./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 f470102c 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/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 0.1.25-f470102 [2019-11-28 20:19:09,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:19:09,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:19:09,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:19:09,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:19:09,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:19:09,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:19:09,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:19:09,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:19:09,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:19:09,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:19:09,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:19:09,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:19:09,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:19:09,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:19:09,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:19:09,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:19:09,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:19:09,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:19:09,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:19:09,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:19:09,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:19:09,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:19:09,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:19:09,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:19:09,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:19:09,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:19:09,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:19:09,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:19:09,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:19:09,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:19:09,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:19:09,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:19:09,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:19:09,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:19:09,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:19:09,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:19:09,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:19:09,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:19:09,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:19:09,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:19:09,789 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:19:09,803 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:19:09,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:19:09,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:19:09,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:19:09,808 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:19:09,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:19:09,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:19:09,809 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:19:09,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:19:09,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:19:09,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:19:09,810 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:19:09,810 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:19:09,810 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:19:09,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:19:09,811 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:19:09,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:19:09,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:19:09,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:19:09,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:19:09,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:19:09,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:19:09,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:19:09,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:19:09,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:19:09,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:19:09,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:19:09,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:19:09,815 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 -> a06ac35b6270d716926f4cab09091bb160bdd736 [2019-11-28 20:19:10,125 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:19:10,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:19:10,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:19:10,147 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:19:10,148 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:19:10,150 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/scopes2.c [2019-11-28 20:19:10,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076041b8d/2b33f66f23584d1d87b33c332446903e/FLAG4bb6355b2 [2019-11-28 20:19:10,659 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:19:10,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/scopes2.c [2019-11-28 20:19:10,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076041b8d/2b33f66f23584d1d87b33c332446903e/FLAG4bb6355b2 [2019-11-28 20:19:11,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076041b8d/2b33f66f23584d1d87b33c332446903e [2019-11-28 20:19:11,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:19:11,059 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:19:11,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:11,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:19:11,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:19:11,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f09578d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11, skipping insertion in model container [2019-11-28 20:19:11,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:19:11,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:19:11,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:11,289 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:19:11,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:11,323 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:19:11,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11 WrapperNode [2019-11-28 20:19:11,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:11,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:19:11,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:19:11,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:19:11,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:19:11,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:19:11,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:19:11,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:19:11,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (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 [2019-11-28 20:19:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:19:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:19:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:19:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-28 20:19:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:19:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:19:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:19:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:19:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:19:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:19:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:19:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:19:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:19:11,676 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:19:11,676 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 20:19:11,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:11 BoogieIcfgContainer [2019-11-28 20:19:11,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:19:11,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:19:11,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:19:11,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:19:11,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:19:11" (1/3) ... [2019-11-28 20:19:11,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e36306e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:11, skipping insertion in model container [2019-11-28 20:19:11,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (2/3) ... [2019-11-28 20:19:11,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e36306e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:11, skipping insertion in model container [2019-11-28 20:19:11,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:11" (3/3) ... [2019-11-28 20:19:11,710 INFO L109 eAbstractionObserver]: Analyzing ICFG scopes2.c [2019-11-28 20:19:11,737 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:19:11,750 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-28 20:19:11,780 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-28 20:19:11,807 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:19:11,807 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:19:11,807 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:19:11,807 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:19:11,808 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:19:11,808 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:19:11,808 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:19:11,809 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:19:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-28 20:19:11,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 20:19:11,830 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:11,831 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:11,831 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:19:11,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:11,836 INFO L82 PathProgramCache]: Analyzing trace with hash 262489660, now seen corresponding path program 1 times [2019-11-28 20:19:11,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:11,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782461519] [2019-11-28 20:19:11,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:19:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:19:11,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:19:11,996 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:19:12,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:19:12 BoogieIcfgContainer [2019-11-28 20:19:12,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:19:12,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:19:12,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:19:12,020 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:19:12,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:11" (3/4) ... [2019-11-28 20:19:12,023 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:19:12,071 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:19:12,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:19:12,074 INFO L168 Benchmark]: Toolchain (without parser) took 1013.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -108.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:12,074 INFO L168 Benchmark]: CDTParser took 1.97 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:19:12,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.29 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:12,078 INFO L168 Benchmark]: Boogie Preprocessor took 81.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:12,084 INFO L168 Benchmark]: RCFGBuilder took 272.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:12,085 INFO L168 Benchmark]: TraceAbstraction took 333.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:12,086 INFO L168 Benchmark]: Witness Printer took 51.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:19:12,094 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.97 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.29 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 272.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 333.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 51.22 ms. Allocated memory is still 1.1 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: 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. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...