./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.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_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/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 534681b11e8e68e6058985d885b01f2cbfa43e5b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:14:41,299 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:14:41,300 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:14:41,307 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:14:41,307 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:14:41,307 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:14:41,308 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:14:41,309 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:14:41,311 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:14:41,311 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:14:41,312 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:14:41,312 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:14:41,313 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:14:41,313 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:14:41,314 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:14:41,315 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:14:41,315 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:14:41,317 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:14:41,318 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:14:41,319 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:14:41,320 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:14:41,321 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:14:41,323 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:14:41,324 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:14:41,324 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:14:41,324 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:14:41,325 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:14:41,326 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:14:41,327 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:14:41,328 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:14:41,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:14:41,328 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:14:41,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:14:41,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:14:41,329 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:14:41,330 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:14:41,330 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 08:14:41,341 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:14:41,341 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:14:41,342 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:14:41,342 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 08:14:41,343 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 08:14:41,343 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 08:14:41,343 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 08:14:41,343 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 08:14:41,343 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 08:14:41,343 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 08:14:41,344 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 08:14:41,344 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:14:41,344 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:14:41,344 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:14:41,345 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:14:41,345 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:14:41,345 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:14:41,345 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:14:41,345 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:14:41,345 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:14:41,345 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:14:41,346 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:14:41,346 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:14:41,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:14:41,348 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:14:41,348 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:14:41,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:14:41,349 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:14:41,349 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:14:41,349 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:14:41,349 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 08:14:41,349 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:14:41,349 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:14:41,349 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 08:14:41,350 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_e4087047-704a-430d-98a5-fea71be17b89/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 -> 534681b11e8e68e6058985d885b01f2cbfa43e5b [2018-11-10 08:14:41,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:14:41,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:14:41,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:14:41,383 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:14:41,383 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:14:41,384 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-11-10 08:14:41,421 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/data/7c77879b1/ddc45baf22f24d24ab437e9775aba298/FLAG03d295178 [2018-11-10 08:14:41,804 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:14:41,805 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-11-10 08:14:41,813 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/data/7c77879b1/ddc45baf22f24d24ab437e9775aba298/FLAG03d295178 [2018-11-10 08:14:41,822 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/data/7c77879b1/ddc45baf22f24d24ab437e9775aba298 [2018-11-10 08:14:41,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:14:41,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:14:41,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:14:41,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:14:41,829 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:14:41,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:14:41" (1/1) ... [2018-11-10 08:14:41,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b51c276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:41, skipping insertion in model container [2018-11-10 08:14:41,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:14:41" (1/1) ... [2018-11-10 08:14:41,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:14:41,867 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:14:42,061 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:14:42,069 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:14:42,109 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:14:42,136 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:14:42,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42 WrapperNode [2018-11-10 08:14:42,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:14:42,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:14:42,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:14:42,138 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:14:42,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:14:42,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:14:42,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:14:42,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:14:42,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... [2018-11-10 08:14:42,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:14:42,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:14:42,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:14:42,280 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:14:42,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/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 08:14:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-11-10 08:14:42,319 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-11-10 08:14:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-11-10 08:14:42,319 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-11-10 08:14:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-10 08:14:42,319 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-10 08:14:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-10 08:14:42,319 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-10 08:14:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:14:42,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:14:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-11-10 08:14:42,319 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-11-10 08:14:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:14:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:14:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-11-10 08:14:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-11-10 08:14:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:14:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:14:42,804 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:14:42,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:14:42 BoogieIcfgContainer [2018-11-10 08:14:42,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:14:42,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:14:42,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:14:42,809 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:14:42,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:14:41" (1/3) ... [2018-11-10 08:14:42,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7d177d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:14:42, skipping insertion in model container [2018-11-10 08:14:42,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:14:42" (2/3) ... [2018-11-10 08:14:42,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7d177d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:14:42, skipping insertion in model container [2018-11-10 08:14:42,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:14:42" (3/3) ... [2018-11-10 08:14:42,812 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-11-10 08:14:42,818 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:14:42,824 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:14:42,833 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:14:42,853 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:14:42,853 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:14:42,853 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:14:42,853 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:14:42,853 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:14:42,854 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:14:42,854 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:14:42,854 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:14:42,868 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2018-11-10 08:14:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 08:14:42,872 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:42,873 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:14:42,875 INFO L424 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:42,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:42,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1901168194, now seen corresponding path program 1 times [2018-11-10 08:14:42,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:42,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:42,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:42,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:42,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:14:42,961 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 08:14:42,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:14:42,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:14:42,962 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:14:42,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 08:14:42,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 08:14:42,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:14:42,975 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2018-11-10 08:14:43,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:14:43,003 INFO L93 Difference]: Finished difference Result 240 states and 391 transitions. [2018-11-10 08:14:43,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 08:14:43,004 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-10 08:14:43,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:14:43,012 INFO L225 Difference]: With dead ends: 240 [2018-11-10 08:14:43,012 INFO L226 Difference]: Without dead ends: 111 [2018-11-10 08:14:43,015 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 08:14:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-11-10 08:14:43,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-11-10 08:14:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-10 08:14:43,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2018-11-10 08:14:43,047 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 14 [2018-11-10 08:14:43,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:14:43,048 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2018-11-10 08:14:43,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 08:14:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2018-11-10 08:14:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:14:43,049 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:43,049 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:14:43,049 INFO L424 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:43,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:43,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1660650102, now seen corresponding path program 1 times [2018-11-10 08:14:43,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:43,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:43,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,051 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:14:43,082 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 08:14:43,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:14:43,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:14:43,083 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:14:43,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:14:43,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:14:43,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:14:43,084 INFO L87 Difference]: Start difference. First operand 111 states and 134 transitions. Second operand 3 states. [2018-11-10 08:14:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:14:43,104 INFO L93 Difference]: Finished difference Result 216 states and 262 transitions. [2018-11-10 08:14:43,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:14:43,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 08:14:43,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:14:43,105 INFO L225 Difference]: With dead ends: 216 [2018-11-10 08:14:43,105 INFO L226 Difference]: Without dead ends: 118 [2018-11-10 08:14:43,106 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 08:14:43,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-10 08:14:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2018-11-10 08:14:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-10 08:14:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2018-11-10 08:14:43,114 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 16 [2018-11-10 08:14:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:14:43,114 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2018-11-10 08:14:43,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:14:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2018-11-10 08:14:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 08:14:43,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:43,115 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:14:43,115 INFO L424 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:43,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:43,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2112489170, now seen corresponding path program 1 times [2018-11-10 08:14:43,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:43,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:43,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,116 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:14:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:14:43,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:14:43,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 08:14:43,212 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:14:43,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 08:14:43,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 08:14:43,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:14:43,212 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand 6 states. [2018-11-10 08:14:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:14:43,347 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2018-11-10 08:14:43,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:14:43,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-10 08:14:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:14:43,349 INFO L225 Difference]: With dead ends: 163 [2018-11-10 08:14:43,350 INFO L226 Difference]: Without dead ends: 158 [2018-11-10 08:14:43,350 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:14:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-10 08:14:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 119. [2018-11-10 08:14:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-11-10 08:14:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2018-11-10 08:14:43,362 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 23 [2018-11-10 08:14:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:14:43,362 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2018-11-10 08:14:43,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 08:14:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2018-11-10 08:14:43,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 08:14:43,363 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:43,363 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 08:14:43,364 INFO L424 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:43,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:43,364 INFO L82 PathProgramCache]: Analyzing trace with hash 534541990, now seen corresponding path program 1 times [2018-11-10 08:14:43,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:43,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:43,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,366 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:14:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 08:14:43,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:14:43,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 08:14:43,474 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:14:43,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:14:43,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:14:43,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:14:43,474 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand 5 states. [2018-11-10 08:14:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:14:43,644 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2018-11-10 08:14:43,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:14:43,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-10 08:14:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:14:43,645 INFO L225 Difference]: With dead ends: 121 [2018-11-10 08:14:43,646 INFO L226 Difference]: Without dead ends: 118 [2018-11-10 08:14:43,646 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:14:43,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-10 08:14:43,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-11-10 08:14:43,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-11-10 08:14:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 140 transitions. [2018-11-10 08:14:43,656 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 140 transitions. Word has length 31 [2018-11-10 08:14:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:14:43,657 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 140 transitions. [2018-11-10 08:14:43,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:14:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 140 transitions. [2018-11-10 08:14:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 08:14:43,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:43,658 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 08:14:43,658 INFO L424 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:43,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:43,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1253948128, now seen corresponding path program 1 times [2018-11-10 08:14:43,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:43,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:43,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,661 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:14:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 08:14:43,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:14:43,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 08:14:43,745 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:14:43,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:14:43,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:14:43,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:14:43,746 INFO L87 Difference]: Start difference. First operand 118 states and 140 transitions. Second operand 5 states. [2018-11-10 08:14:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:14:43,858 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2018-11-10 08:14:43,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:14:43,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-10 08:14:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:14:43,861 INFO L225 Difference]: With dead ends: 120 [2018-11-10 08:14:43,861 INFO L226 Difference]: Without dead ends: 117 [2018-11-10 08:14:43,862 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:14:43,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-10 08:14:43,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-11-10 08:14:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-10 08:14:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2018-11-10 08:14:43,870 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 31 [2018-11-10 08:14:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:14:43,871 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2018-11-10 08:14:43,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:14:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2018-11-10 08:14:43,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 08:14:43,871 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:43,872 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 08:14:43,872 INFO L424 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:43,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:43,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1309830707, now seen corresponding path program 1 times [2018-11-10 08:14:43,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:43,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:43,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:43,873 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:14:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:14:44,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:14:44,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 08:14:44,025 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:14:44,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 08:14:44,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 08:14:44,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:14:44,026 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand 8 states. [2018-11-10 08:14:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:14:44,207 INFO L93 Difference]: Finished difference Result 155 states and 181 transitions. [2018-11-10 08:14:44,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 08:14:44,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-10 08:14:44,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:14:44,209 INFO L225 Difference]: With dead ends: 155 [2018-11-10 08:14:44,209 INFO L226 Difference]: Without dead ends: 152 [2018-11-10 08:14:44,210 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-10 08:14:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-11-10 08:14:44,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 123. [2018-11-10 08:14:44,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-10 08:14:44,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2018-11-10 08:14:44,221 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 34 [2018-11-10 08:14:44,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:14:44,221 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2018-11-10 08:14:44,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 08:14:44,222 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2018-11-10 08:14:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 08:14:44,222 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:44,223 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 08:14:44,223 INFO L424 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:44,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:44,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1080201303, now seen corresponding path program 1 times [2018-11-10 08:14:44,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:44,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:44,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:44,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:44,225 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:14:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:14:44,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:14:44,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 08:14:44,312 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:14:44,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 08:14:44,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 08:14:44,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:14:44,313 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 8 states. [2018-11-10 08:14:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:14:44,507 INFO L93 Difference]: Finished difference Result 154 states and 179 transitions. [2018-11-10 08:14:44,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 08:14:44,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-10 08:14:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:14:44,509 INFO L225 Difference]: With dead ends: 154 [2018-11-10 08:14:44,509 INFO L226 Difference]: Without dead ends: 151 [2018-11-10 08:14:44,509 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-10 08:14:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-11-10 08:14:44,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 129. [2018-11-10 08:14:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-10 08:14:44,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-11-10 08:14:44,518 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 34 [2018-11-10 08:14:44,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:14:44,518 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-11-10 08:14:44,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 08:14:44,519 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-11-10 08:14:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 08:14:44,519 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:14:44,520 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 08:14:44,520 INFO L424 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:14:44,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:14:44,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1484899372, now seen corresponding path program 1 times [2018-11-10 08:14:44,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:14:44,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:44,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:14:44,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:14:44,522 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:14:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:14:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:14:44,569 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 08:14:44,581 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,582 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,583 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,583 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,583 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,584 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,584 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,584 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,585 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,585 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,585 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,586 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,586 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,586 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,587 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,587 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,587 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,588 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:14:44 BoogieIcfgContainer [2018-11-10 08:14:44,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:14:44,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:14:44,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:14:44,604 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:14:44,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:14:42" (3/4) ... [2018-11-10 08:14:44,606 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 08:14:44,607 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,607 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,607 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,607 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,607 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,608 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,608 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,608 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,608 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,608 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,609 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,609 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,609 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,609 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,610 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,610 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,610 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,610 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:14:44,655 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e4087047-704a-430d-98a5-fea71be17b89/bin-2019/utaipan/witness.graphml [2018-11-10 08:14:44,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:14:44,656 INFO L168 Benchmark]: Toolchain (without parser) took 2830.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.5 MB in the beginning and 814.2 MB in the end (delta: 142.3 MB). Peak memory consumption was 271.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:14:44,657 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:14:44,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.37 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 928.5 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:14:44,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 928.5 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:14:44,658 INFO L168 Benchmark]: Boogie Preprocessor took 46.17 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:14:44,658 INFO L168 Benchmark]: RCFGBuilder took 527.67 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: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:14:44,659 INFO L168 Benchmark]: TraceAbstraction took 1795.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.9 MB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:14:44,659 INFO L168 Benchmark]: Witness Printer took 51.39 ms. Allocated memory is still 1.2 GB. Free memory was 820.9 MB in the beginning and 814.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:14:44,661 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.37 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 928.5 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 928.5 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.17 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 527.67 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: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1795.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.9 MB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 11.5 GB. * Witness Printer took 51.39 ms. Allocated memory is still 1.2 GB. Free memory was 820.9 MB in the beginning and 814.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] struct list *data = ((void *)0); [L628] COND TRUE __VERIFIER_nondet_int() [L629] EXPR, FCALL malloc(sizeof *node) [L629] struct node *node = malloc(sizeof *node); [L630] COND FALSE !(!node) [L632] CALL node->next = node [L632] RET node->next = node [L633] CALL node->value = __VERIFIER_nondet_int() [L633] RET node->value = __VERIFIER_nondet_int() [L634] EXPR, FCALL malloc(sizeof *item) [L634] struct list *item = malloc(sizeof *item); [L635] COND FALSE !(!item) [L637] CALL item->slist = node [L637] RET item->slist = node [L638] CALL item->next = data [L638] RET item->next = data [L639] data = item [L628] COND FALSE !(__VERIFIER_nondet_int()) [L641] COND FALSE !(!data) [L643] CALL inspect_before(data) [L604] COND FALSE !(!(shape)) [L604] COND FALSE !(0) [L605] CALL shape->next [L605] RET shape->next [L605] COND FALSE !(shape->next) [L611] COND FALSE !(!(shape)) [L611] COND FALSE !(0) [L612] CALL, EXPR shape->next [L612] RET, EXPR shape->next [L612] COND FALSE !(!(shape->next == ((void *)0))) [L612] COND FALSE !(0) [L613] CALL, EXPR shape->slist [L613] RET, EXPR shape->slist [L613] COND FALSE !(!(shape->slist)) [L613] COND FALSE !(0) [L614] CALL, EXPR shape->slist [L614] RET, EXPR shape->slist [L614] CALL, EXPR shape->slist->next [L614] RET, EXPR shape->slist->next [L614] COND TRUE !(shape->slist->next == ((void *)0)) [L614] CALL fail() [L554] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 124 locations, 1 error locations. UNSAFE Result, 1.7s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 866 SDtfs, 419 SDslu, 2001 SDs, 0 SdLazy, 646 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 94 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 21770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 15/15 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...