./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE --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 ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 ............................................................................................................................................ 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_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE --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 ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-24 10:58:53,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:58:53,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:58:53,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:58:53,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:58:53,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:58:53,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:58:53,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:58:53,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:58:53,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:58:53,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:58:53,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:58:53,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:58:53,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:58:53,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:58:53,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:58:53,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:58:53,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:58:53,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:58:53,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:58:53,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:58:53,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:58:53,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:58:53,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:58:53,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:58:53,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:58:53,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:58:53,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:58:53,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:58:53,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:58:53,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:58:53,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:58:53,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:58:53,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:58:53,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:58:53,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:58:53,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:58:53,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:58:53,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:58:53,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:58:53,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:58:53,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:58:53,578 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:58:53,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:58:53,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:58:53,585 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:58:53,586 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:58:53,586 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:58:53,586 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:58:53,594 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:58:53,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:58:53,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:58:53,595 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:58:53,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:58:53,596 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:58:53,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:58:53,597 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:58:53,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:58:53,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:58:53,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:58:53,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:58:53,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:58:53,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:58:53,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:58:53,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:58:53,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:58:53,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:58:53,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:58:53,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:58:53,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:58:53,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:58:53,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:58:53,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:58:53,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:58:53,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:58:53,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:58:53,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:58:53,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:58:53,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:58:53,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:58:53,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:58:53,606 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_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 [2021-10-24 10:58:53,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:58:53,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:58:53,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:58:53,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:58:53,949 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:58:53,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2021-10-24 10:58:54,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/5032980b6/cd0ab4d9c6554931b0782f00dd51eb48/FLAG172249d83 [2021-10-24 10:58:54,590 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:58:54,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2021-10-24 10:58:54,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/5032980b6/cd0ab4d9c6554931b0782f00dd51eb48/FLAG172249d83 [2021-10-24 10:58:54,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/5032980b6/cd0ab4d9c6554931b0782f00dd51eb48 [2021-10-24 10:58:54,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:58:54,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:58:54,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:58:54,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:58:54,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:58:54,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:58:54" (1/1) ... [2021-10-24 10:58:54,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbd925e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:54, skipping insertion in model container [2021-10-24 10:58:54,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:58:54" (1/1) ... [2021-10-24 10:58:54,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:58:54,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:58:55,210 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_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2021-10-24 10:58:55,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:58:55,324 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) [2021-10-24 10:58:55,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10af92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:55, skipping insertion in model container [2021-10-24 10:58:55,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:58:55,326 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:58:55,328 INFO L168 Benchmark]: Toolchain (without parser) took 423.80 ms. Allocated memory is still 130.0 MB. Free memory was 86.8 MB in the beginning and 100.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:55,329 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 130.0 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:58:55,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.60 ms. Allocated memory is still 130.0 MB. Free memory was 86.6 MB in the beginning and 100.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:55,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 130.0 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 417.60 ms. Allocated memory is still 130.0 MB. Free memory was 86.6 MB in the beginning and 100.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 236]: 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-e943c26 [2021-10-24 10:58:57,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:58:57,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:58:57,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:58:57,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:58:57,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:58:57,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:58:57,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:58:57,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:58:57,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:58:57,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:58:58,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:58:58,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:58:58,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:58:58,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:58:58,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:58:58,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:58:58,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:58:58,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:58:58,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:58:58,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:58:58,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:58:58,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:58:58,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:58:58,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:58:58,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:58:58,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:58:58,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:58:58,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:58:58,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:58:58,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:58:58,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:58:58,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:58:58,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:58:58,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:58:58,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:58:58,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:58:58,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:58:58,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:58:58,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:58:58,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:58:58,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:58:58,149 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:58:58,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:58:58,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:58:58,152 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:58:58,152 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:58:58,152 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:58:58,153 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:58:58,153 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:58:58,154 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:58:58,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:58:58,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:58:58,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:58:58,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:58:58,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:58:58,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:58:58,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:58:58,159 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:58:58,160 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:58:58,160 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:58:58,160 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:58:58,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:58:58,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:58:58,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:58:58,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:58:58,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:58:58,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:58:58,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:58:58,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:58:58,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:58:58,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:58:58,164 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:58:58,164 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:58:58,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:58:58,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:58:58,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:58:58,166 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_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 [2021-10-24 10:58:58,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:58:58,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:58:58,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:58:58,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:58:58,671 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:58:58,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2021-10-24 10:58:58,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/d4cadf60e/89ff84982dc0417c86afed314939d0c0/FLAG279ebbf06 [2021-10-24 10:58:59,467 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:58:59,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2021-10-24 10:58:59,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/d4cadf60e/89ff84982dc0417c86afed314939d0c0/FLAG279ebbf06 [2021-10-24 10:58:59,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/data/d4cadf60e/89ff84982dc0417c86afed314939d0c0 [2021-10-24 10:58:59,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:58:59,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:58:59,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:58:59,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:58:59,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:58:59,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:58:59" (1/1) ... [2021-10-24 10:58:59,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:59, skipping insertion in model container [2021-10-24 10:58:59,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:58:59" (1/1) ... [2021-10-24 10:58:59,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:58:59,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:59:00,055 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_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2021-10-24 10:59:00,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:00,255 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:59:00,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:59:00,281 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_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2021-10-24 10:59:00,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:00,373 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:59:00,396 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_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2021-10-24 10:59:00,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:00,483 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:59:00,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00 WrapperNode [2021-10-24 10:59:00,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:00,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:00,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:59:00,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:59:00,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:00,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:59:00,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:59:00,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:59:00,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:59:00,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:59:00,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:59:00,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:59:00,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (1/1) ... [2021-10-24 10:59:00,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:00,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:59:00,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:59:00,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:59:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:59:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:59:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:59:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:59:03,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:59:03,536 INFO L299 CfgBuilder]: Removed 286 assume(true) statements. [2021-10-24 10:59:03,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:03 BoogieIcfgContainer [2021-10-24 10:59:03,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:59:03,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:59:03,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:59:03,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:59:03,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:58:59" (1/3) ... [2021-10-24 10:59:03,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0ac126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:03, skipping insertion in model container [2021-10-24 10:59:03,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:00" (2/3) ... [2021-10-24 10:59:03,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0ac126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:03, skipping insertion in model container [2021-10-24 10:59:03,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:03" (3/3) ... [2021-10-24 10:59:03,549 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2021-10-24 10:59:03,555 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:59:03,556 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:59:03,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:59:03,626 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, mAutomataTypeConcurrency=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 [2021-10-24 10:59:03,626 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:59:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 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) [2021-10-24 10:59:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:59:03,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:03,651 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:03,652 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:03,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:03,658 INFO L82 PathProgramCache]: Analyzing trace with hash -477478196, now seen corresponding path program 1 times [2021-10-24 10:59:03,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:03,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587665101] [2021-10-24 10:59:03,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:03,673 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:03,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:03,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:03,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:59:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:03,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:59:03,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:59:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:04,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:59:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:04,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:59:04,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587665101] [2021-10-24 10:59:04,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587665101] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:04,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:04,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:59:04,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314418370] [2021-10-24 10:59:04,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:59:04,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:59:04,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:59:04,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:59:04,188 INFO L87 Difference]: Start difference. First operand has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 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) [2021-10-24 10:59:04,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:04,252 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2021-10-24 10:59:04,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:59:04,253 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 [2021-10-24 10:59:04,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:04,265 INFO L225 Difference]: With dead ends: 388 [2021-10-24 10:59:04,265 INFO L226 Difference]: Without dead ends: 193 [2021-10-24 10:59:04,269 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 [2021-10-24 10:59:04,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-10-24 10:59:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-10-24 10:59:04,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 190 states have (on average 1.5157894736842106) internal successors, (288), 192 states have internal predecessors, (288), 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) [2021-10-24 10:59:04,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2021-10-24 10:59:04,341 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2021-10-24 10:59:04,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:04,342 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2021-10-24 10:59:04,342 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) [2021-10-24 10:59:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2021-10-24 10:59:04,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:59:04,345 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:04,345 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:04,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:59:04,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:59:04,561 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:04,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:04,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1388508949, now seen corresponding path program 1 times [2021-10-24 10:59:04,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:04,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277967553] [2021-10-24 10:59:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:04,563 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:04,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:04,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:59:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:04,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:59:04,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:59:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:04,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:59:04,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:04,932 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:59:04,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277967553] [2021-10-24 10:59:04,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277967553] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:04,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:04,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:59:04,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005081544] [2021-10-24 10:59:04,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:59:04,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:59:04,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:59:04,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:59:04,937 INFO L87 Difference]: Start difference. First operand 193 states and 288 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) [2021-10-24 10:59:04,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:04,955 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2021-10-24 10:59:04,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:59:04,956 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 [2021-10-24 10:59:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:04,957 INFO L225 Difference]: With dead ends: 193 [2021-10-24 10:59:04,957 INFO L226 Difference]: Without dead ends: 75 [2021-10-24 10:59:04,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:59:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-24 10:59:04,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-24 10:59:04,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 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) [2021-10-24 10:59:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-24 10:59:04,974 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2021-10-24 10:59:04,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:04,975 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-24 10:59:04,975 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) [2021-10-24 10:59:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2021-10-24 10:59:04,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:59:04,977 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:04,977 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] [2021-10-24 10:59:04,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:59:05,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:59:05,181 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:05,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:05,182 INFO L82 PathProgramCache]: Analyzing trace with hash -521457096, now seen corresponding path program 1 times [2021-10-24 10:59:05,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:05,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050133612] [2021-10-24 10:59:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:05,183 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:05,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:05,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:05,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:59:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:05,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:59:05,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:59:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:05,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:59:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:05,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:59:05,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050133612] [2021-10-24 10:59:05,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050133612] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:05,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:05,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:59:05,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41339499] [2021-10-24 10:59:05,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:59:05,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:59:05,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:59:05,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:59:05,615 INFO L87 Difference]: Start difference. First operand 75 states and 111 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) [2021-10-24 10:59:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:05,646 INFO L93 Difference]: Finished difference Result 238 states and 358 transitions. [2021-10-24 10:59:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:59:05,646 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 [2021-10-24 10:59:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:05,648 INFO L225 Difference]: With dead ends: 238 [2021-10-24 10:59:05,648 INFO L226 Difference]: Without dead ends: 169 [2021-10-24 10:59:05,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:59:05,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-10-24 10:59:05,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 96. [2021-10-24 10:59:05,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 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) [2021-10-24 10:59:05,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2021-10-24 10:59:05,663 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2021-10-24 10:59:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:05,664 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2021-10-24 10:59:05,664 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) [2021-10-24 10:59:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2021-10-24 10:59:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:59:05,665 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:05,666 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, 1, 1] [2021-10-24 10:59:05,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:59:05,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:59:05,867 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:05,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1870578463, now seen corresponding path program 1 times [2021-10-24 10:59:05,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:05,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181722232] [2021-10-24 10:59:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:05,869 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:05,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:05,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:05,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:59:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:06,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:59:06,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:59:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:06,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:59:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:06,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:59:06,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181722232] [2021-10-24 10:59:06,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181722232] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:06,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:06,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:59:06,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251257653] [2021-10-24 10:59:06,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:59:06,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:59:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:59:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:59:06,238 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-10-24 10:59:06,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:06,349 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2021-10-24 10:59:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:59:06,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-10-24 10:59:06,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:06,353 INFO L225 Difference]: With dead ends: 197 [2021-10-24 10:59:06,353 INFO L226 Difference]: Without dead ends: 107 [2021-10-24 10:59:06,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:59:06,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-24 10:59:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-10-24 10:59:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4423076923076923) internal successors, (150), 104 states have internal predecessors, (150), 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) [2021-10-24 10:59:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2021-10-24 10:59:06,376 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2021-10-24 10:59:06,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:06,377 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2021-10-24 10:59:06,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-10-24 10:59:06,377 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2021-10-24 10:59:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:59:06,379 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:06,380 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, 1, 1] [2021-10-24 10:59:06,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:59:06,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:59:06,593 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:06,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:06,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1382032589, now seen corresponding path program 1 times [2021-10-24 10:59:06,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:06,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126083739] [2021-10-24 10:59:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:06,594 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:06,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:06,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:06,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:59:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:06,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:59:06,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:59:06,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:06,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:59:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:07,104 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:59:07,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126083739] [2021-10-24 10:59:07,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126083739] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:07,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:07,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:59:07,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933925571] [2021-10-24 10:59:07,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:59:07,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:59:07,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:59:07,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:59:07,107 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-10-24 10:59:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:07,688 INFO L93 Difference]: Finished difference Result 1171 states and 1714 transitions. [2021-10-24 10:59:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 10:59:07,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 27 [2021-10-24 10:59:07,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:07,698 INFO L225 Difference]: With dead ends: 1171 [2021-10-24 10:59:07,698 INFO L226 Difference]: Without dead ends: 1072 [2021-10-24 10:59:07,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 157.0ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:59:07,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-24 10:59:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 261. [2021-10-24 10:59:07,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.4153846153846155) internal successors, (368), 260 states have internal predecessors, (368), 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) [2021-10-24 10:59:07,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 368 transitions. [2021-10-24 10:59:07,785 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 368 transitions. Word has length 27 [2021-10-24 10:59:07,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:07,786 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 368 transitions. [2021-10-24 10:59:07,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-10-24 10:59:07,787 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 368 transitions. [2021-10-24 10:59:07,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:59:07,793 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:07,793 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, 1, 1, 1] [2021-10-24 10:59:07,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:59:08,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:59:08,008 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:08,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:08,009 INFO L82 PathProgramCache]: Analyzing trace with hash -318231153, now seen corresponding path program 1 times [2021-10-24 10:59:08,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:08,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683135369] [2021-10-24 10:59:08,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:08,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:08,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:08,012 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:08,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:59:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:59:09,464 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:59:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:59:11,014 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:59:11,014 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:59:11,015 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:59:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:59:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:59:11,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:59:11,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:59:11,250 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:59:11,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:59:11 BoogieIcfgContainer [2021-10-24 10:59:11,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:59:11,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:59:11,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:59:11,410 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:59:11,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:03" (3/4) ... [2021-10-24 10:59:11,414 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:59:11,547 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:59:11,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:59:11,549 INFO L168 Benchmark]: Toolchain (without parser) took 11853.44 ms. Allocated memory was 79.7 MB in the beginning and 121.6 MB in the end (delta: 41.9 MB). Free memory was 43.7 MB in the beginning and 79.7 MB in the end (delta: -36.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:11,550 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 61.4 MB in the beginning and 61.3 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:11,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.41 ms. Allocated memory is still 79.7 MB. Free memory was 43.5 MB in the beginning and 48.3 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:11,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.29 ms. Allocated memory is still 79.7 MB. Free memory was 48.1 MB in the beginning and 43.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:11,552 INFO L168 Benchmark]: Boogie Preprocessor took 95.26 ms. Allocated memory is still 79.7 MB. Free memory was 43.4 MB in the beginning and 39.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:11,553 INFO L168 Benchmark]: RCFGBuilder took 2850.62 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 39.7 MB in the beginning and 53.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:11,553 INFO L168 Benchmark]: TraceAbstraction took 7867.83 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 91.3 MB in the end (delta: -37.9 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:11,553 INFO L168 Benchmark]: Witness Printer took 137.92 ms. Allocated memory is still 121.6 MB. Free memory was 91.3 MB in the beginning and 79.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:11,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 61.4 MB in the beginning and 61.3 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 784.41 ms. Allocated memory is still 79.7 MB. Free memory was 43.5 MB in the beginning and 48.3 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.29 ms. Allocated memory is still 79.7 MB. Free memory was 48.1 MB in the beginning and 43.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.26 ms. Allocated memory is still 79.7 MB. Free memory was 43.4 MB in the beginning and 39.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2850.62 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 39.7 MB in the beginning and 53.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7867.83 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 91.3 MB in the end (delta: -37.9 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. * Witness Printer took 137.92 ms. Allocated memory is still 121.6 MB. Free memory was 91.3 MB in the beginning and 79.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 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: 203]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L960] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L114] COND TRUE waterLevel < 2 [L115] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L994] tmp___1 = __VERIFIER_nondet_int() [L996] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L904] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L911] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L685] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L692] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L929] tmp___0 = getWaterLevel() [L931] COND TRUE tmp___0 == 2 [L818] int retValue_acc ; [L821] retValue_acc = pumpRunning [L822] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L933] tmp___1 = isPumpRunning() [L935] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L203] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 203]: 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: 203]: 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, 197 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7628.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 23.5ms, AutomataDifference: 873.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 744 SDtfs, 1742 SDslu, 1291 SDs, 0 SdLazy, 225 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 296.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 183.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 191.0ms AutomataMinimizationTime, 5 MinimizatonAttempts, 886 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 138.9ms SsaConstructionTime, 1949.5ms SatisfiabilityAnalysisTime, 1019.3ms InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 4 NumberOfNonLiveVariables, 996 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:59:11,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4afa4cd-3c12-4fd5-bfe3-0cd7b492eefd/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...