./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s12iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s12iff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU --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 3b77a49aa9e2fe58d44cd30e10a0c2d54049996239a42f9eb129163eea28c3fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:16:21,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:16:21,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:16:21,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:16:21,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:16:21,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:16:21,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:16:21,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:16:21,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:16:21,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:16:21,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:16:21,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:16:21,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:16:21,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:16:21,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:16:21,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:16:21,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:16:21,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:16:21,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:16:21,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:16:21,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:16:21,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:16:21,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:16:21,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:16:21,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:16:21,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:16:21,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:16:21,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:16:21,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:16:21,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:16:21,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:16:21,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:16:21,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:16:21,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:16:21,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:16:21,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:16:21,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:16:21,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:16:21,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:16:21,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:16:21,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:16:21,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 23:16:21,312 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:16:21,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:16:21,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:16:21,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:16:21,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:16:21,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:16:21,321 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:16:21,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:16:21,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:16:21,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:16:21,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:16:21,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:16:21,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:16:21,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:16:21,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:16:21,324 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:16:21,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:16:21,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:16:21,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:16:21,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:16:21,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:16:21,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:16:21,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:16:21,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:16:21,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:16:21,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:16:21,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:16:21,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:16:21,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:16:21,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:16:21,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:16:21,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:16:21,329 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b77a49aa9e2fe58d44cd30e10a0c2d54049996239a42f9eb129163eea28c3fb [2021-11-02 23:16:21,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:16:21,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:16:21,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:16:21,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:16:21,628 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:16:21,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/array-fpi/s12iff.c [2021-11-02 23:16:21,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/data/bbefc6122/3a0e57594cbb4187a226e3626ec2b129/FLAG17dcdbdda [2021-11-02 23:16:22,143 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:16:22,145 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/sv-benchmarks/c/array-fpi/s12iff.c [2021-11-02 23:16:22,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/data/bbefc6122/3a0e57594cbb4187a226e3626ec2b129/FLAG17dcdbdda [2021-11-02 23:16:22,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/data/bbefc6122/3a0e57594cbb4187a226e3626ec2b129 [2021-11-02 23:16:22,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:16:22,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:16:22,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:16:22,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:16:22,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:16:22,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df575bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22, skipping insertion in model container [2021-11-02 23:16:22,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:16:22,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:16:22,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/sv-benchmarks/c/array-fpi/s12iff.c[589,602] [2021-11-02 23:16:22,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:16:22,794 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:16:22,806 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/sv-benchmarks/c/array-fpi/s12iff.c[589,602] [2021-11-02 23:16:22,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:16:22,829 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:16:22,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22 WrapperNode [2021-11-02 23:16:22,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:16:22,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:16:22,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:16:22,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:16:22,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:16:22,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:16:22,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:16:22,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:16:22,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:16:22,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:16:22,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:16:22,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:16:22,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (1/1) ... [2021-11-02 23:16:22,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:16:22,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:16:22,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:16:22,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:16:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:16:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:16:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:16:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:16:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:16:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:16:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:16:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:16:23,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:16:23,230 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-02 23:16:23,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:16:23 BoogieIcfgContainer [2021-11-02 23:16:23,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:16:23,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:16:23,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:16:23,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:16:23,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:16:22" (1/3) ... [2021-11-02 23:16:23,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26571141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:16:23, skipping insertion in model container [2021-11-02 23:16:23,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:16:22" (2/3) ... [2021-11-02 23:16:23,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26571141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:16:23, skipping insertion in model container [2021-11-02 23:16:23,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:16:23" (3/3) ... [2021-11-02 23:16:23,241 INFO L111 eAbstractionObserver]: Analyzing ICFG s12iff.c [2021-11-02 23:16:23,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:16:23,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 23:16:23,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:16:23,298 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, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:16:23,299 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 23:16:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) [2021-11-02 23:16:23,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-02 23:16:23,317 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:16:23,318 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:16:23,318 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:16:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:16:23,324 INFO L85 PathProgramCache]: Analyzing trace with hash -845308063, now seen corresponding path program 1 times [2021-11-02 23:16:23,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:16:23,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357718418] [2021-11-02 23:16:23,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:16:23,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:16:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:16:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:16:23,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:16:23,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357718418] [2021-11-02 23:16:23,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357718418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:16:23,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:16:23,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:16:23,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156736216] [2021-11-02 23:16:23,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:16:23,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:16:23,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:16:23,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:16:23,548 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-02 23:16:23,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:16:23,563 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2021-11-02 23:16:23,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:16:23,565 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2021-11-02 23:16:23,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:16:23,572 INFO L225 Difference]: With dead ends: 42 [2021-11-02 23:16:23,572 INFO L226 Difference]: Without dead ends: 19 [2021-11-02 23:16:23,574 INFO L786 BasicCegarLoop]: 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 [2021-11-02 23:16:23,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-02 23:16:23,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-02 23:16:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 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) [2021-11-02 23:16:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-02 23:16:23,604 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2021-11-02 23:16:23,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:16:23,604 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-02 23:16:23,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-02 23:16:23,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-02 23:16:23,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-02 23:16:23,606 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:16:23,606 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:16:23,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:16:23,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:16:23,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:16:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1238662774, now seen corresponding path program 1 times [2021-11-02 23:16:23,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:16:23,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746070792] [2021-11-02 23:16:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:16:23,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:16:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:16:23,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:16:23,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:16:23,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746070792] [2021-11-02 23:16:23,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746070792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:16:23,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:16:23,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:16:23,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943592402] [2021-11-02 23:16:23,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:16:23,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:16:23,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:16:23,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:16:23,735 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-11-02 23:16:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:16:23,826 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2021-11-02 23:16:23,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:16:23,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-11-02 23:16:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:16:23,828 INFO L225 Difference]: With dead ends: 39 [2021-11-02 23:16:23,829 INFO L226 Difference]: Without dead ends: 27 [2021-11-02 23:16:23,830 INFO L786 BasicCegarLoop]: 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 [2021-11-02 23:16:23,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-02 23:16:23,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2021-11-02 23:16:23,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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) [2021-11-02 23:16:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-11-02 23:16:23,840 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2021-11-02 23:16:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:16:23,840 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-11-02 23:16:23,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-11-02 23:16:23,841 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-02 23:16:23,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-02 23:16:23,842 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:16:23,843 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:16:23,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:16:23,845 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:16:23,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:16:23,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1944018757, now seen corresponding path program 1 times [2021-11-02 23:16:23,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:16:23,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932940013] [2021-11-02 23:16:23,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:16:23,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:16:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:16:23,938 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:16:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:16:24,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:16:24,081 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-02 23:16:24,082 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:16:24,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:16:24,088 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-02 23:16:24,091 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:16:24,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:16:24 BoogieIcfgContainer [2021-11-02 23:16:24,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:16:24,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:16:24,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:16:24,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:16:24,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:16:23" (3/4) ... [2021-11-02 23:16:24,158 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-02 23:16:24,231 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ba0ce1-9966-47bd-adb2-74e3e49aee25/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 23:16:24,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:16:24,233 INFO L168 Benchmark]: Toolchain (without parser) took 1714.50 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 77.9 MB in the beginning and 115.6 MB in the end (delta: -37.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:16:24,233 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 115.3 MB. Free memory is still 94.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:16:24,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.13 ms. Allocated memory is still 115.3 MB. Free memory was 77.7 MB in the beginning and 88.9 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:16:24,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.41 ms. Allocated memory is still 115.3 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:16:24,240 INFO L168 Benchmark]: Boogie Preprocessor took 26.76 ms. Allocated memory is still 115.3 MB. Free memory was 87.3 MB in the beginning and 85.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:16:24,240 INFO L168 Benchmark]: RCFGBuilder took 338.80 ms. Allocated memory is still 115.3 MB. Free memory was 85.8 MB in the beginning and 74.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-02 23:16:24,241 INFO L168 Benchmark]: TraceAbstraction took 920.65 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 74.2 MB in the beginning and 118.5 MB in the end (delta: -44.3 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-11-02 23:16:24,241 INFO L168 Benchmark]: Witness Printer took 76.22 ms. Allocated memory is still 144.7 MB. Free memory was 118.5 MB in the beginning and 115.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:16:24,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 115.3 MB. Free memory is still 94.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.13 ms. Allocated memory is still 115.3 MB. Free memory was 77.7 MB in the beginning and 88.9 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.41 ms. Allocated memory is still 115.3 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.76 ms. Allocated memory is still 115.3 MB. Free memory was 87.3 MB in the beginning and 85.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 338.80 ms. Allocated memory is still 115.3 MB. Free memory was 85.8 MB in the beginning and 74.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 920.65 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 74.2 MB in the beginning and 118.5 MB in the end (delta: -44.3 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * Witness Printer took 76.22 ms. Allocated memory is still 144.7 MB. Free memory was 118.5 MB in the beginning and 115.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 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, 0.0s 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) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=1] [L32] COND TRUE i