./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/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 eae1dfb46ee1f740f68b388e2be7b7a6c6f089e3 ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:42:50,966 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:42:50,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:42:50,977 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:42:50,977 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:42:50,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:42:50,978 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:42:50,979 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:42:50,981 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:42:50,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:42:50,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:42:50,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:42:50,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:42:50,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:42:50,984 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:42:50,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:42:50,985 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:42:50,987 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:42:50,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:42:50,989 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:42:50,990 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:42:50,991 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:42:50,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:42:50,993 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:42:50,993 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:42:50,993 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:42:50,994 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:42:50,995 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:42:50,995 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:42:50,996 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:42:50,996 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:42:50,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:42:50,997 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:42:50,997 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:42:50,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:42:50,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:42:50,998 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 11:42:51,008 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:42:51,009 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:42:51,009 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:42:51,009 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:42:51,010 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:42:51,010 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:42:51,010 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:42:51,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:42:51,010 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 11:42:51,011 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:42:51,012 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:42:51,012 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:42:51,012 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:42:51,012 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:42:51,012 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:42:51,012 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:42:51,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:42:51,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:42:51,013 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:42:51,013 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:42:51,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:42:51,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> eae1dfb46ee1f740f68b388e2be7b7a6c6f089e3 [2018-11-28 11:42:51,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:42:51,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:42:51,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:42:51,046 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:42:51,046 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:42:51,047 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i [2018-11-28 11:42:51,084 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/data/9ae409b0e/ba288d92dd8e49029891cd481504e420/FLAGf8f63b5d3 [2018-11-28 11:42:51,492 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:42:51,493 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/sv-benchmarks/c/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i [2018-11-28 11:42:51,496 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/data/9ae409b0e/ba288d92dd8e49029891cd481504e420/FLAGf8f63b5d3 [2018-11-28 11:42:51,506 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/data/9ae409b0e/ba288d92dd8e49029891cd481504e420 [2018-11-28 11:42:51,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:42:51,509 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 11:42:51,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:42:51,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:42:51,513 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:42:51,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75db7e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51, skipping insertion in model container [2018-11-28 11:42:51,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:42:51,536 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:42:51,653 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:42:51,659 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:42:51,670 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:42:51,680 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:42:51,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51 WrapperNode [2018-11-28 11:42:51,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:42:51,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:42:51,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:42:51,681 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:42:51,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... [2018-11-28 11:42:51,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:42:51,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:42:51,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:42:51,701 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:42:51,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:42:51,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:42:51,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:42:51,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:42:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-11-28 11:42:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 11:42:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 11:42:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:42:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:42:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:42:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:42:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:42:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:42:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:42:51,948 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:42:51,949 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 11:42:51,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:51 BoogieIcfgContainer [2018-11-28 11:42:51,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:42:51,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:42:51,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:42:51,951 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:42:51,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:42:51" (1/3) ... [2018-11-28 11:42:51,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a35af11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:42:51, skipping insertion in model container [2018-11-28 11:42:51,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:51" (2/3) ... [2018-11-28 11:42:51,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a35af11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:42:51, skipping insertion in model container [2018-11-28 11:42:51,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:51" (3/3) ... [2018-11-28 11:42:51,954 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-1_false-valid-deref.i [2018-11-28 11:42:51,959 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:42:51,964 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2018-11-28 11:42:51,974 INFO L257 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2018-11-28 11:42:51,988 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:42:51,989 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:42:51,989 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 11:42:51,989 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:42:51,989 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:42:51,989 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:42:51,989 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:42:51,989 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:42:51,989 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:42:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-28 11:42:52,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 11:42:52,010 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:52,010 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:42:52,012 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2018-11-28 11:42:52,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:52,015 INFO L82 PathProgramCache]: Analyzing trace with hash 476905903, now seen corresponding path program 1 times [2018-11-28 11:42:52,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:52,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:52,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:42:52,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:42:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:42:52,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:42:52,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:42:52,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:42:52,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:42:52,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:42:52,129 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2018-11-28 11:42:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:42:52,246 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2018-11-28 11:42:52,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:42:52,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 11:42:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:42:52,254 INFO L225 Difference]: With dead ends: 59 [2018-11-28 11:42:52,254 INFO L226 Difference]: Without dead ends: 56 [2018-11-28 11:42:52,255 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:42:52,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-28 11:42:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2018-11-28 11:42:52,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 11:42:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-11-28 11:42:52,286 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 7 [2018-11-28 11:42:52,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:42:52,287 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-11-28 11:42:52,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:42:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-11-28 11:42:52,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 11:42:52,287 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:52,287 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:42:52,289 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2018-11-28 11:42:52,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash 476905904, now seen corresponding path program 1 times [2018-11-28 11:42:52,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:52,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:52,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:42:52,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:42:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:42:52,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:42:52,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:42:52,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:42:52,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:42:52,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:42:52,344 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 3 states. [2018-11-28 11:42:52,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:42:52,368 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-28 11:42:52,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:42:52,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 11:42:52,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:42:52,369 INFO L225 Difference]: With dead ends: 22 [2018-11-28 11:42:52,369 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 11:42:52,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:42:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 11:42:52,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 11:42:52,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 11:42:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-11-28 11:42:52,371 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2018-11-28 11:42:52,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:42:52,371 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-11-28 11:42:52,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:42:52,371 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-28 11:42:52,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 11:42:52,372 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:52,372 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:42:52,372 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2018-11-28 11:42:52,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:52,373 INFO L82 PathProgramCache]: Analyzing trace with hash 2113686050, now seen corresponding path program 1 times [2018-11-28 11:42:52,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:52,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:52,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:42:52,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:42:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:42:52,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:42:52,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:42:52,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 11:42:52,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:42:52,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:42:52,425 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2018-11-28 11:42:52,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:42:52,447 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-28 11:42:52,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 11:42:52,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 11:42:52,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:42:52,448 INFO L225 Difference]: With dead ends: 18 [2018-11-28 11:42:52,448 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 11:42:52,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:42:52,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 11:42:52,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 11:42:52,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 11:42:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-28 11:42:52,449 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2018-11-28 11:42:52,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:42:52,450 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-28 11:42:52,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 11:42:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-28 11:42:52,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 11:42:52,450 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:42:52,450 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:42:52,451 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2018-11-28 11:42:52,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:42:52,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1105485152, now seen corresponding path program 1 times [2018-11-28 11:42:52,451 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:42:52,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:42:52,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:42:52,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:42:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:42:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:42:52,488 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:42:52,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:42:52 BoogieIcfgContainer [2018-11-28 11:42:52,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:42:52,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:42:52,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:42:52,503 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:42:52,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:51" (3/4) ... [2018-11-28 11:42:52,505 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 11:42:52,533 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f0dc3e87-a5f2-4b93-aa7b-4ef2c3905173/bin-2019/uautomizer/witness.graphml [2018-11-28 11:42:52,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:42:52,533 INFO L168 Benchmark]: Toolchain (without parser) took 1025.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -76.8 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:42:52,535 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:42:52,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.62 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:42:52,535 INFO L168 Benchmark]: Boogie Preprocessor took 20.26 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:42:52,535 INFO L168 Benchmark]: RCFGBuilder took 247.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:42:52,536 INFO L168 Benchmark]: TraceAbstraction took 552.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:42:52,536 INFO L168 Benchmark]: Witness Printer took 30.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:42:52,538 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.62 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.26 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 247.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 552.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 11.5 GB. * Witness Printer took 30.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L23] struct A *p; [L24] p = malloc(2) VAL [malloc(2)={4:0}, p={4:0}] [L25] p->a = 1 VAL [malloc(2)={4:0}, p={4:0}] [L26] EXPR p->a VAL [malloc(2)={4:0}, p={4:0}, p->a=1] [L26] COND FALSE !(p->a != 1) [L29] p->b = 2 VAL [malloc(2)={4:0}, p={4:0}] [L30] EXPR p->b VAL [malloc(2)={4:0}, p={4:0}, p->b=2] [L30] COND FALSE !(p->b != 2) [L33] p->c = 3 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 27 error locations. UNSAFE Result, 0.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 57 SDslu, 27 SDs, 0 SdLazy, 63 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...