./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/modsf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/modsf.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 02:13:03,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 02:13:03,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 02:13:03,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 02:13:03,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 02:13:03,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 02:13:03,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 02:13:03,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 02:13:03,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 02:13:03,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 02:13:03,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 02:13:03,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 02:13:03,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 02:13:03,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 02:13:03,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 02:13:03,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 02:13:03,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 02:13:03,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 02:13:03,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 02:13:03,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 02:13:03,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 02:13:03,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 02:13:03,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 02:13:03,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 02:13:03,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 02:13:03,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 02:13:03,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 02:13:03,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 02:13:03,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 02:13:03,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 02:13:03,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 02:13:03,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 02:13:03,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 02:13:03,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 02:13:03,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 02:13:03,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 02:13:03,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 02:13:03,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 02:13:03,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 02:13:03,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 02:13:03,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 02:13:03,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 02:13:03,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 02:13:03,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 02:13:03,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 02:13:03,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 02:13:03,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 02:13:03,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 02:13:03,979 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 02:13:03,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 02:13:03,979 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 02:13:03,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 02:13:03,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 02:13:03,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 02:13:03,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 02:13:03,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 02:13:03,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 02:13:03,981 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 02:13:03,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 02:13:03,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 02:13:03,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 02:13:03,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 02:13:03,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 02:13:03,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 02:13:03,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:13:03,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 02:13:03,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 02:13:03,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 02:13:03,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 02:13:03,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 02:13:03,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 02:13:03,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 02:13:03,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 [2021-08-29 02:13:04,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 02:13:04,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 02:13:04,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 02:13:04,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 02:13:04,272 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 02:13:04,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/modsf.c [2021-08-29 02:13:04,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550a54bfe/844c7988bce9476587597ba1a44705ea/FLAGd84bd6c0c [2021-08-29 02:13:04,744 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 02:13:04,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modsf.c [2021-08-29 02:13:04,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550a54bfe/844c7988bce9476587597ba1a44705ea/FLAGd84bd6c0c [2021-08-29 02:13:04,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550a54bfe/844c7988bce9476587597ba1a44705ea [2021-08-29 02:13:04,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 02:13:04,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 02:13:04,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 02:13:04,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 02:13:04,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 02:13:04,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@189a9d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04, skipping insertion in model container [2021-08-29 02:13:04,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 02:13:04,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 02:13:04,871 WARN L228 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-fpi/modsf.c[588,601] [2021-08-29 02:13:04,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:13:04,887 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 02:13:04,895 WARN L228 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-fpi/modsf.c[588,601] [2021-08-29 02:13:04,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:13:04,910 INFO L208 MainTranslator]: Completed translation [2021-08-29 02:13:04,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04 WrapperNode [2021-08-29 02:13:04,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 02:13:04,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 02:13:04,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 02:13:04,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 02:13:04,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 02:13:04,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 02:13:04,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 02:13:04,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 02:13:04,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:04,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 02:13:05,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 02:13:05,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 02:13:05,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 02:13:05,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (1/1) ... [2021-08-29 02:13:05,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:13:05,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:13:05,047 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) [2021-08-29 02:13:05,062 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 [2021-08-29 02:13:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 02:13:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 02:13:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 02:13:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 02:13:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 02:13:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 02:13:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 02:13:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 02:13:05,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 02:13:05,287 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-08-29 02:13:05,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:13:05 BoogieIcfgContainer [2021-08-29 02:13:05,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 02:13:05,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 02:13:05,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 02:13:05,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 02:13:05,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:13:04" (1/3) ... [2021-08-29 02:13:05,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b2f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:13:05, skipping insertion in model container [2021-08-29 02:13:05,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:04" (2/3) ... [2021-08-29 02:13:05,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b2f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:13:05, skipping insertion in model container [2021-08-29 02:13:05,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:13:05" (3/3) ... [2021-08-29 02:13:05,319 INFO L111 eAbstractionObserver]: Analyzing ICFG modsf.c [2021-08-29 02:13:05,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 02:13:05,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 02:13:05,366 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 02:13:05,373 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-08-29 02:13:05,373 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 02:13:05,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 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) [2021-08-29 02:13:05,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 02:13:05,398 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:13:05,399 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:13:05,400 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:13:05,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:13:05,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2021-08-29 02:13:05,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:13:05,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89992245] [2021-08-29 02:13:05,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:13:05,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:13:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:13:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:13:05,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:13:05,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89992245] [2021-08-29 02:13:05,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89992245] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 02:13:05,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 02:13:05,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 02:13:05,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880601021] [2021-08-29 02:13:05,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 02:13:05,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 02:13:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 02:13:05,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 02:13:05,630 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 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 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-08-29 02:13:05,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 02:13:05,708 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-08-29 02:13:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 02:13:05,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-08-29 02:13:05,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 02:13:05,716 INFO L225 Difference]: With dead ends: 50 [2021-08-29 02:13:05,716 INFO L226 Difference]: Without dead ends: 23 [2021-08-29 02:13:05,719 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 02:13:05,723 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.53ms IncrementalHoareTripleChecker+Time [2021-08-29 02:13:05,724 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 61.53ms Time] [2021-08-29 02:13:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-08-29 02:13:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-08-29 02:13:05,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 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) [2021-08-29 02:13:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-08-29 02:13:05,749 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-08-29 02:13:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 02:13:05,750 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-08-29 02:13:05,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-08-29 02:13:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-08-29 02:13:05,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 02:13:05,752 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:13:05,752 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:13:05,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 02:13:05,754 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:13:05,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:13:05,755 INFO L82 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2021-08-29 02:13:05,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:13:05,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966500557] [2021-08-29 02:13:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:13:05,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:13:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:13:05,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:13:05,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:13:05,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966500557] [2021-08-29 02:13:05,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966500557] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 02:13:05,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 02:13:05,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 02:13:05,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217311125] [2021-08-29 02:13:05,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 02:13:05,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 02:13:05,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 02:13:05,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:13:05,819 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-08-29 02:13:05,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 02:13:05,907 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-08-29 02:13:05,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 02:13:05,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2021-08-29 02:13:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 02:13:05,908 INFO L225 Difference]: With dead ends: 53 [2021-08-29 02:13:05,908 INFO L226 Difference]: Without dead ends: 37 [2021-08-29 02:13:05,908 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.20ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:13:05,909 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.98ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.03ms IncrementalHoareTripleChecker+Time [2021-08-29 02:13:05,910 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 61 Unknown, 0 Unchecked, 1.98ms Time], IncrementalHoareTripleChecker [12 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 73.03ms Time] [2021-08-29 02:13:05,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-29 02:13:05,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2021-08-29 02:13:05,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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) [2021-08-29 02:13:05,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-08-29 02:13:05,915 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2021-08-29 02:13:05,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 02:13:05,915 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-08-29 02:13:05,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-08-29 02:13:05,916 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-08-29 02:13:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 02:13:05,916 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:13:05,916 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:13:05,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 02:13:05,917 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:13:05,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:13:05,917 INFO L82 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2021-08-29 02:13:05,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:13:05,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822736695] [2021-08-29 02:13:05,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:13:05,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:13:05,943 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 02:13:05,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084644413] [2021-08-29 02:13:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:13:05,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 02:13:05,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:13:05,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 02:13:05,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 02:13:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 02:13:06,002 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 02:13:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 02:13:06,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 02:13:06,040 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 02:13:06,041 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 02:13:06,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 02:13:06,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 02:13:06,263 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 02:13:06,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:13:06 BoogieIcfgContainer [2021-08-29 02:13:06,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 02:13:06,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 02:13:06,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 02:13:06,293 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 02:13:06,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:13:05" (3/4) ... [2021-08-29 02:13:06,295 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 02:13:06,324 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 02:13:06,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 02:13:06,325 INFO L158 Benchmark]: Toolchain (without parser) took 1561.81ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 41.9MB in the beginning and 49.9MB in the end (delta: -8.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-08-29 02:13:06,326 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 02:13:06,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.43ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 31.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 02:13:06,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.70ms. Allocated memory is still 60.8MB. Free memory was 31.6MB in the beginning and 44.1MB in the end (delta: -12.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 02:13:06,327 INFO L158 Benchmark]: Boogie Preprocessor took 33.37ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 02:13:06,327 INFO L158 Benchmark]: RCFGBuilder took 312.70ms. Allocated memory is still 60.8MB. Free memory was 42.8MB in the beginning and 32.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 02:13:06,328 INFO L158 Benchmark]: TraceAbstraction took 978.69ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 32.5MB in the beginning and 52.9MB in the end (delta: -20.4MB). Peak memory consumption was 671.3kB. Max. memory is 16.1GB. [2021-08-29 02:13:06,328 INFO L158 Benchmark]: Witness Printer took 31.94ms. Allocated memory is still 79.7MB. Free memory was 52.9MB in the beginning and 49.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 02:13:06,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.43ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 31.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.70ms. Allocated memory is still 60.8MB. Free memory was 31.6MB in the beginning and 44.1MB in the end (delta: -12.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.37ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.70ms. Allocated memory is still 60.8MB. Free memory was 42.8MB in the beginning and 32.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 978.69ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 32.5MB in the beginning and 52.9MB in the end (delta: -20.4MB). Peak memory consumption was 671.3kB. Max. memory is 16.1GB. * Witness Printer took 31.94ms. Allocated memory is still 79.7MB. Free memory was 52.9MB in the beginning and 49.9MB in the end (delta: 3.0MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i