./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/StructInitialization.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_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/StructInitialization.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/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 09aab7ee021274328a236afeda27749aba561ee0 ............................................................................................................................................................................................................................................................ 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 04:12:58,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:12:58,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:12:58,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:12:58,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:12:58,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:12:58,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:12:58,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:12:58,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:12:58,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:12:58,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:12:58,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:12:58,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:12:58,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:12:58,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:12:58,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:12:58,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:12:58,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:12:58,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:12:58,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:12:58,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:12:58,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:12:58,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:12:58,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:12:58,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:12:58,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:12:58,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:12:58,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:12:58,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:12:58,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:12:58,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:12:58,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:12:58,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:12:58,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:12:58,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:12:58,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:12:58,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:12:58,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:12:58,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:12:58,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:12:58,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:12:58,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 04:12:58,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:12:58,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:12:58,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:12:58,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:12:58,174 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:12:58,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:12:58,175 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:12:58,175 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:12:58,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:12:58,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:12:58,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:12:58,176 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 04:12:58,176 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 04:12:58,177 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 04:12:58,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:12:58,177 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:12:58,177 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:12:58,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:12:58,178 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:12:58,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:12:58,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:12:58,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:12:58,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:12:58,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:12:58,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:12:58,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:12:58,181 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:12:58,181 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:12:58,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:12:58,182 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_3d78a70a-8723-412e-8e51-837e5a4dea45/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 -> 09aab7ee021274328a236afeda27749aba561ee0 [2019-11-20 04:12:58,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:12:58,370 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:12:58,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:12:58,375 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:12:58,375 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:12:58,376 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2019-11-20 04:12:58,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/data/9ed04f72b/d6a8e88c88ea4cae9e13125785815f73/FLAGbde4d02cd [2019-11-20 04:12:58,844 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:12:58,844 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2019-11-20 04:12:58,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/data/9ed04f72b/d6a8e88c88ea4cae9e13125785815f73/FLAGbde4d02cd [2019-11-20 04:12:59,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/data/9ed04f72b/d6a8e88c88ea4cae9e13125785815f73 [2019-11-20 04:12:59,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:12:59,268 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 04:12:59,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:12:59,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:12:59,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:12:59,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d510fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59, skipping insertion in model container [2019-11-20 04:12:59,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,285 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:12:59,307 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:12:59,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:12:59,676 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:12:59,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:12:59,733 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:12:59,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59 WrapperNode [2019-11-20 04:12:59,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:12:59,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:12:59,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:12:59,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:12:59,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... [2019-11-20 04:12:59,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:12:59,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:12:59,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:12:59,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:12:59,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/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 04:12:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 04:12:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:12:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 04:12:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:12:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 04:12:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 04:12:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:12:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:13:00,092 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:13:00,093 INFO L285 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-20 04:13:00,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:13:00 BoogieIcfgContainer [2019-11-20 04:13:00,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:13:00,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:13:00,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:13:00,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:13:00,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:12:59" (1/3) ... [2019-11-20 04:13:00,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8f4a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:13:00, skipping insertion in model container [2019-11-20 04:13:00,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:12:59" (2/3) ... [2019-11-20 04:13:00,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8f4a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:13:00, skipping insertion in model container [2019-11-20 04:13:00,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:13:00" (3/3) ... [2019-11-20 04:13:00,102 INFO L109 eAbstractionObserver]: Analyzing ICFG StructInitialization.c [2019-11-20 04:13:00,110 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:13:00,115 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:13:00,126 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:13:00,149 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:13:00,149 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 04:13:00,150 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:13:00,150 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:13:00,150 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:13:00,150 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:13:00,150 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:13:00,150 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:13:00,164 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 04:13:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 04:13:00,173 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:00,173 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:00,176 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-20 04:13:00,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:00,181 INFO L82 PathProgramCache]: Analyzing trace with hash 254106603, now seen corresponding path program 1 times [2019-11-20 04:13:00,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:13:00,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1279337885] [2019-11-20 04:13:00,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/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 04:13:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:00,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 04:13:00,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:00,378 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 04:13:00,378 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:13:00,400 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 04:13:00,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1279337885] [2019-11-20 04:13:00,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:00,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2019-11-20 04:13:00,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854274095] [2019-11-20 04:13:00,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:13:00,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:13:00,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:13:00,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:13:00,419 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-20 04:13:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:00,433 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-11-20 04:13:00,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:13:00,434 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-20 04:13:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:00,439 INFO L225 Difference]: With dead ends: 10 [2019-11-20 04:13:00,439 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:13:00,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:13:00,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:13:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:13:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:13:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:13:00,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-20 04:13:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:00,463 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:13:00,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:13:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:13:00,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:13:00,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:13:00,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:13:00 BoogieIcfgContainer [2019-11-20 04:13:00,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:13:00,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:13:00,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:13:00,672 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:13:00,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:13:00" (3/4) ... [2019-11-20 04:13:00,676 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:13:00,684 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-20 04:13:00,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-20 04:13:00,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-11-20 04:13:00,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 04:13:00,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 04:13:00,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 04:13:00,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:13:00,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:13:00,729 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3d78a70a-8723-412e-8e51-837e5a4dea45/bin/uautomizer/witness.graphml [2019-11-20 04:13:00,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:13:00,731 INFO L168 Benchmark]: Toolchain (without parser) took 1463.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -124.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:13:00,732 INFO L168 Benchmark]: CDTParser took 0.21 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 04:13:00,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:13:00,733 INFO L168 Benchmark]: Boogie Preprocessor took 33.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:13:00,734 INFO L168 Benchmark]: RCFGBuilder took 326.51 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:13:00,734 INFO L168 Benchmark]: TraceAbstraction took 575.79 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:13:00,734 INFO L168 Benchmark]: Witness Printer took 58.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:13:00,736 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 464.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 326.51 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 575.79 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Witness Printer took 58.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...