./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/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 5e9f687b42339afcb86609638d702908304a6728 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:49:07,140 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:49:07,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:49:07,150 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:49:07,150 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:49:07,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:49:07,152 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:49:07,153 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:49:07,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:49:07,155 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:49:07,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:49:07,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:49:07,156 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:49:07,157 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:49:07,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:49:07,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:49:07,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:49:07,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:49:07,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:49:07,162 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:49:07,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:49:07,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:49:07,166 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:49:07,166 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:49:07,166 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:49:07,167 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:49:07,167 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:49:07,168 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:49:07,168 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:49:07,169 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:49:07,169 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:49:07,170 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:49:07,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:49:07,170 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:49:07,171 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:49:07,171 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:49:07,172 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 13:49:07,181 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:49:07,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:49:07,182 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:49:07,182 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:49:07,182 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:49:07,183 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:49:07,183 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:49:07,183 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:49:07,183 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:49:07,183 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:49:07,183 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:49:07,183 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:49:07,183 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:49:07,184 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:49:07,184 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:49:07,184 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:49:07,184 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:49:07,184 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:49:07,185 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:49:07,185 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:49:07,185 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:49:07,185 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:49:07,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:49:07,185 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:49:07,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:49:07,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:49:07,186 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:49:07,186 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:49:07,186 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:49:07,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:49:07,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:49:07,186 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:49:07,186 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:49:07,187 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:49:07,187 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:49:07,187 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:49:07,187 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:49:07,187 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_b3555c96-3585-4725-bfe7-ae9c49217345/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 -> 5e9f687b42339afcb86609638d702908304a6728 [2018-11-23 13:49:07,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:49:07,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:49:07,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:49:07,222 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:49:07,222 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:49:07,222 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c [2018-11-23 13:49:07,265 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/data/25e000a2f/e8e51226436d487c8ce24fd2c2e43ad0/FLAGb0df81dad [2018-11-23 13:49:07,649 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:49:07,650 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c [2018-11-23 13:49:07,659 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/data/25e000a2f/e8e51226436d487c8ce24fd2c2e43ad0/FLAGb0df81dad [2018-11-23 13:49:07,669 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/data/25e000a2f/e8e51226436d487c8ce24fd2c2e43ad0 [2018-11-23 13:49:07,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:49:07,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:49:07,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:49:07,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:49:07,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:49:07,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:07" (1/1) ... [2018-11-23 13:49:07,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb4fcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:07, skipping insertion in model container [2018-11-23 13:49:07,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:07" (1/1) ... [2018-11-23 13:49:07,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:49:07,718 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:49:07,954 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:49:07,958 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:49:08,030 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:49:08,043 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:49:08,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08 WrapperNode [2018-11-23 13:49:08,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:49:08,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:49:08,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:49:08,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:49:08,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:49:08,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:49:08,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:49:08,122 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:49:08,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... [2018-11-23 13:49:08,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:49:08,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:49:08,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:49:08,172 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:49:08,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:49:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 13:49:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:49:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:49:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 13:49:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 13:49:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:49:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:49:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:49:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:49:09,150 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:49:09,150 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 13:49:09,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:09 BoogieIcfgContainer [2018-11-23 13:49:09,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:49:09,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:49:09,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:49:09,153 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:49:09,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:49:07" (1/3) ... [2018-11-23 13:49:09,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732723e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:09, skipping insertion in model container [2018-11-23 13:49:09,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:08" (2/3) ... [2018-11-23 13:49:09,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732723e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:09, skipping insertion in model container [2018-11-23 13:49:09,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:09" (3/3) ... [2018-11-23 13:49:09,155 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label30_true-unreach-call.c [2018-11-23 13:49:09,162 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:49:09,170 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:49:09,180 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:49:09,205 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:49:09,205 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:49:09,206 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:49:09,206 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:49:09,206 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:49:09,206 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:49:09,206 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:49:09,206 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:49:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-11-23 13:49:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 13:49:09,230 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:49:09,231 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:49:09,233 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:49:09,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134543, now seen corresponding path program 1 times [2018-11-23 13:49:09,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:49:09,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:09,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:09,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:09,273 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:49:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:49:09,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:49:09,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:49:09,449 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:49:09,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:49:09,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:49:09,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:49:09,465 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2018-11-23 13:49:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:49:10,127 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2018-11-23 13:49:10,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:49:10,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-11-23 13:49:10,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:49:10,143 INFO L225 Difference]: With dead ends: 571 [2018-11-23 13:49:10,144 INFO L226 Difference]: Without dead ends: 354 [2018-11-23 13:49:10,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:49:10,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-11-23 13:49:10,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2018-11-23 13:49:10,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2018-11-23 13:49:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 607 transitions. [2018-11-23 13:49:10,219 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 607 transitions. Word has length 40 [2018-11-23 13:49:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:49:10,220 INFO L480 AbstractCegarLoop]: Abstraction has 354 states and 607 transitions. [2018-11-23 13:49:10,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:49:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 607 transitions. [2018-11-23 13:49:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-23 13:49:10,227 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:49:10,228 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:49:10,228 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:49:10,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:10,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1223819674, now seen corresponding path program 1 times [2018-11-23 13:49:10,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:49:10,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:10,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:10,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:10,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:49:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:10,376 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:49:10,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:49:10,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:49:10,377 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:49:10,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:49:10,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:49:10,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:49:10,379 INFO L87 Difference]: Start difference. First operand 354 states and 607 transitions. Second operand 5 states. [2018-11-23 13:49:11,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:49:11,265 INFO L93 Difference]: Finished difference Result 1282 states and 2308 transitions. [2018-11-23 13:49:11,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 13:49:11,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-11-23 13:49:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:49:11,276 INFO L225 Difference]: With dead ends: 1282 [2018-11-23 13:49:11,276 INFO L226 Difference]: Without dead ends: 934 [2018-11-23 13:49:11,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:49:11,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2018-11-23 13:49:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 922. [2018-11-23 13:49:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2018-11-23 13:49:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1440 transitions. [2018-11-23 13:49:11,315 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1440 transitions. Word has length 122 [2018-11-23 13:49:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:49:11,316 INFO L480 AbstractCegarLoop]: Abstraction has 922 states and 1440 transitions. [2018-11-23 13:49:11,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:49:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1440 transitions. [2018-11-23 13:49:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-23 13:49:11,319 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:49:11,319 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:49:11,320 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:49:11,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:11,320 INFO L82 PathProgramCache]: Analyzing trace with hash 865845370, now seen corresponding path program 1 times [2018-11-23 13:49:11,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:49:11,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:11,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:11,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:11,321 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:49:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:49:11,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:49:11,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 13:49:11,457 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:49:11,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:49:11,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:49:11,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:49:11,458 INFO L87 Difference]: Start difference. First operand 922 states and 1440 transitions. Second operand 6 states. [2018-11-23 13:49:12,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:49:12,404 INFO L93 Difference]: Finished difference Result 2525 states and 4079 transitions. [2018-11-23 13:49:12,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:49:12,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-11-23 13:49:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:49:12,413 INFO L225 Difference]: With dead ends: 2525 [2018-11-23 13:49:12,413 INFO L226 Difference]: Without dead ends: 1609 [2018-11-23 13:49:12,418 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:49:12,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2018-11-23 13:49:12,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1580. [2018-11-23 13:49:12,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1580 states. [2018-11-23 13:49:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2315 transitions. [2018-11-23 13:49:12,458 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2315 transitions. Word has length 138 [2018-11-23 13:49:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:49:12,459 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 2315 transitions. [2018-11-23 13:49:12,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:49:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2315 transitions. [2018-11-23 13:49:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-23 13:49:12,463 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:49:12,463 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:49:12,463 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:49:12,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:12,463 INFO L82 PathProgramCache]: Analyzing trace with hash 52272842, now seen corresponding path program 1 times [2018-11-23 13:49:12,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:49:12,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:12,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:12,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:12,464 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:49:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:49:12,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:49:12,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 13:49:12,631 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:49:12,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:49:12,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:49:12,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:49:12,632 INFO L87 Difference]: Start difference. First operand 1580 states and 2315 transitions. Second operand 6 states. [2018-11-23 13:49:13,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:49:13,308 INFO L93 Difference]: Finished difference Result 3490 states and 5298 transitions. [2018-11-23 13:49:13,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:49:13,310 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-11-23 13:49:13,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:49:13,317 INFO L225 Difference]: With dead ends: 3490 [2018-11-23 13:49:13,317 INFO L226 Difference]: Without dead ends: 1916 [2018-11-23 13:49:13,321 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:49:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2018-11-23 13:49:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1881. [2018-11-23 13:49:13,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1881 states. [2018-11-23 13:49:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2667 transitions. [2018-11-23 13:49:13,357 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2667 transitions. Word has length 162 [2018-11-23 13:49:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:49:13,357 INFO L480 AbstractCegarLoop]: Abstraction has 1881 states and 2667 transitions. [2018-11-23 13:49:13,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:49:13,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2667 transitions. [2018-11-23 13:49:13,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-11-23 13:49:13,361 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:49:13,361 INFO L402 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, 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] [2018-11-23 13:49:13,361 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:49:13,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:13,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1574410488, now seen corresponding path program 1 times [2018-11-23 13:49:13,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:49:13,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:13,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:13,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:13,363 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:49:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:49:13,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:49:13,642 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:49:13,642 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-11-23 13:49:13,644 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], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [546], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 13:49:13,673 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:49:13,673 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:49:14,085 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:49:14,086 INFO L272 AbstractInterpreter]: Visited 91 different actions 179 times. Merged at 6 different actions 8 times. Never widened. Performed 1689 root evaluator evaluations with a maximum evaluation depth of 16. Performed 1689 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 13:49:14,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:14,110 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:49:14,110 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:49:14,110 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:49:14,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:14,123 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:49:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:14,173 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:49:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:49:14,251 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:49:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:49:14,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:49:14,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-11-23 13:49:14,361 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:49:14,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 13:49:14,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 13:49:14,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-11-23 13:49:14,362 INFO L87 Difference]: Start difference. First operand 1881 states and 2667 transitions. Second operand 15 states. [2018-11-23 13:49:17,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:49:17,776 INFO L93 Difference]: Finished difference Result 6977 states and 10954 transitions. [2018-11-23 13:49:17,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-23 13:49:17,776 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 201 [2018-11-23 13:49:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:49:17,792 INFO L225 Difference]: With dead ends: 6977 [2018-11-23 13:49:17,792 INFO L226 Difference]: Without dead ends: 4646 [2018-11-23 13:49:17,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 417 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2018-11-23 13:49:17,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4646 states. [2018-11-23 13:49:17,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4646 to 4239. [2018-11-23 13:49:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4239 states. [2018-11-23 13:49:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 5524 transitions. [2018-11-23 13:49:17,885 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 5524 transitions. Word has length 201 [2018-11-23 13:49:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:49:17,886 INFO L480 AbstractCegarLoop]: Abstraction has 4239 states and 5524 transitions. [2018-11-23 13:49:17,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 13:49:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 5524 transitions. [2018-11-23 13:49:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-11-23 13:49:17,891 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:49:17,891 INFO L402 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, 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] [2018-11-23 13:49:17,892 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:49:17,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:17,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1055956540, now seen corresponding path program 1 times [2018-11-23 13:49:17,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:49:17,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:17,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:17,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:17,893 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:49:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 66 proven. 73 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 13:49:18,003 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:49:18,003 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:49:18,004 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-11-23 13:49:18,004 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], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 13:49:18,008 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:49:18,008 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:49:18,188 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:49:18,189 INFO L272 AbstractInterpreter]: Visited 103 different actions 103 times. Never merged. Never widened. Performed 960 root evaluator evaluations with a maximum evaluation depth of 14. Performed 960 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 13:49:18,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:18,201 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:49:18,485 INFO L227 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 73.13% of their original sizes. [2018-11-23 13:49:18,486 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:49:18,518 INFO L415 sIntCurrentIteration]: We unified 214 AI predicates to 214 [2018-11-23 13:49:18,518 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:49:18,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:49:18,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-23 13:49:18,519 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:49:18,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:49:18,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:49:18,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:49:18,519 INFO L87 Difference]: Start difference. First operand 4239 states and 5524 transitions. Second operand 6 states. [2018-11-23 13:49:30,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:49:30,052 INFO L93 Difference]: Finished difference Result 8608 states and 11193 transitions. [2018-11-23 13:49:30,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:49:30,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 215 [2018-11-23 13:49:30,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:49:30,104 INFO L225 Difference]: With dead ends: 8608 [2018-11-23 13:49:30,104 INFO L226 Difference]: Without dead ends: 4379 [2018-11-23 13:49:30,114 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 215 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:49:30,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2018-11-23 13:49:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4378. [2018-11-23 13:49:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-11-23 13:49:30,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 5662 transitions. [2018-11-23 13:49:30,201 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 5662 transitions. Word has length 215 [2018-11-23 13:49:30,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:49:30,201 INFO L480 AbstractCegarLoop]: Abstraction has 4378 states and 5662 transitions. [2018-11-23 13:49:30,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:49:30,201 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 5662 transitions. [2018-11-23 13:49:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-11-23 13:49:30,213 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:49:30,213 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:49:30,213 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:49:30,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:30,214 INFO L82 PathProgramCache]: Analyzing trace with hash -878759303, now seen corresponding path program 1 times [2018-11-23 13:49:30,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:49:30,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:30,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:30,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:49:30,215 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:49:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 116 proven. 196 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 13:49:30,621 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:49:30,621 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:49:30,621 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 286 with the following transitions: [2018-11-23 13:49:30,621 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], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 13:49:30,624 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:49:30,624 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:49:30,954 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:49:30,954 INFO L272 AbstractInterpreter]: Visited 108 different actions 523 times. Merged at 7 different actions 27 times. Never widened. Performed 5304 root evaluator evaluations with a maximum evaluation depth of 14. Performed 5304 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 7 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 13:49:30,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:49:30,956 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:49:30,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:49:30,956 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:49:30,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:49:30,964 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:49:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:49:31,023 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:49:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-23 13:49:31,113 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:49:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 171 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-23 13:49:31,281 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:49:31,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2018-11-23 13:49:31,282 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:49:31,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 13:49:31,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 13:49:31,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:49:31,283 INFO L87 Difference]: Start difference. First operand 4378 states and 5662 transitions. Second operand 18 states. [2018-11-23 13:49:35,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:49:35,677 INFO L93 Difference]: Finished difference Result 11300 states and 15944 transitions. [2018-11-23 13:49:35,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-23 13:49:35,677 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 285 [2018-11-23 13:49:35,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:49:35,678 INFO L225 Difference]: With dead ends: 11300 [2018-11-23 13:49:35,678 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:49:35,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 596 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=566, Invalid=2296, Unknown=0, NotChecked=0, Total=2862 [2018-11-23 13:49:35,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:49:35,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:49:35,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:49:35,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:49:35,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 285 [2018-11-23 13:49:35,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:49:35,709 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:49:35,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 13:49:35,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:49:35,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:49:35,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:49:35,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:35,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,026 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 139 [2018-11-23 13:49:36,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:49:36,187 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 143 [2018-11-23 13:49:36,755 WARN L180 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 42 [2018-11-23 13:49:36,967 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 40 [2018-11-23 13:49:37,155 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 40 [2018-11-23 13:49:37,156 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:49:37,156 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,157 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-23 13:49:37,158 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-23 13:49:37,159 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-23 13:49:37,160 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 13:49:37,161 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-23 13:49:37,162 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (= 7 |old(~a19~0)|)) (.cse6 (= |old(~a10~0)| ~a10~0)) (.cse7 (= ~a1~0 |old(~a1~0)|))) (let ((.cse0 (and (= ~a19~0 |old(~a19~0)|) .cse6 .cse7)) (.cse4 (not .cse1)) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= 0 ~a12~0))) (.cse5 (and (= 7 ~a19~0) .cse6 .cse7))) (and (or .cse0 .cse1 (= 10 |old(~a19~0)|) .cse2 .cse3) (or (or .cse1 (< 1 |old(~a10~0)|)) .cse2 .cse3 .cse0) (or .cse4 (not (= 1 |old(~a10~0)|)) .cse2 .cse3 .cse5) (or .cse4 .cse2 .cse3 (< 218 |old(~a1~0)|) .cse5 (not (= 2 |old(~a10~0)|)))))) [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-23 13:49:37,163 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-23 13:49:37,164 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 13:49:37,165 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L444 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)) [2018-11-23 13:49:37,166 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= ~a19~0 7)))) (or (not (= 23 |old(~a1~0)|)) (= 1 ~a10~0) (and .cse0 (<= ~a10~0 1)) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 (not (= ~a19~0 10))) (and (<= ~a1~0 218) (= 2 ~a10~0) (= 7 ~a19~0)) (not (= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)))) [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-23 13:49:37,166 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (not (= ~a19~0 7)))) (or (not (= 23 |old(~a1~0)|)) (= 1 ~a10~0) (and .cse0 (<= ~a10~0 1)) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 (not (= ~a19~0 10))) (and (<= ~a1~0 218) (= 2 ~a10~0) (= 7 ~a19~0)) (not (= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)))) [2018-11-23 13:49:37,166 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-11-23 13:49:37,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:49:37 BoogieIcfgContainer [2018-11-23 13:49:37,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:49:37,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:49:37,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:49:37,179 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:49:37,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:09" (3/4) ... [2018-11-23 13:49:37,182 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:49:37,186 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:49:37,186 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 13:49:37,187 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:49:37,195 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 13:49:37,196 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 13:49:37,216 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(23 == \old(a1)) || 1 == a10) || (!(a19 == 7) && a10 <= 1)) || !(0 == a12)) || !(0 == \old(a10))) || (!(a19 == 7) && !(a19 == 10))) || ((a1 <= 218 && 2 == a10) && 7 == a19)) || !(9 == \old(a19))) || !(14 == a4) [2018-11-23 13:49:37,279 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b3555c96-3585-4725-bfe7-ae9c49217345/bin-2019/utaipan/witness.graphml [2018-11-23 13:49:37,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:49:37,281 INFO L168 Benchmark]: Toolchain (without parser) took 29609.49 ms. Allocated memory was 1.0 GB in the beginning and 3.1 GB in the end (delta: 2.1 GB). Free memory was 957.6 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 787.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:49:37,282 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-23 13:49:37,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.78 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 921.6 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:49:37,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:49:37,282 INFO L168 Benchmark]: Boogie Preprocessor took 50.01 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. [2018-11-23 13:49:37,282 INFO L168 Benchmark]: RCFGBuilder took 978.60 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: 106.0 MB). Peak memory consumption was 106.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:49:37,283 INFO L168 Benchmark]: TraceAbstraction took 28027.01 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 2.0 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 713.9 MB. Max. memory is 11.5 GB. [2018-11-23 13:49:37,283 INFO L168 Benchmark]: Witness Printer took 101.66 ms. Allocated memory is still 3.1 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-23 13:49:37,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 370.78 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 921.6 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.01 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 978.60 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: 106.0 MB). Peak memory consumption was 106.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28027.01 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 2.0 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 713.9 MB. Max. memory is 11.5 GB. * Witness Printer took 101.66 ms. Allocated memory is still 3.1 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: (((((((!(23 == \old(a1)) || 1 == a10) || (!(a19 == 7) && a10 <= 1)) || !(0 == a12)) || !(0 == \old(a10))) || (!(a19 == 7) && !(a19 == 10))) || ((a1 <= 218 && 2 == a10) && 7 == a19)) || !(9 == \old(a19))) || !(14 == a4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 27.9s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 22.7s AutomataDifference, 0.0s DeadEndRemovalTime, 1.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 757 SDtfs, 9390 SDslu, 1487 SDs, 0 SdLazy, 16768 SolverSat, 3235 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1364 GetRequests, 1232 SyntacticMatches, 8 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4378occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9973692195654815 AbsIntWeakeningRatio, 0.12149532710280374 AbsIntAvgWeakeningVarsNumRemoved, 15.36448598130841 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 484 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 113 PreInvPairs, 229 NumberOfFragments, 271 HoareAnnotationTreeSize, 113 FomulaSimplifications, 25214 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9282 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1649 NumberOfCodeBlocks, 1649 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2124 ConstructedInterpolants, 0 QuantifiedInterpolants, 2178040 SizeOfPredicates, 1 NumberOfNonLiveVariables, 873 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 1271/1625 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...