./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 30f4e4ab 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 0.1.24-30f4e4a [2019-11-28 02:46:42,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:46:42,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:46:42,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:46:42,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:46:42,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:46:42,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:46:42,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:46:42,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:46:42,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:46:42,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:46:42,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:46:42,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:46:42,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:46:42,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:46:42,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:46:42,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:46:42,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:46:42,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:46:42,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:46:42,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:46:42,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:46:42,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:46:42,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:46:42,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:46:42,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:46:42,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:46:42,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:46:42,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:46:42,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:46:42,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:46:42,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:46:42,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:46:42,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:46:42,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:46:42,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:46:42,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:46:42,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:46:42,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:46:42,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:46:42,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:46:42,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:46:42,579 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:46:42,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:46:42,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:46:42,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:46:42,581 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:46:42,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:46:42,582 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:46:42,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:46:42,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:46:42,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:46:42,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:46:42,583 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:46:42,583 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:46:42,583 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:46:42,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:46:42,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:46:42,584 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:46:42,584 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:46:42,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:46:42,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:46:42,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:46:42,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:46:42,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:46:42,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:46:42,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:46:42,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:46:42,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:46:42,587 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 02:46:42,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:46:42,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:46:42,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:46:42,949 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:46:42,950 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:46:42,951 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-11-28 02:46:43,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5da1a03/137bf464821e4fd6a38ff85d0485d7a6/FLAG9779869be [2019-11-28 02:46:43,486 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:46:43,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-11-28 02:46:43,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5da1a03/137bf464821e4fd6a38ff85d0485d7a6/FLAG9779869be [2019-11-28 02:46:43,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5da1a03/137bf464821e4fd6a38ff85d0485d7a6 [2019-11-28 02:46:43,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:46:43,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:46:43,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:46:43,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:46:43,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:46:43,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:46:43" (1/1) ... [2019-11-28 02:46:43,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f3499a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:43, skipping insertion in model container [2019-11-28 02:46:43,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:46:43" (1/1) ... [2019-11-28 02:46:43,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:46:43,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:46:44,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:46:44,133 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:46:44,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:46:44,170 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:46:44,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44 WrapperNode [2019-11-28 02:46:44,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:46:44,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:46:44,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:46:44,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:46:44,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (1/1) ... [2019-11-28 02:46:44,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (1/1) ... [2019-11-28 02:46:44,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (1/1) ... [2019-11-28 02:46:44,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (1/1) ... [2019-11-28 02:46:44,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (1/1) ... [2019-11-28 02:46:44,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (1/1) ... [2019-11-28 02:46:44,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (1/1) ... [2019-11-28 02:46:44,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:46:44,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:46:44,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:46:44,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:46:44,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (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 02:46:44,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:46:44,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:46:44,330 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2019-11-28 02:46:44,330 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-28 02:46:44,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:46:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-28 02:46:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2019-11-28 02:46:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:46:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-28 02:46:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:46:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 02:46:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:46:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:46:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 02:46:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:46:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:46:44,632 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:46:44,633 INFO L297 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 02:46:44,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:46:44 BoogieIcfgContainer [2019-11-28 02:46:44,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:46:44,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:46:44,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:46:44,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:46:44,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:46:43" (1/3) ... [2019-11-28 02:46:44,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b33a0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:46:44, skipping insertion in model container [2019-11-28 02:46:44,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:46:44" (2/3) ... [2019-11-28 02:46:44,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b33a0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:46:44, skipping insertion in model container [2019-11-28 02:46:44,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:46:44" (3/3) ... [2019-11-28 02:46:44,643 INFO L109 eAbstractionObserver]: Analyzing ICFG scopes4-1.c [2019-11-28 02:46:44,654 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:46:44,661 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-28 02:46:44,674 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-28 02:46:44,696 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:46:44,696 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:46:44,696 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:46:44,697 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:46:44,697 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:46:44,697 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:46:44,697 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:46:44,697 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:46:44,713 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-28 02:46:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:46:44,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:46:44,723 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:46:44,724 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 02:46:44,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:46:44,730 INFO L82 PathProgramCache]: Analyzing trace with hash -325957377, now seen corresponding path program 1 times [2019-11-28 02:46:44,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:46:44,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722894571] [2019-11-28 02:46:44,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:46:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,075 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 02:46:45,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722894571] [2019-11-28 02:46:45,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:46:45,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:46:45,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575077739] [2019-11-28 02:46:45,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:46:45,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:46:45,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:46:45,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:46:45,105 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 4 states. [2019-11-28 02:46:45,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:46:45,253 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-28 02:46:45,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:46:45,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 02:46:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:46:45,267 INFO L225 Difference]: With dead ends: 24 [2019-11-28 02:46:45,267 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 02:46:45,269 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 02:46:45,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 02:46:45,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 02:46:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 02:46:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-28 02:46:45,308 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 8 [2019-11-28 02:46:45,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:46:45,309 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-28 02:46:45,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:46:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-28 02:46:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:46:45,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:46:45,311 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:46:45,311 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 02:46:45,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:46:45,312 INFO L82 PathProgramCache]: Analyzing trace with hash -325957376, now seen corresponding path program 1 times [2019-11-28 02:46:45,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:46:45,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827641037] [2019-11-28 02:46:45,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:46:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,440 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 02:46:45,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827641037] [2019-11-28 02:46:45,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:46:45,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:46:45,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488137059] [2019-11-28 02:46:45,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:46:45,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:46:45,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:46:45,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:46:45,445 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 4 states. [2019-11-28 02:46:45,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:46:45,540 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-28 02:46:45,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:46:45,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 02:46:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:46:45,542 INFO L225 Difference]: With dead ends: 18 [2019-11-28 02:46:45,542 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 02:46:45,543 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 02:46:45,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 02:46:45,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 02:46:45,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 02:46:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-28 02:46:45,548 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2019-11-28 02:46:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:46:45,549 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-28 02:46:45,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:46:45,549 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-28 02:46:45,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 02:46:45,550 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:46:45,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:46:45,551 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 02:46:45,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:46:45,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979706, now seen corresponding path program 1 times [2019-11-28 02:46:45,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:46:45,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263641404] [2019-11-28 02:46:45,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:46:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:45,759 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 02:46:45,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263641404] [2019-11-28 02:46:45,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:46:45,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-28 02:46:45,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177669745] [2019-11-28 02:46:45,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 02:46:45,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:46:45,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 02:46:45,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:46:45,762 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2019-11-28 02:46:45,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:46:45,987 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-11-28 02:46:45,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 02:46:45,988 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-11-28 02:46:45,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:46:45,989 INFO L225 Difference]: With dead ends: 17 [2019-11-28 02:46:45,989 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 02:46:45,990 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 02:46:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 02:46:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 02:46:45,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 02:46:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2019-11-28 02:46:45,994 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2019-11-28 02:46:45,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:46:45,995 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2019-11-28 02:46:45,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 02:46:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2019-11-28 02:46:45,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 02:46:45,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:46:45,996 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:46:45,996 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-11-28 02:46:45,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:46:45,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979705, now seen corresponding path program 1 times [2019-11-28 02:46:45,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:46:45,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130764004] [2019-11-28 02:46:45,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:46:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:46:46,263 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 02:46:46,265 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130764004] [2019-11-28 02:46:46,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:46:46,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-28 02:46:46,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502970761] [2019-11-28 02:46:46,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-28 02:46:46,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:46:46,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-28 02:46:46,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-28 02:46:46,269 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 11 states. [2019-11-28 02:46:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:46:46,551 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-11-28 02:46:46,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 02:46:46,551 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2019-11-28 02:46:46,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:46:46,552 INFO L225 Difference]: With dead ends: 16 [2019-11-28 02:46:46,552 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:46:46,553 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 02:46:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:46:46,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:46:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:46:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:46:46,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-11-28 02:46:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:46:46,557 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:46:46,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-28 02:46:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:46:46,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:46:46,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:46:46 BoogieIcfgContainer [2019-11-28 02:46:46,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:46:46,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:46:46,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:46:46,568 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:46:46,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:46:44" (3/4) ... [2019-11-28 02:46:46,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:46:46,583 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 02:46:46,583 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2019-11-28 02:46:46,584 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 02:46:46,584 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo2 [2019-11-28 02:46:46,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-28 02:46:46,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 02:46:46,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 02:46:46,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 02:46:46,657 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:46:46,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:46:46,660 INFO L168 Benchmark]: Toolchain (without parser) took 2767.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 956.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 144.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:46:46,661 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:46:46,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.49 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:46:46,663 INFO L168 Benchmark]: Boogie Preprocessor took 98.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -197.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:46:46,663 INFO L168 Benchmark]: RCFGBuilder took 360.60 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:46:46,664 INFO L168 Benchmark]: TraceAbstraction took 1930.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.6 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:46:46,665 INFO L168 Benchmark]: Witness Printer took 90.56 ms. Allocated memory is still 1.2 GB. Free memory is still 956.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:46:46,668 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.49 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -197.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 360.60 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1930.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.6 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. * Witness Printer took 90.56 ms. Allocated memory is still 1.2 GB. Free memory is still 956.6 MB. There was no memory consumed. 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: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 40 SDslu, 54 SDs, 0 SdLazy, 197 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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, 0.7s 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...