./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ss4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/ss4f.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 ec849c99676c748abc5b9766c44a36d723f69a872b4d768d06c539c74569bdf4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 10:47:25,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 10:47:25,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 10:47:25,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 10:47:25,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 10:47:25,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 10:47:25,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 10:47:25,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 10:47:25,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 10:47:25,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 10:47:25,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 10:47:25,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 10:47:25,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 10:47:25,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 10:47:25,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 10:47:25,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 10:47:25,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 10:47:25,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 10:47:25,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 10:47:25,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 10:47:25,223 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 10:47:25,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 10:47:25,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 10:47:25,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 10:47:25,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 10:47:25,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 10:47:25,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 10:47:25,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 10:47:25,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 10:47:25,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 10:47:25,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 10:47:25,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 10:47:25,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 10:47:25,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 10:47:25,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 10:47:25,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 10:47:25,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 10:47:25,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 10:47:25,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 10:47:25,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 10:47:25,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 10:47:25,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 10:47:25,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 10:47:25,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 10:47:25,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 10:47:25,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 10:47:25,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 10:47:25,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 10:47:25,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 10:47:25,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 10:47:25,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 10:47:25,264 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 10:47:25,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 10:47:25,265 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 10:47:25,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 10:47:25,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 10:47:25,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 10:47:25,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 10:47:25,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 10:47:25,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 10:47:25,266 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 10:47:25,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 10:47:25,266 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 10:47:25,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 10:47:25,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 10:47:25,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 10:47:25,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 10:47:25,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:47:25,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 10:47:25,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 10:47:25,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 10:47:25,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 10:47:25,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 10:47:25,269 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 10:47:25,269 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 10:47:25,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 10:47:25,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec849c99676c748abc5b9766c44a36d723f69a872b4d768d06c539c74569bdf4 [2022-07-19 10:47:25,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 10:47:25,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 10:47:25,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 10:47:25,488 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 10:47:25,489 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 10:47:25,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss4f.c [2022-07-19 10:47:25,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1290f2efc/d14d2077fd0e4cc481af195d91faf3a6/FLAGb78037f61 [2022-07-19 10:47:25,904 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 10:47:25,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss4f.c [2022-07-19 10:47:25,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1290f2efc/d14d2077fd0e4cc481af195d91faf3a6/FLAGb78037f61 [2022-07-19 10:47:25,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1290f2efc/d14d2077fd0e4cc481af195d91faf3a6 [2022-07-19 10:47:25,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 10:47:25,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 10:47:25,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 10:47:25,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 10:47:25,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 10:47:25,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:47:25" (1/1) ... [2022-07-19 10:47:25,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7673b06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:25, skipping insertion in model container [2022-07-19 10:47:25,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:47:25" (1/1) ... [2022-07-19 10:47:25,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 10:47:25,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 10:47:26,089 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-fpi/ss4f.c[587,600] [2022-07-19 10:47:26,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:47:26,117 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 10:47:26,127 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-fpi/ss4f.c[587,600] [2022-07-19 10:47:26,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:47:26,151 INFO L208 MainTranslator]: Completed translation [2022-07-19 10:47:26,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26 WrapperNode [2022-07-19 10:47:26,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 10:47:26,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 10:47:26,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 10:47:26,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 10:47:26,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,185 INFO L137 Inliner]: procedures = 17, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2022-07-19 10:47:26,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 10:47:26,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 10:47:26,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 10:47:26,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 10:47:26,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 10:47:26,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 10:47:26,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 10:47:26,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 10:47:26,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (1/1) ... [2022-07-19 10:47:26,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:47:26,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:47:26,239 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) [2022-07-19 10:47:26,247 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 [2022-07-19 10:47:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 10:47:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 10:47:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 10:47:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 10:47:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 10:47:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 10:47:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 10:47:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 10:47:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 10:47:26,339 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 10:47:26,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 10:47:26,526 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 10:47:26,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 10:47:26,530 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-19 10:47:26,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:47:26 BoogieIcfgContainer [2022-07-19 10:47:26,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 10:47:26,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 10:47:26,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 10:47:26,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 10:47:26,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:47:25" (1/3) ... [2022-07-19 10:47:26,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f63055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:47:26, skipping insertion in model container [2022-07-19 10:47:26,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:47:26" (2/3) ... [2022-07-19 10:47:26,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f63055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:47:26, skipping insertion in model container [2022-07-19 10:47:26,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:47:26" (3/3) ... [2022-07-19 10:47:26,552 INFO L111 eAbstractionObserver]: Analyzing ICFG ss4f.c [2022-07-19 10:47:26,562 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 10:47:26,562 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 10:47:26,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 10:47:26,617 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e2ecd5a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@bd23320 [2022-07-19 10:47:26,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 10:47:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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) [2022-07-19 10:47:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 10:47:26,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:47:26,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:47:26,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:47:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:47:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1202110748, now seen corresponding path program 1 times [2022-07-19 10:47:26,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:47:26,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018682602] [2022-07-19 10:47:26,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:47:26,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:47:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:47:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:47:26,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:47:26,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018682602] [2022-07-19 10:47:26,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018682602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:47:26,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:47:26,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 10:47:26,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638300934] [2022-07-19 10:47:26,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:47:26,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 10:47:26,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:47:26,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 10:47:26,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 10:47:26,812 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-07-19 10:47:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:47:26,824 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2022-07-19 10:47:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 10:47:26,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2022-07-19 10:47:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:47:26,833 INFO L225 Difference]: With dead ends: 44 [2022-07-19 10:47:26,833 INFO L226 Difference]: Without dead ends: 20 [2022-07-19 10:47:26,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 10:47:26,839 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:47:26,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:47:26,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-19 10:47:26,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-19 10:47:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2022-07-19 10:47:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-07-19 10:47:26,866 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 15 [2022-07-19 10:47:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:47:26,866 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-07-19 10:47:26,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-07-19 10:47:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-07-19 10:47:26,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 10:47:26,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:47:26,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:47:26,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 10:47:26,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:47:26,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:47:26,869 INFO L85 PathProgramCache]: Analyzing trace with hash -944124056, now seen corresponding path program 1 times [2022-07-19 10:47:26,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:47:26,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188169882] [2022-07-19 10:47:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:47:26,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:47:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:47:26,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:47:26,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:47:26,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188169882] [2022-07-19 10:47:26,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188169882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:47:26,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:47:26,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:47:26,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957262995] [2022-07-19 10:47:26,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:47:26,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:47:26,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:47:26,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:47:26,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:47:26,970 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-07-19 10:47:27,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:47:27,027 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-07-19 10:47:27,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 10:47:27,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-07-19 10:47:27,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:47:27,029 INFO L225 Difference]: With dead ends: 41 [2022-07-19 10:47:27,030 INFO L226 Difference]: Without dead ends: 28 [2022-07-19 10:47:27,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:47:27,033 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:47:27,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 11 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:47:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-19 10:47:27,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-07-19 10:47:27,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 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) [2022-07-19 10:47:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-07-19 10:47:27,045 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2022-07-19 10:47:27,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:47:27,046 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-07-19 10:47:27,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-07-19 10:47:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-07-19 10:47:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-19 10:47:27,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:47:27,047 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:47:27,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 10:47:27,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:47:27,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:47:27,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1401448688, now seen corresponding path program 1 times [2022-07-19 10:47:27,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:47:27,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540408921] [2022-07-19 10:47:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:47:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:47:27,101 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 10:47:27,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610089660] [2022-07-19 10:47:27,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:47:27,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 10:47:27,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:47:27,103 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) [2022-07-19 10:47:27,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 10:47:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:47:27,160 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 10:47:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:47:27,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 10:47:27,194 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 10:47:27,195 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 10:47:27,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 10:47:27,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 10:47:27,416 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 10:47:27,419 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 10:47:27,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:47:27 BoogieIcfgContainer [2022-07-19 10:47:27,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 10:47:27,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 10:47:27,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 10:47:27,451 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 10:47:27,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:47:26" (3/4) ... [2022-07-19 10:47:27,453 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 10:47:27,478 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 10:47:27,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 10:47:27,479 INFO L158 Benchmark]: Toolchain (without parser) took 1555.58ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 91.0MB in the end (delta: 2.1MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2022-07-19 10:47:27,480 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:47:27,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.93ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 101.3MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 10:47:27,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.43ms. Allocated memory is still 125.8MB. Free memory was 101.3MB in the beginning and 99.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:47:27,480 INFO L158 Benchmark]: Boogie Preprocessor took 30.21ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 98.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:47:27,481 INFO L158 Benchmark]: RCFGBuilder took 314.40ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 87.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 10:47:27,481 INFO L158 Benchmark]: TraceAbstraction took 917.79ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 93.5MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:47:27,481 INFO L158 Benchmark]: Witness Printer took 27.93ms. Allocated memory is still 125.8MB. Free memory was 93.5MB in the beginning and 91.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:47:27,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.93ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 101.3MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.43ms. Allocated memory is still 125.8MB. Free memory was 101.3MB in the beginning and 99.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.21ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 98.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.40ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 87.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 917.79ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 93.5MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.93ms. Allocated memory is still 125.8MB. Free memory was 93.5MB in the beginning and 91.0MB in the end (delta: 2.5MB). 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: 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) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [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 [a={-1:0}, i=0, N=1, sum={4:0}] [L32] COND TRUE i