./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/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 1225f82562543767c482452e9133e4a69d5dae70 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:19:43,193 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:19:43,195 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:19:43,202 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:19:43,202 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:19:43,203 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:19:43,204 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:19:43,205 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:19:43,206 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:19:43,207 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:19:43,207 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:19:43,208 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:19:43,208 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:19:43,209 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:19:43,210 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:19:43,210 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:19:43,211 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:19:43,212 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:19:43,213 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:19:43,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:19:43,215 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:19:43,216 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:19:43,218 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:19:43,218 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:19:43,218 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:19:43,219 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:19:43,220 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:19:43,221 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:19:43,221 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:19:43,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:19:43,222 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:19:43,223 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:19:43,223 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:19:43,223 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:19:43,224 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:19:43,224 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:19:43,224 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 12:19:43,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:19:43,235 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:19:43,235 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:19:43,235 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:19:43,236 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:19:43,236 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:19:43,236 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:19:43,236 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:19:43,236 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:19:43,236 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:19:43,236 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:19:43,237 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:19:43,237 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:19:43,237 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:19:43,237 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:19:43,237 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:19:43,238 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:19:43,238 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:19:43,238 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:19:43,238 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:19:43,238 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:19:43,238 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:19:43,238 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:19:43,239 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:19:43,239 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:19:43,239 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:19:43,239 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:19:43,239 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:19:43,239 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:19:43,239 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:19:43,240 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:19:43,240 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:19:43,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:19:43,240 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:19:43,240 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/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 -> 1225f82562543767c482452e9133e4a69d5dae70 [2018-11-10 12:19:43,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:19:43,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:19:43,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:19:43,272 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:19:43,273 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:19:43,273 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-10 12:19:43,309 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/data/db4d39e56/24b66fa45efb4178b84ee7acb391c5a7/FLAGc1e3738d7 [2018-11-10 12:19:43,701 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:19:43,702 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-10 12:19:43,707 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/data/db4d39e56/24b66fa45efb4178b84ee7acb391c5a7/FLAGc1e3738d7 [2018-11-10 12:19:43,718 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/data/db4d39e56/24b66fa45efb4178b84ee7acb391c5a7 [2018-11-10 12:19:43,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:19:43,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:19:43,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:19:43,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:19:43,723 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:19:43,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10835ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43, skipping insertion in model container [2018-11-10 12:19:43,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:19:43,746 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:19:43,849 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:19:43,852 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:19:43,865 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:19:43,874 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:19:43,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43 WrapperNode [2018-11-10 12:19:43,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:19:43,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:19:43,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:19:43,875 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:19:43,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:19:43,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:19:43,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:19:43,889 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:19:43,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... [2018-11-10 12:19:43,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:19:43,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:19:43,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:19:43,906 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:19:43,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/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 [2018-11-10 12:19:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2018-11-10 12:19:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2018-11-10 12:19:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2018-11-10 12:19:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2018-11-10 12:19:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2018-11-10 12:19:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2018-11-10 12:19:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 12:19:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 12:19:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:19:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:19:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2018-11-10 12:19:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2018-11-10 12:19:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-10 12:19:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-11-10 12:19:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:19:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:19:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2018-11-10 12:19:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2018-11-10 12:19:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-10 12:19:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-11-10 12:19:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:19:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:19:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2018-11-10 12:19:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2018-11-10 12:19:44,170 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:19:44,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:19:44 BoogieIcfgContainer [2018-11-10 12:19:44,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:19:44,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:19:44,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:19:44,173 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:19:44,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:19:43" (1/3) ... [2018-11-10 12:19:44,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592c7b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:19:44, skipping insertion in model container [2018-11-10 12:19:44,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:19:43" (2/3) ... [2018-11-10 12:19:44,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592c7b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:19:44, skipping insertion in model container [2018-11-10 12:19:44,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:19:44" (3/3) ... [2018-11-10 12:19:44,175 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful_check_false-unreach-call_false-termination.i [2018-11-10 12:19:44,181 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:19:44,185 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:19:44,193 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:19:44,213 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:19:44,213 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:19:44,213 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:19:44,213 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:19:44,214 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:19:44,214 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:19:44,214 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:19:44,214 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:19:44,224 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-10 12:19:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 12:19:44,228 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:19:44,229 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:19:44,230 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:19:44,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:44,234 INFO L82 PathProgramCache]: Analyzing trace with hash -16952088, now seen corresponding path program 1 times [2018-11-10 12:19:44,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:19:44,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:19:44,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,271 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:19:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:19:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:19:44,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:19:44,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:19:44,315 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:19:44,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:19:44,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:19:44,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:19:44,327 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-11-10 12:19:44,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:19:44,346 INFO L93 Difference]: Finished difference Result 137 states and 182 transitions. [2018-11-10 12:19:44,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:19:44,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-10 12:19:44,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:19:44,353 INFO L225 Difference]: With dead ends: 137 [2018-11-10 12:19:44,353 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 12:19:44,356 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:19:44,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 12:19:44,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-10 12:19:44,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 12:19:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2018-11-10 12:19:44,390 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 16 [2018-11-10 12:19:44,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:19:44,390 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2018-11-10 12:19:44,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:19:44,390 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2018-11-10 12:19:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:19:44,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:19:44,391 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:19:44,391 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:19:44,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:44,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2034240647, now seen corresponding path program 1 times [2018-11-10 12:19:44,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:19:44,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:19:44,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,392 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:19:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:19:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:19:44,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:19:44,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:19:44,440 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:19:44,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:19:44,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:19:44,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:19:44,442 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand 3 states. [2018-11-10 12:19:44,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:19:44,477 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2018-11-10 12:19:44,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:19:44,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-10 12:19:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:19:44,480 INFO L225 Difference]: With dead ends: 110 [2018-11-10 12:19:44,480 INFO L226 Difference]: Without dead ends: 104 [2018-11-10 12:19:44,481 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:19:44,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-10 12:19:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-10 12:19:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-10 12:19:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2018-11-10 12:19:44,491 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 18 [2018-11-10 12:19:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:19:44,491 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2018-11-10 12:19:44,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:19:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2018-11-10 12:19:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 12:19:44,492 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:19:44,492 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:19:44,492 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:19:44,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:44,493 INFO L82 PathProgramCache]: Analyzing trace with hash -218123673, now seen corresponding path program 1 times [2018-11-10 12:19:44,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:19:44,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:19:44,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,493 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:19:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:19:44,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:19:44,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:19:44,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:19:44,523 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:19:44,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:19:44,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:19:44,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:19:44,524 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand 3 states. [2018-11-10 12:19:44,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:19:44,597 INFO L93 Difference]: Finished difference Result 224 states and 303 transitions. [2018-11-10 12:19:44,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:19:44,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-10 12:19:44,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:19:44,600 INFO L225 Difference]: With dead ends: 224 [2018-11-10 12:19:44,600 INFO L226 Difference]: Without dead ends: 131 [2018-11-10 12:19:44,600 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:19:44,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-11-10 12:19:44,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2018-11-10 12:19:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-10 12:19:44,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 173 transitions. [2018-11-10 12:19:44,614 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 173 transitions. Word has length 30 [2018-11-10 12:19:44,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:19:44,614 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 173 transitions. [2018-11-10 12:19:44,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:19:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 173 transitions. [2018-11-10 12:19:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 12:19:44,616 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:19:44,616 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 12:19:44,616 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:19:44,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:44,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1161200264, now seen corresponding path program 1 times [2018-11-10 12:19:44,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:19:44,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:19:44,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:44,618 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:19:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:19:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:19:44,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 12:19:44,666 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 12:19:44,666 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-11-10 12:19:44,667 INFO L202 CegarAbsIntRunner]: [16], [24], [25], [26], [29], [31], [34], [36], [39], [40], [49], [55], [57], [61], [63], [68], [71], [74], [76], [81], [94], [107], [110], [113], [127], [134], [135], [144], [145], [146], [148], [152], [153], [154], [156], [157], [158], [159], [164] [2018-11-10 12:19:44,697 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 12:19:44,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 12:19:44,866 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 12:19:44,867 INFO L272 AbstractInterpreter]: Visited 28 different actions 45 times. Merged at 12 different actions 12 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 11 variables. [2018-11-10 12:19:44,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:44,883 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 12:19:45,019 INFO L227 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 48.29% of their original sizes. [2018-11-10 12:19:45,020 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 12:19:45,371 INFO L415 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2018-11-10 12:19:45,371 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 12:19:45,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 12:19:45,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-10 12:19:45,372 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:19:45,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 12:19:45,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 12:19:45,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-11-10 12:19:45,373 INFO L87 Difference]: Start difference. First operand 130 states and 173 transitions. Second operand 15 states. [2018-11-10 12:19:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:19:47,050 INFO L93 Difference]: Finished difference Result 301 states and 413 transitions. [2018-11-10 12:19:47,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-10 12:19:47,050 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2018-11-10 12:19:47,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:19:47,051 INFO L225 Difference]: With dead ends: 301 [2018-11-10 12:19:47,052 INFO L226 Difference]: Without dead ends: 182 [2018-11-10 12:19:47,053 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-11-10 12:19:47,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-11-10 12:19:47,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 174. [2018-11-10 12:19:47,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-10 12:19:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 233 transitions. [2018-11-10 12:19:47,069 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 233 transitions. Word has length 42 [2018-11-10 12:19:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:19:47,070 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 233 transitions. [2018-11-10 12:19:47,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 12:19:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 233 transitions. [2018-11-10 12:19:47,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 12:19:47,072 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:19:47,072 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 12:19:47,073 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:19:47,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:47,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1228207017, now seen corresponding path program 1 times [2018-11-10 12:19:47,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:19:47,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:47,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:19:47,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:47,074 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:19:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:19:47,109 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:19:47,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 12:19:47,110 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 12:19:47,110 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-11-10 12:19:47,110 INFO L202 CegarAbsIntRunner]: [16], [24], [25], [26], [30], [31], [34], [36], [39], [40], [49], [55], [57], [61], [63], [68], [71], [74], [76], [81], [94], [107], [110], [113], [127], [134], [135], [144], [145], [146], [148], [152], [153], [154], [156], [157], [158], [159], [164] [2018-11-10 12:19:47,112 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 12:19:47,112 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 12:19:47,137 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 12:19:47,137 INFO L272 AbstractInterpreter]: Visited 28 different actions 45 times. Merged at 12 different actions 12 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 11 variables. [2018-11-10 12:19:47,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:47,138 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 12:19:47,182 INFO L227 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 55.07% of their original sizes. [2018-11-10 12:19:47,182 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 12:19:47,363 INFO L415 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2018-11-10 12:19:47,363 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 12:19:47,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 12:19:47,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-10 12:19:47,363 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:19:47,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 12:19:47,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 12:19:47,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2018-11-10 12:19:47,364 INFO L87 Difference]: Start difference. First operand 174 states and 233 transitions. Second operand 15 states. [2018-11-10 12:19:48,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:19:48,378 INFO L93 Difference]: Finished difference Result 382 states and 528 transitions. [2018-11-10 12:19:48,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 12:19:48,379 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2018-11-10 12:19:48,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:19:48,380 INFO L225 Difference]: With dead ends: 382 [2018-11-10 12:19:48,380 INFO L226 Difference]: Without dead ends: 219 [2018-11-10 12:19:48,381 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-11-10 12:19:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-11-10 12:19:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2018-11-10 12:19:48,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-10 12:19:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 292 transitions. [2018-11-10 12:19:48,396 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 292 transitions. Word has length 42 [2018-11-10 12:19:48,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:19:48,396 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 292 transitions. [2018-11-10 12:19:48,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 12:19:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 292 transitions. [2018-11-10 12:19:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-10 12:19:48,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:19:48,398 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-11-10 12:19:48,399 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:19:48,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:48,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1468161056, now seen corresponding path program 1 times [2018-11-10 12:19:48,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:19:48,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:48,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:19:48,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:48,400 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:19:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:19:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 12:19:48,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:19:48,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 12:19:48,428 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:19:48,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 12:19:48,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:19:48,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:19:48,429 INFO L87 Difference]: Start difference. First operand 216 states and 292 transitions. Second operand 4 states. [2018-11-10 12:19:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:19:48,483 INFO L93 Difference]: Finished difference Result 553 states and 783 transitions. [2018-11-10 12:19:48,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:19:48,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-11-10 12:19:48,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:19:48,485 INFO L225 Difference]: With dead ends: 553 [2018-11-10 12:19:48,485 INFO L226 Difference]: Without dead ends: 348 [2018-11-10 12:19:48,486 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:19:48,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-11-10 12:19:48,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 294. [2018-11-10 12:19:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-11-10 12:19:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 417 transitions. [2018-11-10 12:19:48,506 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 417 transitions. Word has length 54 [2018-11-10 12:19:48,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:19:48,506 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 417 transitions. [2018-11-10 12:19:48,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 12:19:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 417 transitions. [2018-11-10 12:19:48,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-10 12:19:48,509 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:19:48,509 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2018-11-10 12:19:48,509 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:19:48,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:19:48,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1627599641, now seen corresponding path program 1 times [2018-11-10 12:19:48,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:19:48,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:48,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:19:48,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:19:48,510 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:19:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:19:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:19:48,550 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:19:48,567 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,568 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,568 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,569 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,570 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,570 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,570 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,571 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,571 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,571 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,571 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,572 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,572 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,572 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:19:48 BoogieIcfgContainer [2018-11-10 12:19:48,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:19:48,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:19:48,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:19:48,581 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:19:48,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:19:44" (3/4) ... [2018-11-10 12:19:48,583 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:19:48,587 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,587 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,587 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,587 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,588 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,588 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,588 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,588 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,588 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,589 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,589 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,589 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,589 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,590 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 12:19:48,624 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f53d363c-9425-4b56-b1a3-119b5daad2ad/bin-2019/utaipan/witness.graphml [2018-11-10 12:19:48,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:19:48,624 INFO L168 Benchmark]: Toolchain (without parser) took 4904.19 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.2 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 164.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:19:48,626 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. [2018-11-10 12:19:48,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:19:48,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:19:48,627 INFO L168 Benchmark]: Boogie Preprocessor took 16.46 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:19:48,627 INFO L168 Benchmark]: RCFGBuilder took 265.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:19:48,627 INFO L168 Benchmark]: TraceAbstraction took 4408.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.1 MB). Peak memory consumption was 181.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:19:48,628 INFO L168 Benchmark]: Witness Printer took 43.17 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:19:48,629 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 153.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.46 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 265.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4408.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.1 MB). Peak memory consumption was 181.7 MB. Max. memory is 11.5 GB. * Witness Printer took 43.17 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; [L11] int open_called = 0; VAL [\old(ldv_mutex)=4, \old(open_called)=3, ldv_mutex=1, open_called=0] [L74] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L75] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L69] open_called = 0 [L70] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L75] my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, my_init()=0, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L81] COND TRUE ldv_s_misc_fops_file_operations==0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L82] CALL misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L57] COND TRUE __VERIFIER_nondet_int() [L59] RET return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L82] misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, misc_open()=1, open_called=0] [L83] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L89] COND TRUE ldv_s_misc_fops_file_operations==1 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L90] CALL misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L52] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L90] misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, misc_read()=0, open_called=0] [L91] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L97] COND TRUE ldv_s_misc_fops_file_operations==2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L98] CALL misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L48] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L98] misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, misc_llseek()=0, open_called=0] [L99] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: [L104] case 3: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L105] COND TRUE ldv_s_misc_fops_file_operations==3 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L106] CALL misc_release() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L34] COND FALSE !(\read(open_called)) VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L41] CALL mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L16] COND TRUE (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L17] RET ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L41] mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L42] CALL mutex_lock() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] COND FALSE !((ldv_mutex == 1) ? 0 : __blast_assert()) VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] CALL __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L4] __VERIFIER_error() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 75 locations, 1 error locations. UNSAFE Result, 4.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 495 SDtfs, 452 SDslu, 1117 SDs, 0 SdLazy, 299 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 103 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9490391722099039 AbsIntWeakeningRatio, 0.35365853658536583 AbsIntAvgWeakeningVarsNumRemoved, 14.365853658536585 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 66 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 12598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 18/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...