]: 13: Hoare triple {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} assume !(0 == __VERIFIER_assert_~cond); {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} is VALID [2020-07-28 18:15:46,955 INFO L280 TraceCheckUtils]: 14: Hoare triple {1011#(and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= ULTIMATE.start_main_~t~0 1) (<= 0 ULTIMATE.start_main_~tagbuf_len~0))} __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {1027#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)} is VALID [2020-07-28 18:15:46,956 INFO L280 TraceCheckUtils]: 15: Hoare triple {1027#(<= 1 ULTIMATE.start___VERIFIER_assert_~cond)} assume 0 == __VERIFIER_assert_~cond; {974#false} is VALID [2020-07-28 18:15:46,956 INFO L280 TraceCheckUtils]: 16: Hoare triple {974#false} assume !false; {974#false} is VALID [2020-07-28 18:15:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:15:46,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 18:15:46,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2020-07-28 18:15:46,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806000057] [2020-07-28 18:15:46,960 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-07-28 18:15:46,960 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:15:46,960 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 18:15:46,995 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:46,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 18:15:46,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:15:46,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 18:15:46,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-28 18:15:46,996 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 10 states. [2020-07-28 18:15:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:47,889 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2020-07-28 18:15:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-28 18:15:47,889 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-07-28 18:15:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:15:47,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 18:15:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 98 transitions. [2020-07-28 18:15:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 18:15:47,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 98 transitions. [2020-07-28 18:15:47,895 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 98 transitions. [2020-07-28 18:15:48,039 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:15:48,039 INFO L225 Difference]: With dead ends: 86 [2020-07-28 18:15:48,039 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 18:15:48,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-07-28 18:15:48,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 18:15:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 18:15:48,041 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:15:48,042 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 18:15:48,042 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:15:48,042 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:15:48,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:48,042 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:15:48,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:15:48,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:48,043 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:48,043 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:15:48,043 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:15:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:15:48,043 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:15:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:15:48,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:48,044 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:15:48,044 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:15:48,044 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:15:48,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 18:15:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 18:15:48,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 18:15:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:15:48,046 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 18:15:48,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 18:15:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:15:48,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:15:48,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:15:48,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 18:15:48,668 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 18:15:48,669 INFO L264 CegarLoopResult]: At program point L37-2(lines 37 61) the Hoare annotation is: (and (< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,669 INFO L268 CegarLoopResult]: For program point L37-3(lines 37 61) no Hoare annotation was computed. [2020-07-28 18:15:48,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,670 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 33) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~t~0))) (or (and (<= ULTIMATE.start_main_~t~0 0) .cse0 (<= 0 ULTIMATE.start_main_~tagbuf_len~0)) (and (< ULTIMATE.start_main_~t~0 (+ ULTIMATE.start_main_~tagbuf_len~0 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0))) [2020-07-28 18:15:48,670 INFO L268 CegarLoopResult]: For program point L21-3(lines 21 33) no Hoare annotation was computed. [2020-07-28 18:15:48,670 INFO L268 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-07-28 18:15:48,670 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,670 INFO L268 CegarLoopResult]: For program point L55(lines 55 57) no Hoare annotation was computed. [2020-07-28 18:15:48,670 INFO L268 CegarLoopResult]: For program point L22(lines 22 26) no Hoare annotation was computed. [2020-07-28 18:15:48,670 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,670 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) 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)) [2020-07-28 18:15:48,671 INFO L268 CegarLoopResult]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,671 INFO L268 CegarLoopResult]: For program point L7-6(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,671 INFO L264 CegarLoopResult]: At program point L7-8(lines 6 11) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,671 INFO L268 CegarLoopResult]: For program point L7-9(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,677 INFO L264 CegarLoopResult]: At program point L7-11(lines 6 11) the Hoare annotation is: (and (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,677 INFO L268 CegarLoopResult]: For program point L7-12(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,677 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,678 INFO L264 CegarLoopResult]: At program point L7-14(lines 6 11) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,678 INFO L268 CegarLoopResult]: For program point L7-15(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,678 INFO L264 CegarLoopResult]: At program point L7-17(lines 6 11) the Hoare annotation is: (and (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,678 INFO L268 CegarLoopResult]: For program point L7-18(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,678 INFO L264 CegarLoopResult]: At program point L7-20(lines 6 11) 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)) [2020-07-28 18:15:48,679 INFO L268 CegarLoopResult]: For program point L7-21(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,679 INFO L268 CegarLoopResult]: For program point L7-24(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,679 INFO L264 CegarLoopResult]: At program point L7-26(lines 6 11) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,679 INFO L268 CegarLoopResult]: For program point L7-27(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,679 INFO L264 CegarLoopResult]: At program point L7-29(lines 6 11) the Hoare annotation is: (and (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,682 INFO L268 CegarLoopResult]: For program point L7-30(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,682 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,683 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,683 INFO L264 CegarLoopResult]: At program point L7-32(lines 6 11) 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)) [2020-07-28 18:15:48,683 INFO L268 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,683 INFO L268 CegarLoopResult]: For program point L7-33(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,683 INFO L268 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,684 INFO L268 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,684 INFO L268 CegarLoopResult]: For program point L8-5(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,684 INFO L268 CegarLoopResult]: For program point L7-36(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,684 INFO L268 CegarLoopResult]: For program point L8-6(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,684 INFO L268 CegarLoopResult]: For program point L8-7(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,685 INFO L264 CegarLoopResult]: At program point L7-38(lines 6 11) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 18:15:48,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,685 INFO L268 CegarLoopResult]: For program point L8-8(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,685 INFO L268 CegarLoopResult]: For program point L7-39(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,685 INFO L268 CegarLoopResult]: For program point L8-9(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,686 INFO L268 CegarLoopResult]: For program point L8-10(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,686 INFO L264 CegarLoopResult]: At program point L7-41(lines 6 11) the Hoare annotation is: (and (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,686 INFO L268 CegarLoopResult]: For program point L8-11(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,686 INFO L268 CegarLoopResult]: For program point L7-42(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,686 INFO L268 CegarLoopResult]: For program point L8-12(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,689 INFO L268 CegarLoopResult]: For program point L8-13(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,689 INFO L264 CegarLoopResult]: At program point L7-44(lines 6 11) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-07-28 18:15:48,689 INFO L268 CegarLoopResult]: For program point L8-14(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,689 INFO L268 CegarLoopResult]: For program point L7-45(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:15:48,689 INFO L268 CegarLoopResult]: For program point L8-15(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,690 INFO L271 CegarLoopResult]: At program point L7-47(lines 6 11) the Hoare annotation is: true [2020-07-28 18:15:48,690 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,690 INFO L268 CegarLoopResult]: For program point L43(lines 43 57) no Hoare annotation was computed. [2020-07-28 18:15:48,691 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,691 INFO L268 CegarLoopResult]: For program point L43-1(lines 43 57) no Hoare annotation was computed. [2020-07-28 18:15:48,691 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,692 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-07-28 18:15:48,692 INFO L268 CegarLoopResult]: For program point L44(lines 44 53) no Hoare annotation was computed. [2020-07-28 18:15:48,692 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,692 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 18:15:48,692 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,693 INFO L268 CegarLoopResult]: For program point L48(lines 48 52) no Hoare annotation was computed. [2020-07-28 18:15:48,694 INFO L271 CegarLoopResult]: At program point L65(lines 13 66) the Hoare annotation is: true [2020-07-28 18:15:48,694 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,694 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:15:48,695 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-28 18:15:48,695 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-07-28 18:15:48,700 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:15:48,701 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 18:15:48,701 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 18:15:48,701 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-28 18:15:48,701 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2020-07-28 18:15:48,701 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2020-07-28 18:15:48,702 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 18:15:48,702 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:15:48,702 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2020-07-28 18:15:48,702 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 18:15:48,702 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 18:15:48,702 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:15:48,703 WARN L170 areAnnotationChecker]: L7-12 has no Hoare annotation [2020-07-28 18:15:48,703 WARN L170 areAnnotationChecker]: L7-12 has no Hoare annotation [2020-07-28 18:15:48,703 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 18:15:48,703 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 18:15:48,703 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 18:15:48,703 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 18:15:48,704 WARN L170 areAnnotationChecker]: L8-4 has no Hoare annotation [2020-07-28 18:15:48,704 WARN L170 areAnnotationChecker]: L8-4 has no Hoare annotation [2020-07-28 18:15:48,704 WARN L170 areAnnotationChecker]: L7-15 has no Hoare annotation [2020-07-28 18:15:48,705 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 18:15:48,705 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 18:15:48,705 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 18:15:48,705 WARN L170 areAnnotationChecker]: L7-6 has no Hoare annotation [2020-07-28 18:15:48,705 WARN L170 areAnnotationChecker]: L7-6 has no Hoare annotation [2020-07-28 18:15:48,705 WARN L170 areAnnotationChecker]: L7-15 has no Hoare annotation [2020-07-28 18:15:48,706 WARN L170 areAnnotationChecker]: L7-15 has no Hoare annotation [2020-07-28 18:15:48,706 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 18:15:48,706 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 18:15:48,706 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-28 18:15:48,706 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-28 18:15:48,707 WARN L170 areAnnotationChecker]: L7-9 has no Hoare annotation [2020-07-28 18:15:48,707 WARN L170 areAnnotationChecker]: L8-5 has no Hoare annotation [2020-07-28 18:15:48,707 WARN L170 areAnnotationChecker]: L8-5 has no Hoare annotation [2020-07-28 18:15:48,710 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L7-9 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L7-9 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L8-3 has no Hoare annotation [2020-07-28 18:15:48,711 WARN L170 areAnnotationChecker]: L8-3 has no Hoare annotation [2020-07-28 18:15:48,714 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L7-42 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L7-42 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L7-18 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L7-18 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L8-14 has no Hoare annotation [2020-07-28 18:15:48,715 WARN L170 areAnnotationChecker]: L8-14 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L7-45 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L8-6 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L8-6 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L7-21 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L7-45 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L7-45 has no Hoare annotation [2020-07-28 18:15:48,716 WARN L170 areAnnotationChecker]: L7-21 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L7-21 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L7-24 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L7-24 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L43-1 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L8-15 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L8-15 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L8-7 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L8-7 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L8-8 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L8-8 has no Hoare annotation [2020-07-28 18:15:48,717 WARN L170 areAnnotationChecker]: L7-27 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L7-36 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L7-36 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L7-27 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L7-27 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L8-12 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L8-12 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L7-39 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L8-9 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L8-9 has no Hoare annotation [2020-07-28 18:15:48,718 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 18:15:48,719 WARN L170 areAnnotationChecker]: L7-39 has no Hoare annotation [2020-07-28 18:15:48,719 WARN L170 areAnnotationChecker]: L7-39 has no Hoare annotation [2020-07-28 18:15:48,719 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 18:15:48,719 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 18:15:48,719 WARN L170 areAnnotationChecker]: L8-13 has no Hoare annotation [2020-07-28 18:15:48,719 WARN L170 areAnnotationChecker]: L8-13 has no Hoare annotation [2020-07-28 18:15:48,721 WARN L170 areAnnotationChecker]: L7-30 has no Hoare annotation [2020-07-28 18:15:48,721 WARN L170 areAnnotationChecker]: L7-30 has no Hoare annotation [2020-07-28 18:15:48,721 WARN L170 areAnnotationChecker]: L8-10 has no Hoare annotation [2020-07-28 18:15:48,721 WARN L170 areAnnotationChecker]: L8-10 has no Hoare annotation [2020-07-28 18:15:48,721 WARN L170 areAnnotationChecker]: L7-33 has no Hoare annotation [2020-07-28 18:15:48,722 WARN L170 areAnnotationChecker]: L7-33 has no Hoare annotation [2020-07-28 18:15:48,722 WARN L170 areAnnotationChecker]: L7-33 has no Hoare annotation [2020-07-28 18:15:48,722 WARN L170 areAnnotationChecker]: L8-11 has no Hoare annotation [2020-07-28 18:15:48,722 WARN L170 areAnnotationChecker]: L8-11 has no Hoare annotation [2020-07-28 18:15:48,722 INFO L163 areAnnotationChecker]: CFG has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:15:48,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:15:48 BoogieIcfgContainer [2020-07-28 18:15:48,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:15:48,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:15:48,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:15:48,740 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:15:48,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:15:43" (3/4) ... [2020-07-28 18:15:48,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 18:15:48,759 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2020-07-28 18:15:48,759 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 18:15:48,839 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:15:48,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:15:48,842 INFO L168 Benchmark]: Toolchain (without parser) took 6276.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.1 MB). Free memory was 953.5 MB in the beginning and 893.0 MB in the end (delta: 60.5 MB). Peak memory consumption was 267.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:15:48,843 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:15:48,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.47 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 942.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:15:48,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 942.8 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:15:48,844 INFO L168 Benchmark]: Boogie Preprocessor took 39.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:15:48,845 INFO L168 Benchmark]: RCFGBuilder took 847.04 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:15:48,845 INFO L168 Benchmark]: TraceAbstraction took 4902.50 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 900.5 MB in the end (delta: 194.7 MB). Peak memory consumption was 258.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:15:48,846 INFO L168 Benchmark]: Witness Printer took 99.48 ms. Allocated memory is still 1.2 GB. Free memory was 900.5 MB in the beginning and 893.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:15:48,848 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.47 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 942.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 942.8 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 847.04 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4902.50 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 900.5 MB in the end (delta: 194.7 MB). Peak memory consumption was 258.2 MB. Max. memory is 11.5 GB. * Witness Printer took 99.48 ms. Allocated memory is still 1.2 GB. Free memory was 900.5 MB in the beginning and 893.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: 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: 6]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (!(0 == cond) && t < tagbuf_len) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (t < tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((t <= 0 && 0 <= t) && 0 <= tagbuf_len) || ((t < tagbuf_len + 1 && 1 <= cond) && 0 <= t) - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (t < tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (!(0 == cond) && t < tagbuf_len) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (t < tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (t < tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (!(0 == cond) && t < tagbuf_len) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (!(0 == cond) && t < tagbuf_len) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (t < tagbuf_len + 1 && 1 <= cond) && 0 <= t - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (!(0 == cond) && t < tagbuf_len) && 0 <= t - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 162 SDtfs, 264 SDslu, 191 SDs, 0 SdLazy, 293 SolverSat, 201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 50 NumberOfFragments, 165 HoareAnnotationTreeSize, 16 FomulaSimplifications, 292 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 190 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 3390 SizeOfPredicates, 4 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 8 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...