./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.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_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 ...................................................................................................................................... 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_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:21:36,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:21:36,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:21:36,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:21:36,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:21:36,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:21:36,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:21:36,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:21:36,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:21:36,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:21:36,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:21:36,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:21:36,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:21:36,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:21:36,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:21:36,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:21:36,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:21:36,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:21:36,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:21:36,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:21:36,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:21:36,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:21:36,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:21:36,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:21:36,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:21:36,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:21:36,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:21:36,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:21:36,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:21:36,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:21:36,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:21:36,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:21:36,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:21:36,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:21:36,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:21:36,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:21:36,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:21:36,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:21:36,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:21:36,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:21:36,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:21:36,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:21:36,188 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:21:36,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:21:36,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:21:36,190 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:21:36,190 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:21:36,190 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:21:36,190 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:21:36,190 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:21:36,191 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:21:36,191 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:21:36,191 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:21:36,191 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:21:36,191 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:21:36,192 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:21:36,192 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:21:36,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:21:36,193 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:21:36,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:21:36,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:21:36,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:21:36,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:21:36,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:21:36,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:21:36,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:21:36,194 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:21:36,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:21:36,194 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:21:36,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:21:36,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:21:36,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:21:36,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:21:36,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:21:36,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:21:36,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:21:36,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:21:36,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:21:36,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:21:36,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:21:36,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:21:36,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:21:36,197 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_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 -> c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 [2019-12-07 11:21:36,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:21:36,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:21:36,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:21:36,327 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:21:36,327 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:21:36,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2019-12-07 11:21:36,370 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/660d3e854/0862a7afa7f64f679d7e150c9700ea72/FLAGadbbb8a78 [2019-12-07 11:21:36,814 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:21:36,815 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2019-12-07 11:21:36,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/660d3e854/0862a7afa7f64f679d7e150c9700ea72/FLAGadbbb8a78 [2019-12-07 11:21:36,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/660d3e854/0862a7afa7f64f679d7e150c9700ea72 [2019-12-07 11:21:36,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:21:36,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:21:36,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:21:36,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:21:36,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:21:36,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:21:36" (1/1) ... [2019-12-07 11:21:36,841 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 11:21:36, skipping insertion in model container [2019-12-07 11:21:36,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:21:36" (1/1) ... [2019-12-07 11:21:36,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:21:36,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:21:37,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:21:37,083 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 11:21:37,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b27143e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:37, skipping insertion in model container [2019-12-07 11:21:37,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:21:37,084 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:21:37,085 INFO L168 Benchmark]: Toolchain (without parser) took 248.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:37,086 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:21:37,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:37,087 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 246.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 106]: 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 11:21:38,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:21:38,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:21:38,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:21:38,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:21:38,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:21:38,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:21:38,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:21:38,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:21:38,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:21:38,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:21:38,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:21:38,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:21:38,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:21:38,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:21:38,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:21:38,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:21:38,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:21:38,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:21:38,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:21:38,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:21:38,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:21:38,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:21:38,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:21:38,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:21:38,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:21:38,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:21:38,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:21:38,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:21:38,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:21:38,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:21:38,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:21:38,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:21:38,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:21:38,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:21:38,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:21:38,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:21:38,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:21:38,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:21:38,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:21:38,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:21:38,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:21:38,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:21:38,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:21:38,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:21:38,249 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:21:38,249 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:21:38,249 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:21:38,250 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:21:38,250 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:21:38,250 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:21:38,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:21:38,251 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:21:38,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:21:38,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:21:38,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:21:38,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:21:38,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:21:38,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:21:38,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:21:38,252 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:21:38,252 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:21:38,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:21:38,253 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:21:38,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:21:38,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:21:38,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:21:38,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:21:38,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:21:38,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:21:38,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:21:38,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:21:38,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:21:38,255 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:21:38,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:21:38,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:21:38,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:21:38,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:21:38,256 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_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 -> c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 [2019-12-07 11:21:38,420 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:21:38,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:21:38,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:21:38,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:21:38,434 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:21:38,434 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2019-12-07 11:21:38,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/f8be85dca/fcc064ac999b46afa23168cf8b7dd444/FLAG4b7abe893 [2019-12-07 11:21:38,835 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:21:38,835 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2019-12-07 11:21:38,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/f8be85dca/fcc064ac999b46afa23168cf8b7dd444/FLAG4b7abe893 [2019-12-07 11:21:38,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/data/f8be85dca/fcc064ac999b46afa23168cf8b7dd444 [2019-12-07 11:21:38,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:21:38,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:21:38,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:21:38,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:21:38,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:21:38,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:21:38" (1/1) ... [2019-12-07 11:21:38,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:38, skipping insertion in model container [2019-12-07 11:21:38,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:21:38" (1/1) ... [2019-12-07 11:21:38,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:21:38,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:21:39,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:21:39,123 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:21:39,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:21:39,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:21:39,171 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:21:39,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:21:39,231 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:21:39,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39 WrapperNode [2019-12-07 11:21:39,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:21:39,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:21:39,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:21:39,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:21:39,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:21:39,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:21:39,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:21:39,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:21:39,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... [2019-12-07 11:21:39,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:21:39,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:21:39,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:21:39,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:21:39,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:21:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 11:21:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:21:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:21:40,014 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:21:40,014 INFO L287 CfgBuilder]: Removed 276 assume(true) statements. [2019-12-07 11:21:40,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:21:40 BoogieIcfgContainer [2019-12-07 11:21:40,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:21:40,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:21:40,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:21:40,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:21:40,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:21:38" (1/3) ... [2019-12-07 11:21:40,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be096ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:21:40, skipping insertion in model container [2019-12-07 11:21:40,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:21:39" (2/3) ... [2019-12-07 11:21:40,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be096ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:21:40, skipping insertion in model container [2019-12-07 11:21:40,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:21:40" (3/3) ... [2019-12-07 11:21:40,020 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2019-12-07 11:21:40,028 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:21:40,033 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:21:40,041 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:21:40,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:21:40,060 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:21:40,060 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:21:40,060 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:21:40,060 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:21:40,060 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:21:40,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:21:40,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:21:40,075 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-12-07 11:21:40,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 11:21:40,079 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:40,080 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:21:40,080 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:40,085 INFO L82 PathProgramCache]: Analyzing trace with hash 2002794138, now seen corresponding path program 1 times [2019-12-07 11:21:40,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:40,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729559252] [2019-12-07 11:21:40,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:40,230 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:21:40,234 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:40,244 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 11:21:40,244 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:40,247 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 11:21:40,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729559252] [2019-12-07 11:21:40,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:40,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:21:40,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459515064] [2019-12-07 11:21:40,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:21:40,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:40,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:21:40,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:21:40,264 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-12-07 11:21:40,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:40,292 INFO L93 Difference]: Finished difference Result 372 states and 569 transitions. [2019-12-07 11:21:40,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:21:40,293 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 11:21:40,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:40,302 INFO L225 Difference]: With dead ends: 372 [2019-12-07 11:21:40,302 INFO L226 Difference]: Without dead ends: 185 [2019-12-07 11:21:40,305 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 11:21:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-12-07 11:21:40,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-12-07 11:21:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-12-07 11:21:40,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2019-12-07 11:21:40,341 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2019-12-07 11:21:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:40,342 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-12-07 11:21:40,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:21:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2019-12-07 11:21:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 11:21:40,343 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:40,343 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 11:21:40,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:21:40,545 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:40,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:40,546 INFO L82 PathProgramCache]: Analyzing trace with hash 956037241, now seen corresponding path program 1 times [2019-12-07 11:21:40,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:40,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876215143] [2019-12-07 11:21:40,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:40,748 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:21:40,749 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:40,764 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 11:21:40,765 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:40,774 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 11:21:40,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876215143] [2019-12-07 11:21:40,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:40,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:21:40,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87193478] [2019-12-07 11:21:40,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:21:40,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:40,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:21:40,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:21:40,776 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 4 states. [2019-12-07 11:21:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:40,790 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2019-12-07 11:21:40,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:21:40,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 11:21:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:40,792 INFO L225 Difference]: With dead ends: 185 [2019-12-07 11:21:40,792 INFO L226 Difference]: Without dead ends: 71 [2019-12-07 11:21:40,793 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 11:21:40,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-12-07 11:21:40,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-12-07 11:21:40,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-12-07 11:21:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2019-12-07 11:21:40,799 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2019-12-07 11:21:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:40,799 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2019-12-07 11:21:40,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:21:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2019-12-07 11:21:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 11:21:40,800 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:40,800 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 11:21:41,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:21:41,001 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:41,001 INFO L82 PathProgramCache]: Analyzing trace with hash 748559286, now seen corresponding path program 1 times [2019-12-07 11:21:41,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:41,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252190940] [2019-12-07 11:21:41,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:41,110 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:21:41,111 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:41,119 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 11:21:41,119 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:41,126 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 11:21:41,126 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252190940] [2019-12-07 11:21:41,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:41,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 11:21:41,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610338084] [2019-12-07 11:21:41,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:21:41,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:41,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:21:41,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:21:41,127 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 4 states. [2019-12-07 11:21:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:41,135 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2019-12-07 11:21:41,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:21:41,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 11:21:41,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:41,137 INFO L225 Difference]: With dead ends: 136 [2019-12-07 11:21:41,137 INFO L226 Difference]: Without dead ends: 71 [2019-12-07 11:21:41,137 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 11:21:41,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-12-07 11:21:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-12-07 11:21:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-12-07 11:21:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2019-12-07 11:21:41,143 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2019-12-07 11:21:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:41,143 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2019-12-07 11:21:41,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:21:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2019-12-07 11:21:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 11:21:41,144 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:41,145 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] [2019-12-07 11:21:41,345 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:21:41,346 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:41,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:41,346 INFO L82 PathProgramCache]: Analyzing trace with hash -682519882, now seen corresponding path program 1 times [2019-12-07 11:21:41,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:41,347 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741712258] [2019-12-07 11:21:41,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:41,512 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:21:41,514 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:41,520 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 11:21:41,520 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:41,522 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 11:21:41,522 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741712258] [2019-12-07 11:21:41,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:41,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:21:41,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435593239] [2019-12-07 11:21:41,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:21:41,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:41,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:21:41,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:21:41,524 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2019-12-07 11:21:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:41,593 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2019-12-07 11:21:41,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:21:41,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 11:21:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:41,594 INFO L225 Difference]: With dead ends: 145 [2019-12-07 11:21:41,595 INFO L226 Difference]: Without dead ends: 80 [2019-12-07 11:21:41,595 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 11:21:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-12-07 11:21:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-12-07 11:21:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 11:21:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2019-12-07 11:21:41,601 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2019-12-07 11:21:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:41,601 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2019-12-07 11:21:41,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:21:41,602 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2019-12-07 11:21:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 11:21:41,602 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:41,603 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 11:21:41,803 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:21:41,804 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:41,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:41,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1459548505, now seen corresponding path program 1 times [2019-12-07 11:21:41,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:41,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672217482] [2019-12-07 11:21:41,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:41,951 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:21:41,953 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:41,965 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 11:21:41,965 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:41,972 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 11:21:41,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672217482] [2019-12-07 11:21:41,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:41,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 11:21:41,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644231148] [2019-12-07 11:21:41,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:21:41,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:41,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:21:41,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:21:41,974 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand 5 states. [2019-12-07 11:21:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:42,035 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2019-12-07 11:21:42,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:21:42,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 11:21:42,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:42,036 INFO L225 Difference]: With dead ends: 204 [2019-12-07 11:21:42,036 INFO L226 Difference]: Without dead ends: 132 [2019-12-07 11:21:42,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 11:21:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-12-07 11:21:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2019-12-07 11:21:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-07 11:21:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2019-12-07 11:21:42,044 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2019-12-07 11:21:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:42,045 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2019-12-07 11:21:42,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:21:42,045 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2019-12-07 11:21:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 11:21:42,046 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:42,046 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 11:21:42,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:21:42,247 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:42,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:42,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1202962538, now seen corresponding path program 1 times [2019-12-07 11:21:42,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:42,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737013792] [2019-12-07 11:21:42,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:42,377 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:21:42,379 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:42,391 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 11:21:42,391 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:42,395 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 11:21:42,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737013792] [2019-12-07 11:21:42,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:42,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 11:21:42,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762741432] [2019-12-07 11:21:42,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:21:42,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:42,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:21:42,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:21:42,397 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 5 states. [2019-12-07 11:21:42,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:42,477 INFO L93 Difference]: Finished difference Result 431 states and 600 transitions. [2019-12-07 11:21:42,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:21:42,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 11:21:42,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:42,480 INFO L225 Difference]: With dead ends: 431 [2019-12-07 11:21:42,480 INFO L226 Difference]: Without dead ends: 350 [2019-12-07 11:21:42,480 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 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 11:21:42,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-07 11:21:42,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 162. [2019-12-07 11:21:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-12-07 11:21:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2019-12-07 11:21:42,498 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2019-12-07 11:21:42,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:42,498 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2019-12-07 11:21:42,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:21:42,498 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2019-12-07 11:21:42,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 11:21:42,499 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:42,499 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 11:21:42,699 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:21:42,700 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:42,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:42,700 INFO L82 PathProgramCache]: Analyzing trace with hash 552949620, now seen corresponding path program 1 times [2019-12-07 11:21:42,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:42,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209577988] [2019-12-07 11:21:42,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:42,796 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:21:42,798 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:42,810 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 11:21:42,811 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:42,814 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 11:21:42,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209577988] [2019-12-07 11:21:42,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:42,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 11:21:42,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427866794] [2019-12-07 11:21:42,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:21:42,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:42,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:21:42,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:21:42,816 INFO L87 Difference]: Start difference. First operand 162 states and 221 transitions. Second operand 5 states. [2019-12-07 11:21:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:42,959 INFO L93 Difference]: Finished difference Result 470 states and 642 transitions. [2019-12-07 11:21:42,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 11:21:42,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 11:21:42,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:42,962 INFO L225 Difference]: With dead ends: 470 [2019-12-07 11:21:42,963 INFO L226 Difference]: Without dead ends: 468 [2019-12-07 11:21:42,963 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 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 11:21:42,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-12-07 11:21:42,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2019-12-07 11:21:42,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-12-07 11:21:42,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2019-12-07 11:21:42,976 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 32 [2019-12-07 11:21:42,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:42,976 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2019-12-07 11:21:42,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:21:42,976 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2019-12-07 11:21:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 11:21:42,977 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:42,977 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 11:21:43,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 11:21:43,179 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:43,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:43,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1792378863, now seen corresponding path program 1 times [2019-12-07 11:21:43,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:43,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903499752] [2019-12-07 11:21:43,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:43,325 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:21:43,326 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:43,334 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 11:21:43,335 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:43,345 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 11:21:43,345 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903499752] [2019-12-07 11:21:43,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:43,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:21:43,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956549591] [2019-12-07 11:21:43,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:21:43,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:43,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:21:43,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:21:43,346 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand 6 states. [2019-12-07 11:21:43,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:43,401 INFO L93 Difference]: Finished difference Result 428 states and 574 transitions. [2019-12-07 11:21:43,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:21:43,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 11:21:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:43,403 INFO L225 Difference]: With dead ends: 428 [2019-12-07 11:21:43,403 INFO L226 Difference]: Without dead ends: 272 [2019-12-07 11:21:43,403 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 11:21:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-12-07 11:21:43,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 174. [2019-12-07 11:21:43,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-12-07 11:21:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2019-12-07 11:21:43,414 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 32 [2019-12-07 11:21:43,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:43,414 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2019-12-07 11:21:43,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:21:43,414 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2019-12-07 11:21:43,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 11:21:43,415 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:43,415 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 11:21:43,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 11:21:43,616 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:43,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:43,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2050544301, now seen corresponding path program 1 times [2019-12-07 11:21:43,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:43,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735220195] [2019-12-07 11:21:43,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:21:43,734 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:21:43,735 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:21:43,739 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 11:21:43,740 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:21:43,746 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 11:21:43,746 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735220195] [2019-12-07 11:21:43,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:21:43,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 11:21:43,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696624944] [2019-12-07 11:21:43,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:21:43,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:21:43,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:21:43,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:21:43,747 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand 4 states. [2019-12-07 11:21:43,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:21:43,801 INFO L93 Difference]: Finished difference Result 520 states and 696 transitions. [2019-12-07 11:21:43,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:21:43,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-07 11:21:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:21:43,803 INFO L225 Difference]: With dead ends: 520 [2019-12-07 11:21:43,803 INFO L226 Difference]: Without dead ends: 352 [2019-12-07 11:21:43,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 11:21:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2019-12-07 11:21:43,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 298. [2019-12-07 11:21:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-12-07 11:21:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 393 transitions. [2019-12-07 11:21:43,819 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 393 transitions. Word has length 32 [2019-12-07 11:21:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:21:43,819 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 393 transitions. [2019-12-07 11:21:43,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:21:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 393 transitions. [2019-12-07 11:21:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 11:21:43,820 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:21:43,820 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, 1] [2019-12-07 11:21:44,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 11:21:44,020 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:21:44,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:21:44,021 INFO L82 PathProgramCache]: Analyzing trace with hash 979497771, now seen corresponding path program 1 times [2019-12-07 11:21:44,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:21:44,021 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674828006] [2019-12-07 11:21:44,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/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 11:21:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:21:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:21:45,454 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:21:45,454 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:21:45,654 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 11:21:45,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:21:45 BoogieIcfgContainer [2019-12-07 11:21:45,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:21:45,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:21:45,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:21:45,746 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:21:45,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:21:40" (3/4) ... [2019-12-07 11:21:45,748 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:21:45,802 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eb2d9b67-c795-4365-9c8b-fac44d0a59c1/bin/utaipan/witness.graphml [2019-12-07 11:21:45,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:21:45,803 INFO L168 Benchmark]: Toolchain (without parser) took 6948.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 952.4 MB in the beginning and 935.9 MB in the end (delta: 16.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:45,803 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 11:21:45,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:45,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:45,804 INFO L168 Benchmark]: Boogie Preprocessor took 41.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:45,804 INFO L168 Benchmark]: RCFGBuilder took 688.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:45,805 INFO L168 Benchmark]: TraceAbstraction took 5729.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.0 GB in the beginning and 950.8 MB in the end (delta: 59.4 MB). Peak memory consumption was 131.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:45,805 INFO L168 Benchmark]: Witness Printer took 56.48 ms. Allocated memory is still 1.2 GB. Free memory was 950.8 MB in the beginning and 935.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:21:45,806 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 376.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 688.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5729.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.0 GB in the beginning and 950.8 MB in the end (delta: 59.4 MB). Peak memory consumption was 131.3 MB. Max. memory is 11.5 GB. * Witness Printer took 56.48 ms. Allocated memory is still 1.2 GB. Free memory was 950.8 MB in the beginning and 935.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int retValue_acc ; [L526] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] int splverifierCounter ; [L779] int tmp ; [L780] int tmp___0 ; [L781] int tmp___1 ; [L782] int tmp___2 ; [L785] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L787] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L789] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L795] tmp = __VERIFIER_nondet_int() [L797] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE waterLevel < 2 [L897] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L805] tmp___0 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] COND FALSE !(\read(methaneLevelCritical)) [L911] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L815] tmp___2 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L568] COND TRUE \read(systemActive) [L642] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) [L616] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND FALSE !(\read(pumpRunning)) [L590] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE ! pumpRunning [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; [L958] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L961] COND FALSE !(waterLevel < 2) [L965] retValue_acc = 0 [L966] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] tmp = isHighWaterLevel() [L597] COND TRUE \read(tmp) [L670] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] 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) [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] 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] [L73] __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, 189 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1163 SDtfs, 1326 SDslu, 1497 SDs, 0 SdLazy, 225 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 474 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 693 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 458 ConstructedInterpolants, 0 QuantifiedInterpolants, 24631 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1704 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...