./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8 --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 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:11,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:11,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:11,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:11,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:11,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:11,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:11,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:11,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:11,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:11,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:11,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:11,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:11,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:11,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:11,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:11,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:11,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:11,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:11,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:11,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:11,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:11,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:11,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:11,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:11,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:11,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:11,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:11,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:11,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:11,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:11,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:11,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:11,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:11,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:11,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:11,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:11,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:11,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:11,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:11,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:11,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:42:11,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:11,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:11,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:11,261 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:11,261 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:11,261 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:11,261 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:42:11,262 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:11,269 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:11,269 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:42:11,270 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:42:11,271 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:11,271 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:42:11,271 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:42:11,272 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:42:11,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:11,273 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:42:11,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:42:11,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:42:11,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:11,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:11,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:11,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:11,275 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:11,275 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:42:11,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:11,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:11,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:11,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:11,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:11,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:11,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:11,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:11,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:11,278 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:42:11,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:42:11,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:11,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:11,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:11,279 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_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2021-11-07 01:42:11,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:11,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:11,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:11,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:11,691 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:11,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-11-07 01:42:11,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/d95adc734/d7c1902a67ce48c08917cb722dfde7ff/FLAGd96c63894 [2021-11-07 01:42:12,268 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:12,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-11-07 01:42:12,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/d95adc734/d7c1902a67ce48c08917cb722dfde7ff/FLAGd96c63894 [2021-11-07 01:42:12,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/d95adc734/d7c1902a67ce48c08917cb722dfde7ff [2021-11-07 01:42:12,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:12,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:12,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:12,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:12,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:12,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:12" (1/1) ... [2021-11-07 01:42:12,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f74257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:12, skipping insertion in model container [2021-11-07 01:42:12,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:12" (1/1) ... [2021-11-07 01:42:12,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:12,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:12,857 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_49130b24-fc11-4e50-9e89-d0b5818373b3/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-11-07 01:42:13,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:13,011 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) [2021-11-07 01:42:13,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ecd9261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:13, skipping insertion in model container [2021-11-07 01:42:13,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:13,018 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:42:13,020 INFO L168 Benchmark]: Toolchain (without parser) took 400.57 ms. Allocated memory is still 88.1 MB. Free memory was 47.1 MB in the beginning and 60.6 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:13,021 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:42:13,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.87 ms. Allocated memory is still 88.1 MB. Free memory was 46.8 MB in the beginning and 60.6 MB in the end (delta: -13.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:13,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.87 ms. Allocated memory is still 88.1 MB. Free memory was 46.8 MB in the beginning and 60.6 MB in the end (delta: -13.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 125]: 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_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8 --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 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:15,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:15,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:15,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:15,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:15,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:15,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:15,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:15,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:15,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:15,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:15,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:15,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:15,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:15,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:15,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:15,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:15,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:15,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:15,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:15,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:15,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:15,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:15,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:15,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:15,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:15,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:15,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:15,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:15,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:15,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:15,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:15,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:15,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:15,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:15,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:15,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:15,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:15,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:15,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:15,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:15,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:42:15,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:15,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:15,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:15,635 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:15,636 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:15,636 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:15,636 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:15,636 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:15,637 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:15,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:15,639 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:42:15,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:42:15,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:15,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:15,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:15,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:15,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:15,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:42:15,642 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:42:15,642 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:42:15,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:15,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:15,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:15,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:15,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:42:15,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:15,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:15,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:15,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:15,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:15,645 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:42:15,645 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:15,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:15,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:15,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:15,646 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_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2021-11-07 01:42:16,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:16,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:16,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:16,062 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:16,065 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:16,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-11-07 01:42:16,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/c550930aa/dbe0cb3cf6454b87a8a3ee4871cba6cf/FLAGc28e80535 [2021-11-07 01:42:16,826 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:16,829 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-11-07 01:42:16,845 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/c550930aa/dbe0cb3cf6454b87a8a3ee4871cba6cf/FLAGc28e80535 [2021-11-07 01:42:17,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/data/c550930aa/dbe0cb3cf6454b87a8a3ee4871cba6cf [2021-11-07 01:42:17,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:17,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:17,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:17,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:17,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:17,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@650f0e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17, skipping insertion in model container [2021-11-07 01:42:17,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:17,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:17,322 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_49130b24-fc11-4e50-9e89-d0b5818373b3/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-11-07 01:42:17,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:17,533 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:42:17,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:17,552 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_49130b24-fc11-4e50-9e89-d0b5818373b3/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-11-07 01:42:17,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:17,637 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:42:17,656 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_49130b24-fc11-4e50-9e89-d0b5818373b3/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-11-07 01:42:17,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:17,784 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:42:17,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17 WrapperNode [2021-11-07 01:42:17,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:17,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:17,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:42:17,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:42:17,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:17,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:42:17,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:42:17,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:42:17,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:42:17,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:42:17,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:42:17,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:42:17,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (1/1) ... [2021-11-07 01:42:17,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:17,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:17,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:42:17,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:42:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:42:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:42:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:42:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:42:20,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:42:20,533 INFO L299 CfgBuilder]: Removed 74 assume(true) statements. [2021-11-07 01:42:20,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:20 BoogieIcfgContainer [2021-11-07 01:42:20,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:42:20,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:42:20,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:42:20,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:42:20,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:42:17" (1/3) ... [2021-11-07 01:42:20,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caa7692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:20, skipping insertion in model container [2021-11-07 01:42:20,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:17" (2/3) ... [2021-11-07 01:42:20,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caa7692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:20, skipping insertion in model container [2021-11-07 01:42:20,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:20" (3/3) ... [2021-11-07 01:42:20,544 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2021-11-07 01:42:20,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:42:20,550 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:42:20,610 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:42:20,617 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 [2021-11-07 01:42:20,617 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:42:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 59 states have (on average 1.576271186440678) internal successors, (93), 62 states have internal predecessors, (93), 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) [2021-11-07 01:42:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:42:20,639 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:20,639 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:20,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:42:20,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:20,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1626458267, now seen corresponding path program 1 times [2021-11-07 01:42:20,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:20,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185820530] [2021-11-07 01:42:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:20,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:20,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:20,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:20,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:42:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:20,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:42:20,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:20,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:21,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:21,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185820530] [2021-11-07 01:42:21,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185820530] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:21,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:21,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:42:21,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723368198] [2021-11-07 01:42:21,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:42:21,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:21,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:42:21,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:42:21,047 INFO L87 Difference]: Start difference. First operand has 63 states, 59 states have (on average 1.576271186440678) internal successors, (93), 62 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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) [2021-11-07 01:42:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:21,070 INFO L93 Difference]: Finished difference Result 120 states and 179 transitions. [2021-11-07 01:42:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:42:21,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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) Word has length 18 [2021-11-07 01:42:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:21,081 INFO L225 Difference]: With dead ends: 120 [2021-11-07 01:42:21,082 INFO L226 Difference]: Without dead ends: 59 [2021-11-07 01:42:21,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:42:21,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-07 01:42:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-11-07 01:42:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 58 states have internal predecessors, (81), 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) [2021-11-07 01:42:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-11-07 01:42:21,123 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2021-11-07 01:42:21,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:21,123 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-11-07 01:42:21,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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) [2021-11-07 01:42:21,124 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2021-11-07 01:42:21,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:42:21,125 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:21,125 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:21,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:21,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:21,339 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:42:21,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:21,340 INFO L85 PathProgramCache]: Analyzing trace with hash 715427514, now seen corresponding path program 1 times [2021-11-07 01:42:21,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:21,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644281380] [2021-11-07 01:42:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:21,341 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:21,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:21,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:21,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:42:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:21,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:42:21,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:21,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:21,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:21,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644281380] [2021-11-07 01:42:21,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644281380] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:21,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:21,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:42:21,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126334227] [2021-11-07 01:42:21,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:42:21,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:21,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:42:21,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:42:21,702 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-07 01:42:21,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:21,722 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2021-11-07 01:42:21,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:42:21,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-07 01:42:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:21,725 INFO L225 Difference]: With dead ends: 59 [2021-11-07 01:42:21,726 INFO L226 Difference]: Without dead ends: 29 [2021-11-07 01:42:21,727 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:42:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-07 01:42:21,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-07 01:42:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 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) [2021-11-07 01:42:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2021-11-07 01:42:21,745 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 19 [2021-11-07 01:42:21,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:21,745 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2021-11-07 01:42:21,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-07 01:42:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2021-11-07 01:42:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:42:21,747 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:21,752 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:21,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 01:42:21,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:21,964 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:42:21,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:21,965 INFO L85 PathProgramCache]: Analyzing trace with hash 930808050, now seen corresponding path program 1 times [2021-11-07 01:42:21,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:21,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286394820] [2021-11-07 01:42:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:21,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:21,968 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:22,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:42:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:22,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:42:22,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:22,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:22,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:22,429 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:22,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286394820] [2021-11-07 01:42:22,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286394820] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:22,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:22,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:42:22,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507733528] [2021-11-07 01:42:22,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:42:22,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:22,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:42:22,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:42:22,436 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-11-07 01:42:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:22,746 INFO L93 Difference]: Finished difference Result 244 states and 381 transitions. [2021-11-07 01:42:22,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:42:22,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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 24 [2021-11-07 01:42:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:22,750 INFO L225 Difference]: With dead ends: 244 [2021-11-07 01:42:22,750 INFO L226 Difference]: Without dead ends: 221 [2021-11-07 01:42:22,751 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:42:22,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-07 01:42:22,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 66. [2021-11-07 01:42:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 65 states have internal predecessors, (94), 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) [2021-11-07 01:42:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2021-11-07 01:42:22,767 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 24 [2021-11-07 01:42:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:22,768 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2021-11-07 01:42:22,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-11-07 01:42:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2021-11-07 01:42:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:42:22,770 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:22,770 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:22,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:42:22,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:22,985 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:42:22,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:22,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1487700112, now seen corresponding path program 1 times [2021-11-07 01:42:22,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:22,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968597809] [2021-11-07 01:42:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:22,986 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:22,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:22,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:23,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:42:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:42:25,276 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:42:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:42:26,565 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 01:42:26,565 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:42:26,566 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:42:26,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:42:26,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:42:26,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:26,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:26,789 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 01:42:26,793 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:42:26,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:42:26 BoogieIcfgContainer [2021-11-07 01:42:26,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:42:26,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:42:26,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:42:26,906 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:42:26,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:20" (3/4) ... [2021-11-07 01:42:26,908 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:42:26,994 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:42:26,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:42:27,000 INFO L168 Benchmark]: Toolchain (without parser) took 9918.37 ms. Allocated memory was 54.5 MB in the beginning and 94.4 MB in the end (delta: 39.8 MB). Free memory was 30.8 MB in the beginning and 32.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:27,001 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:42:27,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.30 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.6 MB in the beginning and 39.1 MB in the end (delta: -8.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:27,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.66 ms. Allocated memory is still 69.2 MB. Free memory was 39.1 MB in the beginning and 51.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:27,003 INFO L168 Benchmark]: Boogie Preprocessor took 38.65 ms. Allocated memory is still 69.2 MB. Free memory was 51.3 MB in the beginning and 49.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:27,003 INFO L168 Benchmark]: RCFGBuilder took 2613.78 ms. Allocated memory is still 69.2 MB. Free memory was 49.3 MB in the beginning and 35.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:27,003 INFO L168 Benchmark]: TraceAbstraction took 6367.53 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 34.4 MB in the beginning and 42.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:27,006 INFO L168 Benchmark]: Witness Printer took 93.63 ms. Allocated memory is still 94.4 MB. Free memory was 42.9 MB in the beginning and 32.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:27,008 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 54.5 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 699.30 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.6 MB in the beginning and 39.1 MB in the end (delta: -8.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.66 ms. Allocated memory is still 69.2 MB. Free memory was 39.1 MB in the beginning and 51.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.65 ms. Allocated memory is still 69.2 MB. Free memory was 51.3 MB in the beginning and 49.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2613.78 ms. Allocated memory is still 69.2 MB. Free memory was 49.3 MB in the beginning and 35.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6367.53 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 34.4 MB in the beginning and 42.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 93.63 ms. Allocated memory is still 94.4 MB. Free memory was 42.9 MB in the beginning and 32.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L472] int pumpRunning = 0; [L473] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L789] int waterLevel = 1; [L790] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L627] int splverifierCounter ; [L628] int tmp ; [L629] int tmp___0 ; [L630] int tmp___1 ; [L631] int tmp___2 ; [L634] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L636] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L638] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L644] tmp = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] COND TRUE waterLevel < 2 [L808] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp___0 = __VERIFIER_nondet_int() [L656] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L664] tmp___2 = __VERIFIER_nondet_int() [L666] COND TRUE \read(tmp___2) [L583] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L487] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L590] int tmp ; [L591] int tmp___0 ; [L592] int tmp___1 ; [L828] int retValue_acc ; [L831] retValue_acc = methaneLevelCritical [L832] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isMethaneLevelCritical() [L598] COND FALSE !(\read(tmp)) [L860] int retValue_acc ; [L863] retValue_acc = waterLevel [L864] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] tmp___0 = getWaterLevel() [L604] COND TRUE tmp___0 == 2 [L535] int retValue_acc ; [L538] retValue_acc = pumpRunning [L539] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] tmp___1 = isPumpRunning() [L608] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L92] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 92]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 63 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 186 SDtfs, 384 SDslu, 452 SDs, 0 SdLazy, 100 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 155 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 4 NumberOfNonLiveVariables, 590 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 01:42:27,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49130b24-fc11-4e50-9e89-d0b5818373b3/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE