./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c3fed411 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/array-examples/relax-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 20:04:27,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 20:04:27,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 20:04:27,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 20:04:27,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 20:04:27,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 20:04:27,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 20:04:27,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 20:04:27,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 20:04:27,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 20:04:27,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 20:04:27,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 20:04:27,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 20:04:27,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 20:04:27,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 20:04:27,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 20:04:27,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 20:04:27,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 20:04:27,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 20:04:27,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 20:04:27,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 20:04:27,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 20:04:27,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 20:04:27,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 20:04:27,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 20:04:27,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 20:04:27,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 20:04:27,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 20:04:27,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 20:04:27,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 20:04:27,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 20:04:27,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 20:04:27,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 20:04:27,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 20:04:27,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 20:04:27,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 20:04:27,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 20:04:27,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 20:04:27,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 20:04:27,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 20:04:27,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 20:04:27,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-18 20:04:27,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 20:04:27,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 20:04:27,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 20:04:27,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 20:04:27,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 20:04:27,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 20:04:27,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 20:04:27,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 20:04:27,989 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 20:04:27,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 20:04:27,990 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-18 20:04:27,990 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-18 20:04:27,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 20:04:27,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-18 20:04:27,991 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 20:04:27,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 20:04:27,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 20:04:27,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 20:04:27,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 20:04:27,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 20:04:27,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 20:04:27,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 20:04:27,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 20:04:27,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 20:04:27,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2021-12-18 20:04:28,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 20:04:28,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 20:04:28,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 20:04:28,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 20:04:28,213 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 20:04:28,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/relax-1.i [2021-12-18 20:04:28,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3245e6731/d5bb1bf535b043658a91998301c34c94/FLAGe1dba23ee [2021-12-18 20:04:28,661 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 20:04:28,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i [2021-12-18 20:04:28,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3245e6731/d5bb1bf535b043658a91998301c34c94/FLAGe1dba23ee [2021-12-18 20:04:28,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3245e6731/d5bb1bf535b043658a91998301c34c94 [2021-12-18 20:04:28,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 20:04:28,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 20:04:28,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 20:04:28,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 20:04:28,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 20:04:28,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:04:28" (1/1) ... [2021-12-18 20:04:28,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8a3d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:28, skipping insertion in model container [2021-12-18 20:04:28,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:04:28" (1/1) ... [2021-12-18 20:04:28,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 20:04:28,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 20:04:28,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-12-18 20:04:28,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 20:04:28,997 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 20:04:29,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-12-18 20:04:29,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 20:04:29,038 INFO L208 MainTranslator]: Completed translation [2021-12-18 20:04:29,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29 WrapperNode [2021-12-18 20:04:29,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 20:04:29,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 20:04:29,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 20:04:29,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 20:04:29,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,075 INFO L137 Inliner]: procedures = 120, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2021-12-18 20:04:29,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 20:04:29,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 20:04:29,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 20:04:29,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 20:04:29,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 20:04:29,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 20:04:29,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 20:04:29,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 20:04:29,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (1/1) ... [2021-12-18 20:04:29,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 20:04:29,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 20:04:29,140 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) [2021-12-18 20:04:29,141 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 [2021-12-18 20:04:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 20:04:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-18 20:04:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-18 20:04:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 20:04:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 20:04:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 20:04:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 20:04:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 20:04:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 20:04:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 20:04:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 20:04:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 20:04:29,273 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 20:04:29,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 20:04:29,539 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 20:04:29,547 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 20:04:29,549 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-18 20:04:29,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:04:29 BoogieIcfgContainer [2021-12-18 20:04:29,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 20:04:29,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 20:04:29,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 20:04:29,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 20:04:29,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:04:28" (1/3) ... [2021-12-18 20:04:29,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fa57a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:04:29, skipping insertion in model container [2021-12-18 20:04:29,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:04:29" (2/3) ... [2021-12-18 20:04:29,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fa57a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:04:29, skipping insertion in model container [2021-12-18 20:04:29,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:04:29" (3/3) ... [2021-12-18 20:04:29,558 INFO L111 eAbstractionObserver]: Analyzing ICFG relax-1.i [2021-12-18 20:04:29,561 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 20:04:29,562 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-12-18 20:04:29,595 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 20:04:29,600 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 [2021-12-18 20:04:29,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-12-18 20:04:29,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 88 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-18 20:04:29,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-18 20:04:29,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 20:04:29,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-18 20:04:29,618 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 28 more)] === [2021-12-18 20:04:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 20:04:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-12-18 20:04:29,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 20:04:29,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062569548] [2021-12-18 20:04:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 20:04:29,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 20:04:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 20:04:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 20:04:29,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 20:04:29,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062569548] [2021-12-18 20:04:29,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062569548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 20:04:29,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 20:04:29,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 20:04:29,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077312931] [2021-12-18 20:04:29,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 20:04:29,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 20:04:29,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 20:04:29,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 20:04:29,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 20:04:29,805 INFO L87 Difference]: Start difference. First operand has 95 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 88 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-18 20:04:29,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 20:04:29,883 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2021-12-18 20:04:29,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 20:04:29,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-12-18 20:04:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 20:04:29,893 INFO L225 Difference]: With dead ends: 94 [2021-12-18 20:04:29,893 INFO L226 Difference]: Without dead ends: 92 [2021-12-18 20:04:29,894 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 [2021-12-18 20:04:29,897 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 79 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 20:04:29,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 98 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 20:04:29,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-18 20:04:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-18 20:04:29,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.8333333333333333) internal successors, (99), 85 states have internal predecessors, (99), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-18 20:04:29,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2021-12-18 20:04:29,929 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 5 [2021-12-18 20:04:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 20:04:29,930 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2021-12-18 20:04:29,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-18 20:04:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2021-12-18 20:04:29,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-18 20:04:29,930 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 20:04:29,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-18 20:04:29,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 20:04:29,930 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 28 more)] === [2021-12-18 20:04:29,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 20:04:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash 28695943, now seen corresponding path program 1 times [2021-12-18 20:04:29,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 20:04:29,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687621351] [2021-12-18 20:04:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 20:04:29,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 20:04:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 20:04:29,964 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 20:04:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 20:04:29,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-18 20:04:29,998 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 20:04:29,999 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (31 of 32 remaining) [2021-12-18 20:04:30,000 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (30 of 32 remaining) [2021-12-18 20:04:30,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (29 of 32 remaining) [2021-12-18 20:04:30,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (28 of 32 remaining) [2021-12-18 20:04:30,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (27 of 32 remaining) [2021-12-18 20:04:30,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (26 of 32 remaining) [2021-12-18 20:04:30,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (25 of 32 remaining) [2021-12-18 20:04:30,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (24 of 32 remaining) [2021-12-18 20:04:30,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (23 of 32 remaining) [2021-12-18 20:04:30,003 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (22 of 32 remaining) [2021-12-18 20:04:30,004 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (21 of 32 remaining) [2021-12-18 20:04:30,004 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (20 of 32 remaining) [2021-12-18 20:04:30,004 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (19 of 32 remaining) [2021-12-18 20:04:30,004 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (18 of 32 remaining) [2021-12-18 20:04:30,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (17 of 32 remaining) [2021-12-18 20:04:30,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (16 of 32 remaining) [2021-12-18 20:04:30,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (15 of 32 remaining) [2021-12-18 20:04:30,006 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (14 of 32 remaining) [2021-12-18 20:04:30,006 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (13 of 32 remaining) [2021-12-18 20:04:30,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (12 of 32 remaining) [2021-12-18 20:04:30,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (11 of 32 remaining) [2021-12-18 20:04:30,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (10 of 32 remaining) [2021-12-18 20:04:30,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (9 of 32 remaining) [2021-12-18 20:04:30,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (8 of 32 remaining) [2021-12-18 20:04:30,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2021-12-18 20:04:30,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2021-12-18 20:04:30,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2021-12-18 20:04:30,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2021-12-18 20:04:30,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2021-12-18 20:04:30,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2021-12-18 20:04:30,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2021-12-18 20:04:30,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2021-12-18 20:04:30,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 20:04:30,032 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-18 20:04:30,035 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 20:04:30,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 08:04:30 BoogieIcfgContainer [2021-12-18 20:04:30,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 20:04:30,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 20:04:30,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 20:04:30,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 20:04:30,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:04:29" (3/4) ... [2021-12-18 20:04:30,053 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-18 20:04:30,092 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-18 20:04:30,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 20:04:30,094 INFO L158 Benchmark]: Toolchain (without parser) took 1399.37ms. Allocated memory is still 123.7MB. Free memory was 91.2MB in the beginning and 96.6MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 20:04:30,095 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 40.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 20:04:30,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.48ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 92.4MB in the end (delta: -1.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-18 20:04:30,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.96ms. Allocated memory is still 123.7MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-18 20:04:30,096 INFO L158 Benchmark]: Boogie Preprocessor took 21.51ms. Allocated memory is still 123.7MB. Free memory was 89.6MB in the beginning and 88.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-18 20:04:30,096 INFO L158 Benchmark]: RCFGBuilder took 439.67ms. Allocated memory is still 123.7MB. Free memory was 88.2MB in the beginning and 70.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-18 20:04:30,097 INFO L158 Benchmark]: TraceAbstraction took 498.06ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 98.7MB in the end (delta: -28.6MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2021-12-18 20:04:30,097 INFO L158 Benchmark]: Witness Printer took 42.19ms. Allocated memory is still 123.7MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-18 20:04:30,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 40.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.48ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 92.4MB in the end (delta: -1.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.96ms. Allocated memory is still 123.7MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.51ms. Allocated memory is still 123.7MB. Free memory was 89.6MB in the beginning and 88.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.67ms. Allocated memory is still 123.7MB. Free memory was 88.2MB in the beginning and 70.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 498.06ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 98.7MB in the end (delta: -28.6MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 42.19ms. Allocated memory is still 123.7MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 584]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={-3:0}, a={-3:0}, a_length=4294967294, i=0, pat={-1:0}, pat={-1:0}, pat_length=1, shift=0] [L582] COND TRUE i