./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/StructInitialization2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/StructInitialization2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40aebfbfcf1ace3ae19699b445fb033c37125741 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 11:30:18,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:30:18,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:30:18,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:30:18,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:30:18,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:30:18,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:30:18,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:30:18,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:30:18,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:30:18,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:30:18,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:30:18,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:30:18,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:30:18,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:30:18,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:30:18,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:30:18,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:30:18,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:30:18,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:30:18,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:30:18,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:30:18,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:30:18,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:30:18,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:30:18,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:30:18,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:30:18,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:30:18,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:30:18,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:30:18,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:30:18,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:30:18,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:30:18,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:30:18,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:30:18,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:30:18,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:30:18,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:30:18,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:30:18,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:30:18,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:30:18,338 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 11:30:18,361 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:30:18,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:30:18,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:30:18,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:30:18,363 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:30:18,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:30:18,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:30:18,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:30:18,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:30:18,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:30:18,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:30:18,364 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 11:30:18,364 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 11:30:18,364 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 11:30:18,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:30:18,365 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:30:18,365 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:30:18,365 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:30:18,365 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:30:18,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:30:18,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:30:18,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:30:18,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:30:18,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:30:18,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:30:18,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:30:18,367 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:30:18,367 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:30:18,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:30:18,368 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 40aebfbfcf1ace3ae19699b445fb033c37125741 [2019-11-20 11:30:18,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:30:18,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:30:18,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:30:18,551 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:30:18,552 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:30:18,552 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/StructInitialization2.c [2019-11-20 11:30:18,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/data/f4d6d8ec4/361e4870037b4fc39b06a7af5c9eba17/FLAGbbd68ec9e [2019-11-20 11:30:19,051 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:30:19,051 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/sv-benchmarks/c/ldv-memsafety/StructInitialization2.c [2019-11-20 11:30:19,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/data/f4d6d8ec4/361e4870037b4fc39b06a7af5c9eba17/FLAGbbd68ec9e [2019-11-20 11:30:19,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/data/f4d6d8ec4/361e4870037b4fc39b06a7af5c9eba17 [2019-11-20 11:30:19,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:30:19,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 11:30:19,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:30:19,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:30:19,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:30:19,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b3a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19, skipping insertion in model container [2019-11-20 11:30:19,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,510 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:30:19,539 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:30:19,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:30:19,798 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:30:19,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:30:19,872 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:30:19,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19 WrapperNode [2019-11-20 11:30:19,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:30:19,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:30:19,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:30:19,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:30:19,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... [2019-11-20 11:30:19,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:30:19,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:30:19,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:30:19,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:30:19,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/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 [2019-11-20 11:30:20,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 11:30:20,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:30:20,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 11:30:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:30:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 11:30:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:30:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 11:30:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-20 11:30:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 11:30:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-20 11:30:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-20 11:30:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 11:30:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:30:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 11:30:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-20 11:30:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:30:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:30:22,622 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:30:22,623 INFO L285 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-20 11:30:22,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:22 BoogieIcfgContainer [2019-11-20 11:30:22,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:30:22,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:30:22,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:30:22,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:30:22,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:19" (1/3) ... [2019-11-20 11:30:22,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383f5428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:22, skipping insertion in model container [2019-11-20 11:30:22,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:19" (2/3) ... [2019-11-20 11:30:22,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383f5428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:22, skipping insertion in model container [2019-11-20 11:30:22,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:22" (3/3) ... [2019-11-20 11:30:22,632 INFO L109 eAbstractionObserver]: Analyzing ICFG StructInitialization2.c [2019-11-20 11:30:22,642 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:30:22,650 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 81 error locations. [2019-11-20 11:30:22,661 INFO L249 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2019-11-20 11:30:22,678 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:30:22,678 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 11:30:22,678 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:30:22,678 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:30:22,679 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:30:22,679 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:30:22,679 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:30:22,679 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:30:22,702 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2019-11-20 11:30:22,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 11:30:22,713 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:30:22,714 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 11:30:22,714 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr80ENSURES_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr70REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr78REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr76REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr71REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr79REQUIRES_VIOLATION, mainErr77REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2019-11-20 11:30:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:30:22,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1202819620, now seen corresponding path program 1 times [2019-11-20 11:30:22,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:30:22,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1923599647] [2019-11-20 11:30:22,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:30:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:30:23,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:30:23,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:30:23,547 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2019-11-20 11:30:23,548 INFO L343 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2019-11-20 11:30:23,549 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2019-11-20 11:30:23,550 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:30:23,635 INFO L567 ElimStorePlain]: treesize reduction 10, result has 79.6 percent of original size [2019-11-20 11:30:23,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-20 11:30:23,650 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-20 11:30:23,651 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:18, output treesize:39 [2019-11-20 11:30:23,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-20 11:30:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:30:23,695 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:30:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:30:23,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1923599647] [2019-11-20 11:30:23,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:30:23,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:30:23,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131723533] [2019-11-20 11:30:23,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:30:23,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:30:23,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:30:23,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:30:23,771 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 3 states. [2019-11-20 11:30:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:30:24,323 INFO L93 Difference]: Finished difference Result 118 states and 117 transitions. [2019-11-20 11:30:24,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:30:24,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 11:30:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:30:24,337 INFO L225 Difference]: With dead ends: 118 [2019-11-20 11:30:24,338 INFO L226 Difference]: Without dead ends: 113 [2019-11-20 11:30:24,340 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:30:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-11-20 11:30:24,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-11-20 11:30:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-20 11:30:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 112 transitions. [2019-11-20 11:30:24,387 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 112 transitions. Word has length 6 [2019-11-20 11:30:24,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:30:24,387 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 112 transitions. [2019-11-20 11:30:24,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:30:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 112 transitions. [2019-11-20 11:30:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 11:30:24,389 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:30:24,389 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 11:30:24,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:30:24,598 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr80ENSURES_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr70REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr78REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr76REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr71REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr79REQUIRES_VIOLATION, mainErr77REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2019-11-20 11:30:24,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:30:24,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1202819621, now seen corresponding path program 1 times [2019-11-20 11:30:24,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:30:24,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [723938674] [2019-11-20 11:30:24,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:30:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:30:25,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:30:25,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:30:25,174 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_93|], 4=[|v_#valid_100|]} [2019-11-20 11:30:25,194 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 11:30:25,202 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 11:30:25,205 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 11:30:25,332 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2019-11-20 11:30:25,332 INFO L343 Elim1Store]: treesize reduction 16, result has 70.9 percent of original size [2019-11-20 11:30:25,333 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 49 [2019-11-20 11:30:25,334 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:30:25,445 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-20 11:30:25,446 INFO L567 ElimStorePlain]: treesize reduction 20, result has 71.0 percent of original size [2019-11-20 11:30:25,459 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 11:30:25,466 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2019-11-20 11:30:25,467 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-11-20 11:30:25,595 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-20 11:30:25,595 INFO L567 ElimStorePlain]: treesize reduction 17, result has 70.7 percent of original size [2019-11-20 11:30:25,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,607 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-20 11:30:25,608 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:36, output treesize:40 [2019-11-20 11:30:25,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:30:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:30:25,757 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:30:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:30:25,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723938674] [2019-11-20 11:30:25,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:30:25,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-20 11:30:25,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132779381] [2019-11-20 11:30:25,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:30:25,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:30:25,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:30:25,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:30:25,934 INFO L87 Difference]: Start difference. First operand 113 states and 112 transitions. Second operand 4 states. [2019-11-20 11:30:26,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:30:26,315 INFO L93 Difference]: Finished difference Result 73 states and 72 transitions. [2019-11-20 11:30:26,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:30:26,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-20 11:30:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:30:26,318 INFO L225 Difference]: With dead ends: 73 [2019-11-20 11:30:26,318 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:30:26,319 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:30:26,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:30:26,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:30:26,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:30:26,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:30:26,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-11-20 11:30:26,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:30:26,320 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:30:26,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:30:26,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:30:26,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:30:26,521 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:30:26,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:30:26 BoogieIcfgContainer [2019-11-20 11:30:26,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:30:26,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:30:26,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:30:26,528 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:30:26,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:22" (3/4) ... [2019-11-20 11:30:26,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:30:26,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-20 11:30:26,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-20 11:30:26,563 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 107 nodes and edges [2019-11-20 11:30:26,564 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-11-20 11:30:26,565 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-11-20 11:30:26,566 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 11:30:26,566 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 11:30:26,567 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 11:30:26,630 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3912f101-10f3-4423-aa64-0de892e4d6da/bin/uautomizer/witness.graphml [2019-11-20 11:30:26,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:30:26,631 INFO L168 Benchmark]: Toolchain (without parser) took 7137.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.8 MB in the beginning and 858.0 MB in the end (delta: 94.7 MB). Peak memory consumption was 244.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:30:26,632 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:30:26,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:30:26,633 INFO L168 Benchmark]: Boogie Preprocessor took 72.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:30:26,633 INFO L168 Benchmark]: RCFGBuilder took 2677.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:30:26,634 INFO L168 Benchmark]: TraceAbstraction took 3901.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 864.7 MB in the end (delta: 199.3 MB). Peak memory consumption was 199.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:30:26,634 INFO L168 Benchmark]: Witness Printer took 102.88 ms. Allocated memory is still 1.2 GB. Free memory was 864.7 MB in the beginning and 858.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:30:26,636 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 378.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2677.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3901.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 864.7 MB in the end (delta: 199.3 MB). Peak memory consumption was 199.3 MB. Max. memory is 11.5 GB. * Witness Printer took 102.88 ms. Allocated memory is still 1.2 GB. Free memory was 864.7 MB in the beginning and 858.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 128]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 129]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 81 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 159 locations, 81 error locations. Result: SAFE, OverallTime: 3.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 246 SDslu, 2 SDs, 0 SdLazy, 119 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 4 QuantifiedInterpolants, 1540 SizeOfPredicates, 9 NumberOfNonLiveVariables, 524 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...