./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 35186e76d3512165346b803182d73298e94993df ...................................................................................................................................... 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_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 35186e76d3512165346b803182d73298e94993df .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:58:07,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:58:07,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:58:07,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:58:07,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:58:07,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:58:07,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:58:07,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:58:07,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:58:07,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:58:07,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:58:07,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:58:07,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:58:07,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:58:07,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:58:07,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:58:07,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:58:07,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:58:07,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:58:07,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:58:07,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:58:07,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:58:07,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:58:07,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:58:07,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:58:07,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:58:07,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:58:07,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:58:07,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:58:07,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:58:07,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:58:07,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:58:07,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:58:07,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:58:07,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:58:07,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:58:07,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:58:07,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:58:07,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:58:07,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:58:07,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:58:07,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:58:07,326 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:58:07,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:58:07,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:58:07,327 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:58:07,327 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:58:07,327 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:58:07,328 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:58:07,328 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:58:07,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:58:07,328 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:58:07,328 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:58:07,328 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:58:07,328 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:58:07,328 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:58:07,329 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:58:07,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:58:07,329 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:58:07,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:58:07,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:58:07,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:58:07,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:58:07,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:58:07,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:58:07,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:58:07,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:58:07,332 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_493dea84-cab9-4e4c-818e-fe05361a6018/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 -> 35186e76d3512165346b803182d73298e94993df [2019-12-07 12:58:07,430 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:58:07,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:58:07,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:58:07,443 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:58:07,444 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:58:07,444 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-12-07 12:58:07,490 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/a7bc7ac3a/b4b3e7920ef84f5090cb01d0ac0b98eb/FLAGd8da6627e [2019-12-07 12:58:07,847 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:58:07,848 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-12-07 12:58:07,855 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/a7bc7ac3a/b4b3e7920ef84f5090cb01d0ac0b98eb/FLAGd8da6627e [2019-12-07 12:58:07,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/a7bc7ac3a/b4b3e7920ef84f5090cb01d0ac0b98eb [2019-12-07 12:58:07,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:58:07,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:58:07,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:58:07,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:58:07,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:58:07,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:58:07" (1/1) ... [2019-12-07 12:58:07,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:07, skipping insertion in model container [2019-12-07 12:58:07,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:58:07" (1/1) ... [2019-12-07 12:58:07,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:58:07,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:58:08,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:58:08,135 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 12:58:08,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c863125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:08, skipping insertion in model container [2019-12-07 12:58:08,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:58:08,136 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 12:58:08,138 INFO L168 Benchmark]: Toolchain (without parser) took 270.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:58:08,138 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:58:08,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 932.9 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:58:08,140 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 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 932.9 MB in the beginning and 1.1 GB in the end (delta: -156.0 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: 351]: 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 12:58:09,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:58:09,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:58:09,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:58:09,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:58:09,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:58:09,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:58:09,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:58:09,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:58:09,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:58:09,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:58:09,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:58:09,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:58:09,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:58:09,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:58:09,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:58:09,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:58:09,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:58:09,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:58:09,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:58:09,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:58:09,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:58:09,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:58:09,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:58:09,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:58:09,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:58:09,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:58:09,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:58:09,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:58:09,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:58:09,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:58:09,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:58:09,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:58:09,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:58:09,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:58:09,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:58:09,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:58:09,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:58:09,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:58:09,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:58:09,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:58:09,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:58:09,316 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:58:09,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:58:09,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:58:09,317 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:58:09,317 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:58:09,317 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:58:09,317 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:58:09,317 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:58:09,318 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:58:09,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:58:09,318 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:58:09,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:58:09,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:58:09,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:58:09,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:58:09,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:58:09,319 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:58:09,319 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:58:09,319 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:58:09,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:58:09,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:58:09,320 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:58:09,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:58:09,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:58:09,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:58:09,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:58:09,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:58:09,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:58:09,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:58:09,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:58:09,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:58:09,321 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:58:09,321 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:58:09,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:58:09,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:58:09,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:58:09,322 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_493dea84-cab9-4e4c-818e-fe05361a6018/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 -> 35186e76d3512165346b803182d73298e94993df [2019-12-07 12:58:09,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:58:09,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:58:09,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:58:09,513 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:58:09,513 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:58:09,513 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-12-07 12:58:09,555 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/045e04e68/87b5ce5f400e4c8ea8f40956befe1f7f/FLAGf2598fde8 [2019-12-07 12:58:10,004 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:58:10,004 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-12-07 12:58:10,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/045e04e68/87b5ce5f400e4c8ea8f40956befe1f7f/FLAGf2598fde8 [2019-12-07 12:58:10,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/data/045e04e68/87b5ce5f400e4c8ea8f40956befe1f7f [2019-12-07 12:58:10,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:58:10,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:58:10,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:58:10,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:58:10,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:58:10,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,355 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 12:58:10, skipping insertion in model container [2019-12-07 12:58:10,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:58:10,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:58:10,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:58:10,637 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:58:10,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:58:10,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:58:10,685 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:58:10,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:58:10,745 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:58:10,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10 WrapperNode [2019-12-07 12:58:10,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:58:10,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:58:10,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:58:10,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:58:10,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:58:10,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:58:10,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:58:10,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:58:10,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... [2019-12-07 12:58:10,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:58:10,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:58:10,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:58:10,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:58:10,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 12:58:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:58:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 12:58:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:58:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:58:11,359 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:58:11,359 INFO L287 CfgBuilder]: Removed 126 assume(true) statements. [2019-12-07 12:58:11,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:58:11 BoogieIcfgContainer [2019-12-07 12:58:11,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:58:11,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:58:11,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:58:11,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:58:11,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:58:10" (1/3) ... [2019-12-07 12:58:11,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dfba88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:58:11, skipping insertion in model container [2019-12-07 12:58:11,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:58:10" (2/3) ... [2019-12-07 12:58:11,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dfba88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:58:11, skipping insertion in model container [2019-12-07 12:58:11,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:58:11" (3/3) ... [2019-12-07 12:58:11,366 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2019-12-07 12:58:11,373 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:58:11,378 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 12:58:11,386 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 12:58:11,402 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:58:11,402 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:58:11,403 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:58:11,403 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:58:11,403 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:58:11,403 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:58:11,403 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:58:11,403 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:58:11,414 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-12-07 12:58:11,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:58:11,418 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:58:11,419 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 12:58:11,419 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:58:11,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:58:11,423 INFO L82 PathProgramCache]: Analyzing trace with hash -415609573, now seen corresponding path program 1 times [2019-12-07 12:58:11,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:58:11,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770371060] [2019-12-07 12:58:11,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 12:58:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:58:11,561 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:58:11,565 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:58:11,575 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 12:58:11,575 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:58:11,579 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 12:58:11,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770371060] [2019-12-07 12:58:11,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:58:11,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:58:11,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779556240] [2019-12-07 12:58:11,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:58:11,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:58:11,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:58:11,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:58:11,594 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 2 states. [2019-12-07 12:58:11,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:58:11,614 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2019-12-07 12:58:11,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:58:11,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 12:58:11,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:58:11,623 INFO L225 Difference]: With dead ends: 184 [2019-12-07 12:58:11,623 INFO L226 Difference]: Without dead ends: 91 [2019-12-07 12:58:11,625 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 12:58:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-12-07 12:58:11,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-12-07 12:58:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 12:58:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2019-12-07 12:58:11,654 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2019-12-07 12:58:11,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:58:11,655 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2019-12-07 12:58:11,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:58:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2019-12-07 12:58:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 12:58:11,656 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:58:11,656 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 12:58:11,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:58:11,857 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:58:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:58:11,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1326640326, now seen corresponding path program 1 times [2019-12-07 12:58:11,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:58:11,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779844712] [2019-12-07 12:58:11,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 12:58:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:58:12,048 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:58:12,050 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:58:12,062 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 12:58:12,062 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:58:12,070 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 12:58:12,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779844712] [2019-12-07 12:58:12,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:58:12,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:58:12,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014712929] [2019-12-07 12:58:12,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:58:12,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:58:12,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:58:12,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:58:12,073 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 4 states. [2019-12-07 12:58:12,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:58:12,083 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2019-12-07 12:58:12,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:58:12,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 12:58:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:58:12,085 INFO L225 Difference]: With dead ends: 91 [2019-12-07 12:58:12,085 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 12:58:12,086 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 12:58:12,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 12:58:12,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 12:58:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 12:58:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-12-07 12:58:12,090 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-12-07 12:58:12,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:58:12,090 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-12-07 12:58:12,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:58:12,090 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-12-07 12:58:12,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:58:12,091 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:58:12,091 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 12:58:12,292 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:58:12,292 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:58:12,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:58:12,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1440289089, now seen corresponding path program 1 times [2019-12-07 12:58:12,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:58:12,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418238806] [2019-12-07 12:58:12,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 12:58:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:58:12,506 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:58:12,507 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:58:12,514 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 12:58:12,514 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:58:12,521 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 12:58:12,521 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418238806] [2019-12-07 12:58:12,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:58:12,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:58:12,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305706516] [2019-12-07 12:58:12,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:58:12,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:58:12,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:58:12,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:58:12,523 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 4 states. [2019-12-07 12:58:12,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:58:12,580 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2019-12-07 12:58:12,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:58:12,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 12:58:12,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:58:12,582 INFO L225 Difference]: With dead ends: 136 [2019-12-07 12:58:12,582 INFO L226 Difference]: Without dead ends: 101 [2019-12-07 12:58:12,583 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 12:58:12,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-07 12:58:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2019-12-07 12:58:12,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-12-07 12:58:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2019-12-07 12:58:12,591 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2019-12-07 12:58:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:58:12,592 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2019-12-07 12:58:12,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:58:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2019-12-07 12:58:12,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:58:12,593 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:58:12,593 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 12:58:12,793 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:58:12,794 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:58:12,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:58:12,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1072133948, now seen corresponding path program 1 times [2019-12-07 12:58:12,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:58:12,796 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131917937] [2019-12-07 12:58:12,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 12:58:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:58:12,967 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:58:12,969 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:58:12,975 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 12:58:12,975 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:58:12,977 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 12:58:12,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131917937] [2019-12-07 12:58:12,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:58:12,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 12:58:12,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683150277] [2019-12-07 12:58:12,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:58:12,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:58:12,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:58:12,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:58:12,979 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand 3 states. [2019-12-07 12:58:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:58:13,034 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2019-12-07 12:58:13,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:58:13,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 12:58:13,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:58:13,036 INFO L225 Difference]: With dead ends: 141 [2019-12-07 12:58:13,036 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 12:58:13,036 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 12:58:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 12:58:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2019-12-07 12:58:13,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-07 12:58:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2019-12-07 12:58:13,045 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2019-12-07 12:58:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:58:13,045 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2019-12-07 12:58:13,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:58:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2019-12-07 12:58:13,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 12:58:13,046 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:58:13,046 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] [2019-12-07 12:58:13,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:58:13,247 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:58:13,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:58:13,248 INFO L82 PathProgramCache]: Analyzing trace with hash -2003629676, now seen corresponding path program 1 times [2019-12-07 12:58:13,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:58:13,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916711615] [2019-12-07 12:58:13,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 12:58:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:58:13,403 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:58:13,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:58:13,420 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 12:58:13,420 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:58:13,445 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 12:58:13,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916711615] [2019-12-07 12:58:13,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:58:13,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 12:58:13,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217265213] [2019-12-07 12:58:13,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:58:13,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:58:13,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:58:13,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:58:13,446 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand 8 states. [2019-12-07 12:58:13,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:58:13,724 INFO L93 Difference]: Finished difference Result 888 states and 1304 transitions. [2019-12-07 12:58:13,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 12:58:13,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 12:58:13,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:58:13,729 INFO L225 Difference]: With dead ends: 888 [2019-12-07 12:58:13,729 INFO L226 Difference]: Without dead ends: 811 [2019-12-07 12:58:13,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 12:58:13,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2019-12-07 12:58:13,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 218. [2019-12-07 12:58:13,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-12-07 12:58:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 306 transitions. [2019-12-07 12:58:13,768 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 306 transitions. Word has length 27 [2019-12-07 12:58:13,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:58:13,768 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 306 transitions. [2019-12-07 12:58:13,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:58:13,768 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 306 transitions. [2019-12-07 12:58:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 12:58:13,769 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:58:13,769 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 12:58:13,970 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:58:13,971 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:58:13,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:58:13,972 INFO L82 PathProgramCache]: Analyzing trace with hash 591073878, now seen corresponding path program 1 times [2019-12-07 12:58:13,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:58:13,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588097296] [2019-12-07 12:58:13,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/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 12:58:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:58:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:58:15,623 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 12:58:15,624 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:58:15,824 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 12:58:15,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:58:15 BoogieIcfgContainer [2019-12-07 12:58:15,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:58:15,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:58:15,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:58:15,888 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:58:15,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:58:11" (3/4) ... [2019-12-07 12:58:15,890 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:58:15,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_493dea84-cab9-4e4c-818e-fe05361a6018/bin/utaipan/witness.graphml [2019-12-07 12:58:15,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:58:15,946 INFO L168 Benchmark]: Toolchain (without parser) took 5602.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:58:15,946 INFO L168 Benchmark]: CDTParser took 0.13 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 12:58:15,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:58:15,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:58:15,947 INFO L168 Benchmark]: Boogie Preprocessor took 29.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:58:15,947 INFO L168 Benchmark]: RCFGBuilder took 541.05 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:58:15,947 INFO L168 Benchmark]: TraceAbstraction took 4526.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -113.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:58:15,947 INFO L168 Benchmark]: Witness Printer took 56.50 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: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:58:15,949 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 399.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 541.05 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4526.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -113.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 56.50 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: 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: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] tmp = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L700] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L707] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L161] tmp___0 = getWaterLevel() [L163] COND TRUE tmp___0 == 2 [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] tmp___1 = isPumpRunning() [L167] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L318] __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, 95 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 396 SDtfs, 1045 SDslu, 727 SDs, 0 SdLazy, 132 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred 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, 634 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 10620 SizeOfPredicates, 6 NumberOfNonLiveVariables, 926 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...