./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/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 da926431bbc0b86d3a4186d79a03e568e3df4dd8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:25:54,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:25:54,197 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:25:54,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:25:54,205 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:25:54,205 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:25:54,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:25:54,207 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:25:54,208 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:25:54,209 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:25:54,209 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:25:54,209 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:25:54,210 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:25:54,211 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:25:54,211 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:25:54,212 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:25:54,213 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:25:54,214 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:25:54,215 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:25:54,216 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:25:54,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:25:54,217 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:25:54,219 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:25:54,219 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:25:54,219 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:25:54,220 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:25:54,221 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:25:54,221 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:25:54,222 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:25:54,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:25:54,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:25:54,223 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:25:54,223 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:25:54,223 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:25:54,224 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:25:54,225 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:25:54,225 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:25:54,235 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:25:54,235 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:25:54,236 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:25:54,236 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:25:54,236 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:25:54,236 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:25:54,236 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:25:54,236 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:25:54,236 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:25:54,237 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:25:54,237 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:25:54,237 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:25:54,237 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:25:54,237 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:25:54,238 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:25:54,239 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:25:54,239 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:25:54,239 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:25:54,239 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:25:54,239 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:25:54,239 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:25:54,239 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:25:54,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:25:54,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:25:54,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:25:54,240 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:25:54,240 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:25:54,240 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:25:54,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:25:54,240 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:25:54,240 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_07bf455c-963a-4c4c-928b-4bb68286dd87/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 -> da926431bbc0b86d3a4186d79a03e568e3df4dd8 [2018-11-18 13:25:54,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:25:54,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:25:54,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:25:54,273 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:25:54,273 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:25:54,274 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c [2018-11-18 13:25:54,309 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/data/7b5fda8b3/86530e608bf14a74903f1d41747a152f/FLAG2a905a8f4 [2018-11-18 13:25:54,765 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:25:54,765 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/sv-benchmarks/c/eca-rers2012/Problem10_label27_true-unreach-call.c [2018-11-18 13:25:54,775 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/data/7b5fda8b3/86530e608bf14a74903f1d41747a152f/FLAG2a905a8f4 [2018-11-18 13:25:54,786 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/data/7b5fda8b3/86530e608bf14a74903f1d41747a152f [2018-11-18 13:25:54,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:25:54,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:25:54,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:25:54,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:25:54,792 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:25:54,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:25:54" (1/1) ... [2018-11-18 13:25:54,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f427c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:54, skipping insertion in model container [2018-11-18 13:25:54,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:25:54" (1/1) ... [2018-11-18 13:25:54,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:25:54,834 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:25:55,066 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:25:55,069 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:25:55,137 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:25:55,146 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:25:55,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55 WrapperNode [2018-11-18 13:25:55,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:25:55,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:25:55,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:25:55,147 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:25:55,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:25:55,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:25:55,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:25:55,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:25:55,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... [2018-11-18 13:25:55,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:25:55,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:25:55,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:25:55,270 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:25:55,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/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 [2018-11-18 13:25:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 13:25:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:25:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:25:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 13:25:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 13:25:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:25:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:25:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:25:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:25:56,071 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:25:56,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:56 BoogieIcfgContainer [2018-11-18 13:25:56,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:25:56,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:25:56,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:25:56,074 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:25:56,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:25:54" (1/3) ... [2018-11-18 13:25:56,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25585ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:25:56, skipping insertion in model container [2018-11-18 13:25:56,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:55" (2/3) ... [2018-11-18 13:25:56,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25585ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:25:56, skipping insertion in model container [2018-11-18 13:25:56,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:56" (3/3) ... [2018-11-18 13:25:56,076 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label27_true-unreach-call.c [2018-11-18 13:25:56,082 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:25:56,089 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:25:56,098 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:25:56,120 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:25:56,120 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:25:56,120 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:25:56,120 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:25:56,120 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:25:56,120 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:25:56,121 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:25:56,121 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:25:56,137 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-18 13:25:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-18 13:25:56,143 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:25:56,144 INFO L375 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] [2018-11-18 13:25:56,146 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:25:56,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:25:56,150 INFO L82 PathProgramCache]: Analyzing trace with hash 51771233, now seen corresponding path program 1 times [2018-11-18 13:25:56,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:25:56,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:56,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:25:56,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:56,181 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:25:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:25:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:25:56,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:25:56,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:25:56,384 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:25:56,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:25:56,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:25:56,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:25:56,398 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-11-18 13:25:57,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:25:57,245 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-11-18 13:25:57,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:25:57,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-11-18 13:25:57,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:25:57,259 INFO L225 Difference]: With dead ends: 737 [2018-11-18 13:25:57,260 INFO L226 Difference]: Without dead ends: 515 [2018-11-18 13:25:57,264 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:25:57,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-11-18 13:25:57,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 356. [2018-11-18 13:25:57,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-18 13:25:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 613 transitions. [2018-11-18 13:25:57,313 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 613 transitions. Word has length 67 [2018-11-18 13:25:57,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:25:57,313 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 613 transitions. [2018-11-18 13:25:57,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:25:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 613 transitions. [2018-11-18 13:25:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 13:25:57,319 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:25:57,319 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-11-18 13:25:57,321 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:25:57,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:25:57,322 INFO L82 PathProgramCache]: Analyzing trace with hash -316431117, now seen corresponding path program 1 times [2018-11-18 13:25:57,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:25:57,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:57,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:25:57,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:57,323 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:25:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:25:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 13:25:57,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:25:57,478 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:25:57,478 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-18 13:25:57,480 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:25:57,507 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:25:57,508 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:25:57,903 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:25:57,904 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Performed 1947 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1947 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 13:25:57,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:25:57,921 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:25:58,156 INFO L227 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 76.6% of their original sizes. [2018-11-18 13:25:58,156 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:25:58,230 INFO L415 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-11-18 13:25:58,231 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:25:58,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:25:58,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-18 13:25:58,232 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:25:58,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:25:58,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:25:58,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:25:58,234 INFO L87 Difference]: Start difference. First operand 356 states and 613 transitions. Second operand 10 states. [2018-11-18 13:26:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:26,169 INFO L93 Difference]: Finished difference Result 1536 states and 2799 transitions. [2018-11-18 13:26:26,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 13:26:26,169 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 138 [2018-11-18 13:26:26,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:26,173 INFO L225 Difference]: With dead ends: 1536 [2018-11-18 13:26:26,173 INFO L226 Difference]: Without dead ends: 1186 [2018-11-18 13:26:26,175 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-18 13:26:26,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2018-11-18 13:26:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1165. [2018-11-18 13:26:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1165 states. [2018-11-18 13:26:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1590 transitions. [2018-11-18 13:26:26,213 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1590 transitions. Word has length 138 [2018-11-18 13:26:26,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:26,214 INFO L480 AbstractCegarLoop]: Abstraction has 1165 states and 1590 transitions. [2018-11-18 13:26:26,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:26:26,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1590 transitions. [2018-11-18 13:26:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-18 13:26:26,219 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:26:26,220 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:26:26,220 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:26:26,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:26,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1449875099, now seen corresponding path program 1 times [2018-11-18 13:26:26,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:26:26,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:26,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:26,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:26,222 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:26:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 121 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-18 13:26:26,396 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:26:26,397 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:26:26,397 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-11-18 13:26:26,397 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:26:26,401 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:26:26,401 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:26:26,495 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:26:26,495 INFO L272 AbstractInterpreter]: Visited 91 different actions 264 times. Merged at 7 different actions 14 times. Never widened. Performed 2498 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2498 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:26:26,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:26,497 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:26:26,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:26:26,497 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/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 [2018-11-18 13:26:26,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:26,504 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:26:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:26,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:26:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:26:26,647 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:26:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:26:26,858 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:26:26,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-11-18 13:26:26,859 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:26:26,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:26:26,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:26:26,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:26:26,861 INFO L87 Difference]: Start difference. First operand 1165 states and 1590 transitions. Second operand 11 states. [2018-11-18 13:26:28,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:28,728 INFO L93 Difference]: Finished difference Result 3653 states and 5586 transitions. [2018-11-18 13:26:28,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 13:26:28,728 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2018-11-18 13:26:28,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:28,736 INFO L225 Difference]: With dead ends: 3653 [2018-11-18 13:26:28,737 INFO L226 Difference]: Without dead ends: 2292 [2018-11-18 13:26:28,743 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 462 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-11-18 13:26:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2018-11-18 13:26:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2018-11-18 13:26:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2292 states. [2018-11-18 13:26:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 2759 transitions. [2018-11-18 13:26:28,798 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 2759 transitions. Word has length 229 [2018-11-18 13:26:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:28,799 INFO L480 AbstractCegarLoop]: Abstraction has 2292 states and 2759 transitions. [2018-11-18 13:26:28,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:26:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 2759 transitions. [2018-11-18 13:26:28,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-11-18 13:26:28,804 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:26:28,804 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-11-18 13:26:28,804 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:26:28,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:28,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1403858525, now seen corresponding path program 1 times [2018-11-18 13:26:28,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:26:28,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:28,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:28,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:28,806 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:26:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 61 proven. 137 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 13:26:29,032 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:26:29,032 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:26:29,032 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-11-18 13:26:29,033 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:26:29,036 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:26:29,036 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:26:29,204 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:26:29,204 INFO L272 AbstractInterpreter]: Visited 125 different actions 365 times. Merged at 7 different actions 14 times. Never widened. Performed 3782 root evaluator evaluations with a maximum evaluation depth of 13. Performed 3782 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:26:29,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:29,214 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:26:29,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:26:29,214 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/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 [2018-11-18 13:26:29,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:29,222 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:26:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:29,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:26:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-18 13:26:29,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:26:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-18 13:26:29,370 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:26:29,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-11-18 13:26:29,371 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:26:29,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:26:29,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:26:29,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:26:29,372 INFO L87 Difference]: Start difference. First operand 2292 states and 2759 transitions. Second operand 3 states. [2018-11-18 13:26:29,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:29,660 INFO L93 Difference]: Finished difference Result 5310 states and 6455 transitions. [2018-11-18 13:26:29,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:26:29,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 265 [2018-11-18 13:26:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:29,670 INFO L225 Difference]: With dead ends: 5310 [2018-11-18 13:26:29,670 INFO L226 Difference]: Without dead ends: 2875 [2018-11-18 13:26:29,675 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 530 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:26:29,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2018-11-18 13:26:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2727. [2018-11-18 13:26:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2727 states. [2018-11-18 13:26:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 3214 transitions. [2018-11-18 13:26:29,734 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 3214 transitions. Word has length 265 [2018-11-18 13:26:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:29,735 INFO L480 AbstractCegarLoop]: Abstraction has 2727 states and 3214 transitions. [2018-11-18 13:26:29,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:26:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 3214 transitions. [2018-11-18 13:26:29,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-11-18 13:26:29,740 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:26:29,740 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-11-18 13:26:29,740 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:26:29,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1743147136, now seen corresponding path program 1 times [2018-11-18 13:26:29,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:26:29,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:29,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:29,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:29,741 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:26:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 160 proven. 58 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:26:29,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:26:29,892 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:26:29,893 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-11-18 13:26:29,893 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:26:29,896 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:26:29,896 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:26:30,023 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:26:30,024 INFO L272 AbstractInterpreter]: Visited 125 different actions 365 times. Merged at 7 different actions 14 times. Never widened. Performed 3794 root evaluator evaluations with a maximum evaluation depth of 13. Performed 3794 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:26:30,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:30,026 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:26:30,026 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:26:30,026 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:26:30,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:30,033 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:26:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:30,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:26:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-18 13:26:30,140 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:26:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-18 13:26:30,237 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:26:30,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-11-18 13:26:30,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:26:30,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:26:30,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:26:30,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:26:30,238 INFO L87 Difference]: Start difference. First operand 2727 states and 3214 transitions. Second operand 3 states. [2018-11-18 13:26:30,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:30,595 INFO L93 Difference]: Finished difference Result 5880 states and 7015 transitions. [2018-11-18 13:26:30,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:26:30,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2018-11-18 13:26:30,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:30,602 INFO L225 Difference]: With dead ends: 5880 [2018-11-18 13:26:30,602 INFO L226 Difference]: Without dead ends: 3012 [2018-11-18 13:26:30,606 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 572 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:26:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2018-11-18 13:26:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2864. [2018-11-18 13:26:30,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2864 states. [2018-11-18 13:26:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 3351 transitions. [2018-11-18 13:26:30,645 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 3351 transitions. Word has length 286 [2018-11-18 13:26:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:30,646 INFO L480 AbstractCegarLoop]: Abstraction has 2864 states and 3351 transitions. [2018-11-18 13:26:30,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:26:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 3351 transitions. [2018-11-18 13:26:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-11-18 13:26:30,650 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:26:30,650 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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] [2018-11-18 13:26:30,651 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:26:30,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:30,651 INFO L82 PathProgramCache]: Analyzing trace with hash -959408988, now seen corresponding path program 1 times [2018-11-18 13:26:30,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:26:30,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:30,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:30,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:26:30,652 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:26:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-18 13:26:30,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:26:30,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:26:30,756 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:26:30,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:26:30,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:26:30,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:26:30,756 INFO L87 Difference]: Start difference. First operand 2864 states and 3351 transitions. Second operand 4 states. [2018-11-18 13:26:31,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:31,063 INFO L93 Difference]: Finished difference Result 3011 states and 3505 transitions. [2018-11-18 13:26:31,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:26:31,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2018-11-18 13:26:31,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:31,064 INFO L225 Difference]: With dead ends: 3011 [2018-11-18 13:26:31,064 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:26:31,067 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:26:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:26:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:26:31,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:26:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:26:31,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 320 [2018-11-18 13:26:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:31,068 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:26:31,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:26:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:26:31,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:26:31,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:26:31,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:26:31,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:26:31,545 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 72 [2018-11-18 13:26:31,666 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~a19~0)| ~a19~0) [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-18 13:26:31,667 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-18 13:26:31,668 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,669 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-18 13:26:31,670 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-18 13:26:31,671 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-18 13:26:31,672 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 13:26:31,673 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,674 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-18 13:26:31,675 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 13:26:31,676 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse8 (= 9 |old(~a19~0)|))) (let ((.cse1 (<= (+ |old(~a1~0)| 13) 0)) (.cse2 (< 0 (+ ~a1~0 13))) (.cse0 (< 1 |old(~a10~0)|)) (.cse4 (= |old(~a19~0)| ~a19~0)) (.cse9 (< 8 |old(~a19~0)|)) (.cse5 (not (= 14 ~a4~0))) (.cse6 (not (= 0 ~a12~0))) (.cse3 (not .cse8)) (.cse7 (= |calculate_output_#in~input| 0))) (and (or (<= ~a10~0 1) .cse0) (or .cse1 .cse2 .cse3) (or .cse4 .cse0) (or (= (mod ~a10~0 2) 0) .cse5 .cse6 (not (= 0 (mod |old(~a10~0)| 2))) .cse3 .cse7) (or (<= ~a10~0 0) (or .cse8 (< 0 |old(~a10~0)|))) (or .cse1 .cse9 (and .cse4 .cse2)) (or .cse1 .cse2 .cse0) (or .cse4 .cse3) (or .cse4 (= 7 |old(~a19~0)|) .cse9) (or (or (= ~a10~0 2) (and (= ~a10~0 0) (= ~a1~0 23))) (and (or .cse5 .cse6 (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) (or .cse5 .cse6 (not (= 2 |old(~a10~0)|)))) .cse3 .cse7)))) [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-18 13:26:31,677 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-18 13:26:31,678 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 13:26:31,679 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-18 13:26:31,680 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:26:31,681 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-11-18 13:26:31,681 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:26:31,681 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:26:31,682 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|)) (and (= ~a19~0 9) (= ~a10~0 0) (= ~a1~0 23))) [2018-11-18 13:26:31,682 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-18 13:26:31,682 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (and (not (= 7 ~a19~0)) .cse0) (and (< 0 (+ ~a1~0 13)) .cse0) (= |old(~a19~0)| ~a19~0) (<= ~a10~0 1) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)))) [2018-11-18 13:26:31,682 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-18 13:26:31,682 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-18 13:26:31,682 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-18 13:26:31,682 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (and (not (= 7 ~a19~0)) .cse0) (and (< 0 (+ ~a1~0 13)) .cse0) (= |old(~a19~0)| ~a19~0) (<= ~a10~0 1) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)))) [2018-11-18 13:26:31,682 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-18 13:26:31,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:26:31 BoogieIcfgContainer [2018-11-18 13:26:31,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:26:31,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:26:31,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:26:31,693 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:26:31,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:56" (3/4) ... [2018-11-18 13:26:31,696 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:26:31,701 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:26:31,701 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 13:26:31,702 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:26:31,710 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 13:26:31,711 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:26:31,735 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(14 == a4) || !(23 == \old(a1))) || (!(7 == a19) && a19 <= 8)) || (0 < a1 + 13 && a19 <= 8)) || \old(a19) == a19) || a10 <= 1) || !(0 == a12)) || !(9 == \old(a19))) || !(0 == \old(a10)) [2018-11-18 13:26:31,806 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_07bf455c-963a-4c4c-928b-4bb68286dd87/bin-2019/utaipan/witness.graphml [2018-11-18 13:26:31,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:26:31,806 INFO L168 Benchmark]: Toolchain (without parser) took 37017.94 ms. Allocated memory was 1.0 GB in the beginning and 4.6 GB in the end (delta: 3.6 GB). Free memory was 951.2 MB in the beginning and 1.9 GB in the end (delta: -987.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. [2018-11-18 13:26:31,807 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:26:31,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.26 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 921.7 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:31,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 919.0 MB in the beginning and 1.1 GB in the end (delta: -214.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:31,809 INFO L168 Benchmark]: Boogie Preprocessor took 50.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:31,809 INFO L168 Benchmark]: RCFGBuilder took 802.12 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: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:31,810 INFO L168 Benchmark]: TraceAbstraction took 35620.09 ms. Allocated memory was 1.2 GB in the beginning and 4.6 GB in the end (delta: 3.5 GB). Free memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: -912.8 MB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. [2018-11-18 13:26:31,810 INFO L168 Benchmark]: Witness Printer took 113.47 ms. Allocated memory is still 4.6 GB. Free memory is still 1.9 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:26:31,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.26 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 921.7 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 919.0 MB in the beginning and 1.1 GB in the end (delta: -214.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 802.12 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: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 35620.09 ms. Allocated memory was 1.2 GB in the beginning and 4.6 GB in the end (delta: 3.5 GB). Free memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: -912.8 MB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. * Witness Printer took 113.47 ms. Allocated memory is still 4.6 GB. Free memory is still 1.9 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 184]: 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: 582]: Loop Invariant Derived loop invariant: (((((((!(14 == a4) || !(23 == \old(a1))) || (!(7 == a19) && a19 <= 8)) || (0 < a1 + 13 && a19 <= 8)) || \old(a19) == a19) || a10 <= 1) || !(0 == a12)) || !(9 == \old(a19))) || !(0 == \old(a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 35.5s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 31.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 600 SDtfs, 3339 SDslu, 957 SDs, 0 SdLazy, 6812 SolverSat, 1530 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1767 GetRequests, 1700 SyntacticMatches, 10 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2864occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.8s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9964636208969669 AbsIntWeakeningRatio, 0.145985401459854 AbsIntAvgWeakeningVarsNumRemoved, 14.335766423357665 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 476 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 73 PreInvPairs, 125 NumberOfFragments, 316 HoareAnnotationTreeSize, 73 FomulaSimplifications, 1378 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1937 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2085 NumberOfCodeBlocks, 2085 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2853 ConstructedInterpolants, 0 QuantifiedInterpolants, 1606974 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1305 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 1910/2171 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...