./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefInLoop1_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefInLoop1_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/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 aa3ae4378a5284e50be7191d52900376e96b0fdc ..................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 02:42:29,465 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 02:42:29,467 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 02:42:29,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 02:42:29,474 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 02:42:29,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 02:42:29,475 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 02:42:29,476 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 02:42:29,477 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 02:42:29,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 02:42:29,479 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 02:42:29,479 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 02:42:29,480 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 02:42:29,481 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 02:42:29,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 02:42:29,482 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 02:42:29,483 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 02:42:29,484 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 02:42:29,485 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 02:42:29,487 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 02:42:29,488 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 02:42:29,488 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 02:42:29,490 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 02:42:29,491 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 02:42:29,491 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 02:42:29,492 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 02:42:29,492 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 02:42:29,493 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 02:42:29,494 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 02:42:29,494 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 02:42:29,495 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 02:42:29,495 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 02:42:29,495 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 02:42:29,495 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 02:42:29,496 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 02:42:29,497 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 02:42:29,497 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-10 02:42:29,507 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 02:42:29,508 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 02:42:29,509 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 02:42:29,509 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 02:42:29,509 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 02:42:29,509 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 02:42:29,509 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 02:42:29,509 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 02:42:29,510 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 02:42:29,511 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 02:42:29,511 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 02:42:29,511 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 02:42:29,511 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 02:42:29,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 02:42:29,511 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 02:42:29,511 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 02:42:29,511 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 02:42:29,512 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 02:42:29,512 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_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/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 -> aa3ae4378a5284e50be7191d52900376e96b0fdc [2018-11-10 02:42:29,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 02:42:29,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 02:42:29,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 02:42:29,546 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 02:42:29,546 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 02:42:29,547 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/derefInLoop1_false-valid-deref.c [2018-11-10 02:42:29,585 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/data/8c316ccc3/e1f3c22440fd4755a7d0d7b3bfa21d9d/FLAGa5cbb339c [2018-11-10 02:42:29,928 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 02:42:29,928 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/sv-benchmarks/c/memsafety-ext3/derefInLoop1_false-valid-deref.c [2018-11-10 02:42:29,933 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/data/8c316ccc3/e1f3c22440fd4755a7d0d7b3bfa21d9d/FLAGa5cbb339c [2018-11-10 02:42:29,946 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/data/8c316ccc3/e1f3c22440fd4755a7d0d7b3bfa21d9d [2018-11-10 02:42:29,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 02:42:29,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 02:42:29,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 02:42:29,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 02:42:29,955 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 02:42:29,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:42:29" (1/1) ... [2018-11-10 02:42:29,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12305cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:29, skipping insertion in model container [2018-11-10 02:42:29,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:42:29" (1/1) ... [2018-11-10 02:42:29,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 02:42:29,985 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 02:42:30,106 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:42:30,114 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 02:42:30,127 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:42:30,138 INFO L193 MainTranslator]: Completed translation [2018-11-10 02:42:30,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30 WrapperNode [2018-11-10 02:42:30,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 02:42:30,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 02:42:30,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 02:42:30,139 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 02:42:30,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... [2018-11-10 02:42:30,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... [2018-11-10 02:42:30,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... [2018-11-10 02:42:30,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... [2018-11-10 02:42:30,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... [2018-11-10 02:42:30,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... [2018-11-10 02:42:30,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... [2018-11-10 02:42:30,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 02:42:30,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 02:42:30,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 02:42:30,164 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 02:42:30,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 02:42:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 02:42:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 02:42:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 02:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 02:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 02:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 02:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 02:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 02:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 02:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 02:42:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 02:42:30,367 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 02:42:30,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:42:30 BoogieIcfgContainer [2018-11-10 02:42:30,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 02:42:30,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 02:42:30,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 02:42:30,371 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 02:42:30,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:42:29" (1/3) ... [2018-11-10 02:42:30,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2777b803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:42:30, skipping insertion in model container [2018-11-10 02:42:30,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:30" (2/3) ... [2018-11-10 02:42:30,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2777b803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:42:30, skipping insertion in model container [2018-11-10 02:42:30,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:42:30" (3/3) ... [2018-11-10 02:42:30,374 INFO L112 eAbstractionObserver]: Analyzing ICFG derefInLoop1_false-valid-deref.c [2018-11-10 02:42:30,381 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 02:42:30,386 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-10 02:42:30,397 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-10 02:42:30,415 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 02:42:30,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 02:42:30,416 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 02:42:30,416 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 02:42:30,416 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 02:42:30,416 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 02:42:30,417 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 02:42:30,417 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 02:42:30,417 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 02:42:30,430 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-10 02:42:30,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 02:42:30,440 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:42:30,440 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 02:42:30,442 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-10 02:42:30,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:42:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash 402525437, now seen corresponding path program 1 times [2018-11-10 02:42:30,449 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:42:30,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:42:30,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:42:30,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:42:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:42:30,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:42:30,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 02:42:30,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 02:42:30,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 02:42:30,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 02:42:30,554 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-10 02:42:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:42:30,567 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-10 02:42:30,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 02:42:30,568 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-10 02:42:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:42:30,576 INFO L225 Difference]: With dead ends: 22 [2018-11-10 02:42:30,576 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 02:42:30,578 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 02:42:30,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 02:42:30,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 02:42:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 02:42:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-10 02:42:30,603 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 9 [2018-11-10 02:42:30,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:42:30,603 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-10 02:42:30,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 02:42:30,604 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-10 02:42:30,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 02:42:30,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:42:30,604 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 02:42:30,604 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-10 02:42:30,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:42:30,605 INFO L82 PathProgramCache]: Analyzing trace with hash -407227449, now seen corresponding path program 1 times [2018-11-10 02:42:30,605 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:42:30,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:42:30,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:42:30,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:42:30,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:42:30,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:42:30,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 02:42:30,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 02:42:30,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 02:42:30,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 02:42:30,644 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 3 states. [2018-11-10 02:42:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:42:30,673 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-10 02:42:30,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 02:42:30,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 02:42:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:42:30,673 INFO L225 Difference]: With dead ends: 24 [2018-11-10 02:42:30,674 INFO L226 Difference]: Without dead ends: 24 [2018-11-10 02:42:30,674 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 02:42:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-10 02:42:30,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-11-10 02:42:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 02:42:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-10 02:42:30,677 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2018-11-10 02:42:30,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:42:30,678 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-10 02:42:30,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 02:42:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-10 02:42:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 02:42:30,678 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:42:30,678 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 02:42:30,678 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-10 02:42:30,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:42:30,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1433742293, now seen corresponding path program 1 times [2018-11-10 02:42:30,679 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:42:30,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:42:30,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:42:30,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:42:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:42:30,733 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 02:42:30,733 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 02:42:30,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:42:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:42:30,765 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:42:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:42:30,802 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 02:42:30,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-10 02:42:30,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 02:42:30,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 02:42:30,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 02:42:30,803 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2018-11-10 02:42:30,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:42:30,824 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-10 02:42:30,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 02:42:30,824 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-10 02:42:30,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:42:30,825 INFO L225 Difference]: With dead ends: 28 [2018-11-10 02:42:30,825 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 02:42:30,825 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 02:42:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 02:42:30,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-10 02:42:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 02:42:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-11-10 02:42:30,827 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 17 [2018-11-10 02:42:30,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:42:30,828 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-11-10 02:42:30,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 02:42:30,828 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-11-10 02:42:30,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 02:42:30,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:42:30,828 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 02:42:30,829 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-11-10 02:42:30,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:42:30,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1496381948, now seen corresponding path program 1 times [2018-11-10 02:42:30,829 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:42:30,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:42:30,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:42:30,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:42:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:42:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:42:30,866 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 02:42:30,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:42:30 BoogieIcfgContainer [2018-11-10 02:42:30,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 02:42:30,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 02:42:30,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 02:42:30,884 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 02:42:30,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:42:30" (3/4) ... [2018-11-10 02:42:30,886 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 02:42:30,919 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1c84d0cb-9163-442e-ab44-2b087ef8aeb7/bin-2019/uautomizer/witness.graphml [2018-11-10 02:42:30,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 02:42:30,920 INFO L168 Benchmark]: Toolchain (without parser) took 970.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -117.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-11-10 02:42:30,921 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:42:30,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:42:30,922 INFO L168 Benchmark]: Boogie Preprocessor took 24.61 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:42:30,923 INFO L168 Benchmark]: RCFGBuilder took 203.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-10 02:42:30,923 INFO L168 Benchmark]: TraceAbstraction took 514.90 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: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. [2018-11-10 02:42:30,924 INFO L168 Benchmark]: Witness Printer took 36.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:42:30,926 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.61 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 203.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 514.90 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: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. * Witness Printer took 36.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L3] int i = 0; VAL [i=0] [L3] COND TRUE i < 2 VAL [i=0] [L4] FCALL int a[10]; VAL [a={42:0}, i=0] [L5] COND TRUE i == 0 [L6] p = a VAL [a={42:0}, i=0, p={42:0}] [L3] i++ VAL [a={42:0}, i=1, p={42:0}] [L3] COND TRUE i < 2 VAL [i=1, p={42:0}] [L4] FCALL int a[10]; VAL [a={43:0}, i=1, p={42:0}] [L5] COND FALSE !(i == 0) VAL [a={43:0}, i=1, p={42:0}] [L8] FCALL p[0] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 3 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 12 SDslu, 45 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=3, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1269 SizeOfPredicates, 1 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...