./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety-ext3/scopes4_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/memsafety-ext3/scopes4_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 87dcbb1d4539995e5aba39e6053775ca0fac811e ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 19:54:43,466 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 19:54:43,468 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 19:54:43,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 19:54:43,481 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 19:54:43,482 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 19:54:43,483 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 19:54:43,485 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 19:54:43,487 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 19:54:43,488 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 19:54:43,489 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 19:54:43,489 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 19:54:43,491 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 19:54:43,492 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 19:54:43,493 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 19:54:43,494 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 19:54:43,495 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 19:54:43,497 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 19:54:43,500 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 19:54:43,502 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 19:54:43,503 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 19:54:43,504 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 19:54:43,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 19:54:43,508 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 19:54:43,508 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 19:54:43,510 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 19:54:43,511 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 19:54:43,512 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 19:54:43,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 19:54:43,514 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 19:54:43,515 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 19:54:43,515 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 19:54:43,516 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 19:54:43,516 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 19:54:43,518 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 19:54:43,519 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 19:54:43,519 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-01 19:54:43,535 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 19:54:43,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 19:54:43,537 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 19:54:43,537 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 19:54:43,538 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 19:54:43,538 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 19:54:43,538 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 19:54:43,538 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 19:54:43,538 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 19:54:43,539 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 19:54:43,539 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 19:54:43,539 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-01 19:54:43,539 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-01 19:54:43,539 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-01 19:54:43,539 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 19:54:43,541 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 19:54:43,541 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 19:54:43,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 19:54:43,542 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 19:54:43,542 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 19:54:43,542 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 19:54:43,542 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 19:54:43,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 19:54:43,542 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 19:54:43,544 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 19:54:43,544 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 19:54:43,544 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 87dcbb1d4539995e5aba39e6053775ca0fac811e [2019-01-01 19:54:43,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 19:54:43,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 19:54:43,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 19:54:43,627 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 19:54:43,628 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 19:54:43,629 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2019-01-01 19:54:43,699 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d9ff136/86c4018bcde8467dbac70c66a5cbe090/FLAG35a6989eb [2019-01-01 19:54:44,191 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 19:54:44,194 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2019-01-01 19:54:44,202 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d9ff136/86c4018bcde8467dbac70c66a5cbe090/FLAG35a6989eb [2019-01-01 19:54:44,543 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d9ff136/86c4018bcde8467dbac70c66a5cbe090 [2019-01-01 19:54:44,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 19:54:44,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-01 19:54:44,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 19:54:44,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 19:54:44,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 19:54:44,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:44,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3277d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44, skipping insertion in model container [2019-01-01 19:54:44,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:44,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 19:54:44,584 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 19:54:44,777 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 19:54:44,879 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 19:54:44,894 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 19:54:44,923 INFO L195 MainTranslator]: Completed translation [2019-01-01 19:54:44,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44 WrapperNode [2019-01-01 19:54:44,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 19:54:44,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 19:54:44,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 19:54:44,925 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 19:54:44,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:44,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:45,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:45,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:45,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:45,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:45,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... [2019-01-01 19:54:45,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 19:54:45,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 19:54:45,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 19:54:45,063 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 19:54:45,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-01 19:54:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-01 19:54:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 19:54:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2019-01-01 19:54:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-01-01 19:54:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-01 19:54:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-01-01 19:54:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2019-01-01 19:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 19:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-01-01 19:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-01 19:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 19:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 19:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-01 19:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-01 19:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 19:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 19:54:45,765 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 19:54:45,765 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2019-01-01 19:54:45,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 07:54:45 BoogieIcfgContainer [2019-01-01 19:54:45,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 19:54:45,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 19:54:45,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 19:54:45,780 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 19:54:45,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 07:54:44" (1/3) ... [2019-01-01 19:54:45,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290e0891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 07:54:45, skipping insertion in model container [2019-01-01 19:54:45,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 07:54:44" (2/3) ... [2019-01-01 19:54:45,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290e0891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 07:54:45, skipping insertion in model container [2019-01-01 19:54:45,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 07:54:45" (3/3) ... [2019-01-01 19:54:45,790 INFO L112 eAbstractionObserver]: Analyzing ICFG scopes4_true-valid-memsafety.c [2019-01-01 19:54:45,806 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 19:54:45,814 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-01-01 19:54:45,831 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-01-01 19:54:45,857 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 19:54:45,858 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 19:54:45,858 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-01 19:54:45,858 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 19:54:45,858 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 19:54:45,858 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 19:54:45,859 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 19:54:45,859 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 19:54:45,859 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 19:54:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-01-01 19:54:45,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-01 19:54:45,886 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 19:54:45,887 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 19:54:45,889 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2019-01-01 19:54:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 19:54:45,896 INFO L82 PathProgramCache]: Analyzing trace with hash -325957377, now seen corresponding path program 1 times [2019-01-01 19:54:45,899 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 19:54:45,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 19:54:45,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:45,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 19:54:45,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 19:54:46,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 19:54:46,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 19:54:46,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 19:54:46,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 19:54:46,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 19:54:46,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 19:54:46,271 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-01-01 19:54:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 19:54:46,328 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-01-01 19:54:46,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 19:54:46,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-01-01 19:54:46,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 19:54:46,341 INFO L225 Difference]: With dead ends: 24 [2019-01-01 19:54:46,341 INFO L226 Difference]: Without dead ends: 19 [2019-01-01 19:54:46,343 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 [2019-01-01 19:54:46,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-01 19:54:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-01 19:54:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-01 19:54:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-01-01 19:54:46,383 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 8 [2019-01-01 19:54:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 19:54:46,383 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-01-01 19:54:46,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 19:54:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-01-01 19:54:46,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-01 19:54:46,384 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 19:54:46,384 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 19:54:46,385 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2019-01-01 19:54:46,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 19:54:46,385 INFO L82 PathProgramCache]: Analyzing trace with hash -325957376, now seen corresponding path program 1 times [2019-01-01 19:54:46,385 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 19:54:46,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 19:54:46,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:46,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 19:54:46,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 19:54:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 19:54:46,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 19:54:46,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 19:54:46,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 19:54:46,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 19:54:46,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 19:54:46,590 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2019-01-01 19:54:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 19:54:46,648 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-01-01 19:54:46,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 19:54:46,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-01-01 19:54:46,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 19:54:46,650 INFO L225 Difference]: With dead ends: 18 [2019-01-01 19:54:46,651 INFO L226 Difference]: Without dead ends: 18 [2019-01-01 19:54:46,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 19:54:46,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-01-01 19:54:46,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-01-01 19:54:46,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-01 19:54:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-01-01 19:54:46,661 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2019-01-01 19:54:46,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 19:54:46,661 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-01-01 19:54:46,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 19:54:46,662 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-01-01 19:54:46,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-01 19:54:46,663 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 19:54:46,663 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 19:54:46,663 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2019-01-01 19:54:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 19:54:46,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979706, now seen corresponding path program 1 times [2019-01-01 19:54:46,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 19:54:46,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 19:54:46,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:46,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 19:54:46,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 19:54:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 19:54:47,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 19:54:47,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 19:54:47,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 19:54:47,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 19:54:47,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-01-01 19:54:47,062 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 8 states. [2019-01-01 19:54:47,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 19:54:47,437 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-01-01 19:54:47,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 19:54:47,437 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2019-01-01 19:54:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 19:54:47,438 INFO L225 Difference]: With dead ends: 17 [2019-01-01 19:54:47,439 INFO L226 Difference]: Without dead ends: 17 [2019-01-01 19:54:47,439 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-01-01 19:54:47,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-01 19:54:47,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-01-01 19:54:47,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-01 19:54:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2019-01-01 19:54:47,443 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2019-01-01 19:54:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 19:54:47,444 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2019-01-01 19:54:47,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 19:54:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2019-01-01 19:54:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-01 19:54:47,445 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 19:54:47,445 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 19:54:47,445 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2019-01-01 19:54:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 19:54:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979705, now seen corresponding path program 1 times [2019-01-01 19:54:47,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 19:54:47,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 19:54:47,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:47,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 19:54:47,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 19:54:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 19:54:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 19:54:47,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 19:54:47,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 19:54:47,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-01 19:54:47,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-01 19:54:47,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-01-01 19:54:47,942 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 9 states. [2019-01-01 19:54:48,581 WARN L181 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-01 19:54:48,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 19:54:48,814 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-01-01 19:54:48,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 19:54:48,814 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-01-01 19:54:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 19:54:48,815 INFO L225 Difference]: With dead ends: 16 [2019-01-01 19:54:48,815 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 19:54:48,817 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2019-01-01 19:54:48,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 19:54:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 19:54:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 19:54:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 19:54:48,818 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-01-01 19:54:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 19:54:48,819 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 19:54:48,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-01 19:54:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 19:54:48,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 19:54:48,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 07:54:48 BoogieIcfgContainer [2019-01-01 19:54:48,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 19:54:48,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 19:54:48,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 19:54:48,827 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 19:54:48,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 07:54:45" (3/4) ... [2019-01-01 19:54:48,833 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 19:54:48,841 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-01 19:54:48,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2019-01-01 19:54:48,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-01 19:54:48,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo2 [2019-01-01 19:54:48,851 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2019-01-01 19:54:48,852 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2019-01-01 19:54:48,852 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2019-01-01 19:54:48,853 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-01-01 19:54:48,853 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-01 19:54:48,853 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-01 19:54:48,853 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-01 19:54:48,904 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 19:54:48,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 19:54:48,906 INFO L168 Benchmark]: Toolchain (without parser) took 4358.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 946.0 MB in the beginning and 971.3 MB in the end (delta: -25.3 MB). Peak memory consumption was 97.9 MB. Max. memory is 11.5 GB. [2019-01-01 19:54:48,907 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 19:54:48,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.66 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-01-01 19:54:48,909 INFO L168 Benchmark]: Boogie Preprocessor took 136.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-01-01 19:54:48,910 INFO L168 Benchmark]: RCFGBuilder took 703.79 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-01-01 19:54:48,911 INFO L168 Benchmark]: TraceAbstraction took 3053.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.3 MB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 11.5 GB. [2019-01-01 19:54:48,912 INFO L168 Benchmark]: Witness Printer took 78.13 ms. Allocated memory is still 1.2 GB. Free memory is still 971.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 19:54:48,917 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.66 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 136.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 703.79 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3053.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.3 MB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 11.5 GB. * Witness Printer took 78.13 ms. Allocated memory is still 1.2 GB. Free memory is still 971.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 5 error locations. SAFE Result, 2.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 44 SDslu, 35 SDs, 0 SdLazy, 121 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 3917 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...