./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 9033da3093a23b8640383fad25d5fd5dfea2cc28 ...................................................................................................................................... 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_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 9033da3093a23b8640383fad25d5fd5dfea2cc28 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:24:55,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:24:55,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:24:55,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:24:55,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:24:55,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:24:55,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:24:55,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:24:55,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:24:55,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:24:55,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:24:55,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:24:55,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:24:55,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:24:55,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:24:55,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:24:55,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:24:55,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:24:55,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:24:55,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:24:55,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:24:55,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:24:55,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:24:55,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:24:55,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:24:55,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:24:55,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:24:55,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:24:55,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:24:55,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:24:55,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:24:55,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:24:55,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:24:55,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:24:55,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:24:55,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:24:55,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:24:55,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:24:55,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:24:55,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:24:55,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:24:55,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:24:55,279 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:24:55,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:24:55,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:24:55,280 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:24:55,280 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:24:55,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:24:55,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:24:55,281 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:24:55,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:24:55,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:24:55,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:24:55,283 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:24:55,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:24:55,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:24:55,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:24:55,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:24:55,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:55,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:24:55,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:24:55,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:24:55,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:24:55,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:24:55,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:24:55,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:24:55,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:24:55,284 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_446b787c-810b-4f10-abdf-32535eede425/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 -> 9033da3093a23b8640383fad25d5fd5dfea2cc28 [2019-12-07 13:24:55,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:24:55,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:24:55,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:24:55,409 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:24:55,409 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:24:55,410 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-12-07 13:24:55,451 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/3670d0386/3551db2b7ed14528a0df799e6ca57320/FLAG57efedcf5 [2019-12-07 13:24:55,786 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:24:55,787 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-12-07 13:24:55,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/3670d0386/3551db2b7ed14528a0df799e6ca57320/FLAG57efedcf5 [2019-12-07 13:24:55,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/3670d0386/3551db2b7ed14528a0df799e6ca57320 [2019-12-07 13:24:55,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:24:55,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:24:55,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:55,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:24:55,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:24:55,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:55" (1/1) ... [2019-12-07 13:24:55,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:55, skipping insertion in model container [2019-12-07 13:24:55,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:55" (1/1) ... [2019-12-07 13:24:55,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:24:55,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:24:56,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:56,065 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 13:24:56,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@242e9bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:56, skipping insertion in model container [2019-12-07 13:24:56,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:56,066 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 13:24:56,068 INFO L168 Benchmark]: Toolchain (without parser) took 260.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -140.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:56,069 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:56,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:56,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 635]: 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 13:24:57,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:24:57,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:24:57,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:24:57,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:24:57,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:24:57,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:24:57,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:24:57,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:24:57,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:24:57,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:24:57,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:24:57,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:24:57,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:24:57,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:24:57,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:24:57,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:24:57,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:24:57,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:24:57,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:24:57,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:24:57,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:24:57,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:24:57,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:24:57,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:24:57,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:24:57,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:24:57,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:24:57,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:24:57,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:24:57,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:24:57,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:24:57,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:24:57,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:24:57,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:24:57,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:24:57,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:24:57,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:24:57,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:24:57,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:24:57,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:24:57,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:24:57,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:24:57,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:24:57,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:24:57,265 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:24:57,265 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:24:57,265 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:24:57,265 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:24:57,266 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:24:57,266 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:24:57,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:24:57,266 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:24:57,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:24:57,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:24:57,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:24:57,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:24:57,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:24:57,267 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:24:57,267 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:24:57,267 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:24:57,268 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:24:57,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:24:57,268 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:24:57,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:24:57,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:24:57,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:24:57,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:24:57,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:24:57,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:57,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:24:57,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:24:57,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:24:57,269 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:24:57,269 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:24:57,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:24:57,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:24:57,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:24:57,270 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_446b787c-810b-4f10-abdf-32535eede425/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 -> 9033da3093a23b8640383fad25d5fd5dfea2cc28 [2019-12-07 13:24:57,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:24:57,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:24:57,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:24:57,447 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:24:57,447 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:24:57,448 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-12-07 13:24:57,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/41c975f14/c83b07e867f04a608a18afea17171f51/FLAG99cad0d09 [2019-12-07 13:24:57,909 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:24:57,909 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-12-07 13:24:57,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/41c975f14/c83b07e867f04a608a18afea17171f51/FLAG99cad0d09 [2019-12-07 13:24:58,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/data/41c975f14/c83b07e867f04a608a18afea17171f51 [2019-12-07 13:24:58,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:24:58,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:24:58,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:58,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:24:58,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:24:58,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e232920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58, skipping insertion in model container [2019-12-07 13:24:58,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:24:58,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:24:58,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:58,585 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 13:24:58,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:24:58,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:58,644 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:24:58,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:58,704 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:24:58,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58 WrapperNode [2019-12-07 13:24:58,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:58,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:24:58,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:24:58,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:24:58,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:24:58,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:24:58,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:24:58,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:24:58,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... [2019-12-07 13:24:58,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:24:58,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:24:58,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:24:58,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:24:58,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 13:24:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:24:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 13:24:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:24:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:24:59,420 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:24:59,420 INFO L287 CfgBuilder]: Removed 166 assume(true) statements. [2019-12-07 13:24:59,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:59 BoogieIcfgContainer [2019-12-07 13:24:59,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:24:59,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:24:59,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:24:59,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:24:59,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:24:58" (1/3) ... [2019-12-07 13:24:59,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e441b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:59, skipping insertion in model container [2019-12-07 13:24:59,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:58" (2/3) ... [2019-12-07 13:24:59,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e441b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:59, skipping insertion in model container [2019-12-07 13:24:59,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:59" (3/3) ... [2019-12-07 13:24:59,429 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2019-12-07 13:24:59,438 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:24:59,445 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 13:24:59,453 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 13:24:59,470 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:24:59,470 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:24:59,470 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:24:59,470 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:24:59,470 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:24:59,470 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:24:59,470 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:24:59,471 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:24:59,482 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-12-07 13:24:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 13:24:59,487 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:59,487 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:59,488 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:59,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:59,491 INFO L82 PathProgramCache]: Analyzing trace with hash 335687254, now seen corresponding path program 1 times [2019-12-07 13:24:59,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:24:59,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555341483] [2019-12-07 13:24:59,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 13:24:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:59,634 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:24:59,638 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:59,649 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 13:24:59,649 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:24:59,654 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 13:24:59,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555341483] [2019-12-07 13:24:59,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:59,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:24:59,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728694923] [2019-12-07 13:24:59,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:24:59,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:24:59,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:24:59,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:24:59,670 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2019-12-07 13:24:59,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:59,696 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2019-12-07 13:24:59,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:24:59,698 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 13:24:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:59,707 INFO L225 Difference]: With dead ends: 244 [2019-12-07 13:24:59,707 INFO L226 Difference]: Without dead ends: 121 [2019-12-07 13:24:59,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:24:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-12-07 13:24:59,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-12-07 13:24:59,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-12-07 13:24:59,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2019-12-07 13:24:59,744 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2019-12-07 13:24:59,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:59,745 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2019-12-07 13:24:59,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:24:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2019-12-07 13:24:59,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 13:24:59,746 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:59,746 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:59,947 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:24:59,948 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:59,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:59,949 INFO L82 PathProgramCache]: Analyzing trace with hash -575343499, now seen corresponding path program 1 times [2019-12-07 13:24:59,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:24:59,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359775634] [2019-12-07 13:24:59,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 13:25:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:25:00,110 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:25:00,112 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:25:00,127 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 13:25:00,127 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:25:00,136 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 13:25:00,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359775634] [2019-12-07 13:25:00,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:25:00,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:25:00,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685471271] [2019-12-07 13:25:00,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:25:00,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:25:00,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:25:00,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:25:00,139 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 4 states. [2019-12-07 13:25:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:25:00,152 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2019-12-07 13:25:00,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:25:00,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 13:25:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:25:00,154 INFO L225 Difference]: With dead ends: 121 [2019-12-07 13:25:00,154 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 13:25:00,155 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:25:00,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 13:25:00,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-12-07 13:25:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-12-07 13:25:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2019-12-07 13:25:00,160 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2019-12-07 13:25:00,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:25:00,160 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2019-12-07 13:25:00,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:25:00,161 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2019-12-07 13:25:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 13:25:00,162 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:25:00,162 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:25:00,362 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:25:00,363 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:25:00,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:25:00,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2019-12-07 13:25:00,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:25:00,365 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032045095] [2019-12-07 13:25:00,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 13:25:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:25:00,489 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:25:00,490 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:25:00,499 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 13:25:00,499 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:25:00,507 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 13:25:00,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032045095] [2019-12-07 13:25:00,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:25:00,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 13:25:00,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300795224] [2019-12-07 13:25:00,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:25:00,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:25:00,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:25:00,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:25:00,509 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 4 states. [2019-12-07 13:25:00,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:25:00,526 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2019-12-07 13:25:00,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:25:00,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 13:25:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:25:00,527 INFO L225 Difference]: With dead ends: 166 [2019-12-07 13:25:00,527 INFO L226 Difference]: Without dead ends: 121 [2019-12-07 13:25:00,528 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:25:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-12-07 13:25:00,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2019-12-07 13:25:00,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 13:25:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2019-12-07 13:25:00,537 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2019-12-07 13:25:00,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:25:00,538 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2019-12-07 13:25:00,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:25:00,538 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2019-12-07 13:25:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 13:25:00,539 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:25:00,539 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:25:00,739 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:25:00,740 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:25:00,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:25:00,741 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2019-12-07 13:25:00,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:25:00,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129673685] [2019-12-07 13:25:00,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 13:25:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:25:00,869 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:25:00,870 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:25:00,876 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 13:25:00,876 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:25:00,878 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 13:25:00,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129673685] [2019-12-07 13:25:00,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:25:00,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:25:00,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545796496] [2019-12-07 13:25:00,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:25:00,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:25:00,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:25:00,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:25:00,880 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2019-12-07 13:25:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:25:00,938 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2019-12-07 13:25:00,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:25:00,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 13:25:00,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:25:00,940 INFO L225 Difference]: With dead ends: 161 [2019-12-07 13:25:00,940 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 13:25:00,941 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:25:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 13:25:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-12-07 13:25:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-12-07 13:25:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2019-12-07 13:25:00,949 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2019-12-07 13:25:00,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:25:00,949 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2019-12-07 13:25:00,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:25:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2019-12-07 13:25:00,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 13:25:00,950 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:25:00,950 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:25:01,150 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:25:01,151 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:25:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:25:01,151 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2019-12-07 13:25:01,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:25:01,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346622546] [2019-12-07 13:25:01,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 13:25:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:25:01,249 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:25:01,251 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:25:01,264 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 13:25:01,264 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:25:01,286 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 13:25:01,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346622546] [2019-12-07 13:25:01,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:25:01,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 13:25:01,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589418077] [2019-12-07 13:25:01,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:25:01,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:25:01,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:25:01,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:25:01,288 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 8 states. [2019-12-07 13:25:01,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:25:01,628 INFO L93 Difference]: Finished difference Result 1012 states and 1490 transitions. [2019-12-07 13:25:01,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 13:25:01,629 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 13:25:01,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:25:01,634 INFO L225 Difference]: With dead ends: 1012 [2019-12-07 13:25:01,634 INFO L226 Difference]: Without dead ends: 925 [2019-12-07 13:25:01,636 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 13:25:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2019-12-07 13:25:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 236. [2019-12-07 13:25:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-07 13:25:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 333 transitions. [2019-12-07 13:25:01,669 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 333 transitions. Word has length 27 [2019-12-07 13:25:01,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:25:01,669 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 333 transitions. [2019-12-07 13:25:01,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:25:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 333 transitions. [2019-12-07 13:25:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 13:25:01,671 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:25:01,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:25:01,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 13:25:01,872 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:25:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:25:01,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2019-12-07 13:25:01,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:25:01,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934411704] [2019-12-07 13:25:01,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/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 13:25:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:25:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:25:03,251 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 13:25:03,251 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:25:03,452 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 13:25:03,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:25:03 BoogieIcfgContainer [2019-12-07 13:25:03,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:25:03,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:25:03,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:25:03,530 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:25:03,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:59" (3/4) ... [2019-12-07 13:25:03,532 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:25:03,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_446b787c-810b-4f10-abdf-32535eede425/bin/utaipan/witness.graphml [2019-12-07 13:25:03,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:25:03,587 INFO L168 Benchmark]: Toolchain (without parser) took 5306.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:25:03,588 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 13:25:03,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:25:03,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:25:03,589 INFO L168 Benchmark]: Boogie Preprocessor took 32.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:25:03,589 INFO L168 Benchmark]: RCFGBuilder took 640.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:25:03,589 INFO L168 Benchmark]: TraceAbstraction took 4106.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -117.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:25:03,589 INFO L168 Benchmark]: Witness Printer took 56.07 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:25:03,591 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 422.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 640.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4106.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -117.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 56.07 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int retValue_acc ; [L550] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L233] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L240] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L977] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 514 SDtfs, 1209 SDslu, 1028 SDs, 0 SdLazy, 194 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 740 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 12919 SizeOfPredicates, 6 NumberOfNonLiveVariables, 925 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...