./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/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 0.1.25-906a4fb [2020-10-19 18:24:32,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:24:32,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:24:32,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:24:32,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:24:32,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:24:32,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:24:32,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:24:32,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:24:32,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:24:32,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:24:32,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:24:32,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:24:32,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:24:32,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:24:32,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:24:32,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:24:32,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:24:32,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:24:32,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:24:32,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:24:32,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:24:32,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:24:32,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:24:32,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:24:32,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:24:32,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:24:32,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:24:32,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:24:32,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:24:32,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:24:32,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:24:32,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:24:32,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:24:32,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:24:32,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:24:32,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:24:32,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:24:32,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:24:32,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:24:32,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:24:32,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-10-19 18:24:32,384 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:24:32,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:24:32,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:24:32,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:24:32,386 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:24:32,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:24:32,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:24:32,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:24:32,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:24:32,388 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:24:32,388 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:24:32,389 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:24:32,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:24:32,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:24:32,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:24:32,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:24:32,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:24:32,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:24:32,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:24:32,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:24:32,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:24:32,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:24:32,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:24:32,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:24:32,393 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:24:32,393 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 [2020-10-19 18:24:32,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:24:32,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:24:32,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:24:32,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:24:32,764 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:24:32,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-10-19 18:24:32,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7980a4225/7cf4cc3d11324bb0b242c259ea29bb18/FLAG740ac1aaf [2020-10-19 18:24:33,282 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:24:33,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-10-19 18:24:33,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7980a4225/7cf4cc3d11324bb0b242c259ea29bb18/FLAG740ac1aaf [2020-10-19 18:24:33,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7980a4225/7cf4cc3d11324bb0b242c259ea29bb18 [2020-10-19 18:24:33,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:24:33,693 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:24:33,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:24:33,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:24:33,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:24:33,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:33,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bd4445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33, skipping insertion in model container [2020-10-19 18:24:33,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:33,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:24:33,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:24:33,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:24:33,909 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:24:33,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:24:33,947 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:24:33,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33 WrapperNode [2020-10-19 18:24:33,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:24:33,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:24:33,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:24:33,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:24:34,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:34,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:34,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:34,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:34,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:34,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:34,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... [2020-10-19 18:24:34,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:24:34,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:24:34,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:24:34,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:24:34,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:24:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:24:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:24:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:24:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:24:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:24:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:24:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:24:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:24:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:24:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:24:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:24:34,348 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:24:34,349 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:24:34,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:34 BoogieIcfgContainer [2020-10-19 18:24:34,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:24:34,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:24:34,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:24:34,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:24:34,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:24:33" (1/3) ... [2020-10-19 18:24:34,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4222ac05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:24:34, skipping insertion in model container [2020-10-19 18:24:34,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:33" (2/3) ... [2020-10-19 18:24:34,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4222ac05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:24:34, skipping insertion in model container [2020-10-19 18:24:34,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:34" (3/3) ... [2020-10-19 18:24:34,361 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2020-10-19 18:24:34,373 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:24:34,380 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-19 18:24:34,392 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-19 18:24:34,411 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:24:34,411 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:24:34,411 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:24:34,411 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:24:34,411 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:24:34,411 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:24:34,412 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:24:34,412 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:24:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-19 18:24:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:24:34,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:34,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:34,438 INFO L429 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]=== [2020-10-19 18:24:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:34,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1997870250, now seen corresponding path program 1 times [2020-10-19 18:24:34,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:34,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756965573] [2020-10-19 18:24:34,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:34,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:34,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756965573] [2020-10-19 18:24:34,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:34,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:24:34,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728844347] [2020-10-19 18:24:34,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:24:34,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:34,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:24:34,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:34,675 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2020-10-19 18:24:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:34,863 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-10-19 18:24:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:24:34,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:24:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:34,875 INFO L225 Difference]: With dead ends: 26 [2020-10-19 18:24:34,876 INFO L226 Difference]: Without dead ends: 23 [2020-10-19 18:24:34,878 INFO L677 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 [2020-10-19 18:24:34,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-19 18:24:34,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-19 18:24:34,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-19 18:24:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-19 18:24:34,916 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 7 [2020-10-19 18:24:34,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:34,917 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-19 18:24:34,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:24:34,918 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-19 18:24:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:24:34,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:34,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:34,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:24:34,922 INFO L429 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]=== [2020-10-19 18:24:34,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:34,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1997870251, now seen corresponding path program 1 times [2020-10-19 18:24:34,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:34,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964848957] [2020-10-19 18:24:34,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:35,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:35,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964848957] [2020-10-19 18:24:35,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:35,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:24:35,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185576718] [2020-10-19 18:24:35,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:24:35,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:35,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:24:35,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:35,020 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 4 states. [2020-10-19 18:24:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:35,070 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-10-19 18:24:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:24:35,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:24:35,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:35,072 INFO L225 Difference]: With dead ends: 18 [2020-10-19 18:24:35,072 INFO L226 Difference]: Without dead ends: 18 [2020-10-19 18:24:35,073 INFO L677 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 [2020-10-19 18:24:35,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-19 18:24:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-19 18:24:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 18:24:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-10-19 18:24:35,078 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2020-10-19 18:24:35,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:35,078 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-10-19 18:24:35,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:24:35,079 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-10-19 18:24:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:24:35,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:35,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:35,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:24:35,080 INFO L429 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]=== [2020-10-19 18:24:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:35,081 INFO L82 PathProgramCache]: Analyzing trace with hash -270538361, now seen corresponding path program 1 times [2020-10-19 18:24:35,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:35,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764556744] [2020-10-19 18:24:35,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:35,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:35,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:35,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764556744] [2020-10-19 18:24:35,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:35,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:24:35,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397033803] [2020-10-19 18:24:35,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:35,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:35,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:35,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:35,168 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-10-19 18:24:35,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:35,195 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-10-19 18:24:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:24:35,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-19 18:24:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:35,196 INFO L225 Difference]: With dead ends: 17 [2020-10-19 18:24:35,196 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:24:35,197 INFO L677 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 [2020-10-19 18:24:35,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:24:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:24:35,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:24:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:24:35,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-19 18:24:35,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:35,198 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:24:35,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:24:35,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:24:35,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:24:35,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:24:35 BoogieIcfgContainer [2020-10-19 18:24:35,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:24:35,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:24:35,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:24:35,205 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:24:35,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:34" (3/4) ... [2020-10-19 18:24:35,208 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:24:35,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-19 18:24:35,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-19 18:24:35,220 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 18:24:35,220 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 18:24:35,220 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 18:24:35,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 18:24:35,264 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:24:35,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:24:35,267 INFO L168 Benchmark]: Toolchain (without parser) took 1578.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 960.0 MB in the beginning and 1.0 GB in the end (delta: -81.7 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:35,268 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:24:35,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.99 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:35,269 INFO L168 Benchmark]: Boogie Preprocessor took 91.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:35,270 INFO L168 Benchmark]: RCFGBuilder took 310.65 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:35,271 INFO L168 Benchmark]: TraceAbstraction took 851.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:35,272 INFO L168 Benchmark]: Witness Printer took 60.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:35,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.99 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 91.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 310.65 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 851.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. * Witness Printer took 60.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 0.0s 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...