./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash 072df04afae5ae28487e0b8208c52f13961dea34 ................................................................................................................................................................................................................................................................................................................................................... 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 20:19:23,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:19:23,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:19:23,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:19:23,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:19:23,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:19:23,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:19:23,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:19:23,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:19:23,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:19:23,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:19:23,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:19:23,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:19:23,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:19:23,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:19:23,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:19:23,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:19:23,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:19:23,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:19:23,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:19:23,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:19:23,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:19:23,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:19:23,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:19:23,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:19:23,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:19:23,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:19:23,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:19:23,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:19:23,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:19:23,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:19:23,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:19:23,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:19:23,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:19:23,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:19:23,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:19:23,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:19:23,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:19:23,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:19:23,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:19:23,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:19:23,317 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-28 20:19:23,355 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:19:23,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:19:23,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:19:23,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:19:23,357 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:19:23,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:19:23,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:19:23,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:19:23,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:19:23,360 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:19:23,361 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:19:23,361 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:19:23,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:19:23,361 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:19:23,363 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:19:23,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:19:23,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:19:23,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:19:23,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:19:23,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:19:23,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:19:23,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:19:23,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:19:23,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:19:23,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:19:23,365 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2019-11-28 20:19:23,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:19:23,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:19:23,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:19:23,698 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:19:23,698 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:19:23,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-11-28 20:19:23,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7e1ac300/878d0487d1be48288a005acbc217a1e2/FLAG0e5d95ca2 [2019-11-28 20:19:24,217 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:19:24,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-11-28 20:19:24,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7e1ac300/878d0487d1be48288a005acbc217a1e2/FLAG0e5d95ca2 [2019-11-28 20:19:24,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7e1ac300/878d0487d1be48288a005acbc217a1e2 [2019-11-28 20:19:24,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:19:24,657 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:19:24,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:24,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:19:24,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:19:24,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f57c6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24, skipping insertion in model container [2019-11-28 20:19:24,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:19:24,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:19:24,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:24,863 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:19:24,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:24,902 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:19:24,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24 WrapperNode [2019-11-28 20:19:24,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:24,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:19:24,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:19:24,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:19:24,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (1/1) ... [2019-11-28 20:19:24,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:19:24,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:19:24,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:19:24,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:19:24,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (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 20:19:25,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:19:25,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:19:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:19:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:19:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:19:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:19:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:19:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:19:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:19:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:19:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:19:25,330 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:19:25,330 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 20:19:25,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:25 BoogieIcfgContainer [2019-11-28 20:19:25,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:19:25,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:19:25,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:19:25,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:19:25,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:19:24" (1/3) ... [2019-11-28 20:19:25,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d21c7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:25, skipping insertion in model container [2019-11-28 20:19:25,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:24" (2/3) ... [2019-11-28 20:19:25,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d21c7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:25, skipping insertion in model container [2019-11-28 20:19:25,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:25" (3/3) ... [2019-11-28 20:19:25,357 INFO L109 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2019-11-28 20:19:25,375 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:19:25,382 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-11-28 20:19:25,391 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-11-28 20:19:25,410 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:19:25,410 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:19:25,410 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:19:25,410 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:19:25,410 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:19:25,411 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:19:25,411 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:19:25,411 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:19:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-28 20:19:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:19:25,435 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:25,436 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:25,437 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-11-28 20:19:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:25,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1997870250, now seen corresponding path program 1 times [2019-11-28 20:19:25,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:25,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090466325] [2019-11-28 20:19:25,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:25,659 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 20:19:25,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090466325] [2019-11-28 20:19:25,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:25,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:19:25,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238533265] [2019-11-28 20:19:25,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:25,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:25,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:25,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:25,681 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2019-11-28 20:19:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:25,797 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-11-28 20:19:25,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:19:25,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:19:25,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:25,809 INFO L225 Difference]: With dead ends: 26 [2019-11-28 20:19:25,809 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 20:19:25,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:25,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 20:19:25,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 20:19:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 20:19:25,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-11-28 20:19:25,846 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 7 [2019-11-28 20:19:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:25,847 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-11-28 20:19:25,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:25,847 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-11-28 20:19:25,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:19:25,848 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:25,848 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:25,848 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-11-28 20:19:25,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:25,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1997870251, now seen corresponding path program 1 times [2019-11-28 20:19:25,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:25,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477892891] [2019-11-28 20:19:25,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:25,943 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 20:19:25,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477892891] [2019-11-28 20:19:25,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:25,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:19:25,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926347903] [2019-11-28 20:19:25,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:25,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:25,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:25,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:25,947 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 4 states. [2019-11-28 20:19:26,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:26,002 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-28 20:19:26,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:19:26,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:19:26,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:26,004 INFO L225 Difference]: With dead ends: 18 [2019-11-28 20:19:26,004 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 20:19:26,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:26,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 20:19:26,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 20:19:26,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 20:19:26,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-28 20:19:26,009 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2019-11-28 20:19:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:26,010 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-28 20:19:26,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-28 20:19:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 20:19:26,011 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:26,011 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:26,011 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-11-28 20:19:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:26,012 INFO L82 PathProgramCache]: Analyzing trace with hash -270538361, now seen corresponding path program 1 times [2019-11-28 20:19:26,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:26,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873871889] [2019-11-28 20:19:26,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:26,099 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 20:19:26,100 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873871889] [2019-11-28 20:19:26,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:26,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:19:26,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461464237] [2019-11-28 20:19:26,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:19:26,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:26,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:19:26,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:19:26,102 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2019-11-28 20:19:26,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:26,139 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-11-28 20:19:26,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:19:26,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 20:19:26,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:26,141 INFO L225 Difference]: With dead ends: 17 [2019-11-28 20:19:26,141 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:19:26,141 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:19:26,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:19:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:19:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:19:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:19:26,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-28 20:19:26,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:26,143 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:19:26,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:19:26,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:19:26,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:19:26,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:19:26 BoogieIcfgContainer [2019-11-28 20:19:26,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:19:26,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:19:26,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:19:26,151 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:19:26,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:25" (3/4) ... [2019-11-28 20:19:26,156 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:19:26,164 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 20:19:26,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 20:19:26,170 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-28 20:19:26,171 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 20:19:26,171 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:26,171 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:26,219 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:19:26,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:19:26,222 INFO L168 Benchmark]: Toolchain (without parser) took 1564.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -102.6 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:26,222 INFO L168 Benchmark]: CDTParser took 0.28 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 20:19:26,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.19 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:26,224 INFO L168 Benchmark]: Boogie Preprocessor took 84.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:26,225 INFO L168 Benchmark]: RCFGBuilder took 343.09 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:26,226 INFO L168 Benchmark]: TraceAbstraction took 818.33 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: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:26,226 INFO L168 Benchmark]: Witness Printer took 68.61 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:26,230 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 245.19 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 343.09 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 818.33 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: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.61 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 11 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 31 SDslu, 24 SDs, 0 SdLazy, 81 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...