./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list2_true-termination.c_true-unreach-call.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_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list2_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10cd30ad3ca5cbac349bf58887b96141941b6c91 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:00:27,388 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:00:27,389 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:00:27,395 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:00:27,395 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:00:27,395 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:00:27,396 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:00:27,397 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:00:27,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:00:27,398 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:00:27,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:00:27,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:00:27,400 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:00:27,400 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:00:27,401 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:00:27,401 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:00:27,402 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:00:27,403 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:00:27,404 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:00:27,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:00:27,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:00:27,407 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:00:27,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:00:27,408 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:00:27,408 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:00:27,408 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:00:27,409 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:00:27,409 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:00:27,410 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:00:27,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:00:27,411 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:00:27,411 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:00:27,411 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:00:27,412 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:00:27,412 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:00:27,413 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:00:27,413 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 13:00:27,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:00:27,420 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:00:27,421 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:00:27,421 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:00:27,421 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:00:27,421 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:00:27,422 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:00:27,422 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:00:27,422 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:00:27,422 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:00:27,422 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:00:27,422 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:00:27,422 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:00:27,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:00:27,423 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:00:27,423 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:00:27,423 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:00:27,423 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:00:27,423 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:00:27,423 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:00:27,424 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:00:27,424 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:00:27,424 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:00:27,424 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:00:27,424 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:00:27,424 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:00:27,424 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 13:00:27,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:00:27,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:00:27,425 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer 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 -> Automizer 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 -> 10cd30ad3ca5cbac349bf58887b96141941b6c91 [2018-11-10 13:00:27,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:00:27,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:00:27,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:00:27,460 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:00:27,460 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:00:27,460 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/rule60_list2_true-termination.c_true-unreach-call.i [2018-11-10 13:00:27,496 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/data/e8c3be45a/53bab3f1c357461cacbf4b90f387b157/FLAGb30de1e62 [2018-11-10 13:00:27,910 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:00:27,910 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/sv-benchmarks/c/ldv-regression/rule60_list2_true-termination.c_true-unreach-call.i [2018-11-10 13:00:27,915 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/data/e8c3be45a/53bab3f1c357461cacbf4b90f387b157/FLAGb30de1e62 [2018-11-10 13:00:27,924 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/data/e8c3be45a/53bab3f1c357461cacbf4b90f387b157 [2018-11-10 13:00:27,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:00:27,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:00:27,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:00:27,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:00:27,930 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:00:27,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:00:27" (1/1) ... [2018-11-10 13:00:27,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2a1d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:27, skipping insertion in model container [2018-11-10 13:00:27,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:00:27" (1/1) ... [2018-11-10 13:00:27,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:00:27,964 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:00:28,133 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:00:28,136 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:00:28,158 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:00:28,196 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:00:28,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28 WrapperNode [2018-11-10 13:00:28,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:00:28,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:00:28,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:00:28,198 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:00:28,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... [2018-11-10 13:00:28,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... [2018-11-10 13:00:28,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... [2018-11-10 13:00:28,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... [2018-11-10 13:00:28,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... [2018-11-10 13:00:28,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... [2018-11-10 13:00:28,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... [2018-11-10 13:00:28,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:00:28,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:00:28,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:00:28,279 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:00:28,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/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 13:00:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:00:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:00:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 13:00:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2018-11-10 13:00:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2018-11-10 13:00:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-10 13:00:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2018-11-10 13:00:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:00:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 13:00:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 13:00:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2018-11-10 13:00:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2018-11-10 13:00:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2018-11-10 13:00:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2018-11-10 13:00:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2018-11-10 13:00:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2018-11-10 13:00:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2018-11-10 13:00:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2018-11-10 13:00:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2018-11-10 13:00:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2018-11-10 13:00:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2018-11-10 13:00:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2018-11-10 13:00:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2018-11-10 13:00:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2018-11-10 13:00:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 13:00:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:00:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 13:00:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 13:00:28,687 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:00:28,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:00:28 BoogieIcfgContainer [2018-11-10 13:00:28,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:00:28,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:00:28,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:00:28,691 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:00:28,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:00:27" (1/3) ... [2018-11-10 13:00:28,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb4094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:00:28, skipping insertion in model container [2018-11-10 13:00:28,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:28" (2/3) ... [2018-11-10 13:00:28,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb4094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:00:28, skipping insertion in model container [2018-11-10 13:00:28,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:00:28" (3/3) ... [2018-11-10 13:00:28,694 INFO L112 eAbstractionObserver]: Analyzing ICFG rule60_list2_true-termination.c_true-unreach-call.i [2018-11-10 13:00:28,702 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:00:28,709 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:00:28,723 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:00:28,748 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:00:28,749 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:00:28,749 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:00:28,749 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:00:28,749 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:00:28,749 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:00:28,749 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:00:28,749 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:00:28,749 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:00:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-10 13:00:28,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:00:28,769 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:28,770 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:28,772 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:28,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:28,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1193672722, now seen corresponding path program 1 times [2018-11-10 13:00:28,778 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:28,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:28,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:28,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:28,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:28,942 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 13:00:28,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:00:28,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 13:00:28,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 13:00:28,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 13:00:28,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:00:28,959 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2018-11-10 13:00:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:29,034 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2018-11-10 13:00:29,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 13:00:29,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-10 13:00:29,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:29,043 INFO L225 Difference]: With dead ends: 87 [2018-11-10 13:00:29,043 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 13:00:29,046 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 13:00:29,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 13:00:29,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-10 13:00:29,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-10 13:00:29,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2018-11-10 13:00:29,080 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 16 [2018-11-10 13:00:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:29,080 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2018-11-10 13:00:29,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 13:00:29,080 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2018-11-10 13:00:29,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 13:00:29,082 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:29,082 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:29,082 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:29,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:29,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1007427758, now seen corresponding path program 1 times [2018-11-10 13:00:29,083 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:29,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:29,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:29,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:29,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:00:29,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:00:29,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:00:29,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:00:29,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:00:29,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:00:29,196 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 7 states. [2018-11-10 13:00:29,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:29,217 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2018-11-10 13:00:29,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 13:00:29,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-10 13:00:29,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:29,219 INFO L225 Difference]: With dead ends: 66 [2018-11-10 13:00:29,220 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 13:00:29,220 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:00:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 13:00:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-10 13:00:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 13:00:29,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-11-10 13:00:29,226 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 41 [2018-11-10 13:00:29,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:29,226 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-11-10 13:00:29,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:00:29,227 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-11-10 13:00:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 13:00:29,227 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:29,227 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:29,227 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:29,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:29,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1300830765, now seen corresponding path program 1 times [2018-11-10 13:00:29,228 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:29,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:29,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:29,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:29,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:00:29,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:00:29,326 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:00:29,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:29,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:00:29,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:00:29,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 13:00:29,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2018-11-10 13:00:29,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 13:00:29,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 13:00:29,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2018-11-10 13:00:29,637 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 18 states. [2018-11-10 13:00:30,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:30,123 INFO L93 Difference]: Finished difference Result 97 states and 113 transitions. [2018-11-10 13:00:30,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-10 13:00:30,123 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 41 [2018-11-10 13:00:30,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:30,125 INFO L225 Difference]: With dead ends: 97 [2018-11-10 13:00:30,125 INFO L226 Difference]: Without dead ends: 63 [2018-11-10 13:00:30,126 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=987, Unknown=0, NotChecked=0, Total=1190 [2018-11-10 13:00:30,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-10 13:00:30,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2018-11-10 13:00:30,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-10 13:00:30,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2018-11-10 13:00:30,133 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 41 [2018-11-10 13:00:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:30,133 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2018-11-10 13:00:30,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 13:00:30,134 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2018-11-10 13:00:30,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 13:00:30,134 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:30,134 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:30,135 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:30,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:30,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1638064360, now seen corresponding path program 1 times [2018-11-10 13:00:30,135 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:30,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:30,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:30,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:30,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:00:30,319 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:00:30,319 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:00:30,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:30,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:00:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:00:30,468 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:00:30,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 24 [2018-11-10 13:00:30,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-10 13:00:30,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-10 13:00:30,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2018-11-10 13:00:30,470 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 24 states. [2018-11-10 13:00:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:30,864 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2018-11-10 13:00:30,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-10 13:00:30,864 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 48 [2018-11-10 13:00:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:30,865 INFO L225 Difference]: With dead ends: 65 [2018-11-10 13:00:30,865 INFO L226 Difference]: Without dead ends: 58 [2018-11-10 13:00:30,866 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=1118, Unknown=0, NotChecked=0, Total=1260 [2018-11-10 13:00:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-10 13:00:30,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2018-11-10 13:00:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-10 13:00:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2018-11-10 13:00:30,872 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 48 [2018-11-10 13:00:30,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:30,872 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2018-11-10 13:00:30,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-10 13:00:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2018-11-10 13:00:30,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 13:00:30,873 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:30,873 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:30,873 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:30,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:30,873 INFO L82 PathProgramCache]: Analyzing trace with hash 828717734, now seen corresponding path program 1 times [2018-11-10 13:00:30,874 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:30,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:30,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:30,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:30,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:00:30,994 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:00:30,995 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:00:31,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:31,032 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:00:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:00:31,242 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:00:31,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2018-11-10 13:00:31,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-10 13:00:31,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-10 13:00:31,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2018-11-10 13:00:31,243 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 25 states. [2018-11-10 13:00:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:31,630 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2018-11-10 13:00:31,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-10 13:00:31,630 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 48 [2018-11-10 13:00:31,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:31,631 INFO L225 Difference]: With dead ends: 68 [2018-11-10 13:00:31,631 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 13:00:31,632 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=1116, Unknown=0, NotChecked=0, Total=1332 [2018-11-10 13:00:31,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 13:00:31,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2018-11-10 13:00:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-10 13:00:31,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2018-11-10 13:00:31,639 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 48 [2018-11-10 13:00:31,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:31,639 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2018-11-10 13:00:31,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-10 13:00:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2018-11-10 13:00:31,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-10 13:00:31,640 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:31,641 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:31,641 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:31,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:31,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1371552138, now seen corresponding path program 1 times [2018-11-10 13:00:31,641 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:31,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:31,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:31,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:31,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 13:00:31,787 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:00:31,787 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:00:31,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:31,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:00:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 13:00:32,099 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:00:32,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20] total 32 [2018-11-10 13:00:32,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-11-10 13:00:32,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-11-10 13:00:32,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=912, Unknown=0, NotChecked=0, Total=992 [2018-11-10 13:00:32,100 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 32 states. [2018-11-10 13:00:32,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:32,817 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-11-10 13:00:32,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-10 13:00:32,819 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 60 [2018-11-10 13:00:32,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:32,819 INFO L225 Difference]: With dead ends: 77 [2018-11-10 13:00:32,819 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 13:00:32,820 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=371, Invalid=2821, Unknown=0, NotChecked=0, Total=3192 [2018-11-10 13:00:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 13:00:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2018-11-10 13:00:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-10 13:00:32,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-11-10 13:00:32,825 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 60 [2018-11-10 13:00:32,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:32,825 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-11-10 13:00:32,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-11-10 13:00:32,826 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-11-10 13:00:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-10 13:00:32,826 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:32,827 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:32,827 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:32,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:32,827 INFO L82 PathProgramCache]: Analyzing trace with hash 2114068532, now seen corresponding path program 1 times [2018-11-10 13:00:32,827 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:32,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:32,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:32,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:32,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 13:00:32,982 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:00:32,982 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:00:32,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:33,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:00:33,114 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 13:00:33,131 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:00:33,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 26 [2018-11-10 13:00:33,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-10 13:00:33,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-10 13:00:33,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2018-11-10 13:00:33,132 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 26 states. [2018-11-10 13:00:33,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:33,524 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-11-10 13:00:33,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-10 13:00:33,524 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 60 [2018-11-10 13:00:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:33,525 INFO L225 Difference]: With dead ends: 64 [2018-11-10 13:00:33,525 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 13:00:33,525 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=1516, Unknown=0, NotChecked=0, Total=1722 [2018-11-10 13:00:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 13:00:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-10 13:00:33,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-10 13:00:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2018-11-10 13:00:33,529 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 60 [2018-11-10 13:00:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:33,529 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2018-11-10 13:00:33,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-10 13:00:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2018-11-10 13:00:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-10 13:00:33,530 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:33,530 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:33,530 INFO L424 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:33,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:33,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1527262518, now seen corresponding path program 1 times [2018-11-10 13:00:33,531 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:00:33,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:00:33,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:33,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:33,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:33,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-10 13:00:33,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:00:33,636 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:00:33,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:33,686 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:00:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-10 13:00:33,798 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:00:33,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-10 13:00:33,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:00:33,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:00:33,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:00:33,799 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 9 states. [2018-11-10 13:00:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:33,917 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2018-11-10 13:00:33,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 13:00:33,917 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 60 [2018-11-10 13:00:33,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:33,917 INFO L225 Difference]: With dead ends: 50 [2018-11-10 13:00:33,917 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:00:33,918 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 54 SyntacticMatches, 8 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-11-10 13:00:33,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:00:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:00:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:00:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:00:33,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2018-11-10 13:00:33,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:33,919 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:00:33,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:00:33,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:00:33,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:00:33,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:00:33,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 13:00:33,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 13:00:33,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 13:00:34,485 INFO L425 ceAbstractionStarter]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2018-11-10 13:00:34,485 INFO L421 ceAbstractionStarter]: At program point L879(line 879) the Hoare annotation is: (let ((.cse1 (not (= 8 |my_malloc_#in~size|))) (.cse0 (= 8 my_malloc_~size))) (and (or (and (<= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset) .cse0) (< |old(~guard_malloc_counter~0.offset)| 1) .cse1 (< 0 ~elem~0.offset)) (or (or (not (= ~elem~0.offset 0)) (or (< |old(~guard_malloc_counter~0.offset)| 0) .cse1)) (and (= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset) .cse0)))) [2018-11-10 13:00:34,485 INFO L425 ceAbstractionStarter]: For program point L879-1(line 879) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L421 ceAbstractionStarter]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (let ((.cse0 (not (= 8 |my_malloc_#in~size|)))) (and (or (<= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset) (< |old(~guard_malloc_counter~0.offset)| 1) .cse0 (< 0 ~elem~0.offset)) (or (or (not (= ~elem~0.offset 0)) (or (< |old(~guard_malloc_counter~0.offset)| 0) .cse0)) (= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset)))) [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line 900) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~elem~0.offset |old(~elem~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset)) [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point L900(line 900) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point L900-1(line 900) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point L900-2(line 900) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point L896(lines 896 897) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L425 ceAbstractionStarter]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2018-11-10 13:00:34,486 INFO L421 ceAbstractionStarter]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (let ((.cse0 (< ~guard_malloc_counter~0.offset 1))) (and (or .cse0 (= |old(~elem~0.offset)| ~elem~0.offset)) (or (= |old(~elem~0.base)| ~elem~0.base) .cse0))) [2018-11-10 13:00:34,487 INFO L421 ceAbstractionStarter]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (let ((.cse1 (= |old(~elem~0.base)| ~elem~0.base)) (.cse0 (< ~guard_malloc_counter~0.offset 1))) (and (or (not (= |old(~elem~0.offset)| 0)) .cse0 (< |list_add_#in~new.offset| 2) .cse1) (or (and (= ~elem~0.offset |old(~elem~0.offset)|) .cse1) .cse0 (< |old(~elem~0.offset)| (+ |list_add_#in~new.offset| 1))) (or (= |old(~elem~0.offset)| ~elem~0.offset) .cse0 (< |list_add_#in~new.offset| (+ |old(~elem~0.offset)| 1))))) [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point L891(lines 891 892) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point L890(line 890) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point L891-2(lines 889 893) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L421 ceAbstractionStarter]: At program point L890-2(line 890) the Hoare annotation is: (let ((.cse0 (< ~guard_malloc_counter~0.offset 1))) (and (or .cse0 (< |list_add_#in~new.offset| (+ |old(~elem~0.offset)| 1))) (or .cse0 (< |old(~elem~0.offset)| (+ |list_add_#in~new.offset| 1))))) [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point L890-3(line 890) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L428 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2018-11-10 13:00:34,487 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:00:34,487 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~elem~0.offset) (<= 0 ~guard_malloc_counter~0.offset)) [2018-11-10 13:00:34,488 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:00:34,488 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:00:34,488 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.offset |old(~elem~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset))) [2018-11-10 13:00:34,488 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2018-11-10 13:00:34,488 INFO L421 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: (let ((.cse0 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse1 (<= 2 main_~dev2~0.offset))) (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= |old(~elem~0.offset)| 0)) (and (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) .cse0 .cse1 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset)) (and .cse0 .cse1 (<= ~elem~0.offset 0)))) [2018-11-10 13:00:34,488 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2018-11-10 13:00:34,488 INFO L421 ceAbstractionStarter]: At program point L908(line 908) the Hoare annotation is: (let ((.cse0 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset)) (.cse1 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset)) (.cse2 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse3 (<= 2 main_~dev2~0.offset))) (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= |old(~elem~0.offset)| 0)) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset)) (and (= ~elem~0.offset main_~dev2~0.offset) (= main_~dev2~0.base ~elem~0.base) .cse0 .cse1 .cse2 .cse3) (and .cse2 .cse3 (<= ~elem~0.offset 0)))) [2018-11-10 13:00:34,488 INFO L421 ceAbstractionStarter]: At program point L907(line 907) the Hoare annotation is: (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= |old(~elem~0.offset)| 0)) (and (<= 1 main_~dev1~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (= ~elem~0.offset |old(~elem~0.offset)|))) [2018-11-10 13:00:34,488 INFO L425 ceAbstractionStarter]: For program point L906(lines 906 915) no Hoare annotation was computed. [2018-11-10 13:00:34,488 INFO L421 ceAbstractionStarter]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse1 (+ main_~dev1~0.offset 1)) (.cse0 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset)) (.cse2 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset))) (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.offset main_~dev2~0.offset) (= main_~dev2~0.base ~elem~0.base) .cse0 (<= .cse1 ~elem~0.offset) .cse2 (<= 2 main_~dev2~0.offset)) (and (<= 1 main_~dev1~0.offset) (<= .cse1 main_~dev2~0.offset) .cse0 .cse2 (= 0 ~elem~0.offset)))) [2018-11-10 13:00:34,489 INFO L421 ceAbstractionStarter]: At program point L905(line 905) the Hoare annotation is: (let ((.cse0 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset))) (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= |old(~elem~0.offset)| 0)) (and (<= 1 main_~dev1~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) .cse0 (= ~elem~0.offset |old(~elem~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base)) (and (= main_~dev1~0.base 0) (= 0 main_~dev1~0.offset) .cse0 (<= ~elem~0.offset 0)))) [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2018-11-10 13:00:34,489 INFO L421 ceAbstractionStarter]: At program point L904(line 904) the Hoare annotation is: (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.offset |old(~elem~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset))) [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point L905-1(line 905) no Hoare annotation was computed. [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point L904-1(line 904) no Hoare annotation was computed. [2018-11-10 13:00:34,489 INFO L421 ceAbstractionStarter]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (or (not (= ~elem~0.offset 0)) (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= 8 |__getMemory_#in~size|)))) (= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset)) [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point L873(lines 873 874) no Hoare annotation was computed. [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point L871(line 871) no Hoare annotation was computed. [2018-11-10 13:00:34,489 INFO L421 ceAbstractionStarter]: At program point L871-2(line 871) the Hoare annotation is: (or (not (= ~elem~0.offset 0)) (or (< |old(~guard_malloc_counter~0.offset)| 0) (not (= 8 |__getMemory_#in~size|)))) [2018-11-10 13:00:34,489 INFO L425 ceAbstractionStarter]: For program point L871-3(line 871) no Hoare annotation was computed. [2018-11-10 13:00:34,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:00:34 BoogieIcfgContainer [2018-11-10 13:00:34,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:00:34,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:00:34,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:00:34,493 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:00:34,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:00:28" (3/4) ... [2018-11-10 13:00:34,496 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:00:34,501 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure my_malloc [2018-11-10 13:00:34,501 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:00:34,501 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2018-11-10 13:00:34,501 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2018-11-10 13:00:34,501 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2018-11-10 13:00:34,502 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:00:34,502 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __getMemory [2018-11-10 13:00:34,505 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-10 13:00:34,505 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 13:00:34,505 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:00:34,539 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7a21fa72-27d7-45cc-a901-4c890bfef09f/bin-2019/uautomizer/witness.graphml [2018-11-10 13:00:34,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:00:34,540 INFO L168 Benchmark]: Toolchain (without parser) took 6613.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.1 MB). Free memory was 957.6 MB in the beginning and 973.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 191.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:34,541 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:00:34,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.69 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 929.7 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:34,541 INFO L168 Benchmark]: Boogie Preprocessor took 80.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 929.7 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:34,541 INFO L168 Benchmark]: RCFGBuilder took 409.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:34,541 INFO L168 Benchmark]: TraceAbstraction took 5803.85 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 95.4 MB). Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 85.6 MB). Peak memory consumption was 181.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:34,542 INFO L168 Benchmark]: Witness Printer took 45.86 ms. Allocated memory is still 1.2 GB. Free memory is still 973.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:00:34,543 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.69 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 929.7 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 929.7 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 409.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5803.85 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 95.4 MB). Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 85.6 MB). Peak memory consumption was 181.1 MB. Max. memory is 11.5 GB. * Witness Printer took 45.86 ms. Allocated memory is still 1.2 GB. Free memory is still 973.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 50 locations, 1 error locations. SAFE Result, 5.7s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 308 SDtfs, 435 SDslu, 1572 SDs, 0 SdLazy, 3804 SolverSat, 440 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 521 GetRequests, 290 SyntacticMatches, 13 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1184 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=4, 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, 8 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 71 PreInvPairs, 82 NumberOfFragments, 491 HoareAnnotationTreeSize, 71 FomulaSimplifications, 677 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 897 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 691 NumberOfCodeBlocks, 691 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 677 ConstructedInterpolants, 0 QuantifiedInterpolants, 115080 SizeOfPredicates, 41 NumberOfNonLiveVariables, 1627 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 136/211 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...