./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5f050ff3359f4c5814c7559cf768b732b843fd60 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5f050ff3359f4c5814c7559cf768b732b843fd60 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-22 13:09:09,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:09:09,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:09:09,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:09:09,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:09:09,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:09:09,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:09:09,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:09:09,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:09:09,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:09:09,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:09:09,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:09:09,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:09:09,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:09:09,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:09:09,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:09:09,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:09:09,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:09:09,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:09:09,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:09:09,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:09:09,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:09:09,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:09:09,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:09:09,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:09:09,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:09:09,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:09:09,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:09:09,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:09:09,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:09:09,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:09:09,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:09:09,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:09:09,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:09:09,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:09:09,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:09:09,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:09:09,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:09:09,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:09:09,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:09:09,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:09:09,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:09:09,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:09:09,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:09:09,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:09:09,501 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:09:09,502 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:09:09,502 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:09:09,502 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:09:09,502 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:09:09,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:09:09,503 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:09:09,504 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:09:09,504 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:09:09,504 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:09:09,505 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:09:09,505 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:09:09,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:09:09,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:09:09,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:09:09,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:09:09,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:09:09,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:09:09,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:09:09,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:09:09,507 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:09:09,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:09:09,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:09:09,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:09:09,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:09:09,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:09:09,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:09:09,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:09:09,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:09:09,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:09:09,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:09:09,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:09:09,512 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:09:09,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:09:09,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:09:09,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:09:09,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:09:09,513 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f050ff3359f4c5814c7559cf768b732b843fd60 [2020-11-22 13:09:09,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:09:09,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:09:09,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:09:09,872 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:09:09,873 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:09:09,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2020-11-22 13:09:09,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/8f7692a09/e2c8e2e6230f4147b290fdc5ce133a7c/FLAG68897d36c [2020-11-22 13:09:10,493 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:09:10,495 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2020-11-22 13:09:10,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/8f7692a09/e2c8e2e6230f4147b290fdc5ce133a7c/FLAG68897d36c [2020-11-22 13:09:10,823 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/8f7692a09/e2c8e2e6230f4147b290fdc5ce133a7c [2020-11-22 13:09:10,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:09:10,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:09:10,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:10,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:09:10,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:09:10,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:10" (1/1) ... [2020-11-22 13:09:10,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b86fdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:10, skipping insertion in model container [2020-11-22 13:09:10,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:10" (1/1) ... [2020-11-22 13:09:10,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:09:10,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:11,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:11,255 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) [2020-11-22 13:09:11,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f212e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:11, skipping insertion in model container [2020-11-22 13:09:11,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:11,257 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:09:11,260 INFO L168 Benchmark]: Toolchain (without parser) took 431.33 ms. Allocated memory is still 92.3 MB. Free memory was 63.5 MB in the beginning and 63.4 MB in the end (delta: 91.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:11,262 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:11,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.64 ms. Allocated memory is still 92.3 MB. Free memory was 63.3 MB in the beginning and 63.4 MB in the end (delta: -135.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:11,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.64 ms. Allocated memory is still 92.3 MB. Free memory was 63.3 MB in the beginning and 63.4 MB in the end (delta: -135.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 643]: 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 0.2.0-a4ecdab [2020-11-22 13:09:13,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:09:13,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:09:13,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:09:13,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:09:13,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:09:13,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:09:13,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:09:13,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:09:13,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:09:13,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:09:13,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:09:13,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:09:13,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:09:13,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:09:13,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:09:13,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:09:13,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:09:13,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:09:13,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:09:13,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:09:13,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:09:13,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:09:13,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:09:13,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:09:13,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:09:13,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:09:13,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:09:13,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:09:13,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:09:13,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:09:13,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:09:13,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:09:13,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:09:13,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:09:13,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:09:13,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:09:13,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:09:13,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:09:13,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:09:13,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:09:13,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:09:13,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:09:13,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:09:13,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:09:13,802 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:09:13,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:09:13,802 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:09:13,803 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:09:13,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:09:13,803 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:09:13,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:09:13,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:09:13,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:09:13,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:09:13,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:09:13,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:09:13,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:09:13,805 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:09:13,805 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:09:13,805 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:09:13,806 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:09:13,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:09:13,806 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:09:13,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:09:13,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:09:13,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:09:13,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:09:13,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:09:13,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:09:13,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:09:13,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:09:13,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:09:13,808 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:09:13,808 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:09:13,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:09:13,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:09:13,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:09:13,809 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f050ff3359f4c5814c7559cf768b732b843fd60 [2020-11-22 13:09:14,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:09:14,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:09:14,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:09:14,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:09:14,208 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:09:14,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2020-11-22 13:09:14,292 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/78bb422cc/9522e26d4c974258bf0701bbc124da37/FLAG29cc03b94 [2020-11-22 13:09:14,887 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:09:14,888 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2020-11-22 13:09:14,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/78bb422cc/9522e26d4c974258bf0701bbc124da37/FLAG29cc03b94 [2020-11-22 13:09:15,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/data/78bb422cc/9522e26d4c974258bf0701bbc124da37 [2020-11-22 13:09:15,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:09:15,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:09:15,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:15,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:09:15,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:09:15,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:15" (1/1) ... [2020-11-22 13:09:15,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b90ffbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:15, skipping insertion in model container [2020-11-22 13:09:15,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:15" (1/1) ... [2020-11-22 13:09:15,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:09:15,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:15,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:15,795 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:09:15,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:15,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:15,931 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:09:16,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:16,079 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:09:16,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16 WrapperNode [2020-11-22 13:09:16,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:16,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:16,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:09:16,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:09:16,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:16,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:09:16,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:09:16,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:09:16,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... [2020-11-22 13:09:16,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:09:16,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:09:16,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:09:16,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:09:16,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/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 [2020-11-22 13:09:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:09:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:09:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:09:16,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:09:19,058 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:09:19,058 INFO L298 CfgBuilder]: Removed 210 assume(true) statements. [2020-11-22 13:09:19,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:19 BoogieIcfgContainer [2020-11-22 13:09:19,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:09:19,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:09:19,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:09:19,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:09:19,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:15" (1/3) ... [2020-11-22 13:09:19,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c347b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:19, skipping insertion in model container [2020-11-22 13:09:19,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:16" (2/3) ... [2020-11-22 13:09:19,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c347b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:19, skipping insertion in model container [2020-11-22 13:09:19,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:19" (3/3) ... [2020-11-22 13:09:19,070 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-11-22 13:09:19,084 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:09:19,088 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:09:19,098 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:09:19,118 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:09:19,119 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:09:19,119 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:09:19,119 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:09:19,119 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:09:19,119 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:09:19,119 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:09:19,120 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:09:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-11-22 13:09:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:09:19,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:19,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:19,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:19,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1173873591, now seen corresponding path program 1 times [2020-11-22 13:09:19,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:19,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218846533] [2020-11-22 13:09:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/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 [2020-11-22 13:09:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:19,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:09:19,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:19,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:19,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218846533] [2020-11-22 13:09:19,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:19,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:09:19,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549119668] [2020-11-22 13:09:19,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:09:19,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:19,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:09:19,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:09:19,446 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2020-11-22 13:09:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:19,478 INFO L93 Difference]: Finished difference Result 271 states and 404 transitions. [2020-11-22 13:09:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:09:19,479 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:09:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:19,490 INFO L225 Difference]: With dead ends: 271 [2020-11-22 13:09:19,490 INFO L226 Difference]: Without dead ends: 133 [2020-11-22 13:09:19,493 INFO L677 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 [2020-11-22 13:09:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-22 13:09:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-11-22 13:09:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-22 13:09:19,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2020-11-22 13:09:19,564 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2020-11-22 13:09:19,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:19,564 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2020-11-22 13:09:19,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:09:19,565 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2020-11-22 13:09:19,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:09:19,567 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:19,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:19,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:09:19,785 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:19,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:19,787 INFO L82 PathProgramCache]: Analyzing trace with hash 262842838, now seen corresponding path program 1 times [2020-11-22 13:09:19,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:19,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158485647] [2020-11-22 13:09:19,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/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 [2020-11-22 13:09:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:20,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:20,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:20,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:20,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158485647] [2020-11-22 13:09:20,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:20,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:09:20,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156262100] [2020-11-22 13:09:20,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:20,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:20,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:20,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:20,069 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 4 states. [2020-11-22 13:09:20,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:20,085 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2020-11-22 13:09:20,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:20,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:09:20,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:20,088 INFO L225 Difference]: With dead ends: 133 [2020-11-22 13:09:20,088 INFO L226 Difference]: Without dead ends: 55 [2020-11-22 13:09:20,089 INFO L677 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 [2020-11-22 13:09:20,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-22 13:09:20,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-22 13:09:20,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-22 13:09:20,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-11-22 13:09:20,095 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2020-11-22 13:09:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:20,095 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-11-22 13:09:20,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-11-22 13:09:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:09:20,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:20,097 INFO L422 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] [2020-11-22 13:09:20,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:09:20,312 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:20,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:20,313 INFO L82 PathProgramCache]: Analyzing trace with hash -980873092, now seen corresponding path program 1 times [2020-11-22 13:09:20,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:20,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885642445] [2020-11-22 13:09:20,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/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 [2020-11-22 13:09:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:20,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:20,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:20,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:20,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885642445] [2020-11-22 13:09:20,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:20,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:09:20,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757873525] [2020-11-22 13:09:20,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:20,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:20,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:20,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:20,572 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 4 states. [2020-11-22 13:09:20,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:20,651 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions. [2020-11-22 13:09:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:09:20,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:09:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:20,653 INFO L225 Difference]: With dead ends: 178 [2020-11-22 13:09:20,653 INFO L226 Difference]: Without dead ends: 129 [2020-11-22 13:09:20,654 INFO L677 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 [2020-11-22 13:09:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-22 13:09:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2020-11-22 13:09:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-22 13:09:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2020-11-22 13:09:20,677 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2020-11-22 13:09:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:20,677 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2020-11-22 13:09:20,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:20,677 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2020-11-22 13:09:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:09:20,678 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:20,679 INFO L422 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] [2020-11-22 13:09:20,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:09:20,893 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:20,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:20,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1838136026, now seen corresponding path program 1 times [2020-11-22 13:09:20,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:20,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2575995] [2020-11-22 13:09:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/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 [2020-11-22 13:09:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:21,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:21,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:21,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:21,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:21,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2575995] [2020-11-22 13:09:21,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:21,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:09:21,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424164529] [2020-11-22 13:09:21,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:21,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:21,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:21,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:21,123 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2020-11-22 13:09:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:21,199 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2020-11-22 13:09:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:21,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-22 13:09:21,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:21,201 INFO L225 Difference]: With dead ends: 169 [2020-11-22 13:09:21,201 INFO L226 Difference]: Without dead ends: 99 [2020-11-22 13:09:21,202 INFO L677 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 [2020-11-22 13:09:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-22 13:09:21,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2020-11-22 13:09:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-22 13:09:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2020-11-22 13:09:21,213 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2020-11-22 13:09:21,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:21,213 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2020-11-22 13:09:21,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:21,214 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2020-11-22 13:09:21,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 13:09:21,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:21,215 INFO L422 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] [2020-11-22 13:09:21,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:09:21,435 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:21,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1544213679, now seen corresponding path program 1 times [2020-11-22 13:09:21,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:21,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818172469] [2020-11-22 13:09:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/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 [2020-11-22 13:09:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:21,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:21,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:21,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:21,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818172469] [2020-11-22 13:09:21,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:21,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:09:21,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964604057] [2020-11-22 13:09:21,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:09:21,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:21,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:09:21,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:09:21,744 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand 8 states. [2020-11-22 13:09:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:22,366 INFO L93 Difference]: Finished difference Result 1073 states and 1567 transitions. [2020-11-22 13:09:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:09:22,367 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-11-22 13:09:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:22,374 INFO L225 Difference]: With dead ends: 1073 [2020-11-22 13:09:22,374 INFO L226 Difference]: Without dead ends: 982 [2020-11-22 13:09:22,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:09:22,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-11-22 13:09:22,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 247. [2020-11-22 13:09:22,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-11-22 13:09:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2020-11-22 13:09:22,431 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 27 [2020-11-22 13:09:22,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:22,431 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2020-11-22 13:09:22,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:09:22,431 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2020-11-22 13:09:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 13:09:22,437 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:22,438 INFO L422 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] [2020-11-22 13:09:22,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:09:22,639 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:22,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1050489875, now seen corresponding path program 1 times [2020-11-22 13:09:22,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:22,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409966325] [2020-11-22 13:09:22,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/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 [2020-11-22 13:09:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:23,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:24,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:25,028 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:09:25,028 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:09:25,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:09:25,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:25 BoogieIcfgContainer [2020-11-22 13:09:25,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:09:25,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:09:25,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:09:25,418 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:09:25,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:19" (3/4) ... [2020-11-22 13:09:25,420 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:09:25,537 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d317add9-05d4-4370-9e7a-0f1231666762/bin/utaipan/witness.graphml [2020-11-22 13:09:25,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:09:25,539 INFO L168 Benchmark]: Toolchain (without parser) took 10256.96 ms. Allocated memory was 52.4 MB in the beginning and 109.1 MB in the end (delta: 56.6 MB). Free memory was 28.5 MB in the beginning and 57.0 MB in the end (delta: -28.5 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:25,540 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 34.8 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:25,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.80 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.3 MB in the beginning and 37.6 MB in the end (delta: -9.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:25,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.19 ms. Allocated memory is still 71.3 MB. Free memory was 37.4 MB in the beginning and 51.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:25,542 INFO L168 Benchmark]: Boogie Preprocessor took 95.24 ms. Allocated memory is still 71.3 MB. Free memory was 51.5 MB in the beginning and 48.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:25,542 INFO L168 Benchmark]: RCFGBuilder took 2765.95 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 48.5 MB in the beginning and 53.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:25,543 INFO L168 Benchmark]: TraceAbstraction took 6352.86 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 68.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:25,543 INFO L168 Benchmark]: Witness Printer took 120.15 ms. Allocated memory is still 109.1 MB. Free memory was 68.5 MB in the beginning and 57.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:25,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 34.8 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 795.80 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.3 MB in the beginning and 37.6 MB in the end (delta: -9.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.19 ms. Allocated memory is still 71.3 MB. Free memory was 37.4 MB in the beginning and 51.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.24 ms. Allocated memory is still 71.3 MB. Free memory was 51.5 MB in the beginning and 48.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2765.95 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 48.5 MB in the beginning and 53.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6352.86 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 68.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. * Witness Printer took 120.15 ms. Allocated memory is still 109.1 MB. Free memory was 68.5 MB in the beginning and 57.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L131] int waterLevel = 1; [L132] int methaneLevelCritical = 0; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L449] int cleanupTimeShifts = 4; [L784] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int retValue_acc ; [L524] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] tmp = valid_product() [L532] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L547] int splverifierCounter ; [L548] int tmp ; [L549] int tmp___0 ; [L550] int tmp___1 ; [L551] int tmp___2 ; [L554] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L564] tmp = __VERIFIER_nondet_int() [L566] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L149] COND TRUE waterLevel < 2 [L150] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] tmp___0 = __VERIFIER_nondet_int() [L576] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L584] tmp___2 = __VERIFIER_nondet_int() [L586] COND FALSE !(\read(tmp___2)) [L592] tmp___1 = __VERIFIER_nondet_int() [L594] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L436] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L238] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L245] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L170] int retValue_acc ; [L173] retValue_acc = methaneLevelCritical [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L202] int retValue_acc ; [L205] retValue_acc = waterLevel [L206] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L362] int retValue_acc ; [L365] retValue_acc = pumpRunning [L366] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product48.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 1382 SDslu, 1094 SDs, 0 SdLazy, 176 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 790 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10826 SizeOfPredicates, 6 NumberOfNonLiveVariables, 997 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...