./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/scopes2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/scopes2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a06ac35b6270d716926f4cab09091bb160bdd736 ........................................................................................................................................................................................................................................... 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 0.2.0-5485861 [2020-10-26 03:56:13,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:56:13,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:56:13,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:56:13,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:56:13,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:56:13,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:56:13,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:56:13,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:56:13,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:56:13,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:56:13,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:56:13,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:56:13,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:56:13,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:56:13,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:56:13,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:56:13,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:56:13,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:56:13,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:56:13,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:56:13,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:56:13,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:56:13,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:56:13,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:56:13,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:56:13,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:56:13,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:56:13,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:56:13,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:56:13,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:56:13,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:56:13,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:56:13,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:56:13,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:56:13,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:56:13,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:56:13,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:56:13,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:56:13,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:56:13,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:56:13,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-26 03:56:13,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:56:13,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:56:13,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:56:13,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:56:13,299 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:56:13,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:56:13,299 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:56:13,300 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:56:13,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:56:13,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:56:13,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:56:13,302 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:56:13,302 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:56:13,302 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:56:13,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:56:13,303 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:56:13,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:56:13,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:56:13,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:56:13,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:56:13,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:56:13,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:56:13,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:56:13,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:56:13,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:56:13,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:56:13,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:56:13,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:56:13,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a06ac35b6270d716926f4cab09091bb160bdd736 [2020-10-26 03:56:13,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:56:13,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:56:13,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:56:13,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:56:13,775 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:56:13,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/scopes2.c [2020-10-26 03:56:13,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0af69d7/719c8b31b5894e56b35d2e47ded104f7/FLAG8a34a3a0b [2020-10-26 03:56:14,444 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:56:14,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/scopes2.c [2020-10-26 03:56:14,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0af69d7/719c8b31b5894e56b35d2e47ded104f7/FLAG8a34a3a0b [2020-10-26 03:56:14,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0af69d7/719c8b31b5894e56b35d2e47ded104f7 [2020-10-26 03:56:14,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:56:14,476 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:56:14,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:56:14,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:56:14,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:56:14,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369ff306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14, skipping insertion in model container [2020-10-26 03:56:14,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:56:14,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:56:14,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:56:14,713 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:56:14,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:56:14,747 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:56:14,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14 WrapperNode [2020-10-26 03:56:14,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:56:14,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:56:14,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:56:14,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:56:14,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... [2020-10-26 03:56:14,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:56:14,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:56:14,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:56:14,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:56:14,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:56:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:56:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:56:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:56:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-26 03:56:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:56:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:56:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:56:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 03:56:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:56:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:56:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:56:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:56:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:56:15,153 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:56:15,154 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-26 03:56:15,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:15 BoogieIcfgContainer [2020-10-26 03:56:15,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:56:15,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:56:15,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:56:15,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:56:15,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:56:14" (1/3) ... [2020-10-26 03:56:15,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61a4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:56:15, skipping insertion in model container [2020-10-26 03:56:15,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:14" (2/3) ... [2020-10-26 03:56:15,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61a4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:56:15, skipping insertion in model container [2020-10-26 03:56:15,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:15" (3/3) ... [2020-10-26 03:56:15,166 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes2.c [2020-10-26 03:56:15,180 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:56:15,186 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-26 03:56:15,211 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 03:56:15,264 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:56:15,266 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:56:15,266 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:56:15,266 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:56:15,269 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:56:15,269 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:56:15,269 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:56:15,270 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:56:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-26 03:56:15,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-26 03:56:15,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:15,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:15,302 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-26 03:56:15,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:15,313 INFO L82 PathProgramCache]: Analyzing trace with hash 262489660, now seen corresponding path program 1 times [2020-10-26 03:56:15,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:15,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289064460] [2020-10-26 03:56:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:56:15,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:56:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:56:15,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:56:15,518 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 03:56:15,519 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:56:15,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:56:15,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:56:15 BoogieIcfgContainer [2020-10-26 03:56:15,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:56:15,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:56:15,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:56:15,544 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:56:15,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:15" (3/4) ... [2020-10-26 03:56:15,546 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 03:56:15,588 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:56:15,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:56:15,597 INFO L168 Benchmark]: Toolchain (without parser) took 1123.47 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 23.0 MB in the beginning and 44.2 MB in the end (delta: -21.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:15,597 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 46.1 MB. Free memory is still 24.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:56:15,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.28 ms. Allocated memory is still 60.8 MB. Free memory was 46.3 MB in the beginning and 37.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:15,599 INFO L168 Benchmark]: Boogie Preprocessor took 52.27 ms. Allocated memory is still 60.8 MB. Free memory was 37.3 MB in the beginning and 35.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:15,600 INFO L168 Benchmark]: RCFGBuilder took 353.17 ms. Allocated memory is still 60.8 MB. Free memory was 35.7 MB in the beginning and 39.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:15,601 INFO L168 Benchmark]: TraceAbstraction took 384.65 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 25.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:15,602 INFO L168 Benchmark]: Witness Printer took 50.32 ms. Allocated memory is still 60.8 MB. Free memory was 25.8 MB in the beginning and 44.2 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:15,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 46.1 MB. Free memory is still 24.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.28 ms. Allocated memory is still 60.8 MB. Free memory was 46.3 MB in the beginning and 37.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.27 ms. Allocated memory is still 60.8 MB. Free memory was 37.3 MB in the beginning and 35.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 353.17 ms. Allocated memory is still 60.8 MB. Free memory was 35.7 MB in the beginning and 39.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 384.65 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 25.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 50.32 ms. Allocated memory is still 60.8 MB. Free memory was 25.8 MB in the beginning and 44.2 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L5] int *myPointerA = ((void*) 0); [L6] int *myPointerB = ((void*) 0); [L8] COND TRUE __VERIFIER_nondet_int() [L10] int myNumberA = 7; [L11] myPointerA = &myNumberA [L10] int myNumberA = 7; VAL [myPointerA={8:0}, myPointerB={0:0}] [L15] int myNumberB = 3; [L16] myPointerB = &myNumberB VAL [myNumberB={5:0}, myPointerA={8:0}, myPointerB={5:0}] [L18] \read(*myPointerA) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...