./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 ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 05:47:30,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:47:30,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:47:30,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:47:30,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:47:30,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:47:30,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:47:30,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:47:30,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:47:30,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:47:30,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:47:30,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:47:30,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:47:30,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:47:30,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:47:30,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:47:30,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:47:30,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:47:30,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:47:30,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:47:30,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:47:30,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:47:30,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:47:30,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:47:30,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:47:30,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:47:30,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:47:30,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:47:30,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:47:30,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:47:30,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:47:30,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:47:30,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:47:30,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:47:30,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:47:30,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:47:30,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:47:30,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:47:30,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:47:30,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:47:30,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:47:30,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-12-28 05:47:30,999 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:47:30,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:47:31,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:47:31,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:47:31,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:47:31,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:47:31,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:47:31,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:47:31,002 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:47:31,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:47:31,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 05:47:31,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:47:31,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:47:31,004 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-28 05:47:31,004 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-28 05:47:31,004 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-28 05:47:31,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:47:31,004 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-28 05:47:31,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:47:31,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:47:31,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:47:31,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:47:31,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:47:31,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:47:31,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:47:31,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:47:31,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:47:31,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2021-12-28 05:47:31,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:47:31,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:47:31,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:47:31,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:47:31,289 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:47:31,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-12-28 05:47:31,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4000c1f1/1aa2a8e6418a47548580822bc80a243c/FLAG55b9ee552 [2021-12-28 05:47:31,718 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:47:31,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-12-28 05:47:31,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4000c1f1/1aa2a8e6418a47548580822bc80a243c/FLAG55b9ee552 [2021-12-28 05:47:31,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4000c1f1/1aa2a8e6418a47548580822bc80a243c [2021-12-28 05:47:31,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:47:31,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:47:31,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:47:31,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:47:31,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:47:31,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8ce915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31, skipping insertion in model container [2021-12-28 05:47:31,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:47:31,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:47:31,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:47:31,846 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:47:31,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:47:31,873 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:47:31,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31 WrapperNode [2021-12-28 05:47:31,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:47:31,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:47:31,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:47:31,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:47:31,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,933 INFO L137 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2021-12-28 05:47:31,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:47:31,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:47:31,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:47:31,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:47:31,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:47:31,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:47:31,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:47:31,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:47:31,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (1/1) ... [2021-12-28 05:47:31,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:47:31,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:47:31,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 05:47:32,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 05:47:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:47:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:47:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:47:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:47:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:47:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:47:32,074 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:47:32,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:47:32,211 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:47:32,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:47:32,222 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 05:47:32,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:47:32 BoogieIcfgContainer [2021-12-28 05:47:32,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:47:32,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:47:32,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:47:32,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:47:32,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:47:31" (1/3) ... [2021-12-28 05:47:32,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c85fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:47:32, skipping insertion in model container [2021-12-28 05:47:32,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:47:31" (2/3) ... [2021-12-28 05:47:32,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c85fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:47:32, skipping insertion in model container [2021-12-28 05:47:32,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:47:32" (3/3) ... [2021-12-28 05:47:32,245 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2021-12-28 05:47:32,249 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:47:32,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-12-28 05:47:32,286 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:47:32,304 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 05:47:32,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-12-28 05:47:32,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-28 05:47:32,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:47:32,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-28 05:47:32,330 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-12-28 05:47:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:47:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-12-28 05:47:32,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:47:32,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334002649] [2021-12-28 05:47:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:47:32,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:47:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:47:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 05:47:32,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:47:32,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334002649] [2021-12-28 05:47:32,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334002649] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:47:32,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:47:32,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 05:47:32,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3163191] [2021-12-28 05:47:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:47:32,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 05:47:32,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:47:32,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 05:47:32,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 05:47:32,495 INFO L87 Difference]: Start difference. First operand has 26 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:47:32,550 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-12-28 05:47:32,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 05:47:32,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-12-28 05:47:32,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:47:32,557 INFO L225 Difference]: With dead ends: 21 [2021-12-28 05:47:32,557 INFO L226 Difference]: Without dead ends: 19 [2021-12-28 05:47:32,559 INFO L932 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 [2021-12-28 05:47:32,562 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:47:32,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:47:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-28 05:47:32,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-28 05:47:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-12-28 05:47:32,585 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 3 [2021-12-28 05:47:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:47:32,586 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-12-28 05:47:32,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-12-28 05:47:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-28 05:47:32,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:47:32,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-28 05:47:32,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:47:32,587 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-12-28 05:47:32,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:47:32,590 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-28 05:47:32,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:47:32,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358728173] [2021-12-28 05:47:32,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:47:32,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:47:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:47:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 05:47:32,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:47:32,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358728173] [2021-12-28 05:47:32,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358728173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:47:32,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:47:32,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 05:47:32,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695958016] [2021-12-28 05:47:32,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:47:32,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 05:47:32,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:47:32,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 05:47:32,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 05:47:32,668 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:47:32,679 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-12-28 05:47:32,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 05:47:32,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-12-28 05:47:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:47:32,680 INFO L225 Difference]: With dead ends: 14 [2021-12-28 05:47:32,680 INFO L226 Difference]: Without dead ends: 14 [2021-12-28 05:47:32,680 INFO L932 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 [2021-12-28 05:47:32,681 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:47:32,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:47:32,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-28 05:47:32,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-28 05:47:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-12-28 05:47:32,686 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 3 [2021-12-28 05:47:32,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:47:32,687 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-12-28 05:47:32,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-12-28 05:47:32,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 05:47:32,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:47:32,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:47:32,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 05:47:32,689 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-12-28 05:47:32,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:47:32,689 INFO L85 PathProgramCache]: Analyzing trace with hash 59325613, now seen corresponding path program 1 times [2021-12-28 05:47:32,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:47:32,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313727288] [2021-12-28 05:47:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:47:32,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:47:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:47:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 05:47:32,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:47:32,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313727288] [2021-12-28 05:47:32,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313727288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:47:32,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:47:32,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 05:47:32,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062610828] [2021-12-28 05:47:32,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:47:32,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 05:47:32,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:47:32,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 05:47:32,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:47:32,749 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:47:32,767 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-12-28 05:47:32,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 05:47:32,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-28 05:47:32,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:47:32,767 INFO L225 Difference]: With dead ends: 13 [2021-12-28 05:47:32,767 INFO L226 Difference]: Without dead ends: 0 [2021-12-28 05:47:32,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:47:32,768 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:47:32,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 12 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:47:32,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-28 05:47:32,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-28 05:47:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-28 05:47:32,770 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-12-28 05:47:32,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:47:32,770 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 05:47:32,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 05:47:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-28 05:47:32,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-28 05:47:32,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION (10 of 11 remaining) [2021-12-28 05:47:32,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (9 of 11 remaining) [2021-12-28 05:47:32,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION (8 of 11 remaining) [2021-12-28 05:47:32,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION (7 of 11 remaining) [2021-12-28 05:47:32,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION (6 of 11 remaining) [2021-12-28 05:47:32,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION (5 of 11 remaining) [2021-12-28 05:47:32,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION (4 of 11 remaining) [2021-12-28 05:47:32,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION (3 of 11 remaining) [2021-12-28 05:47:32,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATION (2 of 11 remaining) [2021-12-28 05:47:32,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATION (1 of 11 remaining) [2021-12-28 05:47:32,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (0 of 11 remaining) [2021-12-28 05:47:32,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 05:47:32,775 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-28 05:47:32,776 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 05:47:32,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:47:32 BoogieIcfgContainer [2021-12-28 05:47:32,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 05:47:32,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 05:47:32,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 05:47:32,779 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 05:47:32,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:47:32" (3/4) ... [2021-12-28 05:47:32,781 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 05:47:32,787 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-28 05:47:32,788 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-28 05:47:32,788 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-28 05:47:32,788 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 05:47:32,806 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 05:47:32,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 05:47:32,807 INFO L158 Benchmark]: Toolchain (without parser) took 1069.30ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 40.0MB in the beginning and 48.1MB in the end (delta: -8.0MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-12-28 05:47:32,807 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 05:47:32,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 134.78ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 30.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 05:47:32,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.94ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 45.0MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 05:47:32,808 INFO L158 Benchmark]: Boogie Preprocessor took 29.91ms. Allocated memory is still 60.8MB. Free memory was 44.9MB in the beginning and 43.9MB in the end (delta: 926.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 05:47:32,808 INFO L158 Benchmark]: RCFGBuilder took 258.08ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 34.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 05:47:32,808 INFO L158 Benchmark]: TraceAbstraction took 553.12ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.9MB in the beginning and 50.3MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 05:47:32,808 INFO L158 Benchmark]: Witness Printer took 27.14ms. Allocated memory is still 73.4MB. Free memory was 50.3MB in the beginning and 48.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 05:47:32,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 134.78ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 30.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.94ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 45.0MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.91ms. Allocated memory is still 60.8MB. Free memory was 44.9MB in the beginning and 43.9MB in the end (delta: 926.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 258.08ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 34.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 553.12ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.9MB in the beginning and 50.3MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.14ms. Allocated memory is still 73.4MB. Free memory was 50.3MB in the beginning and 48.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 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: 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: 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: 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: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 25 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 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 - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-28 05:47:32,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE