./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/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_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/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 0.1.23-5842f4b [2018-11-18 10:02:27,748 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:02:27,749 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:02:27,756 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:02:27,756 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:02:27,757 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:02:27,758 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:02:27,759 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:02:27,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:02:27,760 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:02:27,761 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:02:27,761 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:02:27,762 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:02:27,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:02:27,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:02:27,764 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:02:27,764 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:02:27,765 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:02:27,766 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:02:27,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:02:27,767 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:02:27,768 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:02:27,769 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:02:27,769 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:02:27,769 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:02:27,770 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:02:27,770 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:02:27,771 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:02:27,772 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:02:27,772 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:02:27,772 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:02:27,773 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:02:27,773 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:02:27,773 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:02:27,774 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:02:27,774 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:02:27,775 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 10:02:27,782 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:02:27,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:02:27,783 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:02:27,783 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:02:27,783 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:02:27,783 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 10:02:27,784 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 10:02:27,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:02:27,785 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:02:27,785 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:02:27,785 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:02:27,785 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:02:27,785 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:02:27,785 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:02:27,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:02:27,786 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:02:27,786 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:02:27,786 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:02:27,786 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:02:27,786 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_227486fb-c258-4011-a36e-126d996880a5/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 [2018-11-18 10:02:27,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:02:27,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:02:27,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:02:27,823 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:02:27,823 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:02:27,824 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/derefInLoop1_false-valid-deref.c [2018-11-18 10:02:27,867 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/data/4697170f5/0c60f3d7c2b44b1e90e22c79f127d86b/FLAG4516181c4 [2018-11-18 10:02:28,175 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:02:28,176 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/sv-benchmarks/c/memsafety-ext3/derefInLoop1_false-valid-deref.c [2018-11-18 10:02:28,180 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/data/4697170f5/0c60f3d7c2b44b1e90e22c79f127d86b/FLAG4516181c4 [2018-11-18 10:02:28,190 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/data/4697170f5/0c60f3d7c2b44b1e90e22c79f127d86b [2018-11-18 10:02:28,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:02:28,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:02:28,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:02:28,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:02:28,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:02:28,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb6de22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28, skipping insertion in model container [2018-11-18 10:02:28,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:02:28,217 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:02:28,323 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:02:28,330 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:02:28,340 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:02:28,349 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:02:28,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28 WrapperNode [2018-11-18 10:02:28,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:02:28,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:02:28,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:02:28,350 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:02:28,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... [2018-11-18 10:02:28,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:02:28,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:02:28,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:02:28,374 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:02:28,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/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 [2018-11-18 10:02:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:02:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:02:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:02:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:02:28,549 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:02:28,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:28 BoogieIcfgContainer [2018-11-18 10:02:28,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:02:28,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:02:28,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:02:28,554 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:02:28,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:02:28" (1/3) ... [2018-11-18 10:02:28,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd5e251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:02:28, skipping insertion in model container [2018-11-18 10:02:28,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:28" (2/3) ... [2018-11-18 10:02:28,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd5e251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:02:28, skipping insertion in model container [2018-11-18 10:02:28,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:28" (3/3) ... [2018-11-18 10:02:28,556 INFO L112 eAbstractionObserver]: Analyzing ICFG derefInLoop1_false-valid-deref.c [2018-11-18 10:02:28,564 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:02:28,571 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-18 10:02:28,583 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-18 10:02:28,605 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:02:28,605 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:02:28,605 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 10:02:28,606 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:02:28,606 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:02:28,606 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:02:28,606 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:02:28,606 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:02:28,606 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:02:28,618 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-18 10:02:28,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:02:28,626 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:02:28,627 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:02:28,628 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 10:02:28,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:02:28,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1441260535, now seen corresponding path program 1 times [2018-11-18 10:02:28,635 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:02:28,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:02:28,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:28,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:02:28,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:02:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:02:28,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:02:28,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:02:28,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:02:28,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:02:28,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:02:28,736 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-18 10:02:28,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:02:28,750 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-18 10:02:28,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:02:28,751 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-18 10:02:28,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:02:28,756 INFO L225 Difference]: With dead ends: 19 [2018-11-18 10:02:28,756 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 10:02:28,757 INFO L604 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 [2018-11-18 10:02:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 10:02:28,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 10:02:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 10:02:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 10:02:28,779 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2018-11-18 10:02:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:02:28,779 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 10:02:28,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:02:28,779 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 10:02:28,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:02:28,779 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:02:28,779 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:02:28,780 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 10:02:28,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:02:28,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1728881770, now seen corresponding path program 1 times [2018-11-18 10:02:28,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:02:28,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:02:28,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:28,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:02:28,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:02:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:02:28,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:02:28,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:02:28,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:02:28,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:02:28,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:02:28,822 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-18 10:02:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:02:28,853 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-18 10:02:28,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:02:28,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 10:02:28,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:02:28,853 INFO L225 Difference]: With dead ends: 20 [2018-11-18 10:02:28,853 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 10:02:28,854 INFO L604 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 [2018-11-18 10:02:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 10:02:28,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-11-18 10:02:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 10:02:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-18 10:02:28,856 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2018-11-18 10:02:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:02:28,856 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-18 10:02:28,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:02:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-18 10:02:28,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:02:28,857 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:02:28,857 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:02:28,857 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 10:02:28,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:02:28,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1688682998, now seen corresponding path program 1 times [2018-11-18 10:02:28,857 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:02:28,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:02:28,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:28,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:02:28,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:02:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:02:28,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:02:28,896 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/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 [2018-11-18 10:02:28,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:02:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:02:28,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:02:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:02:28,963 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:02:28,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-18 10:02:28,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:02:28,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:02:28,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:02:28,964 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2018-11-18 10:02:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:02:28,981 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-18 10:02:28,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:02:28,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-18 10:02:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:02:28,982 INFO L225 Difference]: With dead ends: 22 [2018-11-18 10:02:28,982 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 10:02:28,982 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:02:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 10:02:28,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 10:02:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 10:02:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-11-18 10:02:28,985 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2018-11-18 10:02:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:02:28,985 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-11-18 10:02:28,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:02:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-18 10:02:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:02:28,986 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:02:28,986 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:02:28,986 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 10:02:28,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:02:28,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1688684632, now seen corresponding path program 1 times [2018-11-18 10:02:28,987 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:02:28,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:02:28,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:28,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:02:28,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:02:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:02:29,020 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:02:29,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:02:29 BoogieIcfgContainer [2018-11-18 10:02:29,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:02:29,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:02:29,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:02:29,034 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:02:29,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:28" (3/4) ... [2018-11-18 10:02:29,036 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 10:02:29,065 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_227486fb-c258-4011-a36e-126d996880a5/bin-2019/uautomizer/witness.graphml [2018-11-18 10:02:29,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:02:29,065 INFO L168 Benchmark]: Toolchain (without parser) took 872.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -109.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:29,066 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:02:29,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.30 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:29,067 INFO L168 Benchmark]: Boogie Preprocessor took 23.41 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:29,067 INFO L168 Benchmark]: RCFGBuilder took 176.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:29,067 INFO L168 Benchmark]: TraceAbstraction took 482.52 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: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:29,068 INFO L168 Benchmark]: Witness Printer took 31.27 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. [2018-11-18 10:02:29,069 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.30 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.41 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 482.52 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: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. * Witness Printer took 31.27 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 [L4] FCALL int a[10]; VAL [a={41:0}, i=0] [L5] COND TRUE i == 0 [L6] p = a VAL [a={41:0}, i=0, p={41:0}] [L3] i++ [L3] COND TRUE i < 2 [L4] FCALL int a[10]; VAL [a={43:0}, i=1, p={41:0}] [L5] COND FALSE !(i == 0) VAL [a={43:0}, i=1, p={41:0}] [L8] FCALL p[0] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 3 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 9 SDslu, 34 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 831 SizeOfPredicates, 1 NumberOfNonLiveVariables, 52 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...