./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i --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_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH --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 d48e7f91c207323ca4789c990d64e958c1524faa33e5de2c1f0c6fd7803f4f2e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:59:59,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:59:59,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:59:59,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:59:59,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:59:59,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:59:59,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:59:59,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:59:59,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:59:59,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:59:59,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:59:59,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:59:59,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:59:59,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:59:59,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:59:59,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:59:59,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:59:59,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:59:59,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:59:59,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:59:59,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:59:59,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:59:59,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:59:59,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:59:59,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:59:59,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:59:59,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:59:59,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:59:59,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:59:59,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:59:59,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:59:59,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:59:59,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:59:59,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:59:59,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:59:59,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:59:59,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:59:59,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:59:59,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:59:59,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:59:59,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:59:59,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:59:59,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:59:59,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:59:59,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:59:59,326 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:59:59,327 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:59:59,327 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:59:59,327 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:59:59,327 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:59:59,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:59:59,328 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:59:59,328 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:59:59,329 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:59:59,329 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:59:59,329 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:59:59,330 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:59:59,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:59:59,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:59:59,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:59:59,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:59:59,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:59:59,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:59:59,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:59:59,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:59:59,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:59:59,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:59:59,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:59:59,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:59:59,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:59:59,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:59:59,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:59:59,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:59:59,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:59:59,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:59:59,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:59:59,336 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:59:59,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:59:59,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:59:59,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:59:59,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:59:59,338 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_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d48e7f91c207323ca4789c990d64e958c1524faa33e5de2c1f0c6fd7803f4f2e [2021-11-03 04:59:59,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:59:59,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:59:59,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:59:59,679 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:59:59,680 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:59:59,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i [2021-11-03 04:59:59,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/9e7ad7407/a5b16e0fa4314039bd5cb9c695f44642/FLAGd169dee6c [2021-11-03 05:00:00,443 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:00:00,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i [2021-11-03 05:00:00,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/9e7ad7407/a5b16e0fa4314039bd5cb9c695f44642/FLAGd169dee6c [2021-11-03 05:00:00,757 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/9e7ad7407/a5b16e0fa4314039bd5cb9c695f44642 [2021-11-03 05:00:00,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:00:00,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:00:00,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:00,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:00:00,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:00:00,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:00" (1/1) ... [2021-11-03 05:00:00,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d4087a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:00, skipping insertion in model container [2021-11-03 05:00:00,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:00" (1/1) ... [2021-11-03 05:00:00,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:00:00,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:00:00,950 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_0424e021-e18c-4c32-8a17-0a61785ee053/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2021-11-03 05:00:00,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:00:01,003 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:00:01,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25fa8f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:01, skipping insertion in model container [2021-11-03 05:00:01,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:01,005 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:00:01,007 INFO L168 Benchmark]: Toolchain (without parser) took 237.87 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.2 MB in the beginning and 83.8 MB in the end (delta: -31.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:00:01,008 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:00:01,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.73 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.0 MB in the beginning and 83.8 MB in the end (delta: -31.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:00:01,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.73 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.0 MB in the beginning and 83.8 MB in the end (delta: -31.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 34]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH --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 d48e7f91c207323ca4789c990d64e958c1524faa33e5de2c1f0c6fd7803f4f2e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:00:03,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:00:03,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:00:03,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:00:03,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:00:03,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:00:03,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:00:03,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:00:03,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:00:03,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:00:03,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:00:03,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:00:03,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:00:03,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:00:03,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:00:03,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:00:03,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:00:03,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:00:03,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:00:03,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:00:03,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:00:03,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:00:03,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:00:03,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:00:03,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:00:03,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:00:03,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:00:03,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:00:03,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:00:03,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:00:03,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:00:03,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:00:03,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:00:03,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:00:03,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:00:03,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:00:03,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:00:03,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:00:03,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:00:03,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:00:03,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:00:03,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:00:03,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:00:03,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:00:03,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:00:03,318 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:00:03,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:00:03,319 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:00:03,319 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:00:03,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:00:03,319 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:00:03,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:00:03,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:00:03,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:00:03,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:00:03,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:00:03,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:00:03,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:00:03,323 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:00:03,323 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:00:03,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:00:03,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:00:03,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:00:03,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:00:03,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:00:03,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:00:03,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:00:03,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:00:03,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:00:03,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:00:03,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:00:03,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:00:03,325 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:00:03,326 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:00:03,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:00:03,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:00:03,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:00:03,326 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d48e7f91c207323ca4789c990d64e958c1524faa33e5de2c1f0c6fd7803f4f2e [2021-11-03 05:00:03,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:00:03,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:00:03,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:00:03,710 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:00:03,711 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:00:03,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i [2021-11-03 05:00:03,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/e33889644/706660648b6f4400a54a42b899fd63b3/FLAG0c9d2752d [2021-11-03 05:00:04,290 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:00:04,291 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i [2021-11-03 05:00:04,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/e33889644/706660648b6f4400a54a42b899fd63b3/FLAG0c9d2752d [2021-11-03 05:00:04,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/data/e33889644/706660648b6f4400a54a42b899fd63b3 [2021-11-03 05:00:04,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:00:04,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:00:04,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:04,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:00:04,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:00:04,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:04" (1/1) ... [2021-11-03 05:00:04,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1acea04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:04, skipping insertion in model container [2021-11-03 05:00:04,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:04" (1/1) ... [2021-11-03 05:00:04,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:00:04,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:00:04,897 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_0424e021-e18c-4c32-8a17-0a61785ee053/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2021-11-03 05:00:04,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:00:04,960 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:00:04,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:00:04,983 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_0424e021-e18c-4c32-8a17-0a61785ee053/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2021-11-03 05:00:05,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:00:05,015 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:00:05,040 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_0424e021-e18c-4c32-8a17-0a61785ee053/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2021-11-03 05:00:05,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:00:05,089 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:00:05,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05 WrapperNode [2021-11-03 05:00:05,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:05,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:00:05,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:00:05,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:00:05,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:00:05,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:00:05,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:00:05,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:00:05,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:00:05,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:00:05,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:00:05,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:00:05,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:00:05,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:00:05,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:00:05,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:00:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:00:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:00:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:00:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:00:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:00:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:00:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:00:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:00:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:00:05,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:00:05,667 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-03 05:00:05,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:00:05 BoogieIcfgContainer [2021-11-03 05:00:05,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:00:05,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:00:05,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:00:05,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:00:05,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:00:04" (1/3) ... [2021-11-03 05:00:05,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d053d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:00:05, skipping insertion in model container [2021-11-03 05:00:05,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (2/3) ... [2021-11-03 05:00:05,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d053d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:00:05, skipping insertion in model container [2021-11-03 05:00:05,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:00:05" (3/3) ... [2021-11-03 05:00:05,677 INFO L111 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_cond_init.i [2021-11-03 05:00:05,682 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:00:05,682 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:00:05,733 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:00:05,748 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 [2021-11-03 05:00:05,749 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:00:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-11-03 05:00:05,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 05:00:05,767 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:05,768 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:05,768 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:00:05,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:05,774 INFO L85 PathProgramCache]: Analyzing trace with hash 650130346, now seen corresponding path program 1 times [2021-11-03 05:00:05,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:05,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549103549] [2021-11-03 05:00:05,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:05,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:05,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:05,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:05,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:00:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:05,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:00:05,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:06,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:06,060 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:06,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549103549] [2021-11-03 05:00:06,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549103549] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:06,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:06,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:00:06,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359626934] [2021-11-03 05:00:06,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:00:06,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:06,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:00:06,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:00:06,091 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 05:00:06,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:06,106 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-11-03 05:00:06,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:00:06,108 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-03 05:00:06,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:06,115 INFO L225 Difference]: With dead ends: 31 [2021-11-03 05:00:06,115 INFO L226 Difference]: Without dead ends: 15 [2021-11-03 05:00:06,118 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:00:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-03 05:00:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-03 05:00:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2021-11-03 05:00:06,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-11-03 05:00:06,148 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 8 [2021-11-03 05:00:06,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:06,148 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-11-03 05:00:06,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 05:00:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-03 05:00:06,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 05:00:06,150 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:06,150 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:06,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:06,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:00:06,362 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:00:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 220693081, now seen corresponding path program 1 times [2021-11-03 05:00:06,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:06,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096439125] [2021-11-03 05:00:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:06,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:06,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:06,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:06,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:00:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:06,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:00:06,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:06,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:06,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:06,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:06,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096439125] [2021-11-03 05:00:06,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096439125] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:06,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:06,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:00:06,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272982867] [2021-11-03 05:00:06,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:00:06,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:06,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:00:06,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:00:06,531 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-03 05:00:06,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:06,586 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2021-11-03 05:00:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:00:06,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 8 [2021-11-03 05:00:06,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:06,588 INFO L225 Difference]: With dead ends: 37 [2021-11-03 05:00:06,588 INFO L226 Difference]: Without dead ends: 29 [2021-11-03 05:00:06,589 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:00:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-03 05:00:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2021-11-03 05:00:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-11-03 05:00:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-11-03 05:00:06,595 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 8 [2021-11-03 05:00:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:06,596 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-03 05:00:06,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-03 05:00:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-03 05:00:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 05:00:06,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:06,598 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:06,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:06,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:00:06,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:00:06,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:06,811 INFO L85 PathProgramCache]: Analyzing trace with hash 43755833, now seen corresponding path program 1 times [2021-11-03 05:00:06,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:06,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184142706] [2021-11-03 05:00:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:06,813 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:06,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:06,819 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:06,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:00:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:06,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:00:06,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:07,085 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:07,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:07,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:07,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184142706] [2021-11-03 05:00:07,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184142706] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:00:07,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1557786011] [2021-11-03 05:00:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:07,244 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:00:07,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:00:07,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:00:07,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-03 05:00:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:07,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:00:07,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:07,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:07,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1557786011] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:00:07,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131970195] [2021-11-03 05:00:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:07,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:00:07,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:00:07,576 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:00:07,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 05:00:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:07,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:00:07,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:07,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:07,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131970195] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:00:07,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:00:07,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-11-03 05:00:07,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047332279] [2021-11-03 05:00:07,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:00:07,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:07,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:00:07,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:00:07,858 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2021-11-03 05:00:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:08,124 INFO L93 Difference]: Finished difference Result 85 states and 103 transitions. [2021-11-03 05:00:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:00:08,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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 18 [2021-11-03 05:00:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:08,127 INFO L225 Difference]: With dead ends: 85 [2021-11-03 05:00:08,127 INFO L226 Difference]: Without dead ends: 77 [2021-11-03 05:00:08,128 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:00:08,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-03 05:00:08,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 41. [2021-11-03 05:00:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 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) [2021-11-03 05:00:08,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2021-11-03 05:00:08,138 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 18 [2021-11-03 05:00:08,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:08,139 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2021-11-03 05:00:08,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2021-11-03 05:00:08,139 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2021-11-03 05:00:08,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 05:00:08,141 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:08,141 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:08,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 05:00:08,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:08,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-11-03 05:00:08,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:00:08,758 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:00:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:08,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1601220345, now seen corresponding path program 2 times [2021-11-03 05:00:08,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:08,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146588040] [2021-11-03 05:00:08,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:00:08,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:08,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:08,761 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:08,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:00:08,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:00:08,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:00:08,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:00:08,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:09,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:09,480 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:09,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146588040] [2021-11-03 05:00:09,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146588040] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:00:09,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [562708416] [2021-11-03 05:00:09,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:00:09,481 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:00:09,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:00:09,483 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:00:09,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-03 05:00:09,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:00:09,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:00:09,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:00:09,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:09,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:10,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [562708416] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:00:10,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925174319] [2021-11-03 05:00:10,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:00:10,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:00:10,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:00:10,176 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:00:10,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 05:00:10,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:00:10,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:00:10,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:00:10,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:10,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:10,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925174319] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:00:10,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:00:10,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2021-11-03 05:00:10,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393842032] [2021-11-03 05:00:10,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 05:00:10,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:10,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 05:00:10,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-03 05:00:10,730 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 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) [2021-11-03 05:00:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:11,832 INFO L93 Difference]: Finished difference Result 181 states and 219 transitions. [2021-11-03 05:00:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 05:00:11,833 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 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 38 [2021-11-03 05:00:11,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:11,836 INFO L225 Difference]: With dead ends: 181 [2021-11-03 05:00:11,836 INFO L226 Difference]: Without dead ends: 173 [2021-11-03 05:00:11,838 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:00:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-03 05:00:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 81. [2021-11-03 05:00:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.2125) internal successors, (97), 80 states have internal predecessors, (97), 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) [2021-11-03 05:00:11,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2021-11-03 05:00:11,854 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 38 [2021-11-03 05:00:11,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:11,854 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2021-11-03 05:00:11,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 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) [2021-11-03 05:00:11,855 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2021-11-03 05:00:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 05:00:11,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:11,859 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:11,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:12,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:12,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:12,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:00:12,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:00:12,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:12,476 INFO L85 PathProgramCache]: Analyzing trace with hash 739613305, now seen corresponding path program 3 times [2021-11-03 05:00:12,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:12,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498321970] [2021-11-03 05:00:12,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:00:12,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:12,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:12,479 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:12,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:00:17,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-11-03 05:00:17,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:00:17,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:00:17,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:17,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:00:18,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:18,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498321970] [2021-11-03 05:00:18,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498321970] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:00:18,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1243144866] [2021-11-03 05:00:18,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:00:18,859 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:00:18,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:00:18,864 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:00:18,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-03 05:00:19,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:00:19,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139213825] [2021-11-03 05:00:19,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:00:19,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:00:19,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:00:19,205 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:00:19,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 1 [2021-11-03 05:00:19,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0424e021-e18c-4c32-8a17-0a61785ee053/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process