./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/res2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/res2f.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 d4908701bc858db819ac584f6da9ed504c4033b1 ................................................................................................................................................................................................................................................................................................................................................................................................. 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-dev-20ed64e [2021-08-25 19:29:08,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 19:29:08,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 19:29:08,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 19:29:08,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 19:29:08,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 19:29:08,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 19:29:08,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 19:29:08,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 19:29:08,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 19:29:08,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 19:29:08,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 19:29:08,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 19:29:08,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 19:29:08,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 19:29:08,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 19:29:08,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 19:29:08,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 19:29:08,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 19:29:08,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 19:29:08,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 19:29:08,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 19:29:08,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 19:29:08,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 19:29:08,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 19:29:08,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 19:29:08,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 19:29:08,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 19:29:08,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 19:29:08,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 19:29:08,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 19:29:08,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 19:29:08,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 19:29:08,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 19:29:08,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 19:29:08,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 19:29:08,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 19:29:08,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 19:29:08,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 19:29:08,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 19:29:08,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 19:29:08,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 19:29:08,239 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 19:29:08,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 19:29:08,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 19:29:08,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 19:29:08,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 19:29:08,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 19:29:08,245 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 19:29:08,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 19:29:08,245 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 19:29:08,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 19:29:08,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 19:29:08,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 19:29:08,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 19:29:08,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 19:29:08,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 19:29:08,247 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 19:29:08,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 19:29:08,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 19:29:08,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 19:29:08,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 19:29:08,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 19:29:08,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 19:29:08,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:29:08,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 19:29:08,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 19:29:08,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 19:29:08,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 19:29:08,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 19:29:08,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 19:29:08,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 19:29:08,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4908701bc858db819ac584f6da9ed504c4033b1 [2021-08-25 19:29:08,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 19:29:08,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 19:29:08,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 19:29:08,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 19:29:08,565 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 19:29:08,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/res2f.c [2021-08-25 19:29:08,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10aa0b900/a0c2e32ffc6a41828d06ea76800e7ed0/FLAG359d73581 [2021-08-25 19:29:09,142 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 19:29:09,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2f.c [2021-08-25 19:29:09,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10aa0b900/a0c2e32ffc6a41828d06ea76800e7ed0/FLAG359d73581 [2021-08-25 19:29:09,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10aa0b900/a0c2e32ffc6a41828d06ea76800e7ed0 [2021-08-25 19:29:09,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 19:29:09,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 19:29:09,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 19:29:09,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 19:29:09,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 19:29:09,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698feef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09, skipping insertion in model container [2021-08-25 19:29:09,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 19:29:09,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 19:29:09,743 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/res2f.c[588,601] [2021-08-25 19:29:09,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:29:09,766 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 19:29:09,775 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/res2f.c[588,601] [2021-08-25 19:29:09,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:29:09,808 INFO L208 MainTranslator]: Completed translation [2021-08-25 19:29:09,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09 WrapperNode [2021-08-25 19:29:09,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 19:29:09,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 19:29:09,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 19:29:09,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 19:29:09,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 19:29:09,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 19:29:09,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 19:29:09,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 19:29:09,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 19:29:09,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 19:29:09,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 19:29:09,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 19:29:09,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (1/1) ... [2021-08-25 19:29:09,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:29:09,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:29:09,906 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) [2021-08-25 19:29:09,929 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 [2021-08-25 19:29:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 19:29:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 19:29:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-25 19:29:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-25 19:29:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 19:29:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 19:29:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-25 19:29:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-25 19:29:10,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 19:29:10,271 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-25 19:29:10,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:29:10 BoogieIcfgContainer [2021-08-25 19:29:10,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 19:29:10,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 19:29:10,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 19:29:10,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 19:29:10,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:29:09" (1/3) ... [2021-08-25 19:29:10,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0fa299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:29:10, skipping insertion in model container [2021-08-25 19:29:10,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:29:09" (2/3) ... [2021-08-25 19:29:10,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0fa299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:29:10, skipping insertion in model container [2021-08-25 19:29:10,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:29:10" (3/3) ... [2021-08-25 19:29:10,279 INFO L111 eAbstractionObserver]: Analyzing ICFG res2f.c [2021-08-25 19:29:10,283 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 19:29:10,283 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 19:29:10,320 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 19:29:10,326 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 [2021-08-25 19:29:10,326 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 19:29:10,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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) [2021-08-25 19:29:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-25 19:29:10,342 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:29:10,342 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:29:10,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:29:10,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:29:10,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2021-08-25 19:29:10,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:29:10,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910601347] [2021-08-25 19:29:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:29:10,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:29:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:29:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:29:10,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:29:10,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910601347] [2021-08-25 19:29:10,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910601347] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:29:10,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:29:10,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 19:29:10,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384699114] [2021-08-25 19:29:10,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 19:29:10,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:29:10,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 19:29:10,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 19:29:10,517 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:29:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:29:10,535 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2021-08-25 19:29:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 19:29:10,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-25 19:29:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:29:10,542 INFO L225 Difference]: With dead ends: 56 [2021-08-25 19:29:10,542 INFO L226 Difference]: Without dead ends: 26 [2021-08-25 19:29:10,545 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 19:29:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-08-25 19:29:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-08-25 19:29:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 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) [2021-08-25 19:29:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-08-25 19:29:10,574 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2021-08-25 19:29:10,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:29:10,575 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-08-25 19:29:10,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:29:10,576 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-08-25 19:29:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-25 19:29:10,576 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:29:10,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:29:10,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 19:29:10,577 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:29:10,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:29:10,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2021-08-25 19:29:10,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:29:10,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176641981] [2021-08-25 19:29:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:29:10,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:29:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:29:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:29:10,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:29:10,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176641981] [2021-08-25 19:29:10,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176641981] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:29:10,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:29:10,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 19:29:10,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257239790] [2021-08-25 19:29:10,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 19:29:10,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:29:10,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 19:29:10,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 19:29:10,734 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:29:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:29:10,883 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2021-08-25 19:29:10,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 19:29:10,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-25 19:29:10,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:29:10,886 INFO L225 Difference]: With dead ends: 57 [2021-08-25 19:29:10,886 INFO L226 Difference]: Without dead ends: 38 [2021-08-25 19:29:10,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 19:29:10,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-25 19:29:10,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-08-25 19:29:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) [2021-08-25 19:29:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-08-25 19:29:10,901 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2021-08-25 19:29:10,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:29:10,901 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-08-25 19:29:10,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:29:10,902 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-08-25 19:29:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-25 19:29:10,903 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:29:10,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:29:10,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 19:29:10,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:29:10,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:29:10,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2021-08-25 19:29:10,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:29:10,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309393892] [2021-08-25 19:29:10,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:29:10,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:29:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 19:29:11,012 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 19:29:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 19:29:11,070 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-25 19:29:11,070 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 19:29:11,071 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 19:29:11,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 19:29:11,077 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 19:29:11,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:29:11 BoogieIcfgContainer [2021-08-25 19:29:11,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 19:29:11,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 19:29:11,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 19:29:11,136 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 19:29:11,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:29:10" (3/4) ... [2021-08-25 19:29:11,139 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-25 19:29:11,202 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 19:29:11,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 19:29:11,205 INFO L168 Benchmark]: Toolchain (without parser) took 1584.82 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.1 MB in the beginning and 27.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-08-25 19:29:11,206 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 38.4 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:29:11,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.31 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 40.1 MB in the end (delta: -5.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-08-25 19:29:11,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.92 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 38.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 19:29:11,207 INFO L168 Benchmark]: Boogie Preprocessor took 24.53 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 37.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:29:11,207 INFO L168 Benchmark]: RCFGBuilder took 406.66 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 31.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-08-25 19:29:11,208 INFO L168 Benchmark]: TraceAbstraction took 856.97 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 30.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-08-25 19:29:11,208 INFO L168 Benchmark]: Witness Printer took 72.57 ms. Allocated memory is still 71.3 MB. Free memory was 30.3 MB in the beginning and 27.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 19:29:11,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 38.4 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 186.31 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 40.1 MB in the end (delta: -5.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.92 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 38.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.53 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 37.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 406.66 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 31.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 856.97 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 30.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Witness Printer took 72.57 ms. Allocated memory is still 71.3 MB. Free memory was 30.3 MB in the beginning and 27.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 1 [L34] i=0 VAL [N=1] [L34] COND TRUE i