java -Xmx8000000000 -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 --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:41:22,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:41:22,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:41:22,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:41:22,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:41:22,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:41:22,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:41:22,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:41:22,959 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:41:22,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:41:22,963 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:41:22,963 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:41:22,964 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:41:22,967 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:41:22,968 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:41:22,969 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:41:22,970 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:41:22,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:41:22,974 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:41:22,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:41:22,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:41:22,988 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:41:22,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:41:22,994 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:41:22,994 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:41:23,000 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:41:23,001 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:41:23,002 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:41:23,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:41:23,004 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:41:23,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:41:23,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:41:23,005 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:41:23,005 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:41:23,006 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:41:23,007 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:41:23,007 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:41:23,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:41:23,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:41:23,029 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:41:23,029 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:41:23,029 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:41:23,030 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:41:23,031 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:41:23,031 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:41:23,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:41:23,032 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:41:23,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:41:23,032 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:41:23,032 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:41:23,032 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:41:23,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:41:23,033 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:41:23,034 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:41:23,034 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:41:23,034 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:41:23,035 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:41:23,035 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:41:23,035 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:41:23,035 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:41:23,036 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:41:23,036 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:41:23,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:41:23,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:41:23,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:41:23,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:41:23,114 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:41:23,114 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:41:23,115 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i [2018-10-10 14:41:23,456 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271caf587/b236464f75754e37b4c5b147f8597227/FLAG2d045b141 [2018-10-10 14:41:23,663 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:41:23,664 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i [2018-10-10 14:41:23,670 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271caf587/b236464f75754e37b4c5b147f8597227/FLAG2d045b141 [2018-10-10 14:41:23,687 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271caf587/b236464f75754e37b4c5b147f8597227 [2018-10-10 14:41:23,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:41:23,699 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:41:23,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:23,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:41:23,705 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:41:23,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:23,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67aa7557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23, skipping insertion in model container [2018-10-10 14:41:23,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:23,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:41:23,750 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:41:23,938 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:23,950 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:41:23,971 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:23,992 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:41:23,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23 WrapperNode [2018-10-10 14:41:23,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:23,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:23,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:41:23,994 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:41:24,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:24,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:41:24,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:41:24,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:41:24,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (1/1) ... [2018-10-10 14:41:24,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:41:24,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:41:24,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:41:24,079 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:41:24,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (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 [2018-10-10 14:41:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:41:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:41:24,948 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:41:24,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:24 BoogieIcfgContainer [2018-10-10 14:41:24,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:41:24,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:41:24,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:41:24,954 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:41:24,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:41:23" (1/3) ... [2018-10-10 14:41:24,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3f3f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:24, skipping insertion in model container [2018-10-10 14:41:24,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:23" (2/3) ... [2018-10-10 14:41:24,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3f3f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:24, skipping insertion in model container [2018-10-10 14:41:24,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:24" (3/3) ... [2018-10-10 14:41:24,958 INFO L112 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe_false-valid-deref.i [2018-10-10 14:41:24,969 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:41:24,977 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-10-10 14:41:24,995 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-10-10 14:41:25,024 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:41:25,025 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:41:25,026 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:41:25,026 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:41:25,026 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:41:25,027 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:41:25,027 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:41:25,027 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:41:25,027 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:41:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2018-10-10 14:41:25,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-10 14:41:25,059 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:25,060 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:25,063 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:25,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:25,070 INFO L82 PathProgramCache]: Analyzing trace with hash -215046547, now seen corresponding path program 1 times [2018-10-10 14:41:25,072 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:25,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:25,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:25,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:25,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:25,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:25,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:41:25,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-10 14:41:25,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-10 14:41:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:41:25,235 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2018-10-10 14:41:25,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:25,266 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2018-10-10 14:41:25,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-10 14:41:25,269 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-10-10 14:41:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:25,286 INFO L225 Difference]: With dead ends: 121 [2018-10-10 14:41:25,291 INFO L226 Difference]: Without dead ends: 116 [2018-10-10 14:41:25,293 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:41:25,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-10-10 14:41:25,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-10-10 14:41:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-10-10 14:41:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 118 transitions. [2018-10-10 14:41:25,345 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 118 transitions. Word has length 25 [2018-10-10 14:41:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:25,346 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 118 transitions. [2018-10-10 14:41:25,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-10 14:41:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 118 transitions. [2018-10-10 14:41:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-10 14:41:25,347 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:25,348 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:25,348 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:25,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:25,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1817702912, now seen corresponding path program 1 times [2018-10-10 14:41:25,349 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:25,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:25,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:25,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:25,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:25,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:25,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:41:25,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:41:25,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:41:25,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:41:25,490 INFO L87 Difference]: Start difference. First operand 116 states and 118 transitions. Second operand 3 states. [2018-10-10 14:41:25,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:25,740 INFO L93 Difference]: Finished difference Result 115 states and 117 transitions. [2018-10-10 14:41:25,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:41:25,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-10-10 14:41:25,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:25,743 INFO L225 Difference]: With dead ends: 115 [2018-10-10 14:41:25,743 INFO L226 Difference]: Without dead ends: 112 [2018-10-10 14:41:25,746 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:41:25,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-10 14:41:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-10-10 14:41:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-10 14:41:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2018-10-10 14:41:25,768 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 26 [2018-10-10 14:41:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:25,770 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2018-10-10 14:41:25,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:41:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2018-10-10 14:41:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-10 14:41:25,771 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:25,771 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:25,773 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:25,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:25,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1147542700, now seen corresponding path program 1 times [2018-10-10 14:41:25,773 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:25,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:25,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:25,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:25,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-10 14:41:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-10 14:41:25,840 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-10 14:41:25,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:41:25 BoogieIcfgContainer [2018-10-10 14:41:25,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:41:25,870 INFO L168 Benchmark]: Toolchain (without parser) took 2171.60 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -706.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:25,872 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:25,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:25,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.60 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:25,874 INFO L168 Benchmark]: Boogie Preprocessor took 37.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:25,875 INFO L168 Benchmark]: RCFGBuilder took 870.18 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -744.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:25,876 INFO L168 Benchmark]: TraceAbstraction took 918.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:25,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 292.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.60 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 870.18 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -744.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 918.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L16] int* numbers; [L17] int array_size = __VERIFIER_nondet_int(); [L18] CALL bubbleSort(numbers, array_size) [L4] int i, j, temp; [L5] i = (array_size - 1) [L5] COND TRUE i >= 0 [L6] j = 1 [L6] COND TRUE j <= i [L7] CALL numbers[j-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 13 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 222 SDtfs, 92 SDslu, 3 SDs, 0 SdLazy, 19 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 2251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...