./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.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_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/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 2802309dbd9334e3c65161de741c9f21c5d465d0 ...................................................................................................................................... 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_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/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 2802309dbd9334e3c65161de741c9f21c5d465d0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:46:04,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:46:04,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:46:04,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:46:04,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:46:04,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:46:04,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:46:04,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:46:04,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:46:04,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:46:04,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:46:04,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:46:04,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:46:04,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:46:04,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:46:04,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:46:04,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:46:04,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:46:04,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:46:04,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:46:04,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:46:04,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:46:04,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:46:04,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:46:04,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:46:04,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:46:04,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:46:04,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:46:04,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:46:04,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:46:04,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:46:04,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:46:04,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:46:04,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:46:04,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:46:04,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:46:04,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:46:04,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:46:04,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:46:04,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:46:04,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:46:04,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:46:04,423 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:46:04,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:46:04,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:46:04,423 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:46:04,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:46:04,424 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:46:04,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:46:04,424 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:46:04,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:46:04,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:46:04,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:46:04,425 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:46:04,425 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:46:04,425 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:46:04,425 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:46:04,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:46:04,426 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:46:04,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:46:04,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:46:04,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:46:04,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:46:04,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:46:04,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:46:04,427 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:46:04,427 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:46:04,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:46:04,427 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:46:04,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:46:04,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:46:04,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:46:04,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:46:04,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:46:04,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:46:04,429 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_361eac2c-0c4b-4974-8569-515bc2d38163/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 -> 2802309dbd9334e3c65161de741c9f21c5d465d0 [2019-12-07 11:46:04,526 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:46:04,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:46:04,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:46:04,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:46:04,539 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:46:04,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2019-12-07 11:46:04,579 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/6dd3d63f1/e9e0ec2e6b5c440d809b914f0d5071f5/FLAG6dbb6bf8b [2019-12-07 11:46:05,022 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:46:05,023 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2019-12-07 11:46:05,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/6dd3d63f1/e9e0ec2e6b5c440d809b914f0d5071f5/FLAG6dbb6bf8b [2019-12-07 11:46:05,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/6dd3d63f1/e9e0ec2e6b5c440d809b914f0d5071f5 [2019-12-07 11:46:05,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:46:05,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:46:05,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:46:05,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:46:05,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:46:05,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:46:05" (1/1) ... [2019-12-07 11:46:05,048 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 11:46:05, skipping insertion in model container [2019-12-07 11:46:05,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:46:05" (1/1) ... [2019-12-07 11:46:05,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:46:05,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:46:05,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:46:05,309 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 11:46:05,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@eae755f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:05, skipping insertion in model container [2019-12-07 11:46:05,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:46:05,310 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:46:05,311 INFO L168 Benchmark]: Toolchain (without parser) took 268.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -135.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:05,312 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 11:46:05,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:05,314 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 266.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 496]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:46:06,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:46:06,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:46:06,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:46:06,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:46:06,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:46:06,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:46:06,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:46:06,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:46:06,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:46:06,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:46:06,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:46:06,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:46:06,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:46:06,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:46:06,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:46:06,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:46:06,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:46:06,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:46:06,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:46:06,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:46:06,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:46:06,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:46:06,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:46:06,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:46:06,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:46:06,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:46:06,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:46:06,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:46:06,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:46:06,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:46:06,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:46:06,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:46:06,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:46:06,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:46:06,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:46:06,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:46:06,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:46:06,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:46:06,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:46:06,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:46:06,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:46:06,468 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:46:06,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:46:06,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:46:06,469 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:46:06,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:46:06,469 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:46:06,469 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:46:06,469 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:46:06,469 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:46:06,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:46:06,470 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:46:06,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:46:06,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:46:06,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:46:06,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:46:06,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:46:06,471 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:46:06,471 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:46:06,471 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:46:06,471 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:46:06,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:46:06,471 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:46:06,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:46:06,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:46:06,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:46:06,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:46:06,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:46:06,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:46:06,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:46:06,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:46:06,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:46:06,472 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:46:06,473 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:46:06,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:46:06,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:46:06,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:46:06,473 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_361eac2c-0c4b-4974-8569-515bc2d38163/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 -> 2802309dbd9334e3c65161de741c9f21c5d465d0 [2019-12-07 11:46:06,636 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:46:06,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:46:06,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:46:06,650 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:46:06,650 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:46:06,651 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2019-12-07 11:46:06,694 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/4563988de/19e019c873724deeaaaea22a15fab702/FLAG97ccfff83 [2019-12-07 11:46:07,164 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:46:07,164 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2019-12-07 11:46:07,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/4563988de/19e019c873724deeaaaea22a15fab702/FLAG97ccfff83 [2019-12-07 11:46:07,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/data/4563988de/19e019c873724deeaaaea22a15fab702 [2019-12-07 11:46:07,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:46:07,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:46:07,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:46:07,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:46:07,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:46:07,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07, skipping insertion in model container [2019-12-07 11:46:07,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:46:07,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:46:07,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:46:07,458 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:46:07,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:46:07,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:46:07,509 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:46:07,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:46:07,573 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:46:07,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07 WrapperNode [2019-12-07 11:46:07,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:46:07,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:46:07,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:46:07,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:46:07,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:46:07,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:46:07,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:46:07,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:46:07,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... [2019-12-07 11:46:07,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:46:07,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:46:07,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:46:07,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:46:07,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:46:07,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:46:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 11:46:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:46:07,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:46:08,234 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:46:08,234 INFO L287 CfgBuilder]: Removed 168 assume(true) statements. [2019-12-07 11:46:08,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:46:08 BoogieIcfgContainer [2019-12-07 11:46:08,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:46:08,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:46:08,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:46:08,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:46:08,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:46:07" (1/3) ... [2019-12-07 11:46:08,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a089c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:46:08, skipping insertion in model container [2019-12-07 11:46:08,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:46:07" (2/3) ... [2019-12-07 11:46:08,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a089c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:46:08, skipping insertion in model container [2019-12-07 11:46:08,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:46:08" (3/3) ... [2019-12-07 11:46:08,242 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2019-12-07 11:46:08,249 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:46:08,254 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:46:08,262 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:46:08,278 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:46:08,278 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:46:08,278 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:46:08,278 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:46:08,279 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:46:08,279 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:46:08,279 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:46:08,279 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:46:08,291 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-07 11:46:08,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:46:08,296 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:46:08,297 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 11:46:08,297 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:46:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:08,301 INFO L82 PathProgramCache]: Analyzing trace with hash -194461515, now seen corresponding path program 1 times [2019-12-07 11:46:08,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:46:08,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156904684] [2019-12-07 11:46:08,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:46:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:46:08,434 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:46:08,438 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:46:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:08,448 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:46:08,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:08,452 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156904684] [2019-12-07 11:46:08,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:46:08,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:46:08,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938445115] [2019-12-07 11:46:08,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:46:08,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:46:08,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:46:08,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:46:08,467 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-07 11:46:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:46:08,489 INFO L93 Difference]: Finished difference Result 220 states and 329 transitions. [2019-12-07 11:46:08,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:46:08,490 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 11:46:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:46:08,498 INFO L225 Difference]: With dead ends: 220 [2019-12-07 11:46:08,498 INFO L226 Difference]: Without dead ends: 109 [2019-12-07 11:46:08,501 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 11:46:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-07 11:46:08,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-07 11:46:08,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 11:46:08,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2019-12-07 11:46:08,532 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2019-12-07 11:46:08,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:46:08,532 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2019-12-07 11:46:08,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:46:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2019-12-07 11:46:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:46:08,533 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:46:08,533 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 11:46:08,734 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:46:08,735 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:46:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:08,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1105492268, now seen corresponding path program 1 times [2019-12-07 11:46:08,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:46:08,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771350584] [2019-12-07 11:46:08,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:46:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:46:08,964 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:46:08,966 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:46:08,980 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 11:46:08,980 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:46:08,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:08,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771350584] [2019-12-07 11:46:08,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:46:08,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:46:08,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413065720] [2019-12-07 11:46:08,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:46:08,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:46:08,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:46:08,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:46:08,991 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 4 states. [2019-12-07 11:46:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:46:09,003 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2019-12-07 11:46:09,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:46:09,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 11:46:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:46:09,004 INFO L225 Difference]: With dead ends: 109 [2019-12-07 11:46:09,004 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 11:46:09,005 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 11:46:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 11:46:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 11:46:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 11:46:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-12-07 11:46:09,010 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2019-12-07 11:46:09,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:46:09,010 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-12-07 11:46:09,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:46:09,010 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-12-07 11:46:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:46:09,011 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:46:09,011 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 11:46:09,211 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:46:09,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:46:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:09,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2019-12-07 11:46:09,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:46:09,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503324017] [2019-12-07 11:46:09,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 11:46:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:46:09,372 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:46:09,374 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:46:09,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:09,383 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:46:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:09,389 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503324017] [2019-12-07 11:46:09,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:46:09,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:46:09,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414891046] [2019-12-07 11:46:09,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:46:09,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:46:09,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:46:09,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:46:09,390 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 4 states. [2019-12-07 11:46:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:46:09,438 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2019-12-07 11:46:09,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:46:09,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 11:46:09,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:46:09,440 INFO L225 Difference]: With dead ends: 154 [2019-12-07 11:46:09,441 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 11:46:09,441 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 11:46:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 11:46:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2019-12-07 11:46:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 11:46:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2019-12-07 11:46:09,452 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2019-12-07 11:46:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:46:09,453 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2019-12-07 11:46:09,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:46:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2019-12-07 11:46:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 11:46:09,454 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:46:09,454 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 11:46:09,655 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:46:09,655 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:46:09,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:09,656 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2019-12-07 11:46:09,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:46:09,658 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510226119] [2019-12-07 11:46:09,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 11:46:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:46:09,819 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:46:09,820 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:46:09,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:09,839 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:46:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:46:09,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510226119] [2019-12-07 11:46:09,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:46:09,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 11:46:09,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984557328] [2019-12-07 11:46:09,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:46:09,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:46:09,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:46:09,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:46:09,871 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 8 states. [2019-12-07 11:46:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:46:10,171 INFO L93 Difference]: Finished difference Result 762 states and 1164 transitions. [2019-12-07 11:46:10,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 11:46:10,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-12-07 11:46:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:46:10,177 INFO L225 Difference]: With dead ends: 762 [2019-12-07 11:46:10,177 INFO L226 Difference]: Without dead ends: 700 [2019-12-07 11:46:10,179 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 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 11:46:10,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2019-12-07 11:46:10,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 178. [2019-12-07 11:46:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-12-07 11:46:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2019-12-07 11:46:10,209 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 26 [2019-12-07 11:46:10,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:46:10,209 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2019-12-07 11:46:10,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:46:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2019-12-07 11:46:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 11:46:10,211 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:46:10,211 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 11:46:10,411 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:46:10,412 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:46:10,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:46:10,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2019-12-07 11:46:10,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:46:10,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417966877] [2019-12-07 11:46:10,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 11:46:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:46:11,934 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:46:11,934 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:46:12,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:46:12,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:46:12 BoogieIcfgContainer [2019-12-07 11:46:12,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:46:12,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:46:12,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:46:12,211 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:46:12,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:46:08" (3/4) ... [2019-12-07 11:46:12,213 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:46:12,286 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_361eac2c-0c4b-4974-8569-515bc2d38163/bin/utaipan/witness.graphml [2019-12-07 11:46:12,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:46:12,288 INFO L168 Benchmark]: Toolchain (without parser) took 5102.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.3 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 289.7 kB. Max. memory is 11.5 GB. [2019-12-07 11:46:12,289 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:46:12,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:12,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.85 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:12,290 INFO L168 Benchmark]: Boogie Preprocessor took 32.57 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 11:46:12,290 INFO L168 Benchmark]: RCFGBuilder took 583.11 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: 82.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:12,290 INFO L168 Benchmark]: TraceAbstraction took 3974.42 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 1.2 GB in the end (delta: -163.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:46:12,291 INFO L168 Benchmark]: Witness Printer took 75.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:46:12,293 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 387.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.85 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.57 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 583.11 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: 82.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3974.42 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 1.2 GB in the end (delta: -163.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 75.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int retValue_acc ; [L446] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L452] tmp = valid_product() [L454] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L275] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L277] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L283] tmp = __VERIFIER_nondet_int() [L285] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND TRUE \read(tmp___2) [L257] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L68] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] COND TRUE \read(systemActive) [L123] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L126] COND FALSE !(\read(pumpRunning)) [L97] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L100] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L348] tmp___0 = getWaterLevel() [L350] COND TRUE tmp___0 == 2 [L175] int retValue_acc ; [L178] retValue_acc = pumpRunning [L179] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] tmp___1 = isPumpRunning() [L354] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 827 SDslu, 1022 SDs, 0 SdLazy, 145 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, 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, 4 MinimizatonAttempts, 567 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 8750 SizeOfPredicates, 6 NumberOfNonLiveVariables, 737 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...