./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a28669cb9b241f33b1fd8e4286127a35464e045 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:50:53,149 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:50:53,150 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:50:53,158 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:50:53,158 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:50:53,159 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:50:53,160 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:50:53,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:50:53,163 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:50:53,163 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:50:53,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:50:53,164 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:50:53,165 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:50:53,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:50:53,167 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:50:53,167 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:50:53,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:50:53,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:50:53,171 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:50:53,172 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:50:53,172 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:50:53,173 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:50:53,175 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:50:53,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:50:53,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:50:53,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:50:53,176 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:50:53,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:50:53,177 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:50:53,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:50:53,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:50:53,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:50:53,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:50:53,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:50:53,180 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:50:53,181 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:50:53,181 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 12:50:53,191 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:50:53,191 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:50:53,192 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:50:53,192 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:50:53,192 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 12:50:53,192 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 12:50:53,192 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 12:50:53,192 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 12:50:53,192 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 12:50:53,192 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 12:50:53,193 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 12:50:53,193 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 12:50:53,193 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 12:50:53,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:50:53,193 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:50:53,194 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:50:53,194 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:50:53,195 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:50:53,195 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:50:53,195 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:50:53,195 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:50:53,195 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:50:53,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:50:53,196 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:50:53,196 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:50:53,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:50:53,196 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:50:53,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:50:53,196 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:50:53,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:50:53,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:50:53,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:50:53,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:50:53,197 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 12:50:53,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:50:53,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:50:53,197 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:50:53,197 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan 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 -> Taipan 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 -> 7a28669cb9b241f33b1fd8e4286127a35464e045 [2018-11-23 12:50:53,222 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:50:53,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:50:53,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:50:53,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:50:53,238 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:50:53,239 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c [2018-11-23 12:50:53,283 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/data/69ad6f014/4f7337ee2c0d468f9407588ab51177a0/FLAGf63db2482 [2018-11-23 12:50:53,668 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:50:53,668 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/sv-benchmarks/c/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c [2018-11-23 12:50:53,677 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/data/69ad6f014/4f7337ee2c0d468f9407588ab51177a0/FLAGf63db2482 [2018-11-23 12:50:54,049 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/data/69ad6f014/4f7337ee2c0d468f9407588ab51177a0 [2018-11-23 12:50:54,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:50:54,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:50:54,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:50:54,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:50:54,055 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:50:54,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342d28a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54, skipping insertion in model container [2018-11-23 12:50:54,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:50:54,099 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:50:54,342 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:50:54,345 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:50:54,410 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:50:54,420 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:50:54,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54 WrapperNode [2018-11-23 12:50:54,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:50:54,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:50:54,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:50:54,421 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:50:54,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:50:54,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:50:54,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:50:54,504 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:50:54,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... [2018-11-23 12:50:54,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:50:54,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:50:54,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:50:54,556 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:50:54,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/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 [2018-11-23 12:50:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 12:50:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:50:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:50:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 12:50:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 12:50:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:50:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:50:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:50:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:50:55,305 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:50:55,306 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 12:50:55,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:55 BoogieIcfgContainer [2018-11-23 12:50:55,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:50:55,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:50:55,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:50:55,309 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:50:55,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:50:54" (1/3) ... [2018-11-23 12:50:55,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3734a1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:50:55, skipping insertion in model container [2018-11-23 12:50:55,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:54" (2/3) ... [2018-11-23 12:50:55,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3734a1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:50:55, skipping insertion in model container [2018-11-23 12:50:55,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:55" (3/3) ... [2018-11-23 12:50:55,312 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label46_true-unreach-call_false-termination.c [2018-11-23 12:50:55,318 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:50:55,324 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:50:55,334 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:50:55,356 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:50:55,357 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:50:55,357 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:50:55,357 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:50:55,357 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:50:55,357 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:50:55,357 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:50:55,357 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:50:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-11-23 12:50:55,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-23 12:50:55,381 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:50:55,382 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:50:55,384 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:50:55,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:50:55,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1447421978, now seen corresponding path program 1 times [2018-11-23 12:50:55,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:50:55,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:50:55,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:50:55,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:50:55,419 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:50:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:50:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:50:55,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:50:55,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 12:50:55,676 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:50:55,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 12:50:55,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 12:50:55,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 12:50:55,690 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-11-23 12:50:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:50:56,231 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-11-23 12:50:56,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 12:50:56,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-11-23 12:50:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:50:56,244 INFO L225 Difference]: With dead ends: 547 [2018-11-23 12:50:56,244 INFO L226 Difference]: Without dead ends: 338 [2018-11-23 12:50:56,249 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 12:50:56,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-11-23 12:50:56,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2018-11-23 12:50:56,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-11-23 12:50:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 567 transitions. [2018-11-23 12:50:56,301 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 567 transitions. Word has length 118 [2018-11-23 12:50:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:50:56,302 INFO L480 AbstractCegarLoop]: Abstraction has 338 states and 567 transitions. [2018-11-23 12:50:56,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 12:50:56,303 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 567 transitions. [2018-11-23 12:50:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-23 12:50:56,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:50:56,306 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:50:56,307 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:50:56,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:50:56,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1793818301, now seen corresponding path program 1 times [2018-11-23 12:50:56,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:50:56,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:50:56,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:50:56,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:50:56,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:50:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:50:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:50:56,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:50:56,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 12:50:56,414 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:50:56,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 12:50:56,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:50:56,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:50:56,417 INFO L87 Difference]: Start difference. First operand 338 states and 567 transitions. Second operand 5 states. [2018-11-23 12:50:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:50:57,068 INFO L93 Difference]: Finished difference Result 1071 states and 1880 transitions. [2018-11-23 12:50:57,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:50:57,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-11-23 12:50:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:50:57,077 INFO L225 Difference]: With dead ends: 1071 [2018-11-23 12:50:57,078 INFO L226 Difference]: Without dead ends: 739 [2018-11-23 12:50:57,080 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 12:50:57,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2018-11-23 12:50:57,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 729. [2018-11-23 12:50:57,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2018-11-23 12:50:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1159 transitions. [2018-11-23 12:50:57,109 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1159 transitions. Word has length 127 [2018-11-23 12:50:57,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:50:57,109 INFO L480 AbstractCegarLoop]: Abstraction has 729 states and 1159 transitions. [2018-11-23 12:50:57,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 12:50:57,109 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1159 transitions. [2018-11-23 12:50:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-23 12:50:57,112 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:50:57,113 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:50:57,113 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:50:57,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:50:57,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1554407470, now seen corresponding path program 1 times [2018-11-23 12:50:57,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:50:57,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:50:57,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:50:57,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:50:57,116 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:50:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:50:57,209 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:50:57,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:50:57,209 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:50:57,210 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-23 12:50:57,211 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 12:50:57,242 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:50:57,242 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:50:57,764 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:50:57,765 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 3 different actions 3 times. Never widened. Performed 3272 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3272 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-23 12:50:57,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:50:57,775 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:50:58,173 INFO L227 lantSequenceWeakener]: Weakened 149 states. On average, predicates are now at 81.9% of their original sizes. [2018-11-23 12:50:58,173 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:50:58,252 INFO L415 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-11-23 12:50:58,253 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:50:58,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:50:58,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 12:50:58,254 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:50:58,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:50:58,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:50:58,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:50:58,256 INFO L87 Difference]: Start difference. First operand 729 states and 1159 transitions. Second operand 10 states. [2018-11-23 12:51:02,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:51:02,621 INFO L93 Difference]: Finished difference Result 2780 states and 4480 transitions. [2018-11-23 12:51:02,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-23 12:51:02,621 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2018-11-23 12:51:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:51:02,631 INFO L225 Difference]: With dead ends: 2780 [2018-11-23 12:51:02,631 INFO L226 Difference]: Without dead ends: 2057 [2018-11-23 12:51:02,634 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:51:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2018-11-23 12:51:02,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 2032. [2018-11-23 12:51:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2032 states. [2018-11-23 12:51:02,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 2612 transitions. [2018-11-23 12:51:02,689 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 2612 transitions. Word has length 152 [2018-11-23 12:51:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:51:02,690 INFO L480 AbstractCegarLoop]: Abstraction has 2032 states and 2612 transitions. [2018-11-23 12:51:02,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:51:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 2612 transitions. [2018-11-23 12:51:02,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-23 12:51:02,696 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:51:02,696 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:51:02,696 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:51:02,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:02,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1297232913, now seen corresponding path program 1 times [2018-11-23 12:51:02,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:51:02,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:02,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:02,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:02,698 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:51:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 47 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:51:02,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:02,809 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:51:02,810 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-11-23 12:51:02,810 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 12:51:02,813 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:51:02,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:51:03,012 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:51:03,012 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 times. Merged at 4 different actions 4 times. Never widened. Performed 3160 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3160 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-23 12:51:03,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:03,014 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:51:03,140 INFO L227 lantSequenceWeakener]: Weakened 161 states. On average, predicates are now at 81.86% of their original sizes. [2018-11-23 12:51:03,140 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:51:03,189 INFO L415 sIntCurrentIteration]: We unified 163 AI predicates to 163 [2018-11-23 12:51:03,189 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:51:03,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:51:03,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 12:51:03,190 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:51:03,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:51:03,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:51:03,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:51:03,191 INFO L87 Difference]: Start difference. First operand 2032 states and 2612 transitions. Second operand 10 states. [2018-11-23 12:51:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:51:05,695 INFO L93 Difference]: Finished difference Result 4062 states and 5290 transitions. [2018-11-23 12:51:05,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 12:51:05,696 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2018-11-23 12:51:05,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:51:05,703 INFO L225 Difference]: With dead ends: 4062 [2018-11-23 12:51:05,703 INFO L226 Difference]: Without dead ends: 2171 [2018-11-23 12:51:05,706 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 12:51:05,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2018-11-23 12:51:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 2169. [2018-11-23 12:51:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2169 states. [2018-11-23 12:51:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2765 transitions. [2018-11-23 12:51:05,736 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2765 transitions. Word has length 164 [2018-11-23 12:51:05,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:51:05,736 INFO L480 AbstractCegarLoop]: Abstraction has 2169 states and 2765 transitions. [2018-11-23 12:51:05,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:51:05,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2765 transitions. [2018-11-23 12:51:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-11-23 12:51:05,740 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:51:05,740 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:51:05,740 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:51:05,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:05,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1422492266, now seen corresponding path program 1 times [2018-11-23 12:51:05,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:51:05,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:05,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:05,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:05,741 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:51:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 59 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-23 12:51:05,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:05,805 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:51:05,806 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2018-11-23 12:51:05,807 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 12:51:05,809 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:51:05,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:51:05,981 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:51:05,981 INFO L272 AbstractInterpreter]: Visited 124 different actions 370 times. Merged at 6 different actions 18 times. Never widened. Performed 5067 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5067 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-23 12:51:05,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:05,990 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:51:06,130 INFO L227 lantSequenceWeakener]: Weakened 172 states. On average, predicates are now at 83.34% of their original sizes. [2018-11-23 12:51:06,130 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:51:06,199 INFO L415 sIntCurrentIteration]: We unified 174 AI predicates to 174 [2018-11-23 12:51:06,199 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:51:06,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:51:06,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-23 12:51:06,199 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:51:06,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:51:06,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:51:06,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:51:06,200 INFO L87 Difference]: Start difference. First operand 2169 states and 2765 transitions. Second operand 10 states. [2018-11-23 12:51:09,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:51:09,585 INFO L93 Difference]: Finished difference Result 5518 states and 7403 transitions. [2018-11-23 12:51:09,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 12:51:09,586 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2018-11-23 12:51:09,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:51:09,596 INFO L225 Difference]: With dead ends: 5518 [2018-11-23 12:51:09,597 INFO L226 Difference]: Without dead ends: 3627 [2018-11-23 12:51:09,603 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-23 12:51:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2018-11-23 12:51:09,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3581. [2018-11-23 12:51:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3581 states. [2018-11-23 12:51:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 4495 transitions. [2018-11-23 12:51:09,676 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 4495 transitions. Word has length 175 [2018-11-23 12:51:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:51:09,676 INFO L480 AbstractCegarLoop]: Abstraction has 3581 states and 4495 transitions. [2018-11-23 12:51:09,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:51:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 4495 transitions. [2018-11-23 12:51:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-11-23 12:51:09,683 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:51:09,684 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:51:09,684 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:51:09,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:09,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1663320301, now seen corresponding path program 1 times [2018-11-23 12:51:09,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:51:09,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:09,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:09,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:09,685 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:51:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 87 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-23 12:51:09,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:09,816 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:51:09,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-11-23 12:51:09,817 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 12:51:09,819 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:51:09,820 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:51:09,935 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:51:09,935 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 times. Merged at 4 different actions 4 times. Never widened. Performed 3219 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3219 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-23 12:51:09,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:09,939 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:51:10,086 INFO L227 lantSequenceWeakener]: Weakened 194 states. On average, predicates are now at 81.81% of their original sizes. [2018-11-23 12:51:10,086 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:51:10,124 INFO L415 sIntCurrentIteration]: We unified 196 AI predicates to 196 [2018-11-23 12:51:10,125 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:51:10,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:51:10,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 12:51:10,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:51:10,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:51:10,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:51:10,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:51:10,126 INFO L87 Difference]: Start difference. First operand 3581 states and 4495 transitions. Second operand 10 states. [2018-11-23 12:51:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:51:12,829 INFO L93 Difference]: Finished difference Result 7341 states and 9353 transitions. [2018-11-23 12:51:12,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 12:51:12,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2018-11-23 12:51:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:51:12,836 INFO L225 Difference]: With dead ends: 7341 [2018-11-23 12:51:12,836 INFO L226 Difference]: Without dead ends: 4038 [2018-11-23 12:51:12,841 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 205 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:51:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2018-11-23 12:51:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 4036. [2018-11-23 12:51:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4036 states. [2018-11-23 12:51:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5004 transitions. [2018-11-23 12:51:12,889 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5004 transitions. Word has length 197 [2018-11-23 12:51:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:51:12,889 INFO L480 AbstractCegarLoop]: Abstraction has 4036 states and 5004 transitions. [2018-11-23 12:51:12,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:51:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5004 transitions. [2018-11-23 12:51:12,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-11-23 12:51:12,895 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:51:12,895 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:51:12,896 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:51:12,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:12,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1960342808, now seen corresponding path program 1 times [2018-11-23 12:51:12,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:51:12,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:12,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:12,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:12,897 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:51:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:13,002 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 84 proven. 43 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-23 12:51:13,002 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:13,002 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:51:13,002 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-11-23 12:51:13,003 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 12:51:13,005 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:51:13,006 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:51:13,418 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:51:13,418 INFO L272 AbstractInterpreter]: Visited 125 different actions 497 times. Merged at 8 different actions 30 times. Never widened. Performed 6999 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6999 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-23 12:51:13,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:13,423 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:51:13,423 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:13,424 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:51:13,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:13,431 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:51:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:13,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:51:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-11-23 12:51:13,592 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:51:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 89 proven. 36 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-23 12:51:13,718 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:51:13,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-23 12:51:13,718 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:51:13,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 12:51:13,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 12:51:13,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-23 12:51:13,719 INFO L87 Difference]: Start difference. First operand 4036 states and 5004 transitions. Second operand 11 states. [2018-11-23 12:51:15,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:51:15,095 INFO L93 Difference]: Finished difference Result 9998 states and 13550 transitions. [2018-11-23 12:51:15,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 12:51:15,096 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2018-11-23 12:51:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:51:15,115 INFO L225 Difference]: With dead ends: 9998 [2018-11-23 12:51:15,115 INFO L226 Difference]: Without dead ends: 6558 [2018-11-23 12:51:15,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 413 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:51:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6558 states. [2018-11-23 12:51:15,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6558 to 6165. [2018-11-23 12:51:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6165 states. [2018-11-23 12:51:15,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6165 states to 6165 states and 7896 transitions. [2018-11-23 12:51:15,241 INFO L78 Accepts]: Start accepts. Automaton has 6165 states and 7896 transitions. Word has length 205 [2018-11-23 12:51:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:51:15,241 INFO L480 AbstractCegarLoop]: Abstraction has 6165 states and 7896 transitions. [2018-11-23 12:51:15,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 12:51:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 6165 states and 7896 transitions. [2018-11-23 12:51:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-23 12:51:15,255 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:51:15,256 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:51:15,256 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:51:15,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:15,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1649002264, now seen corresponding path program 1 times [2018-11-23 12:51:15,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:51:15,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:15,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:15,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:15,257 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:51:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-23 12:51:15,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:15,411 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:51:15,411 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-11-23 12:51:15,412 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 12:51:15,414 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:51:15,414 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:51:15,584 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:51:15,584 INFO L272 AbstractInterpreter]: Visited 124 different actions 364 times. Merged at 6 different actions 12 times. Never widened. Performed 4816 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4816 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-23 12:51:15,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:15,586 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:51:15,747 INFO L227 lantSequenceWeakener]: Weakened 211 states. On average, predicates are now at 83.54% of their original sizes. [2018-11-23 12:51:15,747 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:51:15,791 INFO L415 sIntCurrentIteration]: We unified 213 AI predicates to 213 [2018-11-23 12:51:15,791 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:51:15,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:51:15,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-11-23 12:51:15,791 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:51:15,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 12:51:15,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 12:51:15,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 12:51:15,792 INFO L87 Difference]: Start difference. First operand 6165 states and 7896 transitions. Second operand 9 states. [2018-11-23 12:51:17,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:51:17,107 INFO L93 Difference]: Finished difference Result 12291 states and 15909 transitions. [2018-11-23 12:51:17,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 12:51:17,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 214 [2018-11-23 12:51:17,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:51:17,120 INFO L225 Difference]: With dead ends: 12291 [2018-11-23 12:51:17,120 INFO L226 Difference]: Without dead ends: 6859 [2018-11-23 12:51:17,128 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-11-23 12:51:17,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2018-11-23 12:51:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6719. [2018-11-23 12:51:17,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6719 states. [2018-11-23 12:51:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6719 states to 6719 states and 8542 transitions. [2018-11-23 12:51:17,204 INFO L78 Accepts]: Start accepts. Automaton has 6719 states and 8542 transitions. Word has length 214 [2018-11-23 12:51:17,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:51:17,204 INFO L480 AbstractCegarLoop]: Abstraction has 6719 states and 8542 transitions. [2018-11-23 12:51:17,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 12:51:17,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6719 states and 8542 transitions. [2018-11-23 12:51:17,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-23 12:51:17,212 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:51:17,212 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:51:17,213 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:51:17,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:17,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1550773553, now seen corresponding path program 1 times [2018-11-23 12:51:17,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:51:17,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:17,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:17,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:17,214 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:51:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 110 proven. 20 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-23 12:51:17,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:17,280 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:51:17,280 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-23 12:51:17,281 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-23 12:51:17,282 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:51:17,283 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:51:17,630 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:51:17,630 INFO L272 AbstractInterpreter]: Visited 126 different actions 630 times. Merged at 9 different actions 43 times. Never widened. Performed 9020 root evaluator evaluations with a maximum evaluation depth of 3. Performed 9020 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 13 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-23 12:51:17,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:17,638 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:51:17,638 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:51:17,638 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:51:17,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:17,651 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:51:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:51:17,715 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:51:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-11-23 12:51:17,770 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:51:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 110 proven. 20 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-23 12:51:17,854 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:51:17,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-23 12:51:17,855 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:51:17,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 12:51:17,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 12:51:17,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 12:51:17,855 INFO L87 Difference]: Start difference. First operand 6719 states and 8542 transitions. Second operand 8 states. [2018-11-23 12:51:19,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:51:19,654 INFO L93 Difference]: Finished difference Result 22944 states and 31033 transitions. [2018-11-23 12:51:19,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 12:51:19,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2018-11-23 12:51:19,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:51:19,655 INFO L225 Difference]: With dead ends: 22944 [2018-11-23 12:51:19,655 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:51:19,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-11-23 12:51:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:51:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:51:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:51:19,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:51:19,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2018-11-23 12:51:19,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:51:19,700 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:51:19,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 12:51:19,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:51:19,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:51:19,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:51:20,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:51:20,157 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 96 [2018-11-23 12:51:21,575 WARN L180 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 347 DAG size of output: 97 [2018-11-23 12:51:21,714 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 49 [2018-11-23 12:51:21,979 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 46 [2018-11-23 12:51:21,981 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:51:21,981 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0)) [2018-11-23 12:51:21,981 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:51:21,981 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-23 12:51:21,981 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-23 12:51:21,981 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-23 12:51:21,982 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-23 12:51:21,983 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-23 12:51:21,984 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-23 12:51:21,985 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-23 12:51:21,986 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-23 12:51:21,986 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-23 12:51:21,986 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,986 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,986 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,987 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,987 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,987 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-23 12:51:21,987 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-23 12:51:21,987 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-23 12:51:21,987 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-23 12:51:21,988 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-23 12:51:21,989 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 512) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-23 12:51:21,990 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse22 (= 1 |old(~a20~0)|))) (let ((.cse7 (not (= 1 |old(~a21~0)|))) (.cse8 (not .cse22)) (.cse12 (not (= 1 |old(~a7~0)|))) (.cse25 (= 13 |old(~a8~0)|))) (let ((.cse16 (not (= ~a16~0 0))) (.cse3 (= ~a17~0 1)) (.cse2 (= ~a21~0 1)) (.cse9 (not (= 15 |old(~a8~0)|))) (.cse26 (not (= 5 |old(~a16~0)|))) (.cse23 (or .cse7 .cse8 (not (= 4 |old(~a16~0)|)) .cse12 (not .cse25))) (.cse17 (= ~a7~0 |old(~a7~0)|)) (.cse13 (= |old(~a8~0)| ~a8~0)) (.cse14 (= |old(~a20~0)| ~a20~0))) (let ((.cse1 (= ~a16~0 6)) (.cse11 (< |old(~a20~0)| 1)) (.cse15 (and .cse17 .cse13 .cse14)) (.cse6 (not (= 0 |old(~a7~0)|))) (.cse4 (= ~a16~0 5)) (.cse21 (and (or .cse7 .cse9 .cse26) .cse23)) (.cse0 (= 6 |old(~a16~0)|)) (.cse24 (and .cse16 .cse3 .cse2)) (.cse18 (= 0 |old(~a16~0)|)) (.cse10 (not (= 8 ~a12~0))) (.cse5 (= |calculate_output_#in~input| 0)) (.cse19 (= 0 |old(~a8~0)|)) (.cse20 (not (= 1 |old(~a17~0)|)))) (and (or .cse0 (not .cse1)) (or (and .cse2 (or (and .cse3 .cse4) (and (= ~a17~0 0) .cse1))) .cse5 (or (not .cse0) .cse6 .cse7 .cse8 .cse9 (not (= 0 |old(~a17~0)|)) .cse10)) (or .cse11 .cse12 (and (= 1 ~a7~0) .cse13 .cse14)) (or .cse0 .cse15) (or .cse7 .cse8 (and .cse16 .cse3 .cse2 .cse17 .cse13 (= ~a20~0 1)) .cse18 .cse10 .cse5 .cse19 .cse20) (or .cse21 .cse10 .cse5 .cse22 .cse20 .cse4) (or .cse0 .cse6 .cse7 .cse8 .cse9 .cse18 .cse10 .cse5 (and .cse16 .cse2)) (or (= ~a16~0 4) (or .cse23 .cse10 .cse5 .cse20)) (or .cse7 .cse18 .cse10 .cse11 .cse12 .cse5 .cse19 .cse24 .cse20) (or .cse7 .cse25 .cse18 .cse24 .cse10 .cse5 .cse19 .cse20) (or .cse15 .cse25) (or .cse6 .cse7 .cse9 .cse26 .cse10 .cse5 (and .cse2 .cse4)) (or .cse4 .cse21 .cse10 .cse5 (< |old(~a8~0)| 15) .cse20 .cse12) (or .cse0 .cse7 .cse24 .cse18 .cse10 .cse5 .cse19 .cse20)))))) [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,991 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-23 12:51:21,992 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-23 12:51:21,993 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-23 12:51:21,994 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-23 12:51:21,994 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-23 12:51:21,994 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-23 12:51:21,994 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-23 12:51:21,994 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-23 12:51:21,995 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:51:21,996 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-11-23 12:51:21,996 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:51:21,996 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:51:21,997 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 1 |old(~a17~0)|))) [2018-11-23 12:51:21,997 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-23 12:51:21,997 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (not (= 1 |old(~a21~0)|)) (not (= ~a8~0 13)) (not (= 8 ~a12~0)) (not (= ~a16~0 6)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 0 |old(~a7~0)|)) (and (= 1 ~a7~0) (<= 1 ~a20~0)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (not (= main_~input~0 0)) (= ~a17~0 1) (= ~a21~0 1) (= ~a20~0 1))) [2018-11-23 12:51:21,997 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-23 12:51:21,997 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-23 12:51:21,997 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (not (= 1 |old(~a21~0)|)) (not (= ~a8~0 13)) (not (= 8 ~a12~0)) (not (= ~a16~0 6)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 0 |old(~a7~0)|)) (and (= 1 ~a7~0) (<= 1 ~a20~0)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a17~0 1) (= ~a20~0 1) (= ~a21~0 1))) [2018-11-23 12:51:21,997 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-11-23 12:51:22,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:51:22 BoogieIcfgContainer [2018-11-23 12:51:22,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:51:22,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:51:22,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:51:22,017 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:51:22,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:55" (3/4) ... [2018-11-23 12:51:22,023 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:51:22,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:51:22,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 12:51:22,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:51:22,036 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 12:51:22,037 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 12:51:22,061 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == \old(a21)) || !(a8 == 13)) || !(8 == a12)) || !(a16 == 6)) || !(1 == \old(a20))) || !(5 == \old(a16))) || !(0 == \old(a7))) || (1 == a7 && 1 <= a20)) || !(1 == \old(a17))) || !(15 == \old(a8))) || ((a17 == 1 && a20 == 1) && a21 == 1) [2018-11-23 12:51:22,123 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_08ead70e-3147-4f24-b1c4-59c16aa15150/bin-2019/utaipan/witness.graphml [2018-11-23 12:51:22,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:51:22,124 INFO L168 Benchmark]: Toolchain (without parser) took 28071.54 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.7 GB). Free memory was 951.1 MB in the beginning and 1.7 GB in the end (delta: -701.2 MB). Peak memory consumption was 960.3 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:22,124 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:51:22,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.60 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 913.4 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:22,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 913.4 MB in the beginning and 1.1 GB in the end (delta: -202.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:22,125 INFO L168 Benchmark]: Boogie Preprocessor took 50.80 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:22,125 INFO L168 Benchmark]: RCFGBuilder took 750.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:22,125 INFO L168 Benchmark]: TraceAbstraction took 26710.27 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: -650.8 MB). Peak memory consumption was 1.8 GB. Max. memory is 11.5 GB. [2018-11-23 12:51:22,125 INFO L168 Benchmark]: Witness Printer took 105.76 ms. Allocated memory is still 2.7 GB. Free memory is still 1.7 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:51:22,127 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 367.60 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 913.4 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 913.4 MB in the beginning and 1.1 GB in the end (delta: -202.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.80 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 750.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26710.27 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: -650.8 MB). Peak memory consumption was 1.8 GB. Max. memory is 11.5 GB. * Witness Printer took 105.76 ms. Allocated memory is still 2.7 GB. Free memory is still 1.7 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 512]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a21)) || !(a8 == 13)) || !(8 == a12)) || !(a16 == 6)) || !(1 == \old(a20))) || !(5 == \old(a16))) || !(0 == \old(a7))) || (1 == a7 && 1 <= a20)) || !(1 == \old(a17))) || !(15 == \old(a8))) || ((a17 == 1 && a20 == 1) && a21 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 26.6s OverallTime, 9 OverallIterations, 6 TraceHistogramMax, 18.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 1410 SDtfs, 9615 SDslu, 2472 SDs, 0 SdLazy, 12409 SolverSat, 2629 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1883 GetRequests, 1740 SyntacticMatches, 5 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6719occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 7 AbstIntIterations, 5 AbstIntStrong, 0.9966298155096086 AbsIntWeakeningRatio, 0.23522853957636566 AbsIntAvgWeakeningVarsNumRemoved, 28.318840579710145 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 618 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 272 PreInvPairs, 560 NumberOfFragments, 677 HoareAnnotationTreeSize, 272 FomulaSimplifications, 22243 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11753 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 2007 NumberOfCodeBlocks, 2007 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2424 ConstructedInterpolants, 0 QuantifiedInterpolants, 793928 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1250 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 1418/1589 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...