./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs --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 568589b25cd51d2d7911ddb09246fc208b301ce1 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs --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 568589b25cd51d2d7911ddb09246fc208b301ce1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.1-dev-5709675 [2021-10-16 02:17:54,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:17:54,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:17:54,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:17:54,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:17:54,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:17:54,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:17:54,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:17:54,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:17:54,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:17:54,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:17:54,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:17:54,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:17:54,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:17:54,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:17:54,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:17:54,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:17:54,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:17:54,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:17:54,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:17:54,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:17:54,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:17:54,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:17:54,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:17:54,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:17:54,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:17:54,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:17:54,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:17:54,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:17:54,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:17:54,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:17:54,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:17:54,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:17:54,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:17:54,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:17:54,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:17:54,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:17:54,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:17:54,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:17:54,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:17:54,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:17:54,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:17:54,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:17:54,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:17:54,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:17:54,507 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:17:54,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:17:54,507 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:17:54,508 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:17:54,508 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:17:54,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:17:54,509 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:17:54,509 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:17:54,509 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:17:54,509 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:17:54,510 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:17:54,510 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:17:54,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:17:54,511 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:17:54,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:17:54,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:17:54,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:17:54,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:17:54,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:17:54,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:17:54,513 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:17:54,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:17:54,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:17:54,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:17:54,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:17:54,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:17:54,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:17:54,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:17:54,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:17:54,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:17:54,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:17:54,517 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:17:54,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:17:54,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:17:54,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:17:54,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:17:54,518 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_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 568589b25cd51d2d7911ddb09246fc208b301ce1 [2021-10-16 02:17:54,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:17:54,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:17:54,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:17:54,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:17:54,834 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:17:54,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-10-16 02:17:54,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/e198ac294/1755d5aef0024af5850b644cdb4015a8/FLAGc08e2c036 [2021-10-16 02:17:55,618 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:17:55,618 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-10-16 02:17:55,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/e198ac294/1755d5aef0024af5850b644cdb4015a8/FLAGc08e2c036 [2021-10-16 02:17:55,946 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/e198ac294/1755d5aef0024af5850b644cdb4015a8 [2021-10-16 02:17:55,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:17:55,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:17:55,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:17:55,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:17:55,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:17:55,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:17:55" (1/1) ... [2021-10-16 02:17:55,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6e6a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:55, skipping insertion in model container [2021-10-16 02:17:55,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:17:55" (1/1) ... [2021-10-16 02:17:55,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:17:56,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:17:56,397 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c[14430,14443] [2021-10-16 02:17:56,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:17:56,438 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) [2021-10-16 02:17:56,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37110fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:56, skipping insertion in model container [2021-10-16 02:17:56,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:17:56,457 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:17:56,459 INFO L168 Benchmark]: Toolchain (without parser) took 507.08 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 62.1 MB in the beginning and 100.4 MB in the end (delta: -38.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:56,460 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory is still 49.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:17:56,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.95 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 61.9 MB in the beginning and 100.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:56,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory is still 49.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 503.95 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 61.9 MB in the beginning and 100.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 280]: 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 0.2.1-dev-5709675 [2021-10-16 02:17:59,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:17:59,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:17:59,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:17:59,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:17:59,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:17:59,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:17:59,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:17:59,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:17:59,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:17:59,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:17:59,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:17:59,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:17:59,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:17:59,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:17:59,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:17:59,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:17:59,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:17:59,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:17:59,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:17:59,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:17:59,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:17:59,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:17:59,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:17:59,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:17:59,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:17:59,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:17:59,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:17:59,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:17:59,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:17:59,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:17:59,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:17:59,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:17:59,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:17:59,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:17:59,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:17:59,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:17:59,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:17:59,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:17:59,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:17:59,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:17:59,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:17:59,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:17:59,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:17:59,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:17:59,478 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:17:59,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:17:59,479 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:17:59,479 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:17:59,479 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:17:59,480 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:17:59,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:17:59,483 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:17:59,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:17:59,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:17:59,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:17:59,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:17:59,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:17:59,484 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:17:59,485 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:17:59,485 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:17:59,485 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:17:59,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:17:59,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:17:59,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:17:59,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:17:59,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:17:59,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:17:59,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:17:59,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:17:59,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:17:59,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:17:59,488 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:17:59,488 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:17:59,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:17:59,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:17:59,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:17:59,490 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_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 568589b25cd51d2d7911ddb09246fc208b301ce1 [2021-10-16 02:17:59,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:18:00,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:18:00,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:18:00,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:18:00,017 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:18:00,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-10-16 02:18:00,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/905ac7b3e/a401d2013cc4481688b7f03d5fcd1a8e/FLAG15a8e249d [2021-10-16 02:18:00,907 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:18:00,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-10-16 02:18:00,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/905ac7b3e/a401d2013cc4481688b7f03d5fcd1a8e/FLAG15a8e249d [2021-10-16 02:18:01,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/data/905ac7b3e/a401d2013cc4481688b7f03d5fcd1a8e [2021-10-16 02:18:01,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:18:01,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:18:01,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:18:01,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:18:01,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:18:01,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:01,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a4e701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01, skipping insertion in model container [2021-10-16 02:18:01,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:01,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:18:01,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:18:01,637 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c[14430,14443] [2021-10-16 02:18:01,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:18:01,712 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:18:01,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:18:01,811 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c[14430,14443] [2021-10-16 02:18:01,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:18:01,851 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:18:01,949 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c[14430,14443] [2021-10-16 02:18:01,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:18:01,984 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:18:01,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01 WrapperNode [2021-10-16 02:18:01,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:18:01,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:18:01,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:18:01,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:18:02,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:18:02,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:18:02,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:18:02,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:18:02,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:18:02,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:18:02,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:18:02,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:18:02,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (1/1) ... [2021-10-16 02:18:02,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:18:02,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:18:02,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:18:02,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:18:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:18:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:18:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:18:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:18:04,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:18:04,633 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2021-10-16 02:18:04,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:18:04 BoogieIcfgContainer [2021-10-16 02:18:04,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:18:04,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:18:04,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:18:04,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:18:04,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:18:01" (1/3) ... [2021-10-16 02:18:04,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a290d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:18:04, skipping insertion in model container [2021-10-16 02:18:04,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:01" (2/3) ... [2021-10-16 02:18:04,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a290d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:18:04, skipping insertion in model container [2021-10-16 02:18:04,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:18:04" (3/3) ... [2021-10-16 02:18:04,646 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2021-10-16 02:18:04,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:18:04,654 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 02:18:04,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:18:04,744 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:18:04,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:18:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 02:18:04,796 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:18:04,797 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:18:04,804 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:18:04,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:18:04,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1892552075, now seen corresponding path program 1 times [2021-10-16 02:18:04,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:18:04,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074656904] [2021-10-16 02:18:04,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:18:04,835 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:18:04,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:18:04,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:18:04,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:18:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:18:05,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:18:05,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:18:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:05,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:18:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:05,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:18:05,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074656904] [2021-10-16 02:18:05,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074656904] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:18:05,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:18:05,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:18:05,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799032030] [2021-10-16 02:18:05,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:18:05,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:18:05,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:18:05,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:18:05,489 INFO L87 Difference]: Start difference. First operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:05,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:18:05,524 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2021-10-16 02:18:05,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:18:05,526 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-16 02:18:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:18:05,543 INFO L225 Difference]: With dead ends: 124 [2021-10-16 02:18:05,543 INFO L226 Difference]: Without dead ends: 61 [2021-10-16 02:18:05,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:18:05,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-16 02:18:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-16 02:18:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 60 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2021-10-16 02:18:05,601 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2021-10-16 02:18:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:18:05,602 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2021-10-16 02:18:05,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2021-10-16 02:18:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 02:18:05,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:18:05,604 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:18:05,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:18:05,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:18:05,820 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:18:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:18:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash 177187266, now seen corresponding path program 1 times [2021-10-16 02:18:05,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:18:05,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982478430] [2021-10-16 02:18:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:18:05,823 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:18:05,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:18:05,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:18:05,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:18:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:18:06,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:18:06,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:18:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:06,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:18:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:06,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:18:06,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982478430] [2021-10-16 02:18:06,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982478430] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:18:06,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:18:06,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:18:06,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385078089] [2021-10-16 02:18:06,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:18:06,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:18:06,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:18:06,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:18:06,346 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:18:06,375 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2021-10-16 02:18:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:18:06,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-16 02:18:06,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:18:06,379 INFO L225 Difference]: With dead ends: 61 [2021-10-16 02:18:06,380 INFO L226 Difference]: Without dead ends: 31 [2021-10-16 02:18:06,381 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:18:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-16 02:18:06,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-16 02:18:06,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-10-16 02:18:06,403 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2021-10-16 02:18:06,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:18:06,404 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-10-16 02:18:06,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:06,405 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-10-16 02:18:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 02:18:06,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:18:06,407 INFO L512 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] [2021-10-16 02:18:06,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 02:18:06,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:18:06,626 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:18:06,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:18:06,627 INFO L82 PathProgramCache]: Analyzing trace with hash 755880693, now seen corresponding path program 1 times [2021-10-16 02:18:06,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:18:06,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334243300] [2021-10-16 02:18:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:18:06,629 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:18:06,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:18:06,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:18:06,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:18:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:18:06,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:18:06,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:18:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:07,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:18:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:07,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:18:07,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334243300] [2021-10-16 02:18:07,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334243300] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:18:07,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:18:07,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:18:07,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880973067] [2021-10-16 02:18:07,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:18:07,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:18:07,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:18:07,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:18:07,133 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:18:07,177 INFO L93 Difference]: Finished difference Result 106 states and 154 transitions. [2021-10-16 02:18:07,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:18:07,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-16 02:18:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:18:07,182 INFO L225 Difference]: With dead ends: 106 [2021-10-16 02:18:07,182 INFO L226 Difference]: Without dead ends: 81 [2021-10-16 02:18:07,183 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:18:07,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-10-16 02:18:07,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 52. [2021-10-16 02:18:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 51 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:07,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2021-10-16 02:18:07,206 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2021-10-16 02:18:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:18:07,207 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-10-16 02:18:07,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2021-10-16 02:18:07,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 02:18:07,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:18:07,209 INFO L512 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] [2021-10-16 02:18:07,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:18:07,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:18:07,425 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:18:07,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:18:07,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1883276786, now seen corresponding path program 1 times [2021-10-16 02:18:07,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:18:07,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898427317] [2021-10-16 02:18:07,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:18:07,429 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:18:07,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:18:07,430 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:18:07,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:18:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:18:07,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:18:07,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:18:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:07,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:18:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:18:07,971 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:18:07,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898427317] [2021-10-16 02:18:07,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898427317] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:18:07,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:18:07,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-16 02:18:07,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327710439] [2021-10-16 02:18:07,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:18:07,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:18:07,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:18:07,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:18:07,977 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:18:08,316 INFO L93 Difference]: Finished difference Result 506 states and 780 transitions. [2021-10-16 02:18:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 02:18:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-16 02:18:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:18:08,322 INFO L225 Difference]: With dead ends: 506 [2021-10-16 02:18:08,322 INFO L226 Difference]: Without dead ends: 460 [2021-10-16 02:18:08,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 157.8ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-16 02:18:08,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-10-16 02:18:08,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 130. [2021-10-16 02:18:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.449612403100775) internal successors, (187), 129 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2021-10-16 02:18:08,357 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 24 [2021-10-16 02:18:08,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:18:08,358 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2021-10-16 02:18:08,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:18:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2021-10-16 02:18:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:18:08,360 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:18:08,360 INFO L512 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] [2021-10-16 02:18:08,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:18:08,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:18:08,580 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:18:08,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:18:08,581 INFO L82 PathProgramCache]: Analyzing trace with hash -535231376, now seen corresponding path program 1 times [2021-10-16 02:18:08,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:18:08,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583631907] [2021-10-16 02:18:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:18:08,582 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:18:08,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:18:08,584 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:18:08,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:18:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:18:10,132 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:18:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:18:11,419 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 02:18:11,419 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:18:11,421 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:18:11,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:18:11,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:18:11,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:18:11,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:18:11,653 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:18:11,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:18:11 BoogieIcfgContainer [2021-10-16 02:18:11,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:18:11,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:18:11,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:18:11,790 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:18:11,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:18:04" (3/4) ... [2021-10-16 02:18:11,798 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:18:11,949 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:18:11,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:18:11,952 INFO L168 Benchmark]: Toolchain (without parser) took 10789.18 ms. Allocated memory was 56.6 MB in the beginning and 92.3 MB in the end (delta: 35.7 MB). Free memory was 33.5 MB in the beginning and 45.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:11,952 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:11,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.81 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 33.3 MB in the beginning and 42.9 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:11,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.08 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 40.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:11,955 INFO L168 Benchmark]: Boogie Preprocessor took 77.37 ms. Allocated memory is still 73.4 MB. Free memory was 40.0 MB in the beginning and 37.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:11,955 INFO L168 Benchmark]: RCFGBuilder took 2480.25 ms. Allocated memory is still 73.4 MB. Free memory was 37.9 MB in the beginning and 49.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:11,956 INFO L168 Benchmark]: TraceAbstraction took 7151.10 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 56.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:11,956 INFO L168 Benchmark]: Witness Printer took 160.10 ms. Allocated memory is still 92.3 MB. Free memory was 56.4 MB in the beginning and 45.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:11,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 821.81 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 33.3 MB in the beginning and 42.9 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.08 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 40.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.37 ms. Allocated memory is still 73.4 MB. Free memory was 40.0 MB in the beginning and 37.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2480.25 ms. Allocated memory is still 73.4 MB. Free memory was 37.9 MB in the beginning and 49.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7151.10 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 56.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. * Witness Printer took 160.10 ms. Allocated memory is still 92.3 MB. Free memory was 56.4 MB in the beginning and 45.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 660]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L129] int pumpRunning = 0; [L130] int systemActive = 1; [L421] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L700] int cleanupTimeShifts = 4; [L796] int waterLevel = 1; [L797] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] int retValue_acc ; [L774] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L780] tmp = valid_product() [L782] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L814] COND TRUE waterLevel < 2 [L815] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L144] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L835] int retValue_acc ; [L838] retValue_acc = methaneLevelCritical [L839] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L867] int retValue_acc ; [L870] retValue_acc = waterLevel [L871] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] tmp___0 = getWaterLevel() [L681] COND TRUE tmp___0 == 2 [L192] int retValue_acc ; [L195] retValue_acc = pumpRunning [L196] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L683] tmp___1 = isPumpRunning() [L685] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L660] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 660]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6921.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 38.2ms, AutomataDifference: 526.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 240 SDtfs, 564 SDslu, 466 SDs, 0 SdLazy, 90 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 123.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 179.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 111.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 359 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 152.0ms SsaConstructionTime, 2082.2ms SatisfiabilityAnalysisTime, 1036.7ms InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 4 NumberOfNonLiveVariables, 789 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 02:18:12,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1cdeed-d282-480e-b766-97d39ad9a0ee/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...