./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 25981771a012eec333f97d8302486eae22970d9e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-aa41828 [2018-11-23 00:28:19,100 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:28:19,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:28:19,109 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:28:19,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:28:19,110 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:28:19,110 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:28:19,111 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:28:19,112 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:28:19,113 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:28:19,114 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:28:19,114 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:28:19,114 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:28:19,115 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:28:19,116 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:28:19,116 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:28:19,117 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:28:19,118 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:28:19,120 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:28:19,121 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:28:19,121 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:28:19,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:28:19,124 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:28:19,124 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:28:19,124 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:28:19,125 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:28:19,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:28:19,126 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:28:19,127 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:28:19,127 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:28:19,128 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:28:19,128 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:28:19,128 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:28:19,128 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:28:19,129 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:28:19,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:28:19,130 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-23 00:28:19,140 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:28:19,140 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:28:19,141 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:28:19,141 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:28:19,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:28:19,141 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:28:19,141 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 00:28:19,141 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:28:19,141 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:28:19,142 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:28:19,142 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 00:28:19,142 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 00:28:19,142 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 00:28:19,142 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:28:19,142 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:28:19,142 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:28:19,143 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 00:28:19,143 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 00:28:19,143 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:28:19,143 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:28:19,143 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 00:28:19,143 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:28:19,144 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:28:19,144 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 00:28:19,144 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:28:19,144 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_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak 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 -> Kojak 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 -> 25981771a012eec333f97d8302486eae22970d9e [2018-11-23 00:28:19,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:28:19,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:28:19,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:28:19,183 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:28:19,183 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:28:19,184 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/scopes4_false-valid-deref.c [2018-11-23 00:28:19,228 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/data/bb4acfc2c/38aaaecd1f934c9ca54c5cfd93879d1d/FLAG3fad39d8f [2018-11-23 00:28:19,568 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:28:19,569 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/sv-benchmarks/c/memsafety-ext3/scopes4_false-valid-deref.c [2018-11-23 00:28:19,574 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/data/bb4acfc2c/38aaaecd1f934c9ca54c5cfd93879d1d/FLAG3fad39d8f [2018-11-23 00:28:19,987 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/data/bb4acfc2c/38aaaecd1f934c9ca54c5cfd93879d1d [2018-11-23 00:28:19,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:28:19,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:28:19,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:28:19,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:28:19,995 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:28:19,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:28:19" (1/1) ... [2018-11-23 00:28:19,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12858536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:19, skipping insertion in model container [2018-11-23 00:28:19,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:28:19" (1/1) ... [2018-11-23 00:28:20,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:28:20,017 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:28:20,119 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:28:20,125 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:28:20,138 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:28:20,147 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:28:20,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20 WrapperNode [2018-11-23 00:28:20,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:28:20,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:28:20,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:28:20,148 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:28:20,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:28:20,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:28:20,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:28:20,170 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:28:20,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:28:20,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:28:20,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:28:20,185 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:28:20,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-11-23 00:28:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 00:28:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:28:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:28:20,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:28:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 00:28:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 00:28:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:28:20,407 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:28:20,407 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 00:28:20,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:28:20 BoogieIcfgContainer [2018-11-23 00:28:20,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:28:20,408 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 00:28:20,408 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 00:28:20,417 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 00:28:20,417 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:28:20" (1/1) ... [2018-11-23 00:28:20,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:28:20,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:28:20,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2018-11-23 00:28:20,458 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2018-11-23 00:28:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-11-23 00:28:20,460 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:28:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:28:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:28:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:28:20,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2018-11-23 00:28:20,591 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2018-11-23 00:28:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-11-23 00:28:20,591 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:28:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:28:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:28:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:28:20,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2018-11-23 00:28:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2018-11-23 00:28:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-23 00:28:20,727 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:28:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:28:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:28:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:28:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:28:20,790 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string3.base, #t~string3.offset := #Ultimate.alloc(4);call write~init~int(37, #t~string3.base, #t~string3.offset, 1);call write~init~int(100, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(10, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 3 + #t~string3.offset, 1);main_old_#valid := #valid;havoc main_#res;havoc main_#t~ret1.base, main_#t~ret1.offset, main_#t~nondet2, main_#t~mem4, main_~a~0.base, main_~a~0.offset;havoc foo_#res.base, foo_#res.offset;havoc foo_#t~ret0.base, foo_#t~ret0.offset, foo_~arr~1;havoc foo_~arr~1;havoc foo2_#res.base, foo2_#res.offset;havoc foo2_~#arr~0.base, foo2_~#arr~0.offset;call foo2_~#arr~0.base, foo2_~#arr~0.offset := #Ultimate.alloc(4096); VAL [|#NULL.base|=0, |#NULL.offset|=0, |#t~string3.base|=5, |#t~string3.offset|=0, |ULTIMATE.start_foo2_~#arr~0.base|=7, |ULTIMATE.start_foo2_~#arr~0.offset|=0] [?] call write~int(13, foo2_~#arr~0.base, 776 + foo2_~#arr~0.offset, 4);foo2_#res.base, foo2_#res.offset := foo2_~#arr~0.base, 4 + foo2_~#arr~0.offset;call ULTIMATE.dealloc(foo2_~#arr~0.base, foo2_~#arr~0.offset);havoc foo2_~#arr~0.base, foo2_~#arr~0.offset;foo_#t~ret0.base, foo_#t~ret0.offset := foo2_#res.base, foo2_#res.offset;foo_#res.base, foo_#res.offset := foo_#t~ret0.base, foo_#t~ret0.offset;havoc foo_#t~ret0.base, foo_#t~ret0.offset;main_#t~ret1.base, main_#t~ret1.offset := foo_#res.base, foo_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret1.base, main_#t~ret1.offset;havoc main_#t~ret1.base, main_#t~ret1.offset;havoc main_#t~nondet2; VAL [ULTIMATE.start_main_~a~0.base=7, ULTIMATE.start_main_~a~0.offset=4, |#NULL.base|=0, |#NULL.offset|=0, |#t~string3.base|=5, |#t~string3.offset|=0, |ULTIMATE.start_foo2_#res.base|=7, |ULTIMATE.start_foo2_#res.offset|=4, |ULTIMATE.start_foo_#res.base|=7, |ULTIMATE.start_foo_#res.offset|=4] [?] assume !(1 == #valid[main_~a~0.base]); VAL [ULTIMATE.start_main_~a~0.base=7, ULTIMATE.start_main_~a~0.offset=4, |#NULL.base|=0, |#NULL.offset|=0, |#t~string3.base|=5, |#t~string3.offset|=0, |ULTIMATE.start_foo2_#res.base|=7, |ULTIMATE.start_foo2_#res.offset|=4, |ULTIMATE.start_foo_#res.base|=7, |ULTIMATE.start_foo_#res.offset|=4] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L18] call #t~string3.base, #t~string3.offset := #Ultimate.alloc(4); [L18] call write~init~int(37, #t~string3.base, #t~string3.offset, 1); [L18] call write~init~int(100, #t~string3.base, 1 + #t~string3.offset, 1); [L18] call write~init~int(10, #t~string3.base, 2 + #t~string3.offset, 1); [L18] call write~init~int(0, #t~string3.base, 3 + #t~string3.offset, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1.base, main_#t~ret1.offset, main_#t~nondet2, main_#t~mem4, main_~a~0.base, main_~a~0.offset; [L17] havoc foo_#res.base, foo_#res.offset; [L17] havoc foo_#t~ret0.base, foo_#t~ret0.offset, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res.base, foo2_#res.offset; [L13] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L5] call foo2_~#arr~0.base, foo2_~#arr~0.offset := #Ultimate.alloc(4096); VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_~#arr~0.base=7, foo2_~#arr~0.offset=0] [L6] call write~int(13, foo2_~#arr~0.base, 776 + foo2_~#arr~0.offset, 4); [L7] foo2_#res.base, foo2_#res.offset := foo2_~#arr~0.base, 4 + foo2_~#arr~0.offset; [L5] call ULTIMATE.dealloc(foo2_~#arr~0.base, foo2_~#arr~0.offset); [L7] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L13] foo_#t~ret0.base, foo_#t~ret0.offset := foo2_#res.base, foo2_#res.offset; [L13] foo_#res.base, foo_#res.offset := foo_#t~ret0.base, foo_#t~ret0.offset; [L13] havoc foo_#t~ret0.base, foo_#t~ret0.offset; [L17] main_#t~ret1.base, main_#t~ret1.offset := foo_#res.base, foo_#res.offset; [L17] main_~a~0.base, main_~a~0.offset := main_#t~ret1.base, main_#t~ret1.offset; [L17] havoc main_#t~ret1.base, main_#t~ret1.offset; [L18] havoc main_#t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] [L18] call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L18] call #t~string3.base, #t~string3.offset := #Ultimate.alloc(4); [L18] call write~init~int(37, #t~string3.base, #t~string3.offset, 1); [L18] call write~init~int(100, #t~string3.base, 1 + #t~string3.offset, 1); [L18] call write~init~int(10, #t~string3.base, 2 + #t~string3.offset, 1); [L18] call write~init~int(0, #t~string3.base, 3 + #t~string3.offset, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1.base, main_#t~ret1.offset, main_#t~nondet2, main_#t~mem4, main_~a~0.base, main_~a~0.offset; [L17] havoc foo_#res.base, foo_#res.offset; [L17] havoc foo_#t~ret0.base, foo_#t~ret0.offset, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res.base, foo2_#res.offset; [L13] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L5] call foo2_~#arr~0.base, foo2_~#arr~0.offset := #Ultimate.alloc(4096); VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_~#arr~0.base=7, foo2_~#arr~0.offset=0] [L6] call write~int(13, foo2_~#arr~0.base, 776 + foo2_~#arr~0.offset, 4); [L7] foo2_#res.base, foo2_#res.offset := foo2_~#arr~0.base, 4 + foo2_~#arr~0.offset; [L5] call ULTIMATE.dealloc(foo2_~#arr~0.base, foo2_~#arr~0.offset); [L7] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L13] foo_#t~ret0.base, foo_#t~ret0.offset := foo2_#res.base, foo2_#res.offset; [L13] foo_#res.base, foo_#res.offset := foo_#t~ret0.base, foo_#t~ret0.offset; [L13] havoc foo_#t~ret0.base, foo_#t~ret0.offset; [L17] main_#t~ret1.base, main_#t~ret1.offset := foo_#res.base, foo_#res.offset; [L17] main_~a~0.base, main_~a~0.offset := main_#t~ret1.base, main_#t~ret1.offset; [L17] havoc main_#t~ret1.base, main_#t~ret1.offset; [L18] havoc main_#t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] [L18] call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet2, main_#t~mem4, main_~a~0; [L17] havoc foo_#res; [L17] havoc foo_#t~ret0, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res; [L13] havoc foo2_~#arr~0; [L5] FCALL call foo2_~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_~#arr~0!base=7, foo2_~#arr~0!offset=0] [L6] FCALL call write~int(13, { base: foo2_~#arr~0!base, offset: 776 + foo2_~#arr~0!offset }, 4); [L7] foo2_#res := { base: foo2_~#arr~0!base, offset: 4 + foo2_~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(foo2_~#arr~0); [L7] havoc foo2_~#arr~0; [L13] foo_#t~ret0 := foo2_#res; [L13] foo_#res := foo_#t~ret0; [L13] havoc foo_#t~ret0; [L17] main_#t~ret1 := foo_#res; [L17] main_~a~0 := main_#t~ret1; [L17] havoc main_#t~ret1; [L18] havoc main_#t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] [L18] FCALL call main_#t~mem4 := read~int(main_~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet2, main_#t~mem4, main_~a~0; [L17] havoc foo_#res; [L17] havoc foo_#t~ret0, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res; [L13] havoc foo2_~#arr~0; [L5] FCALL call foo2_~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_~#arr~0!base=7, foo2_~#arr~0!offset=0] [L6] FCALL call write~int(13, { base: foo2_~#arr~0!base, offset: 776 + foo2_~#arr~0!offset }, 4); [L7] foo2_#res := { base: foo2_~#arr~0!base, offset: 4 + foo2_~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(foo2_~#arr~0); [L7] havoc foo2_~#arr~0; [L13] foo_#t~ret0 := foo2_#res; [L13] foo_#res := foo_#t~ret0; [L13] havoc foo_#t~ret0; [L17] main_#t~ret1 := foo_#res; [L17] main_~a~0 := main_#t~ret1; [L17] havoc main_#t~ret1; [L18] havoc main_#t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] [L18] FCALL call main_#t~mem4 := read~int(main_~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [L12] havoc ~arr~1; [L5] FCALL call ~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L6] FCALL call write~int(13, { base: ~#arr~0!base, offset: 776 + ~#arr~0!offset }, 4); [L7] #res := { base: ~#arr~0!base, offset: 4 + ~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(~#arr~0); [L7] havoc ~#arr~0; [L13] #res := #t~ret0; [L13] havoc #t~ret0; [L17] ~a~0 := #t~ret1; [L17] havoc #t~ret1; [L18] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L18] FCALL call #t~mem4 := read~int(~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [L12] havoc ~arr~1; [L5] FCALL call ~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L6] FCALL call write~int(13, { base: ~#arr~0!base, offset: 776 + ~#arr~0!offset }, 4); [L7] #res := { base: ~#arr~0!base, offset: 4 + ~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(~#arr~0); [L7] havoc ~#arr~0; [L13] #res := #t~ret0; [L13] havoc #t~ret0; [L17] ~a~0 := #t~ret1; [L17] havoc #t~ret1; [L18] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L18] FCALL call #t~mem4 := read~int(~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L12] int arr[123]; [L5] int arr[1024]; [L6] arr[194] = 13 [L7] return arr + 1; [L7] return arr + 1; [L13] return foo2(); [L17] int *a = foo(); [L18] \read(*a) ----- [2018-11-23 00:28:20,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:28:20 ImpRootNode [2018-11-23 00:28:20,817 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 00:28:20,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:28:20,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:28:20,818 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:28:20,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:28:20" (3/4) ... [2018-11-23 00:28:20,820 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string3.base, #t~string3.offset := #Ultimate.alloc(4);call write~init~int(37, #t~string3.base, #t~string3.offset, 1);call write~init~int(100, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(10, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 3 + #t~string3.offset, 1);main_old_#valid := #valid;havoc main_#res;havoc main_#t~ret1.base, main_#t~ret1.offset, main_#t~nondet2, main_#t~mem4, main_~a~0.base, main_~a~0.offset;havoc foo_#res.base, foo_#res.offset;havoc foo_#t~ret0.base, foo_#t~ret0.offset, foo_~arr~1;havoc foo_~arr~1;havoc foo2_#res.base, foo2_#res.offset;havoc foo2_~#arr~0.base, foo2_~#arr~0.offset;call foo2_~#arr~0.base, foo2_~#arr~0.offset := #Ultimate.alloc(4096); VAL [|#NULL.base|=0, |#NULL.offset|=0, |#t~string3.base|=5, |#t~string3.offset|=0, |ULTIMATE.start_foo2_~#arr~0.base|=7, |ULTIMATE.start_foo2_~#arr~0.offset|=0] [?] call write~int(13, foo2_~#arr~0.base, 776 + foo2_~#arr~0.offset, 4);foo2_#res.base, foo2_#res.offset := foo2_~#arr~0.base, 4 + foo2_~#arr~0.offset;call ULTIMATE.dealloc(foo2_~#arr~0.base, foo2_~#arr~0.offset);havoc foo2_~#arr~0.base, foo2_~#arr~0.offset;foo_#t~ret0.base, foo_#t~ret0.offset := foo2_#res.base, foo2_#res.offset;foo_#res.base, foo_#res.offset := foo_#t~ret0.base, foo_#t~ret0.offset;havoc foo_#t~ret0.base, foo_#t~ret0.offset;main_#t~ret1.base, main_#t~ret1.offset := foo_#res.base, foo_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret1.base, main_#t~ret1.offset;havoc main_#t~ret1.base, main_#t~ret1.offset;havoc main_#t~nondet2; VAL [ULTIMATE.start_main_~a~0.base=7, ULTIMATE.start_main_~a~0.offset=4, |#NULL.base|=0, |#NULL.offset|=0, |#t~string3.base|=5, |#t~string3.offset|=0, |ULTIMATE.start_foo2_#res.base|=7, |ULTIMATE.start_foo2_#res.offset|=4, |ULTIMATE.start_foo_#res.base|=7, |ULTIMATE.start_foo_#res.offset|=4] [?] assume !(1 == #valid[main_~a~0.base]); VAL [ULTIMATE.start_main_~a~0.base=7, ULTIMATE.start_main_~a~0.offset=4, |#NULL.base|=0, |#NULL.offset|=0, |#t~string3.base|=5, |#t~string3.offset|=0, |ULTIMATE.start_foo2_#res.base|=7, |ULTIMATE.start_foo2_#res.offset|=4, |ULTIMATE.start_foo_#res.base|=7, |ULTIMATE.start_foo_#res.offset|=4] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L18] call #t~string3.base, #t~string3.offset := #Ultimate.alloc(4); [L18] call write~init~int(37, #t~string3.base, #t~string3.offset, 1); [L18] call write~init~int(100, #t~string3.base, 1 + #t~string3.offset, 1); [L18] call write~init~int(10, #t~string3.base, 2 + #t~string3.offset, 1); [L18] call write~init~int(0, #t~string3.base, 3 + #t~string3.offset, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1.base, main_#t~ret1.offset, main_#t~nondet2, main_#t~mem4, main_~a~0.base, main_~a~0.offset; [L17] havoc foo_#res.base, foo_#res.offset; [L17] havoc foo_#t~ret0.base, foo_#t~ret0.offset, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res.base, foo2_#res.offset; [L13] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L5] call foo2_~#arr~0.base, foo2_~#arr~0.offset := #Ultimate.alloc(4096); VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_~#arr~0.base=7, foo2_~#arr~0.offset=0] [L6] call write~int(13, foo2_~#arr~0.base, 776 + foo2_~#arr~0.offset, 4); [L7] foo2_#res.base, foo2_#res.offset := foo2_~#arr~0.base, 4 + foo2_~#arr~0.offset; [L5] call ULTIMATE.dealloc(foo2_~#arr~0.base, foo2_~#arr~0.offset); [L7] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L13] foo_#t~ret0.base, foo_#t~ret0.offset := foo2_#res.base, foo2_#res.offset; [L13] foo_#res.base, foo_#res.offset := foo_#t~ret0.base, foo_#t~ret0.offset; [L13] havoc foo_#t~ret0.base, foo_#t~ret0.offset; [L17] main_#t~ret1.base, main_#t~ret1.offset := foo_#res.base, foo_#res.offset; [L17] main_~a~0.base, main_~a~0.offset := main_#t~ret1.base, main_#t~ret1.offset; [L17] havoc main_#t~ret1.base, main_#t~ret1.offset; [L18] havoc main_#t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] [L18] call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L18] call #t~string3.base, #t~string3.offset := #Ultimate.alloc(4); [L18] call write~init~int(37, #t~string3.base, #t~string3.offset, 1); [L18] call write~init~int(100, #t~string3.base, 1 + #t~string3.offset, 1); [L18] call write~init~int(10, #t~string3.base, 2 + #t~string3.offset, 1); [L18] call write~init~int(0, #t~string3.base, 3 + #t~string3.offset, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1.base, main_#t~ret1.offset, main_#t~nondet2, main_#t~mem4, main_~a~0.base, main_~a~0.offset; [L17] havoc foo_#res.base, foo_#res.offset; [L17] havoc foo_#t~ret0.base, foo_#t~ret0.offset, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res.base, foo2_#res.offset; [L13] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L5] call foo2_~#arr~0.base, foo2_~#arr~0.offset := #Ultimate.alloc(4096); VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_~#arr~0.base=7, foo2_~#arr~0.offset=0] [L6] call write~int(13, foo2_~#arr~0.base, 776 + foo2_~#arr~0.offset, 4); [L7] foo2_#res.base, foo2_#res.offset := foo2_~#arr~0.base, 4 + foo2_~#arr~0.offset; [L5] call ULTIMATE.dealloc(foo2_~#arr~0.base, foo2_~#arr~0.offset); [L7] havoc foo2_~#arr~0.base, foo2_~#arr~0.offset; [L13] foo_#t~ret0.base, foo_#t~ret0.offset := foo2_#res.base, foo2_#res.offset; [L13] foo_#res.base, foo_#res.offset := foo_#t~ret0.base, foo_#t~ret0.offset; [L13] havoc foo_#t~ret0.base, foo_#t~ret0.offset; [L17] main_#t~ret1.base, main_#t~ret1.offset := foo_#res.base, foo_#res.offset; [L17] main_~a~0.base, main_~a~0.offset := main_#t~ret1.base, main_#t~ret1.offset; [L17] havoc main_#t~ret1.base, main_#t~ret1.offset; [L18] havoc main_#t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] [L18] call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL.base=0, #NULL.offset=0, #t~string3.base=5, #t~string3.offset=0, foo2_#res.base=7, foo2_#res.offset=4, foo_#res.base=7, foo_#res.offset=4, main_~a~0.base=7, main_~a~0.offset=4] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet2, main_#t~mem4, main_~a~0; [L17] havoc foo_#res; [L17] havoc foo_#t~ret0, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res; [L13] havoc foo2_~#arr~0; [L5] FCALL call foo2_~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_~#arr~0!base=7, foo2_~#arr~0!offset=0] [L6] FCALL call write~int(13, { base: foo2_~#arr~0!base, offset: 776 + foo2_~#arr~0!offset }, 4); [L7] foo2_#res := { base: foo2_~#arr~0!base, offset: 4 + foo2_~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(foo2_~#arr~0); [L7] havoc foo2_~#arr~0; [L13] foo_#t~ret0 := foo2_#res; [L13] foo_#res := foo_#t~ret0; [L13] havoc foo_#t~ret0; [L17] main_#t~ret1 := foo_#res; [L17] main_~a~0 := main_#t~ret1; [L17] havoc main_#t~ret1; [L18] havoc main_#t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] [L18] FCALL call main_#t~mem4 := read~int(main_~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [?] main_old_#valid := #valid; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet2, main_#t~mem4, main_~a~0; [L17] havoc foo_#res; [L17] havoc foo_#t~ret0, foo_~arr~1; [L12] havoc foo_~arr~1; [L13] havoc foo2_#res; [L13] havoc foo2_~#arr~0; [L5] FCALL call foo2_~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_~#arr~0!base=7, foo2_~#arr~0!offset=0] [L6] FCALL call write~int(13, { base: foo2_~#arr~0!base, offset: 776 + foo2_~#arr~0!offset }, 4); [L7] foo2_#res := { base: foo2_~#arr~0!base, offset: 4 + foo2_~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(foo2_~#arr~0); [L7] havoc foo2_~#arr~0; [L13] foo_#t~ret0 := foo2_#res; [L13] foo_#res := foo_#t~ret0; [L13] havoc foo_#t~ret0; [L17] main_#t~ret1 := foo_#res; [L17] main_~a~0 := main_#t~ret1; [L17] havoc main_#t~ret1; [L18] havoc main_#t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] [L18] FCALL call main_#t~mem4 := read~int(main_~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0, foo2_#res!base=7, foo2_#res!offset=4, foo_#res!base=7, foo_#res!offset=4, main_~a~0!base=7, main_~a~0!offset=4] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [L12] havoc ~arr~1; [L5] FCALL call ~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L6] FCALL call write~int(13, { base: ~#arr~0!base, offset: 776 + ~#arr~0!offset }, 4); [L7] #res := { base: ~#arr~0!base, offset: 4 + ~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(~#arr~0); [L7] havoc ~#arr~0; [L13] #res := #t~ret0; [L13] havoc #t~ret0; [L17] ~a~0 := #t~ret1; [L17] havoc #t~ret1; [L18] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L18] FCALL call #t~mem4 := read~int(~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L18] FCALL call #t~string3 := #Ultimate.alloc(4); [L18] FCALL call write~init~int(37, { base: #t~string3!base, offset: #t~string3!offset }, 1); [L18] FCALL call write~init~int(100, { base: #t~string3!base, offset: 1 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(10, { base: #t~string3!base, offset: 2 + #t~string3!offset }, 1); [L18] FCALL call write~init~int(0, { base: #t~string3!base, offset: 3 + #t~string3!offset }, 1); [L12] havoc ~arr~1; [L5] FCALL call ~#arr~0 := #Ultimate.alloc(4096); VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L6] FCALL call write~int(13, { base: ~#arr~0!base, offset: 776 + ~#arr~0!offset }, 4); [L7] #res := { base: ~#arr~0!base, offset: 4 + ~#arr~0!offset }; [L5] FCALL call ULTIMATE.dealloc(~#arr~0); [L7] havoc ~#arr~0; [L13] #res := #t~ret0; [L13] havoc #t~ret0; [L17] ~a~0 := #t~ret1; [L17] havoc #t~ret1; [L18] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L18] FCALL call #t~mem4 := read~int(~a~0, 4); [?] requires 1 == #valid[#ptr.base]; VAL [#NULL!base=0, #NULL!offset=0, #t~string3!base=5, #t~string3!offset=0] [L12] int arr[123]; [L5] int arr[1024]; [L6] arr[194] = 13 [L7] return arr + 1; [L7] return arr + 1; [L13] return foo2(); [L17] int *a = foo(); [L18] \read(*a) ----- [2018-11-23 00:28:20,849 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23f1767d-a78b-4e60-9f7e-c79069074187/bin-2019/ukojak/witness.graphml [2018-11-23 00:28:20,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:28:20,850 INFO L168 Benchmark]: Toolchain (without parser) took 859.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -110.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:28:20,851 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:28:20,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:28:20,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.49 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:28:20,852 INFO L168 Benchmark]: Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:28:20,853 INFO L168 Benchmark]: RCFGBuilder took 222.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:28:20,853 INFO L168 Benchmark]: CodeCheck took 409.64 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-23 00:28:20,853 INFO L168 Benchmark]: Witness Printer took 31.87 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:28:20,855 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 16 locations, 5 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 18 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 18]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L12] int arr[123]; [L5] int arr[1024]; [L6] arr[194] = 13 [L7] return arr + 1; [L7] return arr + 1; [L13] return foo2(); [L17] int *a = foo(); [L18] \read(*a) * 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.49 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 222.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * CodeCheck took 409.64 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 31.87 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...