./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.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_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 fb1767f688fc9701e1f3b125f3120ace113b61a7 ...................................................................................................................................... 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_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 fb1767f688fc9701e1f3b125f3120ace113b61a7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:11:45,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:11:45,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:11:45,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:11:45,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:11:45,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:11:45,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:11:45,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:11:45,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:11:45,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:11:45,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:11:45,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:11:45,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:11:45,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:11:45,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:11:45,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:11:45,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:11:45,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:11:45,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:11:45,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:11:45,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:11:45,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:11:45,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:11:45,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:11:45,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:11:45,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:11:45,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:11:45,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:11:45,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:11:45,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:11:45,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:11:45,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:11:45,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:11:45,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:11:45,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:11:45,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:11:45,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:11:45,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:11:45,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:11:45,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:11:45,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:11:45,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:11:45,305 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:11:45,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:11:45,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:11:45,306 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:11:45,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:11:45,306 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:11:45,306 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:11:45,306 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:11:45,306 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:11:45,306 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:11:45,307 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:11:45,307 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:11:45,307 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:11:45,307 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:11:45,307 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:11:45,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:11:45,308 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:11:45,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:11:45,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:11:45,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:11:45,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:11:45,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:11:45,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:11:45,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:11:45,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:11:45,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:11:45,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:11:45,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:11:45,310 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:11:45,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:11:45,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:11:45,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:11:45,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:11:45,310 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_90d21270-0ea4-4384-9885-fe2c002347e4/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 -> fb1767f688fc9701e1f3b125f3120ace113b61a7 [2019-12-07 20:11:45,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:11:45,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:11:45,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:11:45,423 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:11:45,423 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:11:45,424 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2019-12-07 20:11:45,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/f4bc6bc77/1fab0caef098471e8be461ee0d68bd91/FLAG7a25b0f03 [2019-12-07 20:11:45,832 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:11:45,832 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2019-12-07 20:11:45,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/f4bc6bc77/1fab0caef098471e8be461ee0d68bd91/FLAG7a25b0f03 [2019-12-07 20:11:46,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/f4bc6bc77/1fab0caef098471e8be461ee0d68bd91 [2019-12-07 20:11:46,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:11:46,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:11:46,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:11:46,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:11:46,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:11:46,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:11:46" (1/1) ... [2019-12-07 20:11:46,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a523291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:46, skipping insertion in model container [2019-12-07 20:11:46,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:11:46" (1/1) ... [2019-12-07 20:11:46,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:11:46,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:11:46,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:11:46,494 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 20:11:46,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c0c2b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:46, skipping insertion in model container [2019-12-07 20:11:46,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:11:46,495 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:11:46,497 INFO L168 Benchmark]: Toolchain (without parser) took 264.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:11:46,498 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:11:46,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:11:46,499 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 68]: 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 20:11:47,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:11:47,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:11:47,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:11:47,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:11:47,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:11:47,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:11:47,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:11:47,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:11:47,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:11:47,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:11:47,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:11:47,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:11:47,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:11:47,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:11:47,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:11:47,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:11:47,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:11:47,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:11:47,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:11:47,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:11:47,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:11:47,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:11:47,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:11:47,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:11:47,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:11:47,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:11:47,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:11:47,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:11:47,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:11:47,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:11:47,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:11:47,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:11:47,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:11:47,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:11:47,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:11:47,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:11:47,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:11:47,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:11:47,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:11:47,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:11:47,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:11:47,636 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:11:47,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:11:47,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:11:47,637 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:11:47,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:11:47,637 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:11:47,637 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:11:47,637 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:11:47,637 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:11:47,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:11:47,638 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:11:47,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:11:47,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:11:47,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:11:47,639 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:11:47,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:11:47,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:11:47,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:11:47,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:11:47,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:11:47,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:11:47,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:11:47,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:11:47,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:11:47,641 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:11:47,641 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:11:47,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:11:47,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:11:47,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:11:47,641 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_90d21270-0ea4-4384-9885-fe2c002347e4/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 -> fb1767f688fc9701e1f3b125f3120ace113b61a7 [2019-12-07 20:11:47,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:11:47,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:11:47,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:11:47,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:11:47,822 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:11:47,822 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2019-12-07 20:11:47,869 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/85abea30e/71250a7c28114478a3b0c6724c494e01/FLAG15d0ba2eb [2019-12-07 20:11:48,341 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:11:48,341 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2019-12-07 20:11:48,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/85abea30e/71250a7c28114478a3b0c6724c494e01/FLAG15d0ba2eb [2019-12-07 20:11:48,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/data/85abea30e/71250a7c28114478a3b0c6724c494e01 [2019-12-07 20:11:48,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:11:48,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:11:48,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:11:48,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:11:48,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:11:48,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48, skipping insertion in model container [2019-12-07 20:11:48,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:11:48,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:11:48,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:11:48,623 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:11:48,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:11:48,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:11:48,672 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:11:48,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:11:48,733 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:11:48,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48 WrapperNode [2019-12-07 20:11:48,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:11:48,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:11:48,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:11:48,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:11:48,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:11:48,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:11:48,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:11:48,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:11:48,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... [2019-12-07 20:11:48,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:11:48,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:11:48,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:11:48,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:11:48,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 20:11:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:11:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:11:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:11:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:11:49,445 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:11:49,445 INFO L287 CfgBuilder]: Removed 202 assume(true) statements. [2019-12-07 20:11:49,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:11:49 BoogieIcfgContainer [2019-12-07 20:11:49,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:11:49,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:11:49,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:11:49,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:11:49,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:11:48" (1/3) ... [2019-12-07 20:11:49,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:11:49, skipping insertion in model container [2019-12-07 20:11:49,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:11:48" (2/3) ... [2019-12-07 20:11:49,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:11:49, skipping insertion in model container [2019-12-07 20:11:49,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:11:49" (3/3) ... [2019-12-07 20:11:49,451 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2019-12-07 20:11:49,458 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:11:49,464 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:11:49,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:11:49,489 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:11:49,489 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:11:49,489 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:11:49,489 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:11:49,489 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:11:49,489 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:11:49,490 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:11:49,490 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:11:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-12-07 20:11:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 20:11:49,507 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:11:49,507 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 20:11:49,508 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:11:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:11:49,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times [2019-12-07 20:11:49,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:11:49,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246600322] [2019-12-07 20:11:49,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 20:11:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:11:49,649 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:11:49,653 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:11:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:11:49,663 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:11:49,667 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 20:11:49,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246600322] [2019-12-07 20:11:49,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:11:49,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:11:49,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3043424] [2019-12-07 20:11:49,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:11:49,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:11:49,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:11:49,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:11:49,683 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2019-12-07 20:11:49,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:11:49,707 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2019-12-07 20:11:49,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:11:49,708 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 20:11:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:11:49,717 INFO L225 Difference]: With dead ends: 280 [2019-12-07 20:11:49,717 INFO L226 Difference]: Without dead ends: 139 [2019-12-07 20:11:49,719 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 20:11:49,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-12-07 20:11:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-12-07 20:11:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-12-07 20:11:49,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2019-12-07 20:11:49,753 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2019-12-07 20:11:49,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:11:49,754 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2019-12-07 20:11:49,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:11:49,754 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2019-12-07 20:11:49,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:11:49,755 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:11:49,755 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 20:11:49,956 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:11:49,956 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:11:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:11:49,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times [2019-12-07 20:11:49,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:11:49,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053441978] [2019-12-07 20:11:49,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 20:11:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:11:50,076 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:11:50,078 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:11:50,091 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 20:11:50,091 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:11:50,099 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 20:11:50,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053441978] [2019-12-07 20:11:50,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:11:50,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:11:50,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971993678] [2019-12-07 20:11:50,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:11:50,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:11:50,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:11:50,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:11:50,102 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 4 states. [2019-12-07 20:11:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:11:50,114 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2019-12-07 20:11:50,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:11:50,115 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 20:11:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:11:50,116 INFO L225 Difference]: With dead ends: 139 [2019-12-07 20:11:50,116 INFO L226 Difference]: Without dead ends: 57 [2019-12-07 20:11:50,117 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 20:11:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-12-07 20:11:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-12-07 20:11:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 20:11:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2019-12-07 20:11:50,122 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2019-12-07 20:11:50,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:11:50,122 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2019-12-07 20:11:50,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:11:50,122 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-12-07 20:11:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:11:50,123 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:11:50,123 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 20:11:50,324 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:11:50,325 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:11:50,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:11:50,326 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2019-12-07 20:11:50,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:11:50,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21158004] [2019-12-07 20:11:50,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 20:11:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:11:50,535 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:11:50,537 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:11:50,544 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 20:11:50,545 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:11:50,552 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 20:11:50,553 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21158004] [2019-12-07 20:11:50,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:11:50,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 20:11:50,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868511987] [2019-12-07 20:11:50,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:11:50,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:11:50,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:11:50,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:11:50,554 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 4 states. [2019-12-07 20:11:50,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:11:50,573 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2019-12-07 20:11:50,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:11:50,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 20:11:50,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:11:50,575 INFO L225 Difference]: With dead ends: 184 [2019-12-07 20:11:50,575 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 20:11:50,576 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 20:11:50,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 20:11:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2019-12-07 20:11:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 20:11:50,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2019-12-07 20:11:50,589 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2019-12-07 20:11:50,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:11:50,589 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2019-12-07 20:11:50,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:11:50,589 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2019-12-07 20:11:50,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 20:11:50,590 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:11:50,590 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 20:11:50,791 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:11:50,791 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:11:50,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:11:50,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2019-12-07 20:11:50,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:11:50,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954373790] [2019-12-07 20:11:50,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 20:11:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:11:50,974 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:11:50,975 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:11:50,980 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 20:11:50,980 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:11:50,982 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 20:11:50,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954373790] [2019-12-07 20:11:50,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:11:50,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:11:50,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496957732] [2019-12-07 20:11:50,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:11:50,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:11:50,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:11:50,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:11:50,984 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2019-12-07 20:11:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:11:51,054 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2019-12-07 20:11:51,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:11:51,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 20:11:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:11:51,056 INFO L225 Difference]: With dead ends: 173 [2019-12-07 20:11:51,056 INFO L226 Difference]: Without dead ends: 101 [2019-12-07 20:11:51,057 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 20:11:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-07 20:11:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2019-12-07 20:11:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-12-07 20:11:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2019-12-07 20:11:51,070 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2019-12-07 20:11:51,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:11:51,071 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2019-12-07 20:11:51,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:11:51,071 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2019-12-07 20:11:51,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 20:11:51,072 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:11:51,072 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 20:11:51,272 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:11:51,273 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:11:51,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:11:51,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2019-12-07 20:11:51,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:11:51,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899472882] [2019-12-07 20:11:51,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 20:11:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:11:51,477 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:11:51,478 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:11:51,493 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 20:11:51,493 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:11:51,519 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 20:11:51,519 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899472882] [2019-12-07 20:11:51,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:11:51,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:11:51,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817784970] [2019-12-07 20:11:51,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:11:51,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:11:51,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:11:51,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:11:51,521 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 8 states. [2019-12-07 20:11:51,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:11:51,890 INFO L93 Difference]: Finished difference Result 1099 states and 1606 transitions. [2019-12-07 20:11:51,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 20:11:51,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 20:11:51,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:11:51,897 INFO L225 Difference]: With dead ends: 1099 [2019-12-07 20:11:51,898 INFO L226 Difference]: Without dead ends: 1006 [2019-12-07 20:11:51,899 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 20:11:51,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2019-12-07 20:11:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 251. [2019-12-07 20:11:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-12-07 20:11:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2019-12-07 20:11:51,930 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 27 [2019-12-07 20:11:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:11:51,930 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2019-12-07 20:11:51,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:11:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2019-12-07 20:11:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 20:11:51,931 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:11:51,931 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 20:11:52,132 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:11:52,132 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:11:52,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:11:52,133 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2019-12-07 20:11:52,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:11:52,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922636695] [2019-12-07 20:11:52,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/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 20:11:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:11:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:11:54,039 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:11:54,039 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:11:54,240 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:11:54,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:11:54 BoogieIcfgContainer [2019-12-07 20:11:54,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:11:54,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:11:54,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:11:54,321 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:11:54,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:11:49" (3/4) ... [2019-12-07 20:11:54,323 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:11:54,377 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_90d21270-0ea4-4384-9885-fe2c002347e4/bin/utaipan/witness.graphml [2019-12-07 20:11:54,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:11:54,378 INFO L168 Benchmark]: Toolchain (without parser) took 6018.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:11:54,378 INFO L168 Benchmark]: CDTParser took 0.19 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 20:11:54,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:11:54,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.52 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 20:11:54,379 INFO L168 Benchmark]: Boogie Preprocessor took 36.60 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 20:11:54,379 INFO L168 Benchmark]: RCFGBuilder took 627.32 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: 79.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:11:54,379 INFO L168 Benchmark]: TraceAbstraction took 4874.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -94.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:11:54,380 INFO L168 Benchmark]: Witness Printer took 55.84 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:11:54,381 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 373.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.52 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 36.60 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. * RCFGBuilder took 627.32 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: 79.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4874.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -94.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 55.84 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] int retValue_acc ; [L597] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L710] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L712] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L987] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L994] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L776] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L783] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L694] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 578 SDtfs, 1551 SDslu, 1015 SDs, 0 SdLazy, 170 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s 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...