./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-007.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-007.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 ................................................................................................................................................................................................................................................................................................................................................................ 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-e943c26 [2021-10-24 10:02:04,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:02:04,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:02:04,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:02:04,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:02:04,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:02:04,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:02:04,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:02:04,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:02:04,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:02:04,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:02:04,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:02:04,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:02:04,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:02:04,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:02:04,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:02:04,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:02:04,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:02:04,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:02:04,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:02:04,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:02:04,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:02:04,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:02:04,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:02:04,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:02:04,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:02:04,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:02:04,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:02:04,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:02:04,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:02:04,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:02:04,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:02:04,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:02:04,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:02:04,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:02:04,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:02:04,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:02:04,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:02:04,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:02:04,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:02:04,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:02:04,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:02:04,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:02:04,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:02:04,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:02:04,292 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:02:04,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:02:04,293 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:02:04,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:02:04,293 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:02:04,293 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:02:04,294 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:02:04,301 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:02:04,301 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:02:04,301 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:02:04,302 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:02:04,302 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:02:04,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:02:04,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:02:04,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:02:04,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:02:04,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:02:04,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:02:04,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:02:04,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:02:04,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:02:04,305 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:02:04,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:02:04,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:02:04,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:02:04,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:02:04,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:02:04,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:02:04,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:02:04,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:02:04,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:02:04,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:02:04,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:02:04,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:02:04,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:02:04,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:02:04,310 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2021-10-24 10:02:04,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:02:04,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:02:04,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:02:04,664 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:02:04,665 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:02:04,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/xcsp/AllInterval-007.c [2021-10-24 10:02:04,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/data/aafcd72e0/fba6ba6548444fb2a1d80ca11703e21e/FLAG29116c4b5 [2021-10-24 10:02:05,190 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:02:05,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/sv-benchmarks/c/xcsp/AllInterval-007.c [2021-10-24 10:02:05,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/data/aafcd72e0/fba6ba6548444fb2a1d80ca11703e21e/FLAG29116c4b5 [2021-10-24 10:02:05,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/data/aafcd72e0/fba6ba6548444fb2a1d80ca11703e21e [2021-10-24 10:02:05,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:02:05,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:02:05,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:02:05,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:02:05,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:02:05,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:05,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca7b30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05, skipping insertion in model container [2021-10-24 10:02:05,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:05,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:02:05,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:02:05,862 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_74edc2b1-f223-46b4-b0da-40bd2334b7b3/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2021-10-24 10:02:05,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:02:05,876 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:02:05,907 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_74edc2b1-f223-46b4-b0da-40bd2334b7b3/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2021-10-24 10:02:05,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:02:05,922 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:02:05,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05 WrapperNode [2021-10-24 10:02:05,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:02:05,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:02:05,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:02:05,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:02:05,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:05,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:02:06,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:02:06,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:02:06,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:02:06,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:02:06,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:02:06,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:02:06,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:02:06,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (1/1) ... [2021-10-24 10:02:06,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:02:06,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:02:06,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:02:06,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:02:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:02:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:02:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:02:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:02:08,437 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:02:08,438 INFO L299 CfgBuilder]: Removed 140 assume(true) statements. [2021-10-24 10:02:08,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:08 BoogieIcfgContainer [2021-10-24 10:02:08,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:02:08,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:02:08,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:02:08,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:02:08,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:02:05" (1/3) ... [2021-10-24 10:02:08,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8467465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:02:08, skipping insertion in model container [2021-10-24 10:02:08,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:05" (2/3) ... [2021-10-24 10:02:08,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8467465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:02:08, skipping insertion in model container [2021-10-24 10:02:08,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:08" (3/3) ... [2021-10-24 10:02:08,448 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2021-10-24 10:02:08,454 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:02:08,454 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:02:08,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:02:08,507 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=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 [2021-10-24 10:02:08,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:02:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 4 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-10-24 10:02:08,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-24 10:02:08,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:02:08,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-24 10:02:08,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:02:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:02:08,531 INFO L82 PathProgramCache]: Analyzing trace with hash 24669, now seen corresponding path program 1 times [2021-10-24 10:02:08,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:02:08,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907474249] [2021-10-24 10:02:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:02:08,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:02:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:02:09,623 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:02:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:02:10,133 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:02:10,136 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:02:10,137 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:02:10,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:02:10,145 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:02:10,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:02:10 BoogieIcfgContainer [2021-10-24 10:02:10,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:02:10,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:02:10,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:02:10,197 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:02:10,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:08" (3/4) ... [2021-10-24 10:02:10,200 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:02:10,266 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:02:10,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:02:10,271 INFO L168 Benchmark]: Toolchain (without parser) took 4689.06 ms. Allocated memory was 107.0 MB in the beginning and 161.5 MB in the end (delta: 54.5 MB). Free memory was 69.4 MB in the beginning and 75.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:10,271 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 107.0 MB. Free memory was 85.7 MB in the beginning and 85.6 MB in the end (delta: 72.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:02:10,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.78 ms. Allocated memory is still 107.0 MB. Free memory was 69.3 MB in the beginning and 81.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:10,273 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.95 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 77.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:10,274 INFO L168 Benchmark]: Boogie Preprocessor took 45.58 ms. Allocated memory is still 107.0 MB. Free memory was 77.8 MB in the beginning and 75.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:10,274 INFO L168 Benchmark]: RCFGBuilder took 2384.44 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 75.6 MB in the beginning and 67.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:10,275 INFO L168 Benchmark]: TraceAbstraction took 1752.28 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 66.9 MB in the beginning and 78.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:10,278 INFO L168 Benchmark]: Witness Printer took 70.45 ms. Allocated memory is still 161.5 MB. Free memory was 78.0 MB in the beginning and 75.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:10,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 107.0 MB. Free memory was 85.7 MB in the beginning and 85.6 MB in the end (delta: 72.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.78 ms. Allocated memory is still 107.0 MB. Free memory was 69.3 MB in the beginning and 81.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.95 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 77.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.58 ms. Allocated memory is still 107.0 MB. Free memory was 77.8 MB in the beginning and 75.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2384.44 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 75.6 MB in the beginning and 67.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1752.28 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 66.9 MB in the beginning and 78.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. * Witness Printer took 70.45 ms. Allocated memory is still 161.5 MB. Free memory was 78.0 MB in the beginning and 75.9 MB in the end (delta: 2.1 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, 0.0ms 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: 135]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int var9; [L64] var9 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L67] int var10; [L68] var10 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L71] int var11; [L72] var11 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L75] int var12; [L76] var12 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L79] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L116] int var_for_abs; [L117] var_for_abs = var0 - var1 [L118] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L118] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L120] var_for_abs = var1 - var2 [L121] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L121] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L123] var_for_abs = var2 - var3 [L124] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L124] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L126] var_for_abs = var3 - var4 [L127] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L127] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L129] var_for_abs = var4 - var5 [L130] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L130] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L132] var_for_abs = var5 - var6 [L133] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L133] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L135] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1645.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 7.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.8ms SsaConstructionTime, 1023.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:02:10,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74edc2b1-f223-46b4-b0da-40bd2334b7b3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...