./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/scopes4-1.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/scopes4-1.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 87dcbb1d4539995e5aba39e6053775ca0fac811e ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:19:11,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:19:11,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:19:11,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:19:11,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:19:11,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:19:11,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:19:11,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:19:11,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:19:11,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:19:11,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:19:11,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:19:11,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:19:11,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:19:11,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:19:11,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:19:11,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:19:11,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:19:11,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:19:11,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:19:11,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:19:11,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:19:11,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:19:11,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:19:11,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:19:11,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:19:11,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:19:11,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:19:11,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:19:11,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:19:11,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:19:11,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:19:11,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:19:11,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:19:11,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:19:11,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:19:11,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:19:11,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:19:11,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:19:11,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:19:11,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:19:11,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:19:11,516 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:19:11,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:19:11,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:19:11,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:19:11,518 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:19:11,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:19:11,519 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:19:11,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:19:11,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:19:11,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:19:11,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:19:11,520 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:19:11,520 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:19:11,520 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:19:11,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:19:11,520 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:19:11,521 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:19:11,521 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:19:11,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:19:11,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:19:11,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:19:11,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:19:11,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:19:11,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:19:11,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:19:11,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:19:11,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:19:11,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:19:11,523 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 -> 87dcbb1d4539995e5aba39e6053775ca0fac811e [2019-11-28 20:19:11,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:19:11,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:19:11,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:19:11,853 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:19:11,854 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:19:11,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-11-28 20:19:11,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5bd34fd/6d82a2cd2ef5441cbdadf1580696187e/FLAG7c4aa3f61 [2019-11-28 20:19:12,437 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:19:12,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-11-28 20:19:12,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5bd34fd/6d82a2cd2ef5441cbdadf1580696187e/FLAG7c4aa3f61 [2019-11-28 20:19:12,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5bd34fd/6d82a2cd2ef5441cbdadf1580696187e [2019-11-28 20:19:12,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:19:12,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:19:12,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:12,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:19:12,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:19:12,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:12" (1/1) ... [2019-11-28 20:19:12,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb1dd1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:12, skipping insertion in model container [2019-11-28 20:19:12,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:12" (1/1) ... [2019-11-28 20:19:12,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:19:12,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:19:13,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:13,117 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:19:13,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:13,206 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:19:13,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13 WrapperNode [2019-11-28 20:19:13,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:13,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:19:13,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:19:13,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:19:13,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (1/1) ... [2019-11-28 20:19:13,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (1/1) ... [2019-11-28 20:19:13,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (1/1) ... [2019-11-28 20:19:13,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (1/1) ... [2019-11-28 20:19:13,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (1/1) ... [2019-11-28 20:19:13,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (1/1) ... [2019-11-28 20:19:13,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (1/1) ... [2019-11-28 20:19:13,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:19:13,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:19:13,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:19:13,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:19:13,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (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 20:19:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:19:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:19:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2019-11-28 20:19:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-28 20:19:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:19:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-28 20:19:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2019-11-28 20:19:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:19:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-28 20:19:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:19:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:19:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:19:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:19:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:19:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:19:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:19:13,597 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:19:13,597 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 20:19:13,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:13 BoogieIcfgContainer [2019-11-28 20:19:13,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:19:13,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:19:13,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:19:13,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:19:13,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:19:12" (1/3) ... [2019-11-28 20:19:13,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7867a8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:13, skipping insertion in model container [2019-11-28 20:19:13,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:13" (2/3) ... [2019-11-28 20:19:13,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7867a8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:13, skipping insertion in model container [2019-11-28 20:19:13,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:13" (3/3) ... [2019-11-28 20:19:13,606 INFO L109 eAbstractionObserver]: Analyzing ICFG scopes4-1.c [2019-11-28 20:19:13,621 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:19:13,639 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-28 20:19:13,652 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-28 20:19:13,669 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:19:13,670 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:19:13,670 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:19:13,670 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:19:13,670 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:19:13,670 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:19:13,670 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:19:13,670 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:19:13,683 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-28 20:19:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 20:19:13,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:13,694 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:13,694 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 20:19:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:13,700 INFO L82 PathProgramCache]: Analyzing trace with hash -325957377, now seen corresponding path program 1 times [2019-11-28 20:19:13,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:13,707 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763532289] [2019-11-28 20:19:13,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:14,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763532289] [2019-11-28 20:19:14,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:14,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:19:14,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515218903] [2019-11-28 20:19:14,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:14,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:14,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:14,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:14,030 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 4 states. [2019-11-28 20:19:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:14,185 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-28 20:19:14,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:19:14,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 20:19:14,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:14,198 INFO L225 Difference]: With dead ends: 24 [2019-11-28 20:19:14,198 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 20:19:14,201 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:19:14,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 20:19:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 20:19:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 20:19:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-28 20:19:14,243 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 8 [2019-11-28 20:19:14,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:14,244 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-28 20:19:14,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:14,244 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-28 20:19:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 20:19:14,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:14,245 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:14,245 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 20:19:14,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:14,246 INFO L82 PathProgramCache]: Analyzing trace with hash -325957376, now seen corresponding path program 1 times [2019-11-28 20:19:14,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:14,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993044542] [2019-11-28 20:19:14,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:14,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:14,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993044542] [2019-11-28 20:19:14,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:14,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:19:14,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245324259] [2019-11-28 20:19:14,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:14,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:14,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:14,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:14,406 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 4 states. [2019-11-28 20:19:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:14,515 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-28 20:19:14,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:19:14,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 20:19:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:14,517 INFO L225 Difference]: With dead ends: 18 [2019-11-28 20:19:14,517 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 20:19:14,519 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:19:14,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 20:19:14,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 20:19:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 20:19:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-28 20:19:14,524 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2019-11-28 20:19:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:14,525 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-28 20:19:14,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-28 20:19:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:19:14,526 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:14,526 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:14,527 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 20:19:14,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:14,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979706, now seen corresponding path program 1 times [2019-11-28 20:19:14,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:14,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862102377] [2019-11-28 20:19:14,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:14,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862102377] [2019-11-28 20:19:14,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:14,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-28 20:19:14,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791412611] [2019-11-28 20:19:14,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 20:19:14,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:14,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 20:19:14,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:19:14,705 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2019-11-28 20:19:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:14,932 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-11-28 20:19:14,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 20:19:14,933 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-11-28 20:19:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:14,934 INFO L225 Difference]: With dead ends: 17 [2019-11-28 20:19:14,934 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 20:19:14,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-11-28 20:19:14,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 20:19:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 20:19:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 20:19:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2019-11-28 20:19:14,940 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2019-11-28 20:19:14,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:14,940 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2019-11-28 20:19:14,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 20:19:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2019-11-28 20:19:14,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:19:14,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:14,942 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:14,942 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 20:19:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:14,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979705, now seen corresponding path program 1 times [2019-11-28 20:19:14,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:14,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417384809] [2019-11-28 20:19:14,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:15,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:15,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417384809] [2019-11-28 20:19:15,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:15,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-28 20:19:15,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461485658] [2019-11-28 20:19:15,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-28 20:19:15,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:15,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-28 20:19:15,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:19:15,209 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 11 states. [2019-11-28 20:19:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:15,482 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-11-28 20:19:15,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 20:19:15,482 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2019-11-28 20:19:15,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:15,483 INFO L225 Difference]: With dead ends: 16 [2019-11-28 20:19:15,483 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:19:15,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2019-11-28 20:19:15,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:19:15,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:19:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:19:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:19:15,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-11-28 20:19:15,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:15,485 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:19:15,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-28 20:19:15,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:19:15,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:19:15,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:19:15 BoogieIcfgContainer [2019-11-28 20:19:15,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:19:15,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:19:15,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:19:15,498 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:19:15,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:13" (3/4) ... [2019-11-28 20:19:15,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:19:15,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 20:19:15,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2019-11-28 20:19:15,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 20:19:15,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo2 [2019-11-28 20:19:15,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-28 20:19:15,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 20:19:15,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:15,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:15,610 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:19:15,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:19:15,613 INFO L168 Benchmark]: Toolchain (without parser) took 2753.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.7 MB in the beginning and 934.4 MB in the end (delta: 23.3 MB). Peak memory consumption was 148.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:15,614 INFO L168 Benchmark]: CDTParser took 0.34 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 20:19:15,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:15,616 INFO L168 Benchmark]: Boogie Preprocessor took 57.04 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:15,617 INFO L168 Benchmark]: RCFGBuilder took 333.09 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:15,623 INFO L168 Benchmark]: TraceAbstraction took 1896.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.1 MB in the end (delta: 154.6 MB). Peak memory consumption was 154.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:15,623 INFO L168 Benchmark]: Witness Printer took 113.25 ms. Allocated memory is still 1.2 GB. Free memory was 941.1 MB in the beginning and 934.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:15,634 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 348.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.04 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 333.09 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1896.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.1 MB in the end (delta: 154.6 MB). Peak memory consumption was 154.6 MB. Max. memory is 11.5 GB. * Witness Printer took 113.25 ms. Allocated memory is still 1.2 GB. Free memory was 941.1 MB in the beginning and 934.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 5 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 40 SDslu, 54 SDs, 0 SdLazy, 197 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 4382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 correct! Received shutdown request...