./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.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 f0256cff7505d5abe903a80b10a1172a40306545 ........................................................................................................................................................................................................................................ 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 0.1.25-906a4fb [2020-10-19 17:58:52,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:58:52,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:58:53,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:58:53,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:58:53,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:58:53,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:58:53,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:58:53,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:58:53,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:58:53,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:58:53,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:58:53,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:58:53,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:58:53,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:58:53,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:58:53,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:58:53,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:58:53,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:58:53,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:58:53,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:58:53,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:58:53,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:58:53,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:58:53,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:58:53,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:58:53,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:58:53,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:58:53,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:58:53,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:58:53,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:58:53,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:58:53,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:58:53,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:58:53,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:58:53,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:58:53,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:58:53,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:58:53,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:58:53,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:58:53,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:58:53,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:58:53,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:58:53,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:58:53,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:58:53,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:58:53,081 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:58:53,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:58:53,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:58:53,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:58:53,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:58:53,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:58:53,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:58:53,083 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:58:53,083 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:58:53,084 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:58:53,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:58:53,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:58:53,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:58:53,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:58:53,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:58:53,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:58:53,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:58:53,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:58:53,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:58:53,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:58:53,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:58:53,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:58:53,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:58:53,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:58:53,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> f0256cff7505d5abe903a80b10a1172a40306545 [2020-10-19 17:58:53,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:58:53,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:58:53,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:58:53,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:58:53,445 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:58:53,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2020-10-19 17:58:53,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b068fe733/8b4ff50ea60d4e6cb86ca08c8317c39a/FLAG2813ccfc1 [2020-10-19 17:58:53,958 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:58:53,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2020-10-19 17:58:53,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b068fe733/8b4ff50ea60d4e6cb86ca08c8317c39a/FLAG2813ccfc1 [2020-10-19 17:58:54,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b068fe733/8b4ff50ea60d4e6cb86ca08c8317c39a [2020-10-19 17:58:54,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:58:54,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:58:54,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:58:54,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:58:54,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:58:54,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9403c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54, skipping insertion in model container [2020-10-19 17:58:54,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:58:54,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:58:54,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:58:54,600 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:58:54,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:58:54,639 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:58:54,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54 WrapperNode [2020-10-19 17:58:54,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:58:54,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:58:54,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:58:54,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:58:54,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:58:54,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:58:54,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:58:54,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:58:54,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (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 [2020-10-19 17:58:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:58:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:58:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2020-10-19 17:58:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:58:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:58:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2020-10-19 17:58:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 17:58:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:58:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:58:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:58:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 17:58:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:58:55,043 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:58:55,044 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 17:58:55,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:58:55 BoogieIcfgContainer [2020-10-19 17:58:55,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:58:55,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:58:55,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:58:55,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:58:55,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:58:54" (1/3) ... [2020-10-19 17:58:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d95176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:58:55, skipping insertion in model container [2020-10-19 17:58:55,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (2/3) ... [2020-10-19 17:58:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d95176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:58:55, skipping insertion in model container [2020-10-19 17:58:55,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:58:55" (3/3) ... [2020-10-19 17:58:55,055 INFO L111 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe.c [2020-10-19 17:58:55,068 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:58:55,076 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-19 17:58:55,091 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-19 17:58:55,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:58:55,113 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:58:55,113 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:58:55,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:58:55,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:58:55,114 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:58:55,114 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:58:55,114 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:58:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-19 17:58:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:58:55,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:58:55,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:58:55,141 INFO L429 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 17:58:55,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:58:55,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1028467452, now seen corresponding path program 1 times [2020-10-19 17:58:55,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 17:58:55,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949894745] [2020-10-19 17:58:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 17:58:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 17:58:55,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 17:58:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 17:58:55,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 17:58:55,322 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 17:58:55,323 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 17:58:55,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 17:58:55,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 05:58:55 BoogieIcfgContainer [2020-10-19 17:58:55,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 17:58:55,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 17:58:55,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 17:58:55,348 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 17:58:55,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:58:55" (3/4) ... [2020-10-19 17:58:55,351 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 17:58:55,395 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 17:58:55,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 17:58:55,398 INFO L168 Benchmark]: Toolchain (without parser) took 1068.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:58:55,399 INFO L168 Benchmark]: CDTParser took 0.54 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. [2020-10-19 17:58:55,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.72 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 17:58:55,401 INFO L168 Benchmark]: Boogie Preprocessor took 108.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-10-19 17:58:55,402 INFO L168 Benchmark]: RCFGBuilder took 297.31 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-10-19 17:58:55,402 INFO L168 Benchmark]: TraceAbstraction took 300.07 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-10-19 17:58:55,403 INFO L168 Benchmark]: Witness Printer took 47.88 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. [2020-10-19 17:58:55,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 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 301.72 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 108.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 297.31 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 300.07 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.88 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: 11]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L17] int* numbers; [L18] int array_size = __VERIFIER_nondet_int(); [L19] CALL sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=1, numbers={4:-2}] [L5] int i, sum; [L6] char* p; [L7] sum = 0 [L8] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, sum=0] [L8] COND TRUE i < array_size [L9] p = &(numbers[i]) [L10] p = p + 2 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, p={4:0}, sum=0] [L11] \read(*p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 3 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=23occurred 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, 10 NumberOfCodeBlocks, 10 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...