./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 21:55:00,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:55:00,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:55:00,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:55:00,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:55:00,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:55:00,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:55:00,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:55:00,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:55:00,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:55:00,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:55:00,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:55:00,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:55:00,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:55:00,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:55:00,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:55:00,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:55:00,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:55:00,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:55:00,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:55:00,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:55:00,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:55:00,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:55:00,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:55:00,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:55:00,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:55:00,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:55:00,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:55:00,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:55:00,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:55:00,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:55:00,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:55:00,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:55:00,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:55:00,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:55:00,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:55:00,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:55:00,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:55:00,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:55:00,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:55:00,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:55:00,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:55:00,230 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:55:00,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:55:00,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:55:00,231 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:55:00,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:55:00,231 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:55:00,231 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:55:00,231 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:55:00,231 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:55:00,231 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:55:00,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:55:00,232 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:55:00,232 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:55:00,232 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:55:00,232 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:55:00,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:55:00,233 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:55:00,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:55:00,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:55:00,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:55:00,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:55:00,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:55:00,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:55:00,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:55:00,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:55:00,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:55:00,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:55:00,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:55:00,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:55:00,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:55:00,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:55:00,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:55:00,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:55:00,236 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan 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(__VERIFIER_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 -> fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 [2019-12-07 21:55:00,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:55:00,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:55:00,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:55:00,358 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:55:00,358 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:55:00,358 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2019-12-07 21:55:00,396 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/5e0e57893/da92be3125114a47a068b6b2a60b581b/FLAG379aea78b [2019-12-07 21:55:00,733 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:55:00,734 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2019-12-07 21:55:00,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/5e0e57893/da92be3125114a47a068b6b2a60b581b/FLAG379aea78b [2019-12-07 21:55:00,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/5e0e57893/da92be3125114a47a068b6b2a60b581b [2019-12-07 21:55:00,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:55:00,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:55:00,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:55:00,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:55:00,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:55:00,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:55:00" (1/1) ... [2019-12-07 21:55:00,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c28c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:00, skipping insertion in model container [2019-12-07 21:55:00,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:55:00" (1/1) ... [2019-12-07 21:55:00,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:55:00,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:55:01,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:55:01,044 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) [2019-12-07 21:55:01,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f925baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:01, skipping insertion in model container [2019-12-07 21:55:01,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:55:01,045 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 21:55:01,047 INFO L168 Benchmark]: Toolchain (without parser) took 291.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:55:01,048 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:55:01,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:55:01,050 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 427]: 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... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 21:55:02,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:55:02,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:55:02,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:55:02,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:55:02,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:55:02,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:55:02,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:55:02,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:55:02,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:55:02,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:55:02,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:55:02,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:55:02,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:55:02,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:55:02,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:55:02,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:55:02,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:55:02,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:55:02,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:55:02,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:55:02,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:55:02,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:55:02,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:55:02,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:55:02,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:55:02,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:55:02,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:55:02,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:55:02,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:55:02,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:55:02,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:55:02,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:55:02,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:55:02,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:55:02,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:55:02,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:55:02,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:55:02,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:55:02,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:55:02,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:55:02,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:55:02,236 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:55:02,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:55:02,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:55:02,237 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:55:02,237 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:55:02,238 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:55:02,238 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:55:02,238 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:55:02,238 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:55:02,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:55:02,239 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:55:02,240 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:55:02,240 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:55:02,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:55:02,240 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:55:02,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:55:02,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:55:02,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:55:02,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:55:02,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:55:02,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:55:02,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:55:02,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:55:02,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:55:02,241 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:55:02,241 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:55:02,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:55:02,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:55:02,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:55:02,242 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan 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(__VERIFIER_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 -> fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 [2019-12-07 21:55:02,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:55:02,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:55:02,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:55:02,416 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:55:02,416 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:55:02,417 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2019-12-07 21:55:02,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/0dc3b342a/85c64563162449bfabf897835ae21c73/FLAGbcc5eb9c8 [2019-12-07 21:55:02,849 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:55:02,849 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2019-12-07 21:55:02,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/0dc3b342a/85c64563162449bfabf897835ae21c73/FLAGbcc5eb9c8 [2019-12-07 21:55:03,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/data/0dc3b342a/85c64563162449bfabf897835ae21c73 [2019-12-07 21:55:03,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:55:03,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:55:03,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:55:03,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:55:03,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:55:03,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03, skipping insertion in model container [2019-12-07 21:55:03,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:55:03,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:55:03,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:55:03,521 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 21:55:03,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:55:03,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:55:03,573 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:55:03,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:55:03,640 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:55:03,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03 WrapperNode [2019-12-07 21:55:03,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:55:03,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:55:03,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:55:03,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:55:03,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:55:03,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:55:03,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:55:03,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:55:03,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... [2019-12-07 21:55:03,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:55:03,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:55:03,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:55:03,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:55:03,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:55:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:55:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 21:55:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:55:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:55:04,342 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:55:04,343 INFO L287 CfgBuilder]: Removed 204 assume(true) statements. [2019-12-07 21:55:04,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:55:04 BoogieIcfgContainer [2019-12-07 21:55:04,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:55:04,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:55:04,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:55:04,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:55:04,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:55:03" (1/3) ... [2019-12-07 21:55:04,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c61747b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:55:04, skipping insertion in model container [2019-12-07 21:55:04,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:55:03" (2/3) ... [2019-12-07 21:55:04,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c61747b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:55:04, skipping insertion in model container [2019-12-07 21:55:04,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:55:04" (3/3) ... [2019-12-07 21:55:04,349 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2019-12-07 21:55:04,356 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:55:04,362 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 21:55:04,369 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 21:55:04,386 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:55:04,387 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:55:04,387 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:55:04,387 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:55:04,387 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:55:04,387 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:55:04,387 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:55:04,387 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:55:04,400 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-12-07 21:55:04,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 21:55:04,405 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:55:04,406 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:55:04,406 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:55:04,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:55:04,410 INFO L82 PathProgramCache]: Analyzing trace with hash -101624794, now seen corresponding path program 1 times [2019-12-07 21:55:04,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:55:04,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709438983] [2019-12-07 21:55:04,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 21:55:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:55:04,559 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:55:04,563 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:55:04,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:04,573 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:55:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:04,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709438983] [2019-12-07 21:55:04,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:55:04,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:55:04,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716279937] [2019-12-07 21:55:04,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:55:04,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:55:04,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:55:04,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:55:04,593 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2019-12-07 21:55:04,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:55:04,617 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2019-12-07 21:55:04,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:55:04,619 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 21:55:04,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:55:04,628 INFO L225 Difference]: With dead ends: 280 [2019-12-07 21:55:04,628 INFO L226 Difference]: Without dead ends: 139 [2019-12-07 21:55:04,630 INFO L630 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 [2019-12-07 21:55:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-12-07 21:55:04,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-12-07 21:55:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-12-07 21:55:04,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2019-12-07 21:55:04,664 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2019-12-07 21:55:04,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:55:04,664 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2019-12-07 21:55:04,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:55:04,664 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2019-12-07 21:55:04,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 21:55:04,665 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:55:04,665 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:55:04,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:55:04,866 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:55:04,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:55:04,867 INFO L82 PathProgramCache]: Analyzing trace with hash 524834626, now seen corresponding path program 1 times [2019-12-07 21:55:04,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:55:04,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734928815] [2019-12-07 21:55:04,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 21:55:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:55:04,976 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:55:04,978 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:55:04,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:04,991 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:55:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:05,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734928815] [2019-12-07 21:55:05,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:55:05,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:55:05,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330621156] [2019-12-07 21:55:05,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:55:05,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:55:05,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:55:05,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:55:05,004 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 4 states. [2019-12-07 21:55:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:55:05,019 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2019-12-07 21:55:05,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:55:05,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 21:55:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:55:05,020 INFO L225 Difference]: With dead ends: 139 [2019-12-07 21:55:05,020 INFO L226 Difference]: Without dead ends: 57 [2019-12-07 21:55:05,021 INFO L630 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 [2019-12-07 21:55:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-12-07 21:55:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-12-07 21:55:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 21:55:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2019-12-07 21:55:05,027 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2019-12-07 21:55:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:55:05,027 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2019-12-07 21:55:05,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:55:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-12-07 21:55:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 21:55:05,028 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:55:05,028 INFO L410 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] [2019-12-07 21:55:05,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:55:05,229 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:55:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:55:05,231 INFO L82 PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times [2019-12-07 21:55:05,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:55:05,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606041778] [2019-12-07 21:55:05,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 21:55:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:55:05,451 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:55:05,452 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:55:05,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:05,461 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:55:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:05,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606041778] [2019-12-07 21:55:05,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:55:05,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:55:05,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390824095] [2019-12-07 21:55:05,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:55:05,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:55:05,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:55:05,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:55:05,469 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 4 states. [2019-12-07 21:55:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:55:05,531 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2019-12-07 21:55:05,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:55:05,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 21:55:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:55:05,533 INFO L225 Difference]: With dead ends: 184 [2019-12-07 21:55:05,533 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 21:55:05,534 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:55:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 21:55:05,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2019-12-07 21:55:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 21:55:05,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2019-12-07 21:55:05,546 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2019-12-07 21:55:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:55:05,547 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2019-12-07 21:55:05,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:55:05,547 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2019-12-07 21:55:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 21:55:05,548 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:55:05,549 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:55:05,749 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:55:05,750 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:55:05,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:55:05,751 INFO L82 PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times [2019-12-07 21:55:05,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:55:05,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315457516] [2019-12-07 21:55:05,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 21:55:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:55:06,047 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:55:06,048 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:55:06,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:06,054 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:55:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:06,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315457516] [2019-12-07 21:55:06,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:55:06,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 21:55:06,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562788142] [2019-12-07 21:55:06,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:55:06,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:55:06,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:55:06,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:55:06,057 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2019-12-07 21:55:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:55:06,115 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2019-12-07 21:55:06,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:55:06,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 21:55:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:55:06,116 INFO L225 Difference]: With dead ends: 173 [2019-12-07 21:55:06,116 INFO L226 Difference]: Without dead ends: 101 [2019-12-07 21:55:06,117 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:55:06,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-07 21:55:06,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2019-12-07 21:55:06,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-12-07 21:55:06,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2019-12-07 21:55:06,126 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2019-12-07 21:55:06,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:55:06,126 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2019-12-07 21:55:06,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:55:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2019-12-07 21:55:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 21:55:06,127 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:55:06,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:55:06,327 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 21:55:06,329 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:55:06,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:55:06,330 INFO L82 PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times [2019-12-07 21:55:06,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:55:06,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16942321] [2019-12-07 21:55:06,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 21:55:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:55:06,464 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:55:06,465 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:55:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:06,480 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:55:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:55:06,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16942321] [2019-12-07 21:55:06,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:55:06,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 21:55:06,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127587154] [2019-12-07 21:55:06,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 21:55:06,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:55:06,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 21:55:06,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 21:55:06,506 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 8 states. [2019-12-07 21:55:06,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:55:06,844 INFO L93 Difference]: Finished difference Result 1099 states and 1606 transitions. [2019-12-07 21:55:06,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 21:55:06,844 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 21:55:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:55:06,849 INFO L225 Difference]: With dead ends: 1099 [2019-12-07 21:55:06,849 INFO L226 Difference]: Without dead ends: 1006 [2019-12-07 21:55:06,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 21:55:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2019-12-07 21:55:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 251. [2019-12-07 21:55:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-12-07 21:55:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2019-12-07 21:55:06,875 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 27 [2019-12-07 21:55:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:55:06,875 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2019-12-07 21:55:06,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 21:55:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2019-12-07 21:55:06,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 21:55:06,876 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:55:06,876 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:55:07,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 21:55:07,077 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:55:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:55:07,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times [2019-12-07 21:55:07,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:55:07,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749766437] [2019-12-07 21:55:07,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 21:55:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:55:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:55:08,741 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:55:08,741 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:55:08,942 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 21:55:09,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:55:09 BoogieIcfgContainer [2019-12-07 21:55:09,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:55:09,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:55:09,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:55:09,008 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:55:09,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:55:04" (3/4) ... [2019-12-07 21:55:09,010 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:55:09,077 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3e4ab102-3f72-49fc-86f5-75c964859399/bin/utaipan/witness.graphml [2019-12-07 21:55:09,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:55:09,078 INFO L168 Benchmark]: Toolchain (without parser) took 5844.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:55:09,078 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:55:09,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:55:09,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:55:09,079 INFO L168 Benchmark]: Boogie Preprocessor took 35.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:55:09,079 INFO L168 Benchmark]: RCFGBuilder took 616.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.4 MB in the end (delta: 89.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:55:09,080 INFO L168 Benchmark]: TraceAbstraction took 4663.62 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 93.8 MB). Free memory was 989.4 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:55:09,080 INFO L168 Benchmark]: Witness Printer took 68.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:55:09,082 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 406.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 616.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.4 MB in the end (delta: 89.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4663.62 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 93.8 MB). Free memory was 989.4 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 68.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L988] int retValue_acc ; [L989] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L830] COND TRUE waterLevel < 2 [L831] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L350] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L132] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L139] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L378] tmp___0 = getWaterLevel() [L380] COND TRUE tmp___0 == 2 [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] tmp___1 = isPumpRunning() [L384] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L769] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 578 SDtfs, 1582 SDslu, 1013 SDs, 0 SdLazy, 170 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=5, 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, 5 MinimizatonAttempts, 812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10826 SizeOfPredicates, 6 NumberOfNonLiveVariables, 927 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...