./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.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_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 63231100df91d767f63e82b83b0d6c2eaec3a983 ...................................................................................................................................... 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_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 63231100df91d767f63e82b83b0d6c2eaec3a983 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:42:36,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:42:36,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:42:36,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:42:36,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:42:36,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:42:36,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:42:36,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:42:36,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:42:36,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:42:36,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:42:36,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:42:36,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:42:36,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:42:36,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:42:36,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:42:36,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:42:36,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:42:36,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:42:36,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:42:36,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:42:36,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:42:36,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:42:36,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:42:36,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:42:36,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:42:36,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:42:36,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:42:36,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:42:36,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:42:36,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:42:36,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:42:36,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:42:36,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:42:36,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:42:36,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:42:36,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:42:36,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:42:36,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:42:36,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:42:36,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:42:36,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:42:36,214 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:42:36,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:42:36,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:42:36,216 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:42:36,216 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:42:36,216 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:42:36,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:42:36,216 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:42:36,217 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:42:36,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:42:36,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:42:36,217 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:42:36,217 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:42:36,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:42:36,218 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:42:36,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:42:36,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:42:36,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:42:36,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:42:36,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:42:36,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:42:36,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:42:36,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:42:36,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:42:36,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:42:36,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:42:36,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:42:36,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:42:36,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:42:36,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:42:36,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:42:36,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:42:36,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:42:36,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:42:36,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:42:36,222 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:42:36,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:42:36,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:42:36,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:42:36,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:42:36,223 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_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 -> 63231100df91d767f63e82b83b0d6c2eaec3a983 [2019-12-07 21:42:36,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:42:36,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:42:36,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:42:36,339 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:42:36,340 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:42:36,340 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-12-07 21:42:36,378 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/a32652d9e/faf5f6ebc70b472ea3832108afa63d05/FLAG8300167b4 [2019-12-07 21:42:36,713 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:42:36,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-12-07 21:42:36,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/a32652d9e/faf5f6ebc70b472ea3832108afa63d05/FLAG8300167b4 [2019-12-07 21:42:36,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/a32652d9e/faf5f6ebc70b472ea3832108afa63d05 [2019-12-07 21:42:36,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:42:36,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:42:36,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:42:36,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:42:36,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:42:36,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:42:36" (1/1) ... [2019-12-07 21:42:36,739 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 09:42:36, skipping insertion in model container [2019-12-07 21:42:36,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:42:36" (1/1) ... [2019-12-07 21:42:36,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:42:36,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:42:36,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:42:36,988 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 21:42:36,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@125df182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:36, skipping insertion in model container [2019-12-07 21:42:36,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:42:36,989 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 21:42:36,990 INFO L168 Benchmark]: Toolchain (without parser) took 256.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:36,991 INFO L168 Benchmark]: CDTParser took 0.17 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 21:42:36,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:36,992 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 254.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -155.3 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: 628]: 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 21:42:38,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:42:38,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:42:38,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:42:38,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:42:38,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:42:38,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:42:38,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:42:38,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:42:38,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:42:38,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:42:38,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:42:38,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:42:38,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:42:38,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:42:38,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:42:38,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:42:38,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:42:38,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:42:38,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:42:38,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:42:38,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:42:38,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:42:38,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:42:38,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:42:38,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:42:38,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:42:38,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:42:38,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:42:38,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:42:38,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:42:38,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:42:38,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:42:38,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:42:38,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:42:38,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:42:38,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:42:38,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:42:38,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:42:38,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:42:38,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:42:38,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:42:38,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:42:38,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:42:38,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:42:38,223 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:42:38,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:42:38,223 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:42:38,223 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:42:38,223 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:42:38,223 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:42:38,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:42:38,224 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:42:38,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:42:38,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:42:38,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:42:38,225 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:42:38,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:42:38,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:42:38,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:42:38,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:42:38,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:42:38,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:42:38,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:42:38,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:42:38,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:42:38,227 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:42:38,227 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:42:38,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:42:38,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:42:38,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:42:38,227 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_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 -> 63231100df91d767f63e82b83b0d6c2eaec3a983 [2019-12-07 21:42:38,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:42:38,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:42:38,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:42:38,400 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:42:38,400 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:42:38,401 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-12-07 21:42:38,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/f7068efd8/8321dcf170b1405cb242e17c3cf31661/FLAG4dec70982 [2019-12-07 21:42:38,895 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:42:38,895 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-12-07 21:42:38,904 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/f7068efd8/8321dcf170b1405cb242e17c3cf31661/FLAG4dec70982 [2019-12-07 21:42:39,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/data/f7068efd8/8321dcf170b1405cb242e17c3cf31661 [2019-12-07 21:42:39,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:42:39,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:42:39,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:42:39,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:42:39,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:42:39,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,250 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 09:42:39, skipping insertion in model container [2019-12-07 21:42:39,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:42:39,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:42:39,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:42:39,519 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 21:42:39,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:42:39,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:42:39,570 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:42:39,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:42:39,633 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:42:39,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39 WrapperNode [2019-12-07 21:42:39,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:42:39,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:42:39,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:42:39,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:42:39,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:42:39,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:42:39,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:42:39,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:42:39,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... [2019-12-07 21:42:39,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:42:39,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:42:39,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:42:39,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:42:39,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 21:42:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:42:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 21:42:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:42:39,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:42:40,294 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:42:40,294 INFO L287 CfgBuilder]: Removed 158 assume(true) statements. [2019-12-07 21:42:40,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:42:40 BoogieIcfgContainer [2019-12-07 21:42:40,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:42:40,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:42:40,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:42:40,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:42:40,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:42:39" (1/3) ... [2019-12-07 21:42:40,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cd29a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:42:40, skipping insertion in model container [2019-12-07 21:42:40,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:42:39" (2/3) ... [2019-12-07 21:42:40,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cd29a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:42:40, skipping insertion in model container [2019-12-07 21:42:40,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:42:40" (3/3) ... [2019-12-07 21:42:40,300 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2019-12-07 21:42:40,307 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:42:40,313 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 21:42:40,320 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 21:42:40,337 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:42:40,337 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:42:40,337 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:42:40,338 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:42:40,338 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:42:40,338 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:42:40,338 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:42:40,338 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:42:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-12-07 21:42:40,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 21:42:40,355 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:40,355 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:42:40,356 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:40,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:40,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1800894747, now seen corresponding path program 1 times [2019-12-07 21:42:40,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:40,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689406505] [2019-12-07 21:42:40,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 21:42:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:40,519 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:42:40,523 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:40,533 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 21:42:40,533 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:40,537 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 21:42:40,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689406505] [2019-12-07 21:42:40,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:40,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:42:40,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110494] [2019-12-07 21:42:40,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:42:40,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:40,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:42:40,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:42:40,553 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-12-07 21:42:40,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:40,575 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-12-07 21:42:40,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:42:40,576 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 21:42:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:40,584 INFO L225 Difference]: With dead ends: 228 [2019-12-07 21:42:40,584 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 21:42:40,587 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 21:42:40,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 21:42:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-12-07 21:42:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-12-07 21:42:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-12-07 21:42:40,618 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2019-12-07 21:42:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:40,619 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-12-07 21:42:40,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:42:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-12-07 21:42:40,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 21:42:40,620 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:40,620 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:42:40,820 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:42:40,821 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:40,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1447315652, now seen corresponding path program 1 times [2019-12-07 21:42:40,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:40,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152920417] [2019-12-07 21:42:40,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 21:42:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:40,935 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:42:40,937 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:40,950 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 21:42:40,950 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:40,959 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 21:42:40,959 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152920417] [2019-12-07 21:42:40,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:40,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:42:40,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726605255] [2019-12-07 21:42:40,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:42:40,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:40,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:42:40,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:42:40,961 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 4 states. [2019-12-07 21:42:40,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:40,974 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2019-12-07 21:42:40,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:42:40,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 21:42:40,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:40,976 INFO L225 Difference]: With dead ends: 113 [2019-12-07 21:42:40,976 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 21:42:40,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 21:42:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 21:42:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 21:42:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 21:42:40,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-12-07 21:42:40,983 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-12-07 21:42:40,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:40,983 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-12-07 21:42:40,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:42:40,983 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-12-07 21:42:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 21:42:40,984 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:40,984 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] [2019-12-07 21:42:41,185 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:42:41,185 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:41,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:41,186 INFO L82 PathProgramCache]: Analyzing trace with hash -230586389, now seen corresponding path program 1 times [2019-12-07 21:42:41,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:41,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165032281] [2019-12-07 21:42:41,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 21:42:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:41,289 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:42:41,290 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:41,298 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 21:42:41,298 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:41,304 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 21:42:41,304 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165032281] [2019-12-07 21:42:41,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:41,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:42:41,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534199252] [2019-12-07 21:42:41,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:42:41,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:41,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:42:41,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:42:41,306 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2019-12-07 21:42:41,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:41,342 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2019-12-07 21:42:41,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:42:41,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 21:42:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:41,344 INFO L225 Difference]: With dead ends: 88 [2019-12-07 21:42:41,344 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 21:42:41,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 21:42:41,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 21:42:41,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 21:42:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 21:42:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-12-07 21:42:41,351 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2019-12-07 21:42:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:41,352 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-12-07 21:42:41,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:42:41,352 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-12-07 21:42:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 21:42:41,353 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:41,353 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 21:42:41,554 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:42:41,554 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:41,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:41,555 INFO L82 PathProgramCache]: Analyzing trace with hash -108421843, now seen corresponding path program 1 times [2019-12-07 21:42:41,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:41,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775254844] [2019-12-07 21:42:41,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 21:42:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:41,654 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:42:41,655 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:41,661 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 21:42:41,661 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:41,663 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 21:42:41,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775254844] [2019-12-07 21:42:41,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:41,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 21:42:41,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094692780] [2019-12-07 21:42:41,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:42:41,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:41,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:42:41,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:42:41,665 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2019-12-07 21:42:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:41,718 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2019-12-07 21:42:41,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:42:41,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 21:42:41,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:41,719 INFO L225 Difference]: With dead ends: 109 [2019-12-07 21:42:41,719 INFO L226 Difference]: Without dead ends: 68 [2019-12-07 21:42:41,720 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 21:42:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-12-07 21:42:41,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2019-12-07 21:42:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 21:42:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2019-12-07 21:42:41,728 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2019-12-07 21:42:41,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:41,729 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2019-12-07 21:42:41,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:42:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2019-12-07 21:42:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 21:42:41,730 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:41,730 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, 1, 1] [2019-12-07 21:42:41,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 21:42:41,932 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:41,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1619186466, now seen corresponding path program 1 times [2019-12-07 21:42:41,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:41,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284387376] [2019-12-07 21:42:41,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 21:42:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:42,089 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:42:42,090 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:42,101 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 21:42:42,101 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:42,106 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 21:42:42,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284387376] [2019-12-07 21:42:42,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:42,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 21:42:42,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692276572] [2019-12-07 21:42:42,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:42:42,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:42,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:42:42,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:42:42,107 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2019-12-07 21:42:42,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:42,152 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2019-12-07 21:42:42,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 21:42:42,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 21:42:42,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:42,153 INFO L225 Difference]: With dead ends: 175 [2019-12-07 21:42:42,153 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 21:42:42,153 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 21:42:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 21:42:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2019-12-07 21:42:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 21:42:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2019-12-07 21:42:42,159 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2019-12-07 21:42:42,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:42,159 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2019-12-07 21:42:42,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:42:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2019-12-07 21:42:42,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 21:42:42,160 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:42,160 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, 1, 1] [2019-12-07 21:42:42,361 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 21:42:42,361 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:42,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:42,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1043324577, now seen corresponding path program 1 times [2019-12-07 21:42:42,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:42,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871798722] [2019-12-07 21:42:42,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/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 21:42:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:42,461 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:42:42,462 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:42,476 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 21:42:42,476 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:42,480 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 21:42:42,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871798722] [2019-12-07 21:42:42,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:42,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 21:42:42,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444876636] [2019-12-07 21:42:42,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:42:42,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:42,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:42:42,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:42:42,482 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 5 states. [2019-12-07 21:42:42,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:42,542 INFO L93 Difference]: Finished difference Result 382 states and 538 transitions. [2019-12-07 21:42:42,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 21:42:42,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 21:42:42,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:42,544 INFO L225 Difference]: With dead ends: 382 [2019-12-07 21:42:42,545 INFO L226 Difference]: Without dead ends: 316 [2019-12-07 21:42:42,547 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 21:42:42,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-12-07 21:42:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 132. [2019-12-07 21:42:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-12-07 21:42:42,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 181 transitions. [2019-12-07 21:42:42,560 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 181 transitions. Word has length 30 [2019-12-07 21:42:42,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:42,560 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 181 transitions. [2019-12-07 21:42:42,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:42:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 181 transitions. [2019-12-07 21:42:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 21:42:42,561 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:42,561 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, 1, 1, 1] [2019-12-07 21:42:42,762 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 21:42:42,763 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:42,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:42,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1715093079, now seen corresponding path program 1 times [2019-12-07 21:42:42,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:42,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822684933] [2019-12-07 21:42:42,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 21:42:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:42,903 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:42:42,905 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:42,916 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 21:42:42,916 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:42,918 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 21:42:42,919 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822684933] [2019-12-07 21:42:42,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:42,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 21:42:42,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418426802] [2019-12-07 21:42:42,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:42:42,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:42,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:42:42,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:42:42,920 INFO L87 Difference]: Start difference. First operand 132 states and 181 transitions. Second operand 5 states. [2019-12-07 21:42:43,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:43,042 INFO L93 Difference]: Finished difference Result 378 states and 520 transitions. [2019-12-07 21:42:43,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 21:42:43,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 21:42:43,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:43,044 INFO L225 Difference]: With dead ends: 378 [2019-12-07 21:42:43,044 INFO L226 Difference]: Without dead ends: 376 [2019-12-07 21:42:43,044 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 21:42:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-12-07 21:42:43,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 132. [2019-12-07 21:42:43,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-12-07 21:42:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 180 transitions. [2019-12-07 21:42:43,055 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 180 transitions. Word has length 31 [2019-12-07 21:42:43,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:43,055 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 180 transitions. [2019-12-07 21:42:43,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:42:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 180 transitions. [2019-12-07 21:42:43,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 21:42:43,056 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:43,056 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, 1, 1, 1] [2019-12-07 21:42:43,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 21:42:43,257 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:43,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:43,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1340444974, now seen corresponding path program 1 times [2019-12-07 21:42:43,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:43,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9059411] [2019-12-07 21:42:43,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 21:42:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:43,425 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 21:42:43,426 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:43,435 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 21:42:43,435 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:43,443 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 21:42:43,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9059411] [2019-12-07 21:42:43,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:43,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 21:42:43,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936425907] [2019-12-07 21:42:43,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 21:42:43,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:43,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 21:42:43,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 21:42:43,444 INFO L87 Difference]: Start difference. First operand 132 states and 180 transitions. Second operand 6 states. [2019-12-07 21:42:43,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:43,491 INFO L93 Difference]: Finished difference Result 354 states and 478 transitions. [2019-12-07 21:42:43,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 21:42:43,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 21:42:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:43,492 INFO L225 Difference]: With dead ends: 354 [2019-12-07 21:42:43,493 INFO L226 Difference]: Without dead ends: 228 [2019-12-07 21:42:43,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 21:42:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-12-07 21:42:43,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 140. [2019-12-07 21:42:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 21:42:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 188 transitions. [2019-12-07 21:42:43,504 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 188 transitions. Word has length 31 [2019-12-07 21:42:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:43,504 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 188 transitions. [2019-12-07 21:42:43,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 21:42:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 188 transitions. [2019-12-07 21:42:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 21:42:43,505 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:43,505 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, 1, 1, 1] [2019-12-07 21:42:43,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 21:42:43,706 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:43,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:43,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1082279536, now seen corresponding path program 1 times [2019-12-07 21:42:43,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:43,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306301670] [2019-12-07 21:42:43,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 21:42:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:42:43,859 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:42:43,861 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:42:43,866 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 21:42:43,866 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:42:43,873 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 21:42:43,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306301670] [2019-12-07 21:42:43,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:42:43,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 21:42:43,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623471033] [2019-12-07 21:42:43,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:42:43,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:42:43,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:42:43,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:42:43,875 INFO L87 Difference]: Start difference. First operand 140 states and 188 transitions. Second operand 4 states. [2019-12-07 21:42:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:42:43,921 INFO L93 Difference]: Finished difference Result 430 states and 580 transitions. [2019-12-07 21:42:43,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:42:43,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-07 21:42:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:42:43,922 INFO L225 Difference]: With dead ends: 430 [2019-12-07 21:42:43,923 INFO L226 Difference]: Without dead ends: 296 [2019-12-07 21:42:43,923 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 21:42:43,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-12-07 21:42:43,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 244. [2019-12-07 21:42:43,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2019-12-07 21:42:43,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 325 transitions. [2019-12-07 21:42:43,940 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 325 transitions. Word has length 31 [2019-12-07 21:42:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:42:43,940 INFO L462 AbstractCegarLoop]: Abstraction has 244 states and 325 transitions. [2019-12-07 21:42:43,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:42:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 325 transitions. [2019-12-07 21:42:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 21:42:43,941 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:42:43,941 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, 1, 1, 1, 1] [2019-12-07 21:42:44,141 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 21:42:44,141 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:42:44,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:42:44,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1099927890, now seen corresponding path program 1 times [2019-12-07 21:42:44,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:42:44,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644243520] [2019-12-07 21:42:44,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 21:42:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:42:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:42:45,814 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:42:45,814 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:42:46,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 21:42:46,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:42:46 BoogieIcfgContainer [2019-12-07 21:42:46,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:42:46,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:42:46,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:42:46,123 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:42:46,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:42:40" (3/4) ... [2019-12-07 21:42:46,126 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:42:46,184 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8c530aea-a3f8-4d7b-b386-ea5dc2b088ce/bin/utaipan/witness.graphml [2019-12-07 21:42:46,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:42:46,186 INFO L168 Benchmark]: Toolchain (without parser) took 6951.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 947.0 MB in the beginning and 974.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 183.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:46,186 INFO L168 Benchmark]: CDTParser took 0.17 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 21:42:46,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:46,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.22 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:46,187 INFO L168 Benchmark]: Boogie Preprocessor took 32.65 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 21:42:46,187 INFO L168 Benchmark]: RCFGBuilder took 581.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:46,187 INFO L168 Benchmark]: TraceAbstraction took 5827.14 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.2 MB). Free memory was 1.0 GB in the beginning and 990.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:46,187 INFO L168 Benchmark]: Witness Printer took 61.44 ms. Allocated memory is still 1.2 GB. Free memory was 990.5 MB in the beginning and 974.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:42:46,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 396.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.22 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.65 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 581.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5827.14 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.2 MB). Free memory was 1.0 GB in the beginning and 990.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. * Witness Printer took 61.44 ms. Allocated memory is still 1.2 GB. Free memory was 990.5 MB in the beginning and 974.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L258] int retValue_acc ; [L259] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L327] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L329] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L335] tmp = __VERIFIER_nondet_int() [L337] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE waterLevel < 2 [L95] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND TRUE \read(tmp___2) [L595] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L402] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L409] COND TRUE \read(systemActive) [L457] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] COND FALSE !(\read(pumpRunning)) [L431] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND TRUE ! pumpRunning [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; [L156] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) [L485] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L388] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 1175 SDslu, 1178 SDs, 0 SdLazy, 154 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=9, 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, 9 MinimizatonAttempts, 613 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 21188 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1705 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...